Mercurial > vim
annotate src/regexp_nfa.c @ 4686:8db697ae406a v7.3.1090
updated for version 7.3.1090
Problem: New regexp engine does not support \z1 .. \z9 and \z(.
Solution: Implement the syntax submatches.
| author | Bram Moolenaar <bram@vim.org> |
|---|---|
| date | Sat, 01 Jun 2013 23:02:54 +0200 |
| parents | 2f51ee8825db |
| children | 371cc0c44097 |
| rev | line source |
|---|---|
| 4444 | 1 /* vi:set ts=8 sts=4 sw=4: |
| 2 * | |
| 3 * NFA regular expression implementation. | |
| 4 * | |
| 5 * This file is included in "regexp.c". | |
| 6 */ | |
| 7 | |
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8 /* |
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9 * Logging of NFA engine. |
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10 * |
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11 * The NFA engine can write four log files: |
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12 * - Error log: Contains NFA engine's fatal errors. |
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13 * - Dump log: Contains compiled NFA state machine's information. |
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14 * - Run log: Contains information of matching procedure. |
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15 * - Debug log: Contains detailed information of matching procedure. Can be |
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16 * disabled by undefining NFA_REGEXP_DEBUG_LOG. |
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17 * The first one can also be used without debug mode. |
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18 * The last three are enabled when compiled as debug mode and individually |
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19 * disabled by commenting them out. |
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20 * The log files can get quite big! |
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21 * Do disable all of this when compiling Vim for debugging, undefine DEBUG in |
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22 * regexp.c |
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23 */ |
| 4444 | 24 #ifdef DEBUG |
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25 # define NFA_REGEXP_ERROR_LOG "nfa_regexp_error.log" |
| 4444 | 26 # define ENABLE_LOG |
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27 # define NFA_REGEXP_DUMP_LOG "nfa_regexp_dump.log" |
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28 # define NFA_REGEXP_RUN_LOG "nfa_regexp_run.log" |
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29 # define NFA_REGEXP_DEBUG_LOG "nfa_regexp_debug.log" |
| 4444 | 30 #endif |
| 31 | |
| 32 enum | |
| 33 { | |
| 34 NFA_SPLIT = -1024, | |
| 35 NFA_MATCH, | |
| 36 NFA_SKIP_CHAR, /* matches a 0-length char */ | |
| 37 NFA_END_NEG_RANGE, /* Used when expanding [^ab] */ | |
| 38 | |
| 39 NFA_CONCAT, | |
| 40 NFA_OR, | |
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41 NFA_STAR, /* greedy * */ |
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42 NFA_STAR_NONGREEDY, /* non-greedy * */ |
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43 NFA_QUEST, /* greedy \? */ |
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44 NFA_QUEST_NONGREEDY, /* non-greedy \? */ |
| 4444 | 45 NFA_NOT, /* used for [^ab] negated char ranges */ |
| 46 | |
| 47 NFA_BOL, /* ^ Begin line */ | |
| 48 NFA_EOL, /* $ End line */ | |
| 49 NFA_BOW, /* \< Begin word */ | |
| 50 NFA_EOW, /* \> End word */ | |
| 51 NFA_BOF, /* \%^ Begin file */ | |
| 52 NFA_EOF, /* \%$ End file */ | |
| 53 NFA_NEWL, | |
| 54 NFA_ZSTART, /* Used for \zs */ | |
| 55 NFA_ZEND, /* Used for \ze */ | |
| 56 NFA_NOPEN, /* Start of subexpression marked with \%( */ | |
| 57 NFA_NCLOSE, /* End of subexpr. marked with \%( ... \) */ | |
| 58 NFA_START_INVISIBLE, | |
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59 NFA_START_INVISIBLE_BEFORE, |
| 4444 | 60 NFA_END_INVISIBLE, |
| 61 NFA_COMPOSING, /* Next nodes in NFA are part of the | |
| 62 composing multibyte char */ | |
| 63 NFA_END_COMPOSING, /* End of a composing char in the NFA */ | |
| 64 | |
| 65 /* The following are used only in the postfix form, not in the NFA */ | |
| 66 NFA_PREV_ATOM_NO_WIDTH, /* Used for \@= */ | |
| 67 NFA_PREV_ATOM_NO_WIDTH_NEG, /* Used for \@! */ | |
| 68 NFA_PREV_ATOM_JUST_BEFORE, /* Used for \@<= */ | |
| 69 NFA_PREV_ATOM_JUST_BEFORE_NEG, /* Used for \@<! */ | |
| 70 NFA_PREV_ATOM_LIKE_PATTERN, /* Used for \@> */ | |
| 71 | |
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72 NFA_BACKREF1, /* \1 */ |
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73 NFA_BACKREF2, /* \2 */ |
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74 NFA_BACKREF3, /* \3 */ |
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75 NFA_BACKREF4, /* \4 */ |
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76 NFA_BACKREF5, /* \5 */ |
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77 NFA_BACKREF6, /* \6 */ |
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78 NFA_BACKREF7, /* \7 */ |
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79 NFA_BACKREF8, /* \8 */ |
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80 NFA_BACKREF9, /* \9 */ |
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81 #ifdef FEAT_SYN_HL |
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82 NFA_ZREF1, /* \z1 */ |
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83 NFA_ZREF2, /* \z2 */ |
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84 NFA_ZREF3, /* \z3 */ |
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85 NFA_ZREF4, /* \z4 */ |
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86 NFA_ZREF5, /* \z5 */ |
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87 NFA_ZREF6, /* \z6 */ |
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88 NFA_ZREF7, /* \z7 */ |
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89 NFA_ZREF8, /* \z8 */ |
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90 NFA_ZREF9, /* \z9 */ |
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91 #endif |
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92 NFA_SKIP, /* Skip characters */ |
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93 |
| 4444 | 94 NFA_MOPEN, |
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95 NFA_MOPEN1, |
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96 NFA_MOPEN2, |
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97 NFA_MOPEN3, |
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98 NFA_MOPEN4, |
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99 NFA_MOPEN5, |
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100 NFA_MOPEN6, |
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101 NFA_MOPEN7, |
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102 NFA_MOPEN8, |
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103 NFA_MOPEN9, |
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104 |
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105 NFA_MCLOSE, |
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106 NFA_MCLOSE1, |
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107 NFA_MCLOSE2, |
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108 NFA_MCLOSE3, |
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109 NFA_MCLOSE4, |
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110 NFA_MCLOSE5, |
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111 NFA_MCLOSE6, |
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112 NFA_MCLOSE7, |
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113 NFA_MCLOSE8, |
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114 NFA_MCLOSE9, |
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115 |
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116 #ifdef FEAT_SYN_HL |
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117 NFA_ZOPEN, |
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118 NFA_ZOPEN1, |
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119 NFA_ZOPEN2, |
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120 NFA_ZOPEN3, |
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121 NFA_ZOPEN4, |
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122 NFA_ZOPEN5, |
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123 NFA_ZOPEN6, |
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124 NFA_ZOPEN7, |
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125 NFA_ZOPEN8, |
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126 NFA_ZOPEN9, |
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127 |
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128 NFA_ZCLOSE, |
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129 NFA_ZCLOSE1, |
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130 NFA_ZCLOSE2, |
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131 NFA_ZCLOSE3, |
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132 NFA_ZCLOSE4, |
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133 NFA_ZCLOSE5, |
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134 NFA_ZCLOSE6, |
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135 NFA_ZCLOSE7, |
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136 NFA_ZCLOSE8, |
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137 NFA_ZCLOSE9, |
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138 #endif |
| 4444 | 139 |
| 140 /* NFA_FIRST_NL */ | |
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141 NFA_ANY, /* Match any one character. */ |
| 4444 | 142 NFA_ANYOF, /* Match any character in this string. */ |
| 143 NFA_ANYBUT, /* Match any character not in this string. */ | |
| 144 NFA_IDENT, /* Match identifier char */ | |
| 145 NFA_SIDENT, /* Match identifier char but no digit */ | |
| 146 NFA_KWORD, /* Match keyword char */ | |
| 147 NFA_SKWORD, /* Match word char but no digit */ | |
| 148 NFA_FNAME, /* Match file name char */ | |
| 149 NFA_SFNAME, /* Match file name char but no digit */ | |
| 150 NFA_PRINT, /* Match printable char */ | |
| 151 NFA_SPRINT, /* Match printable char but no digit */ | |
| 152 NFA_WHITE, /* Match whitespace char */ | |
| 153 NFA_NWHITE, /* Match non-whitespace char */ | |
| 154 NFA_DIGIT, /* Match digit char */ | |
| 155 NFA_NDIGIT, /* Match non-digit char */ | |
| 156 NFA_HEX, /* Match hex char */ | |
| 157 NFA_NHEX, /* Match non-hex char */ | |
| 158 NFA_OCTAL, /* Match octal char */ | |
| 159 NFA_NOCTAL, /* Match non-octal char */ | |
| 160 NFA_WORD, /* Match word char */ | |
| 161 NFA_NWORD, /* Match non-word char */ | |
| 162 NFA_HEAD, /* Match head char */ | |
| 163 NFA_NHEAD, /* Match non-head char */ | |
| 164 NFA_ALPHA, /* Match alpha char */ | |
| 165 NFA_NALPHA, /* Match non-alpha char */ | |
| 166 NFA_LOWER, /* Match lowercase char */ | |
| 167 NFA_NLOWER, /* Match non-lowercase char */ | |
| 168 NFA_UPPER, /* Match uppercase char */ | |
| 169 NFA_NUPPER, /* Match non-uppercase char */ | |
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170 |
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171 NFA_CURSOR, /* Match cursor pos */ |
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172 NFA_LNUM, /* Match line number */ |
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173 NFA_LNUM_GT, /* Match > line number */ |
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174 NFA_LNUM_LT, /* Match < line number */ |
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175 NFA_COL, /* Match cursor column */ |
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176 NFA_COL_GT, /* Match > cursor column */ |
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177 NFA_COL_LT, /* Match < cursor column */ |
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178 NFA_VCOL, /* Match cursor virtual column */ |
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179 NFA_VCOL_GT, /* Match > cursor virtual column */ |
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180 NFA_VCOL_LT, /* Match < cursor virtual column */ |
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181 |
| 4444 | 182 NFA_FIRST_NL = NFA_ANY + ADD_NL, |
| 183 NFA_LAST_NL = NFA_NUPPER + ADD_NL, | |
| 184 | |
| 185 /* Character classes [:alnum:] etc */ | |
| 186 NFA_CLASS_ALNUM, | |
| 187 NFA_CLASS_ALPHA, | |
| 188 NFA_CLASS_BLANK, | |
| 189 NFA_CLASS_CNTRL, | |
| 190 NFA_CLASS_DIGIT, | |
| 191 NFA_CLASS_GRAPH, | |
| 192 NFA_CLASS_LOWER, | |
| 193 NFA_CLASS_PRINT, | |
| 194 NFA_CLASS_PUNCT, | |
| 195 NFA_CLASS_SPACE, | |
| 196 NFA_CLASS_UPPER, | |
| 197 NFA_CLASS_XDIGIT, | |
| 198 NFA_CLASS_TAB, | |
| 199 NFA_CLASS_RETURN, | |
| 200 NFA_CLASS_BACKSPACE, | |
| 201 NFA_CLASS_ESCAPE | |
| 202 }; | |
| 203 | |
| 204 /* Keep in sync with classchars. */ | |
| 205 static int nfa_classcodes[] = { | |
| 206 NFA_ANY, NFA_IDENT, NFA_SIDENT, NFA_KWORD,NFA_SKWORD, | |
| 207 NFA_FNAME, NFA_SFNAME, NFA_PRINT, NFA_SPRINT, | |
| 208 NFA_WHITE, NFA_NWHITE, NFA_DIGIT, NFA_NDIGIT, | |
| 209 NFA_HEX, NFA_NHEX, NFA_OCTAL, NFA_NOCTAL, | |
| 210 NFA_WORD, NFA_NWORD, NFA_HEAD, NFA_NHEAD, | |
| 211 NFA_ALPHA, NFA_NALPHA, NFA_LOWER, NFA_NLOWER, | |
| 212 NFA_UPPER, NFA_NUPPER | |
| 213 }; | |
| 214 | |
| 215 static char_u e_misplaced[] = N_("E866: (NFA regexp) Misplaced %c"); | |
| 216 | |
| 217 /* | |
| 218 * NFA errors can be of 3 types: | |
| 219 * *** NFA runtime errors, when something unknown goes wrong. The NFA fails | |
| 220 * silently and revert the to backtracking engine. | |
| 221 * syntax_error = FALSE; | |
| 222 * *** Regexp syntax errors, when the input regexp is not syntactically correct. | |
| 223 * The NFA engine displays an error message, and nothing else happens. | |
| 224 * syntax_error = TRUE | |
| 225 * *** Unsupported features, when the input regexp uses an operator that is not | |
| 226 * implemented in the NFA. The NFA engine fails silently, and reverts to the | |
| 227 * old backtracking engine. | |
| 228 * syntax_error = FALSE | |
| 229 * "The NFA fails" means that "compiling the regexp with the NFA fails": | |
| 230 * nfa_regcomp() returns FAIL. | |
| 231 */ | |
| 232 static int syntax_error = FALSE; | |
| 233 | |
| 234 /* NFA regexp \ze operator encountered. */ | |
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235 static int nfa_has_zend; |
| 4444 | 236 |
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237 /* NFA regexp \1 .. \9 encountered. */ |
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238 static int nfa_has_backref; |
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239 |
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240 /* Number of sub expressions actually being used during execution. 1 if only |
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241 * the whole match (subexpr 0) is used. */ |
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242 static int nfa_nsubexpr; |
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243 |
| 4444 | 244 static int *post_start; /* holds the postfix form of r.e. */ |
| 245 static int *post_end; | |
| 246 static int *post_ptr; | |
| 247 | |
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248 static int nstate; /* Number of states in the NFA. Also used when |
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249 * executing. */ |
| 4444 | 250 static int istate; /* Index in the state vector, used in new_state() */ |
| 251 | |
| 252 | |
| 253 static int nfa_regcomp_start __ARGS((char_u*expr, int re_flags)); | |
| 254 static int nfa_recognize_char_class __ARGS((char_u *start, char_u *end, int extra_newl)); | |
| 255 static int nfa_emit_equi_class __ARGS((int c, int neg)); | |
| 256 static int nfa_regatom __ARGS((void)); | |
| 257 static int nfa_regpiece __ARGS((void)); | |
| 258 static int nfa_regconcat __ARGS((void)); | |
| 259 static int nfa_regbranch __ARGS((void)); | |
| 260 static int nfa_reg __ARGS((int paren)); | |
| 261 #ifdef DEBUG | |
| 262 static void nfa_set_code __ARGS((int c)); | |
| 263 static void nfa_postfix_dump __ARGS((char_u *expr, int retval)); | |
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264 static void nfa_print_state __ARGS((FILE *debugf, nfa_state_T *state)); |
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265 static void nfa_print_state2 __ARGS((FILE *debugf, nfa_state_T *state, garray_T *indent)); |
| 4444 | 266 static void nfa_dump __ARGS((nfa_regprog_T *prog)); |
| 267 #endif | |
| 268 static int *re2post __ARGS((void)); | |
| 269 static nfa_state_T *new_state __ARGS((int c, nfa_state_T *out, nfa_state_T *out1)); | |
| 270 static nfa_state_T *post2nfa __ARGS((int *postfix, int *end, int nfa_calc_size)); | |
| 271 static int check_char_class __ARGS((int class, int c)); | |
| 272 static void st_error __ARGS((int *postfix, int *end, int *p)); | |
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273 static void nfa_set_neg_listids __ARGS((nfa_state_T *start)); |
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274 static void nfa_set_null_listids __ARGS((nfa_state_T *start)); |
| 4444 | 275 static void nfa_save_listids __ARGS((nfa_state_T *start, int *list)); |
| 276 static void nfa_restore_listids __ARGS((nfa_state_T *start, int *list)); | |
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277 static int nfa_re_num_cmp __ARGS((long_u val, int op, long_u pos)); |
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278 static long nfa_regtry __ARGS((nfa_regprog_T *prog, colnr_T col)); |
| 4444 | 279 static long nfa_regexec_both __ARGS((char_u *line, colnr_T col)); |
| 280 static regprog_T *nfa_regcomp __ARGS((char_u *expr, int re_flags)); | |
| 281 static int nfa_regexec __ARGS((regmatch_T *rmp, char_u *line, colnr_T col)); | |
| 282 static long nfa_regexec_multi __ARGS((regmmatch_T *rmp, win_T *win, buf_T *buf, linenr_T lnum, colnr_T col, proftime_T *tm)); | |
| 283 | |
| 284 /* helper functions used when doing re2post() ... regatom() parsing */ | |
| 285 #define EMIT(c) do { \ | |
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286 if (post_ptr >= post_end && realloc_post_list() == FAIL) \ |
| 4444 | 287 return FAIL; \ |
| 288 *post_ptr++ = c; \ | |
| 289 } while (0) | |
| 290 | |
| 291 /* | |
| 292 * Initialize internal variables before NFA compilation. | |
| 293 * Return OK on success, FAIL otherwise. | |
| 294 */ | |
| 295 static int | |
| 296 nfa_regcomp_start(expr, re_flags) | |
| 297 char_u *expr; | |
| 298 int re_flags; /* see vim_regcomp() */ | |
| 299 { | |
| 4458 | 300 size_t postfix_size; |
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301 int nstate_max; |
| 4444 | 302 |
| 303 nstate = 0; | |
| 304 istate = 0; | |
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305 /* A reasonable estimation for maximum size */ |
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306 nstate_max = (int)(STRLEN(expr) + 1) * 25; |
| 4444 | 307 |
| 4454 | 308 /* Some items blow up in size, such as [A-z]. Add more space for that. |
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309 * When it is still not enough realloc_post_list() will be used. */ |
| 4458 | 310 nstate_max += 1000; |
| 4454 | 311 |
| 312 /* Size for postfix representation of expr. */ | |
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313 postfix_size = sizeof(int) * nstate_max; |
| 4454 | 314 |
| 4444 | 315 post_start = (int *)lalloc(postfix_size, TRUE); |
| 316 if (post_start == NULL) | |
| 317 return FAIL; | |
| 318 vim_memset(post_start, 0, postfix_size); | |
| 319 post_ptr = post_start; | |
| 4454 | 320 post_end = post_start + nstate_max; |
| 4444 | 321 nfa_has_zend = FALSE; |
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322 nfa_has_backref = FALSE; |
| 4444 | 323 |
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324 /* shared with BT engine */ |
| 4444 | 325 regcomp_start(expr, re_flags); |
| 326 | |
| 327 return OK; | |
| 328 } | |
| 329 | |
| 330 /* | |
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331 * Allocate more space for post_start. Called when |
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332 * running above the estimated number of states. |
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333 */ |
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334 static int |
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335 realloc_post_list() |
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336 { |
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337 int nstate_max = (int)(post_end - post_start); |
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338 int new_max = nstate_max + 1000; |
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339 int *new_start; |
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340 int *old_start; |
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341 |
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342 new_start = (int *)lalloc(new_max * sizeof(int), TRUE); |
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343 if (new_start == NULL) |
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344 return FAIL; |
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345 mch_memmove(new_start, post_start, nstate_max * sizeof(int)); |
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346 vim_memset(new_start + nstate_max, 0, 1000 * sizeof(int)); |
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347 old_start = post_start; |
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348 post_start = new_start; |
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349 post_ptr = new_start + (post_ptr - old_start); |
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350 post_end = post_start + new_max; |
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351 vim_free(old_start); |
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352 return OK; |
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353 } |
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354 |
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355 /* |
| 4444 | 356 * Search between "start" and "end" and try to recognize a |
| 357 * character class in expanded form. For example [0-9]. | |
| 358 * On success, return the id the character class to be emitted. | |
| 359 * On failure, return 0 (=FAIL) | |
| 360 * Start points to the first char of the range, while end should point | |
| 361 * to the closing brace. | |
| 362 */ | |
| 363 static int | |
| 364 nfa_recognize_char_class(start, end, extra_newl) | |
| 365 char_u *start; | |
| 366 char_u *end; | |
| 367 int extra_newl; | |
| 368 { | |
| 369 int i; | |
| 370 /* Each of these variables takes up a char in "config[]", | |
| 371 * in the order they are here. */ | |
| 372 int not = FALSE, af = FALSE, AF = FALSE, az = FALSE, AZ = FALSE, | |
| 373 o7 = FALSE, o9 = FALSE, underscore = FALSE, newl = FALSE; | |
| 374 char_u *p; | |
| 375 #define NCONFIGS 16 | |
| 376 int classid[NCONFIGS] = { | |
| 377 NFA_DIGIT, NFA_NDIGIT, NFA_HEX, NFA_NHEX, | |
| 378 NFA_OCTAL, NFA_NOCTAL, NFA_WORD, NFA_NWORD, | |
| 379 NFA_HEAD, NFA_NHEAD, NFA_ALPHA, NFA_NALPHA, | |
| 380 NFA_LOWER, NFA_NLOWER, NFA_UPPER, NFA_NUPPER | |
| 381 }; | |
| 4450 | 382 char_u myconfig[10]; |
| 4444 | 383 char_u config[NCONFIGS][9] = { |
| 384 "000000100", /* digit */ | |
| 385 "100000100", /* non digit */ | |
| 386 "011000100", /* hex-digit */ | |
| 387 "111000100", /* non hex-digit */ | |
| 388 "000001000", /* octal-digit */ | |
| 389 "100001000", /* [^0-7] */ | |
| 390 "000110110", /* [0-9A-Za-z_] */ | |
| 391 "100110110", /* [^0-9A-Za-z_] */ | |
| 392 "000110010", /* head of word */ | |
| 393 "100110010", /* not head of word */ | |
| 394 "000110000", /* alphabetic char a-z */ | |
| 395 "100110000", /* non alphabetic char */ | |
| 396 "000100000", /* lowercase letter */ | |
| 397 "100100000", /* non lowercase */ | |
| 398 "000010000", /* uppercase */ | |
| 399 "100010000" /* non uppercase */ | |
| 400 }; | |
| 401 | |
| 402 if (extra_newl == TRUE) | |
| 403 newl = TRUE; | |
| 404 | |
| 405 if (*end != ']') | |
| 406 return FAIL; | |
| 407 p = start; | |
| 408 if (*p == '^') | |
| 409 { | |
| 410 not = TRUE; | |
| 411 p ++; | |
| 412 } | |
| 413 | |
| 414 while (p < end) | |
| 415 { | |
| 416 if (p + 2 < end && *(p + 1) == '-') | |
| 417 { | |
| 418 switch (*p) | |
| 419 { | |
| 420 case '0': | |
| 421 if (*(p + 2) == '9') | |
| 422 { | |
| 423 o9 = TRUE; | |
| 424 break; | |
| 425 } | |
| 426 else | |
| 427 if (*(p + 2) == '7') | |
| 428 { | |
| 429 o7 = TRUE; | |
| 430 break; | |
| 431 } | |
| 432 case 'a': | |
| 433 if (*(p + 2) == 'z') | |
| 434 { | |
| 435 az = TRUE; | |
| 436 break; | |
| 437 } | |
| 438 else | |
| 439 if (*(p + 2) == 'f') | |
| 440 { | |
| 441 af = TRUE; | |
| 442 break; | |
| 443 } | |
| 444 case 'A': | |
| 445 if (*(p + 2) == 'Z') | |
| 446 { | |
| 447 AZ = TRUE; | |
| 448 break; | |
| 449 } | |
| 450 else | |
| 451 if (*(p + 2) == 'F') | |
| 452 { | |
| 453 AF = TRUE; | |
| 454 break; | |
| 455 } | |
| 456 /* FALLTHROUGH */ | |
| 457 default: | |
| 458 return FAIL; | |
| 459 } | |
| 460 p += 3; | |
| 461 } | |
| 462 else if (p + 1 < end && *p == '\\' && *(p + 1) == 'n') | |
| 463 { | |
| 464 newl = TRUE; | |
| 465 p += 2; | |
| 466 } | |
| 467 else if (*p == '_') | |
| 468 { | |
| 469 underscore = TRUE; | |
| 470 p ++; | |
| 471 } | |
| 472 else if (*p == '\n') | |
| 473 { | |
| 474 newl = TRUE; | |
| 475 p ++; | |
| 476 } | |
| 477 else | |
| 478 return FAIL; | |
| 479 } /* while (p < end) */ | |
| 480 | |
| 481 if (p != end) | |
| 482 return FAIL; | |
| 483 | |
| 484 /* build the config that represents the ranges we gathered */ | |
| 485 STRCPY(myconfig, "000000000"); | |
| 486 if (not == TRUE) | |
| 487 myconfig[0] = '1'; | |
| 488 if (af == TRUE) | |
| 489 myconfig[1] = '1'; | |
| 490 if (AF == TRUE) | |
| 491 myconfig[2] = '1'; | |
| 492 if (az == TRUE) | |
| 493 myconfig[3] = '1'; | |
| 494 if (AZ == TRUE) | |
| 495 myconfig[4] = '1'; | |
| 496 if (o7 == TRUE) | |
| 497 myconfig[5] = '1'; | |
| 498 if (o9 == TRUE) | |
| 499 myconfig[6] = '1'; | |
| 500 if (underscore == TRUE) | |
| 501 myconfig[7] = '1'; | |
| 502 if (newl == TRUE) | |
| 503 { | |
| 504 myconfig[8] = '1'; | |
| 505 extra_newl = ADD_NL; | |
| 506 } | |
| 507 /* try to recognize character classes */ | |
| 508 for (i = 0; i < NCONFIGS; i++) | |
| 4450 | 509 if (STRNCMP(myconfig, config[i], 8) == 0) |
| 4444 | 510 return classid[i] + extra_newl; |
| 511 | |
| 512 /* fallthrough => no success so far */ | |
| 513 return FAIL; | |
| 514 | |
| 515 #undef NCONFIGS | |
| 516 } | |
| 517 | |
| 518 /* | |
| 519 * Produce the bytes for equivalence class "c". | |
| 520 * Currently only handles latin1, latin9 and utf-8. | |
| 521 * Emits bytes in postfix notation: 'a,b,NFA_OR,c,NFA_OR' is | |
| 522 * equivalent to 'a OR b OR c' | |
| 523 * | |
| 524 * NOTE! When changing this function, also update reg_equi_class() | |
| 525 */ | |
| 526 static int | |
| 527 nfa_emit_equi_class(c, neg) | |
| 528 int c; | |
| 529 int neg; | |
| 530 { | |
| 531 int first = TRUE; | |
| 532 int glue = neg == TRUE ? NFA_CONCAT : NFA_OR; | |
| 533 #define EMIT2(c) \ | |
| 534 EMIT(c); \ | |
| 535 if (neg == TRUE) { \ | |
| 536 EMIT(NFA_NOT); \ | |
| 537 } \ | |
| 538 if (first == FALSE) \ | |
| 539 EMIT(glue); \ | |
| 540 else \ | |
| 541 first = FALSE; \ | |
| 542 | |
| 543 #ifdef FEAT_MBYTE | |
| 544 if (enc_utf8 || STRCMP(p_enc, "latin1") == 0 | |
| 545 || STRCMP(p_enc, "iso-8859-15") == 0) | |
| 546 #endif | |
| 547 { | |
| 548 switch (c) | |
| 549 { | |
| 550 case 'A': case '\300': case '\301': case '\302': | |
| 551 case '\303': case '\304': case '\305': | |
| 552 EMIT2('A'); EMIT2('\300'); EMIT2('\301'); | |
| 553 EMIT2('\302'); EMIT2('\303'); EMIT2('\304'); | |
| 554 EMIT2('\305'); | |
| 555 return OK; | |
| 556 | |
| 557 case 'C': case '\307': | |
| 558 EMIT2('C'); EMIT2('\307'); | |
| 559 return OK; | |
| 560 | |
| 561 case 'E': case '\310': case '\311': case '\312': case '\313': | |
| 562 EMIT2('E'); EMIT2('\310'); EMIT2('\311'); | |
| 563 EMIT2('\312'); EMIT2('\313'); | |
| 564 return OK; | |
| 565 | |
| 566 case 'I': case '\314': case '\315': case '\316': case '\317': | |
| 567 EMIT2('I'); EMIT2('\314'); EMIT2('\315'); | |
| 568 EMIT2('\316'); EMIT2('\317'); | |
| 569 return OK; | |
| 570 | |
| 571 case 'N': case '\321': | |
| 572 EMIT2('N'); EMIT2('\321'); | |
| 573 return OK; | |
| 574 | |
| 575 case 'O': case '\322': case '\323': case '\324': case '\325': | |
| 576 case '\326': | |
| 577 EMIT2('O'); EMIT2('\322'); EMIT2('\323'); | |
| 578 EMIT2('\324'); EMIT2('\325'); EMIT2('\326'); | |
| 579 return OK; | |
| 580 | |
| 581 case 'U': case '\331': case '\332': case '\333': case '\334': | |
| 582 EMIT2('U'); EMIT2('\331'); EMIT2('\332'); | |
| 583 EMIT2('\333'); EMIT2('\334'); | |
| 584 return OK; | |
| 585 | |
| 586 case 'Y': case '\335': | |
| 587 EMIT2('Y'); EMIT2('\335'); | |
| 588 return OK; | |
| 589 | |
| 590 case 'a': case '\340': case '\341': case '\342': | |
| 591 case '\343': case '\344': case '\345': | |
| 592 EMIT2('a'); EMIT2('\340'); EMIT2('\341'); | |
| 593 EMIT2('\342'); EMIT2('\343'); EMIT2('\344'); | |
| 594 EMIT2('\345'); | |
| 595 return OK; | |
| 596 | |
| 597 case 'c': case '\347': | |
| 598 EMIT2('c'); EMIT2('\347'); | |
| 599 return OK; | |
| 600 | |
| 601 case 'e': case '\350': case '\351': case '\352': case '\353': | |
| 602 EMIT2('e'); EMIT2('\350'); EMIT2('\351'); | |
| 603 EMIT2('\352'); EMIT2('\353'); | |
| 604 return OK; | |
| 605 | |
| 606 case 'i': case '\354': case '\355': case '\356': case '\357': | |
| 607 EMIT2('i'); EMIT2('\354'); EMIT2('\355'); | |
| 608 EMIT2('\356'); EMIT2('\357'); | |
| 609 return OK; | |
| 610 | |
| 611 case 'n': case '\361': | |
| 612 EMIT2('n'); EMIT2('\361'); | |
| 613 return OK; | |
| 614 | |
| 615 case 'o': case '\362': case '\363': case '\364': case '\365': | |
| 616 case '\366': | |
| 617 EMIT2('o'); EMIT2('\362'); EMIT2('\363'); | |
| 618 EMIT2('\364'); EMIT2('\365'); EMIT2('\366'); | |
| 619 return OK; | |
| 620 | |
| 621 case 'u': case '\371': case '\372': case '\373': case '\374': | |
| 622 EMIT2('u'); EMIT2('\371'); EMIT2('\372'); | |
| 623 EMIT2('\373'); EMIT2('\374'); | |
| 624 return OK; | |
| 625 | |
| 626 case 'y': case '\375': case '\377': | |
| 627 EMIT2('y'); EMIT2('\375'); EMIT2('\377'); | |
| 628 return OK; | |
| 629 | |
| 630 default: | |
| 631 return FAIL; | |
| 632 } | |
| 633 } | |
| 634 | |
| 635 EMIT(c); | |
| 636 return OK; | |
| 637 #undef EMIT2 | |
| 638 } | |
| 639 | |
| 640 /* | |
| 641 * Code to parse regular expression. | |
| 642 * | |
| 643 * We try to reuse parsing functions in regexp.c to | |
| 644 * minimize surprise and keep the syntax consistent. | |
| 645 */ | |
| 646 | |
| 647 /* | |
| 648 * Parse the lowest level. | |
| 649 * | |
| 650 * An atom can be one of a long list of items. Many atoms match one character | |
| 651 * in the text. It is often an ordinary character or a character class. | |
| 652 * Braces can be used to make a pattern into an atom. The "\z(\)" construct | |
| 653 * is only for syntax highlighting. | |
| 654 * | |
| 655 * atom ::= ordinary-atom | |
| 656 * or \( pattern \) | |
| 657 * or \%( pattern \) | |
| 658 * or \z( pattern \) | |
| 659 */ | |
| 660 static int | |
| 661 nfa_regatom() | |
| 662 { | |
| 663 int c; | |
| 664 int charclass; | |
| 665 int equiclass; | |
| 666 int collclass; | |
| 667 int got_coll_char; | |
| 668 char_u *p; | |
| 669 char_u *endp; | |
| 670 #ifdef FEAT_MBYTE | |
| 671 char_u *old_regparse = regparse; | |
| 672 #endif | |
| 673 int extra = 0; | |
| 674 int first; | |
| 675 int emit_range; | |
| 676 int negated; | |
| 677 int result; | |
| 678 int startc = -1; | |
| 679 int endc = -1; | |
| 680 int oldstartc = -1; | |
| 681 int cpo_lit; /* 'cpoptions' contains 'l' flag */ | |
| 682 int cpo_bsl; /* 'cpoptions' contains '\' flag */ | |
| 683 int glue; /* ID that will "glue" nodes together */ | |
| 684 | |
| 685 cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL; | |
| 686 cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL; | |
| 687 | |
| 688 c = getchr(); | |
| 689 switch (c) | |
| 690 { | |
|
4543
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691 case NUL: |
|
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692 syntax_error = TRUE; |
|
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|
693 EMSG_RET_FAIL(_("E865: (NFA) Regexp end encountered prematurely")); |
|
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|
694 |
| 4444 | 695 case Magic('^'): |
| 696 EMIT(NFA_BOL); | |
| 697 break; | |
| 698 | |
| 699 case Magic('$'): | |
| 700 EMIT(NFA_EOL); | |
| 701 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 702 had_eol = TRUE; | |
| 703 #endif | |
| 704 break; | |
| 705 | |
| 706 case Magic('<'): | |
| 707 EMIT(NFA_BOW); | |
| 708 break; | |
| 709 | |
| 710 case Magic('>'): | |
| 711 EMIT(NFA_EOW); | |
| 712 break; | |
| 713 | |
| 714 case Magic('_'): | |
| 715 c = no_Magic(getchr()); | |
| 716 if (c == '^') /* "\_^" is start-of-line */ | |
| 717 { | |
| 718 EMIT(NFA_BOL); | |
| 719 break; | |
| 720 } | |
| 721 if (c == '$') /* "\_$" is end-of-line */ | |
| 722 { | |
| 723 EMIT(NFA_EOL); | |
| 724 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 725 had_eol = TRUE; | |
| 726 #endif | |
| 727 break; | |
| 728 } | |
| 729 | |
| 730 extra = ADD_NL; | |
| 731 | |
| 732 /* "\_[" is collection plus newline */ | |
| 733 if (c == '[') | |
|
4517
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|
734 goto collection; |
| 4444 | 735 |
| 736 /* "\_x" is character class plus newline */ | |
| 737 /*FALLTHROUGH*/ | |
| 738 | |
| 739 /* | |
| 740 * Character classes. | |
| 741 */ | |
| 742 case Magic('.'): | |
| 743 case Magic('i'): | |
| 744 case Magic('I'): | |
| 745 case Magic('k'): | |
| 746 case Magic('K'): | |
| 747 case Magic('f'): | |
| 748 case Magic('F'): | |
| 749 case Magic('p'): | |
| 750 case Magic('P'): | |
| 751 case Magic('s'): | |
| 752 case Magic('S'): | |
| 753 case Magic('d'): | |
| 754 case Magic('D'): | |
| 755 case Magic('x'): | |
| 756 case Magic('X'): | |
| 757 case Magic('o'): | |
| 758 case Magic('O'): | |
| 759 case Magic('w'): | |
| 760 case Magic('W'): | |
| 761 case Magic('h'): | |
| 762 case Magic('H'): | |
| 763 case Magic('a'): | |
| 764 case Magic('A'): | |
| 765 case Magic('l'): | |
| 766 case Magic('L'): | |
| 767 case Magic('u'): | |
| 768 case Magic('U'): | |
| 769 p = vim_strchr(classchars, no_Magic(c)); | |
| 770 if (p == NULL) | |
| 771 { | |
|
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772 EMSGN("INTERNAL: Unknown character class char: %ld", c); |
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773 return FAIL; |
| 4444 | 774 } |
| 775 #ifdef FEAT_MBYTE | |
| 776 /* When '.' is followed by a composing char ignore the dot, so that | |
| 777 * the composing char is matched here. */ | |
| 778 if (enc_utf8 && c == Magic('.') && utf_iscomposing(peekchr())) | |
| 779 { | |
|
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|
780 old_regparse = regparse; |
| 4444 | 781 c = getchr(); |
| 782 goto nfa_do_multibyte; | |
| 783 } | |
| 784 #endif | |
| 785 EMIT(nfa_classcodes[p - classchars]); | |
| 786 if (extra == ADD_NL) | |
| 787 { | |
| 788 EMIT(NFA_NEWL); | |
| 789 EMIT(NFA_OR); | |
| 790 regflags |= RF_HASNL; | |
| 791 } | |
| 792 break; | |
| 793 | |
| 794 case Magic('n'): | |
| 795 if (reg_string) | |
| 796 /* In a string "\n" matches a newline character. */ | |
| 797 EMIT(NL); | |
| 798 else | |
| 799 { | |
| 800 /* In buffer text "\n" matches the end of a line. */ | |
| 801 EMIT(NFA_NEWL); | |
| 802 regflags |= RF_HASNL; | |
| 803 } | |
| 804 break; | |
| 805 | |
| 806 case Magic('('): | |
| 807 if (nfa_reg(REG_PAREN) == FAIL) | |
| 808 return FAIL; /* cascaded error */ | |
| 809 break; | |
| 810 | |
| 811 case Magic('|'): | |
| 812 case Magic('&'): | |
| 813 case Magic(')'): | |
| 814 syntax_error = TRUE; | |
| 4450 | 815 EMSGN(_(e_misplaced), no_Magic(c)); |
| 4444 | 816 return FAIL; |
| 817 | |
| 818 case Magic('='): | |
| 819 case Magic('?'): | |
| 820 case Magic('+'): | |
| 821 case Magic('@'): | |
| 822 case Magic('*'): | |
| 823 case Magic('{'): | |
| 824 /* these should follow an atom, not form an atom */ | |
| 825 syntax_error = TRUE; | |
| 4450 | 826 EMSGN(_(e_misplaced), no_Magic(c)); |
| 4444 | 827 return FAIL; |
| 828 | |
| 829 case Magic('~'): /* previous substitute pattern */ | |
|
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|
830 /* TODO: Not supported yet */ |
| 4444 | 831 return FAIL; |
| 832 | |
|
4647
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833 case Magic('1'): |
|
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834 case Magic('2'): |
|
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835 case Magic('3'): |
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836 case Magic('4'): |
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837 case Magic('5'): |
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838 case Magic('6'): |
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839 case Magic('7'): |
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840 case Magic('8'): |
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841 case Magic('9'): |
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842 EMIT(NFA_BACKREF1 + (no_Magic(c) - '1')); |
|
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843 nfa_has_backref = TRUE; |
|
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|
844 break; |
| 4444 | 845 |
| 846 case Magic('z'): | |
| 847 c = no_Magic(getchr()); | |
| 848 switch (c) | |
| 849 { | |
| 850 case 's': | |
| 851 EMIT(NFA_ZSTART); | |
| 852 break; | |
| 853 case 'e': | |
| 854 EMIT(NFA_ZEND); | |
| 855 nfa_has_zend = TRUE; | |
|
4569
f262fb02889d
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|
856 break; |
|
4686
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|
857 #ifdef FEAT_SYN_HL |
| 4444 | 858 case '1': |
| 859 case '2': | |
| 860 case '3': | |
| 861 case '4': | |
| 862 case '5': | |
| 863 case '6': | |
| 864 case '7': | |
| 865 case '8': | |
| 866 case '9': | |
|
4686
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|
867 /* \z1...\z9 */ |
|
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868 EMIT(NFA_ZREF1 + (no_Magic(c) - '1')); |
|
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869 /* No need to set nfa_has_backref, the sub-matches don't |
|
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870 * change when \z1 .. \z9 maches or not. */ |
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871 re_has_z = REX_USE; |
|
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872 break; |
| 4444 | 873 case '(': |
|
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874 /* \z( */ |
|
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875 if (nfa_reg(REG_ZPAREN) == FAIL) |
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876 return FAIL; /* cascaded error */ |
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877 re_has_z = REX_SET; |
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878 break; |
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879 #endif |
| 4444 | 880 default: |
| 881 syntax_error = TRUE; | |
| 4450 | 882 EMSGN(_("E867: (NFA) Unknown operator '\\z%c'"), |
| 4444 | 883 no_Magic(c)); |
| 884 return FAIL; | |
| 885 } | |
| 886 break; | |
| 887 | |
| 888 case Magic('%'): | |
| 889 c = no_Magic(getchr()); | |
| 890 switch (c) | |
| 891 { | |
| 892 /* () without a back reference */ | |
| 893 case '(': | |
| 894 if (nfa_reg(REG_NPAREN) == FAIL) | |
| 895 return FAIL; | |
| 896 EMIT(NFA_NOPEN); | |
| 897 break; | |
| 898 | |
| 899 case 'd': /* %d123 decimal */ | |
| 900 case 'o': /* %o123 octal */ | |
| 901 case 'x': /* %xab hex 2 */ | |
| 902 case 'u': /* %uabcd hex 4 */ | |
| 903 case 'U': /* %U1234abcd hex 8 */ | |
|
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904 { |
|
4549
849180347ac3
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|
905 int nr; |
|
4543
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|
906 |
|
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907 switch (c) |
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908 { |
|
4549
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|
909 case 'd': nr = getdecchrs(); break; |
|
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910 case 'o': nr = getoctchrs(); break; |
|
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911 case 'x': nr = gethexchrs(2); break; |
|
849180347ac3
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912 case 'u': nr = gethexchrs(4); break; |
|
849180347ac3
updated for version 7.3.1022
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4547
diff
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|
913 case 'U': nr = gethexchrs(8); break; |
|
849180347ac3
updated for version 7.3.1022
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4547
diff
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|
914 default: nr = -1; break; |
|
4543
08ac46980953
updated for version 7.3.1019
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4541
diff
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|
915 } |
|
08ac46980953
updated for version 7.3.1019
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4541
diff
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|
916 |
|
4549
849180347ac3
updated for version 7.3.1022
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4547
diff
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|
917 if (nr < 0) |
|
4543
08ac46980953
updated for version 7.3.1019
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4541
diff
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|
918 EMSG2_RET_FAIL( |
|
08ac46980953
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Bram Moolenaar <bram@vim.org>
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4541
diff
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|
919 _("E678: Invalid character after %s%%[dxouU]"), |
|
08ac46980953
updated for version 7.3.1019
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4541
diff
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|
920 reg_magic == MAGIC_ALL); |
|
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4541
diff
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|
921 /* TODO: what if a composing character follows? */ |
|
4549
849180347ac3
updated for version 7.3.1022
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4547
diff
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|
922 EMIT(nr); |
|
4543
08ac46980953
updated for version 7.3.1019
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4541
diff
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|
923 } |
| 4444 | 924 break; |
| 925 | |
| 926 /* Catch \%^ and \%$ regardless of where they appear in the | |
| 927 * pattern -- regardless of whether or not it makes sense. */ | |
| 928 case '^': | |
| 929 EMIT(NFA_BOF); | |
| 930 break; | |
| 931 | |
| 932 case '$': | |
| 933 EMIT(NFA_EOF); | |
| 934 break; | |
| 935 | |
| 936 case '#': | |
|
4583
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updated for version 7.3.1039
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|
937 EMIT(NFA_CURSOR); |
| 4444 | 938 break; |
| 939 | |
| 940 case 'V': | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
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4569
diff
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|
941 /* TODO: not supported yet */ |
| 4444 | 942 return FAIL; |
| 943 break; | |
| 944 | |
| 945 case '[': | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
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4569
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|
946 /* TODO: \%[abc] not supported yet */ |
|
b2a8e3a66f8c
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diff
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|
947 return FAIL; |
|
b2a8e3a66f8c
updated for version 7.3.1033
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4569
diff
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|
948 |
| 4444 | 949 default: |
|
4583
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diff
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|
950 { |
|
4655
779ca415f8e1
updated for version 7.3.1075
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parents:
4651
diff
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|
951 int n = 0; |
|
4583
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|
952 int cmp = c; |
|
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|
953 |
|
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|
954 if (c == '<' || c == '>') |
|
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|
955 c = getchr(); |
|
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|
956 while (VIM_ISDIGIT(c)) |
|
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|
957 { |
|
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|
958 n = n * 10 + (c - '0'); |
|
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|
959 c = getchr(); |
|
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|
960 } |
|
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|
961 if (c == 'l' || c == 'c' || c == 'v') |
|
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|
962 { |
|
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|
963 EMIT(n); |
|
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|
964 if (c == 'l') |
|
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|
965 EMIT(cmp == '<' ? NFA_LNUM_LT : |
|
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|
966 cmp == '>' ? NFA_LNUM_GT : NFA_LNUM); |
|
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|
967 else if (c == 'c') |
|
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|
968 EMIT(cmp == '<' ? NFA_COL_LT : |
|
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|
969 cmp == '>' ? NFA_COL_GT : NFA_COL); |
|
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|
970 else |
|
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updated for version 7.3.1039
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|
971 EMIT(cmp == '<' ? NFA_VCOL_LT : |
|
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|
972 cmp == '>' ? NFA_VCOL_GT : NFA_VCOL); |
|
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|
973 break; |
|
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|
974 } |
|
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|
975 else if (c == '\'') |
|
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|
976 /* TODO: \%'m not supported yet */ |
|
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|
977 return FAIL; |
|
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|
978 } |
|
4571
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|
979 syntax_error = TRUE; |
|
b2a8e3a66f8c
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|
980 EMSGN(_("E867: (NFA) Unknown operator '\\%%%c'"), |
|
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|
981 no_Magic(c)); |
| 4444 | 982 return FAIL; |
| 983 } | |
| 984 break; | |
| 985 | |
| 986 case Magic('['): | |
|
4517
9a2183bd8295
updated for version 7.3.1006
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diff
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|
987 collection: |
| 4444 | 988 /* |
| 989 * Glue is emitted between several atoms from the []. | |
| 990 * It is either NFA_OR, or NFA_CONCAT. | |
| 991 * | |
| 992 * [abc] expands to 'a b NFA_OR c NFA_OR' (in postfix notation) | |
| 993 * [^abc] expands to 'a NFA_NOT b NFA_NOT NFA_CONCAT c NFA_NOT | |
| 994 * NFA_CONCAT NFA_END_NEG_RANGE NFA_CONCAT' (in postfix | |
| 995 * notation) | |
| 996 * | |
| 997 */ | |
| 998 | |
| 999 | |
| 1000 /* Emit negation atoms, if needed. | |
| 1001 * The CONCAT below merges the NOT with the previous node. */ | |
| 1002 #define TRY_NEG() \ | |
| 1003 if (negated == TRUE) \ | |
| 1004 { \ | |
| 1005 EMIT(NFA_NOT); \ | |
| 1006 } | |
| 1007 | |
| 1008 /* Emit glue between important nodes : CONCAT or OR. */ | |
| 1009 #define EMIT_GLUE() \ | |
| 1010 if (first == FALSE) \ | |
| 1011 EMIT(glue); \ | |
| 1012 else \ | |
| 1013 first = FALSE; | |
| 1014 | |
| 1015 p = regparse; | |
| 1016 endp = skip_anyof(p); | |
| 1017 if (*endp == ']') | |
| 1018 { | |
| 1019 /* | |
| 1020 * Try to reverse engineer character classes. For example, | |
| 1021 * recognize that [0-9] stands for \d and [A-Za-z_] with \h, | |
| 1022 * and perform the necessary substitutions in the NFA. | |
| 1023 */ | |
| 1024 result = nfa_recognize_char_class(regparse, endp, | |
| 1025 extra == ADD_NL); | |
| 1026 if (result != FAIL) | |
| 1027 { | |
| 1028 if (result >= NFA_DIGIT && result <= NFA_NUPPER) | |
| 1029 EMIT(result); | |
| 1030 else /* must be char class + newline */ | |
| 1031 { | |
| 1032 EMIT(result - ADD_NL); | |
| 1033 EMIT(NFA_NEWL); | |
| 1034 EMIT(NFA_OR); | |
| 1035 } | |
| 1036 regparse = endp; | |
|
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|
1037 mb_ptr_adv(regparse); |
| 4444 | 1038 return OK; |
| 1039 } | |
| 1040 /* | |
| 1041 * Failed to recognize a character class. Use the simple | |
| 1042 * version that turns [abc] into 'a' OR 'b' OR 'c' | |
| 1043 */ | |
| 1044 startc = endc = oldstartc = -1; | |
| 1045 first = TRUE; /* Emitting first atom in this sequence? */ | |
| 1046 negated = FALSE; | |
| 1047 glue = NFA_OR; | |
| 1048 if (*regparse == '^') /* negated range */ | |
| 1049 { | |
| 1050 negated = TRUE; | |
| 1051 glue = NFA_CONCAT; | |
|
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|
1052 mb_ptr_adv(regparse); |
| 4444 | 1053 } |
| 1054 if (*regparse == '-') | |
| 1055 { | |
| 1056 startc = '-'; | |
| 1057 EMIT(startc); | |
| 1058 TRY_NEG(); | |
| 1059 EMIT_GLUE(); | |
|
4573
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|
1060 mb_ptr_adv(regparse); |
| 4444 | 1061 } |
| 1062 /* Emit the OR branches for each character in the [] */ | |
| 1063 emit_range = FALSE; | |
| 1064 while (regparse < endp) | |
| 1065 { | |
| 1066 oldstartc = startc; | |
| 1067 startc = -1; | |
| 1068 got_coll_char = FALSE; | |
| 1069 if (*regparse == '[') | |
| 1070 { | |
| 1071 /* Check for [: :], [= =], [. .] */ | |
| 1072 equiclass = collclass = 0; | |
| 1073 charclass = get_char_class(®parse); | |
| 1074 if (charclass == CLASS_NONE) | |
| 1075 { | |
| 1076 equiclass = get_equi_class(®parse); | |
| 1077 if (equiclass == 0) | |
| 1078 collclass = get_coll_element(®parse); | |
| 1079 } | |
| 1080 | |
| 1081 /* Character class like [:alpha:] */ | |
| 1082 if (charclass != CLASS_NONE) | |
| 1083 { | |
| 1084 switch (charclass) | |
| 1085 { | |
| 1086 case CLASS_ALNUM: | |
| 1087 EMIT(NFA_CLASS_ALNUM); | |
| 1088 break; | |
| 1089 case CLASS_ALPHA: | |
| 1090 EMIT(NFA_CLASS_ALPHA); | |
| 1091 break; | |
| 1092 case CLASS_BLANK: | |
| 1093 EMIT(NFA_CLASS_BLANK); | |
| 1094 break; | |
| 1095 case CLASS_CNTRL: | |
| 1096 EMIT(NFA_CLASS_CNTRL); | |
| 1097 break; | |
| 1098 case CLASS_DIGIT: | |
| 1099 EMIT(NFA_CLASS_DIGIT); | |
| 1100 break; | |
| 1101 case CLASS_GRAPH: | |
| 1102 EMIT(NFA_CLASS_GRAPH); | |
| 1103 break; | |
| 1104 case CLASS_LOWER: | |
| 1105 EMIT(NFA_CLASS_LOWER); | |
| 1106 break; | |
| 1107 case CLASS_PRINT: | |
| 1108 EMIT(NFA_CLASS_PRINT); | |
| 1109 break; | |
| 1110 case CLASS_PUNCT: | |
| 1111 EMIT(NFA_CLASS_PUNCT); | |
| 1112 break; | |
| 1113 case CLASS_SPACE: | |
| 1114 EMIT(NFA_CLASS_SPACE); | |
| 1115 break; | |
| 1116 case CLASS_UPPER: | |
| 1117 EMIT(NFA_CLASS_UPPER); | |
| 1118 break; | |
| 1119 case CLASS_XDIGIT: | |
| 1120 EMIT(NFA_CLASS_XDIGIT); | |
| 1121 break; | |
| 1122 case CLASS_TAB: | |
| 1123 EMIT(NFA_CLASS_TAB); | |
| 1124 break; | |
| 1125 case CLASS_RETURN: | |
| 1126 EMIT(NFA_CLASS_RETURN); | |
| 1127 break; | |
| 1128 case CLASS_BACKSPACE: | |
| 1129 EMIT(NFA_CLASS_BACKSPACE); | |
| 1130 break; | |
| 1131 case CLASS_ESCAPE: | |
| 1132 EMIT(NFA_CLASS_ESCAPE); | |
| 1133 break; | |
| 1134 } | |
| 1135 TRY_NEG(); | |
| 1136 EMIT_GLUE(); | |
| 1137 continue; | |
| 1138 } | |
| 1139 /* Try equivalence class [=a=] and the like */ | |
| 1140 if (equiclass != 0) | |
| 1141 { | |
| 1142 result = nfa_emit_equi_class(equiclass, negated); | |
| 1143 if (result == FAIL) | |
| 1144 { | |
| 1145 /* should never happen */ | |
| 1146 EMSG_RET_FAIL(_("E868: Error building NFA with equivalence class!")); | |
| 1147 } | |
| 1148 EMIT_GLUE(); | |
| 1149 continue; | |
| 1150 } | |
| 1151 /* Try collating class like [. .] */ | |
| 1152 if (collclass != 0) | |
| 1153 { | |
| 1154 startc = collclass; /* allow [.a.]-x as a range */ | |
| 1155 /* Will emit the proper atom at the end of the | |
| 1156 * while loop. */ | |
| 1157 } | |
| 1158 } | |
|
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|
1159 /* Try a range like 'a-x' or '\t-z'. Also allows '-' as a |
|
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|
1160 * start character. */ |
|
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|
1161 if (*regparse == '-' && oldstartc != -1) |
| 4444 | 1162 { |
| 1163 emit_range = TRUE; | |
| 1164 startc = oldstartc; | |
|
4573
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|
1165 mb_ptr_adv(regparse); |
| 4444 | 1166 continue; /* reading the end of the range */ |
| 1167 } | |
| 1168 | |
| 1169 /* Now handle simple and escaped characters. | |
| 1170 * Only "\]", "\^", "\]" and "\\" are special in Vi. Vim | |
| 1171 * accepts "\t", "\e", etc., but only when the 'l' flag in | |
| 1172 * 'cpoptions' is not included. | |
| 1173 * Posix doesn't recognize backslash at all. | |
| 1174 */ | |
| 1175 if (*regparse == '\\' | |
| 1176 && !cpo_bsl | |
| 1177 && regparse + 1 <= endp | |
| 1178 && (vim_strchr(REGEXP_INRANGE, regparse[1]) != NULL | |
| 1179 || (!cpo_lit | |
| 1180 && vim_strchr(REGEXP_ABBR, regparse[1]) | |
| 1181 != NULL) | |
| 1182 ) | |
| 1183 ) | |
| 1184 { | |
|
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|
1185 mb_ptr_adv(regparse); |
| 4444 | 1186 |
|
4507
9dbbddb2ed10
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diff
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|
1187 if (*regparse == 'n') |
| 4444 | 1188 startc = reg_string ? NL : NFA_NEWL; |
| 1189 else | |
| 1190 if (*regparse == 'd' | |
| 1191 || *regparse == 'o' | |
| 1192 || *regparse == 'x' | |
| 1193 || *regparse == 'u' | |
| 1194 || *regparse == 'U' | |
| 1195 ) | |
| 1196 { | |
| 1197 /* TODO(RE) This needs more testing */ | |
| 1198 startc = coll_get_char(); | |
| 1199 got_coll_char = TRUE; | |
|
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|
1200 mb_ptr_back(old_regparse, regparse); |
| 4444 | 1201 } |
| 1202 else | |
| 1203 { | |
| 1204 /* \r,\t,\e,\b */ | |
| 1205 startc = backslash_trans(*regparse); | |
| 1206 } | |
| 1207 } | |
| 1208 | |
| 1209 /* Normal printable char */ | |
| 1210 if (startc == -1) | |
|
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|
1211 startc = PTR2CHAR(regparse); |
| 4444 | 1212 |
| 1213 /* Previous char was '-', so this char is end of range. */ | |
| 1214 if (emit_range) | |
| 1215 { | |
|
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|
1216 endc = startc; |
|
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|
1217 startc = oldstartc; |
| 4444 | 1218 if (startc > endc) |
| 1219 EMSG_RET_FAIL(_(e_invrange)); | |
| 1220 #ifdef FEAT_MBYTE | |
| 1221 if (has_mbyte && ((*mb_char2len)(startc) > 1 | |
| 1222 || (*mb_char2len)(endc) > 1)) | |
| 1223 { | |
| 1224 if (endc > startc + 256) | |
| 1225 EMSG_RET_FAIL(_(e_invrange)); | |
| 1226 /* Emit the range. "startc" was already emitted, so | |
| 1227 * skip it. */ | |
| 1228 for (c = startc + 1; c <= endc; c++) | |
| 1229 { | |
|
4527
55bcaa1d2749
updated for version 7.3.1011
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diff
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|
1230 EMIT(c); |
| 4444 | 1231 TRY_NEG(); |
| 1232 EMIT_GLUE(); | |
| 1233 } | |
| 1234 } | |
| 1235 else | |
| 1236 #endif | |
| 1237 { | |
| 1238 #ifdef EBCDIC | |
| 1239 int alpha_only = FALSE; | |
| 1240 | |
| 1241 /* for alphabetical range skip the gaps | |
| 1242 * 'i'-'j', 'r'-'s', 'I'-'J' and 'R'-'S'. */ | |
| 1243 if (isalpha(startc) && isalpha(endc)) | |
| 1244 alpha_only = TRUE; | |
| 1245 #endif | |
| 1246 /* Emit the range. "startc" was already emitted, so | |
| 1247 * skip it. */ | |
| 1248 for (c = startc + 1; c <= endc; c++) | |
| 1249 #ifdef EBCDIC | |
| 1250 if (!alpha_only || isalpha(startc)) | |
| 1251 #endif | |
| 1252 { | |
| 1253 EMIT(c); | |
| 1254 TRY_NEG(); | |
| 1255 EMIT_GLUE(); | |
| 1256 } | |
| 1257 } | |
|
4677
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updated for version 7.3.1086
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4675
diff
changeset
|
1258 emit_range = FALSE; |
|
c1622ff9ed8d
updated for version 7.3.1086
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parents:
4675
diff
changeset
|
1259 startc = -1; |
| 4444 | 1260 } |
| 1261 else | |
| 1262 { | |
| 1263 /* | |
| 1264 * This char (startc) is not part of a range. Just | |
| 1265 * emit it. | |
| 1266 * | |
| 1267 * Normally, simply emit startc. But if we get char | |
| 1268 * code=0 from a collating char, then replace it with | |
| 1269 * 0x0a. | |
| 1270 * | |
| 1271 * This is needed to completely mimic the behaviour of | |
| 1272 * the backtracking engine. | |
| 1273 */ | |
| 1274 if (got_coll_char == TRUE && startc == 0) | |
| 1275 EMIT(0x0a); | |
| 1276 else | |
|
4527
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diff
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|
1277 EMIT(startc); |
| 4444 | 1278 TRY_NEG(); |
| 1279 EMIT_GLUE(); | |
| 1280 } | |
| 1281 | |
|
4573
37e444aeb33b
updated for version 7.3.1034
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4571
diff
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|
1282 mb_ptr_adv(regparse); |
| 4444 | 1283 } /* while (p < endp) */ |
| 1284 | |
|
4573
37e444aeb33b
updated for version 7.3.1034
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parents:
4571
diff
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|
1285 mb_ptr_back(old_regparse, regparse); |
| 4444 | 1286 if (*regparse == '-') /* if last, '-' is just a char */ |
| 1287 { | |
| 1288 EMIT('-'); | |
| 1289 TRY_NEG(); | |
| 1290 EMIT_GLUE(); | |
| 1291 } | |
|
4573
37e444aeb33b
updated for version 7.3.1034
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4571
diff
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|
1292 mb_ptr_adv(regparse); |
| 4444 | 1293 |
| 1294 /* skip the trailing ] */ | |
| 1295 regparse = endp; | |
|
4573
37e444aeb33b
updated for version 7.3.1034
Bram Moolenaar <bram@vim.org>
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4571
diff
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|
1296 mb_ptr_adv(regparse); |
| 4444 | 1297 if (negated == TRUE) |
| 1298 { | |
| 1299 /* Mark end of negated char range */ | |
| 1300 EMIT(NFA_END_NEG_RANGE); | |
| 1301 EMIT(NFA_CONCAT); | |
| 1302 } | |
|
4615
5679b8ddd8cc
updated for version 7.3.1055
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parents:
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diff
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|
1303 |
|
5679b8ddd8cc
updated for version 7.3.1055
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4583
diff
changeset
|
1304 /* \_[] also matches \n but it's not negated */ |
|
5679b8ddd8cc
updated for version 7.3.1055
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4583
diff
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|
1305 if (extra == ADD_NL) |
|
5679b8ddd8cc
updated for version 7.3.1055
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4583
diff
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|
1306 { |
|
5679b8ddd8cc
updated for version 7.3.1055
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parents:
4583
diff
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|
1307 EMIT(reg_string ? NL : NFA_NEWL); |
|
5679b8ddd8cc
updated for version 7.3.1055
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4583
diff
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|
1308 EMIT(NFA_OR); |
|
5679b8ddd8cc
updated for version 7.3.1055
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diff
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|
1309 } |
|
5679b8ddd8cc
updated for version 7.3.1055
Bram Moolenaar <bram@vim.org>
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diff
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|
1310 |
| 4444 | 1311 return OK; |
|
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
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4527
diff
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|
1312 } /* if exists closing ] */ |
|
432a6b8c7d93
updated for version 7.3.1012
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4527
diff
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|
1313 |
|
432a6b8c7d93
updated for version 7.3.1012
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4527
diff
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|
1314 if (reg_strict) |
| 4444 | 1315 { |
| 1316 syntax_error = TRUE; | |
| 1317 EMSG_RET_FAIL(_(e_missingbracket)); | |
| 1318 } | |
|
4529
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updated for version 7.3.1012
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parents:
4527
diff
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|
1319 /* FALLTHROUGH */ |
|
432a6b8c7d93
updated for version 7.3.1012
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4527
diff
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|
1320 |
| 4444 | 1321 default: |
| 1322 { | |
| 1323 #ifdef FEAT_MBYTE | |
| 1324 int plen; | |
| 1325 | |
| 1326 nfa_do_multibyte: | |
|
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
1327 /* plen is length of current char with composing chars */ |
|
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
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4541
diff
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|
1328 if (enc_utf8 && ((*mb_char2len)(c) |
|
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
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|
1329 != (plen = (*mb_ptr2len)(old_regparse)) |
|
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
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|
1330 || utf_iscomposing(c))) |
| 4444 | 1331 { |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
1332 int i = 0; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
1333 |
|
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
1334 /* A base character plus composing characters, or just one |
|
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
1335 * or more composing characters. |
|
4527
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updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
1336 * This requires creating a separate atom as if enclosing |
|
55bcaa1d2749
updated for version 7.3.1011
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parents:
4525
diff
changeset
|
1337 * the characters in (), where NFA_COMPOSING is the ( and |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
1338 * NFA_END_COMPOSING is the ). Note that right now we are |
| 4444 | 1339 * building the postfix form, not the NFA itself; |
| 1340 * a composing char could be: a, b, c, NFA_COMPOSING | |
|
4527
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updated for version 7.3.1011
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parents:
4525
diff
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|
1341 * where 'b' and 'c' are chars with codes > 256. */ |
|
55bcaa1d2749
updated for version 7.3.1011
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parents:
4525
diff
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|
1342 for (;;) |
|
55bcaa1d2749
updated for version 7.3.1011
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diff
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|
1343 { |
|
55bcaa1d2749
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diff
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|
1344 EMIT(c); |
|
55bcaa1d2749
updated for version 7.3.1011
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4525
diff
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|
1345 if (i > 0) |
|
55bcaa1d2749
updated for version 7.3.1011
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parents:
4525
diff
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|
1346 EMIT(NFA_CONCAT); |
|
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
1347 if ((i += utf_char2len(c)) >= plen) |
|
4527
55bcaa1d2749
updated for version 7.3.1011
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parents:
4525
diff
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|
1348 break; |
|
55bcaa1d2749
updated for version 7.3.1011
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parents:
4525
diff
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|
1349 c = utf_ptr2char(old_regparse + i); |
|
55bcaa1d2749
updated for version 7.3.1011
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4525
diff
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|
1350 } |
|
55bcaa1d2749
updated for version 7.3.1011
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parents:
4525
diff
changeset
|
1351 EMIT(NFA_COMPOSING); |
| 4444 | 1352 regparse = old_regparse + plen; |
| 1353 } | |
| 1354 else | |
| 1355 #endif | |
| 1356 { | |
| 1357 c = no_Magic(c); | |
| 1358 EMIT(c); | |
| 1359 } | |
| 1360 return OK; | |
| 1361 } | |
| 1362 } | |
| 1363 | |
| 1364 #undef TRY_NEG | |
| 1365 #undef EMIT_GLUE | |
| 1366 | |
| 1367 return OK; | |
| 1368 } | |
| 1369 | |
| 1370 /* | |
| 1371 * Parse something followed by possible [*+=]. | |
| 1372 * | |
| 1373 * A piece is an atom, possibly followed by a multi, an indication of how many | |
| 1374 * times the atom can be matched. Example: "a*" matches any sequence of "a" | |
| 1375 * characters: "", "a", "aa", etc. | |
| 1376 * | |
| 1377 * piece ::= atom | |
| 1378 * or atom multi | |
| 1379 */ | |
| 1380 static int | |
| 1381 nfa_regpiece() | |
| 1382 { | |
| 1383 int i; | |
| 1384 int op; | |
| 1385 int ret; | |
| 1386 long minval, maxval; | |
| 1387 int greedy = TRUE; /* Braces are prefixed with '-' ? */ | |
|
4679
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updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
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4677
diff
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|
1388 parse_state_T old_state; |
|
4d92b873acef
updated for version 7.3.1087
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4677
diff
changeset
|
1389 parse_state_T new_state; |
| 4444 | 1390 int c2; |
|
4651
f10f63aaec5c
updated for version 7.3.1073
Bram Moolenaar <bram@vim.org>
parents:
4649
diff
changeset
|
1391 int old_post_pos; |
|
f10f63aaec5c
updated for version 7.3.1073
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parents:
4649
diff
changeset
|
1392 int my_post_start; |
| 4444 | 1393 int quest; |
| 1394 | |
|
4679
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
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4677
diff
changeset
|
1395 /* Save the current parse state, so that we can use it if <atom>{m,n} is |
|
4d92b873acef
updated for version 7.3.1087
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parents:
4677
diff
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|
1396 * next. */ |
|
4d92b873acef
updated for version 7.3.1087
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parents:
4677
diff
changeset
|
1397 save_parse_state(&old_state); |
|
4d92b873acef
updated for version 7.3.1087
Bram Moolenaar <bram@vim.org>
parents:
4677
diff
changeset
|
1398 |
| 4444 | 1399 /* store current pos in the postfix form, for \{m,n} involving 0s */ |
|
4651
f10f63aaec5c
updated for version 7.3.1073
Bram Moolenaar <bram@vim.org>
parents:
4649
diff
changeset
|
1400 my_post_start = (int)(post_ptr - post_start); |
| 4444 | 1401 |
| 1402 ret = nfa_regatom(); | |
| 1403 if (ret == FAIL) | |
| 1404 return FAIL; /* cascaded error */ | |
| 1405 | |
| 1406 op = peekchr(); | |
| 1407 if (re_multi_type(op) == NOT_MULTI) | |
| 1408 return OK; | |
| 1409 | |
| 1410 skipchr(); | |
| 1411 switch (op) | |
| 1412 { | |
| 1413 case Magic('*'): | |
| 1414 EMIT(NFA_STAR); | |
| 1415 break; | |
| 1416 | |
| 1417 case Magic('+'): | |
| 1418 /* | |
| 1419 * Trick: Normally, (a*)\+ would match the whole input "aaa". The | |
| 1420 * first and only submatch would be "aaa". But the backtracking | |
| 1421 * engine interprets the plus as "try matching one more time", and | |
| 1422 * a* matches a second time at the end of the input, the empty | |
| 1423 * string. | |
| 1424 * The submatch will the empty string. | |
| 1425 * | |
|
4673
05d57d7c2d55
updated for version 7.3.1084
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parents:
4671
diff
changeset
|
1426 * In order to be consistent with the old engine, we replace |
|
05d57d7c2d55
updated for version 7.3.1084
Bram Moolenaar <bram@vim.org>
parents:
4671
diff
changeset
|
1427 * <atom>+ with <atom><atom>* |
| 4444 | 1428 */ |
|
4679
4d92b873acef
updated for version 7.3.1087
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4677
diff
changeset
|
1429 restore_parse_state(&old_state); |
| 4444 | 1430 curchr = -1; |
| 1431 if (nfa_regatom() == FAIL) | |
| 1432 return FAIL; | |
| 1433 EMIT(NFA_STAR); | |
| 1434 EMIT(NFA_CONCAT); | |
| 1435 skipchr(); /* skip the \+ */ | |
| 1436 break; | |
| 1437 | |
| 1438 case Magic('@'): | |
|
4682
2f51ee8825db
updated for version 7.3.1088
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4679
diff
changeset
|
1439 c2 = getdecchrs(); |
| 4444 | 1440 op = no_Magic(getchr()); |
|
4682
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updated for version 7.3.1088
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4679
diff
changeset
|
1441 i = 0; |
| 4444 | 1442 switch(op) |
| 1443 { | |
| 1444 case '=': | |
|
4682
2f51ee8825db
updated for version 7.3.1088
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diff
changeset
|
1445 /* \@= */ |
|
2f51ee8825db
updated for version 7.3.1088
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4679
diff
changeset
|
1446 i = NFA_PREV_ATOM_NO_WIDTH; |
| 4444 | 1447 break; |
|
4661
0dce3d812e7a
updated for version 7.3.1078
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parents:
4657
diff
changeset
|
1448 case '!': |
|
4682
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updated for version 7.3.1088
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diff
changeset
|
1449 /* \@! */ |
|
2f51ee8825db
updated for version 7.3.1088
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diff
changeset
|
1450 i = NFA_PREV_ATOM_NO_WIDTH_NEG; |
|
4661
0dce3d812e7a
updated for version 7.3.1078
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parents:
4657
diff
changeset
|
1451 break; |
| 4444 | 1452 case '<': |
|
4682
2f51ee8825db
updated for version 7.3.1088
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diff
changeset
|
1453 op = no_Magic(getchr()); |
|
2f51ee8825db
updated for version 7.3.1088
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diff
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|
1454 if (op == '=') |
|
2f51ee8825db
updated for version 7.3.1088
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parents:
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diff
changeset
|
1455 /* \@<= */ |
|
2f51ee8825db
updated for version 7.3.1088
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diff
changeset
|
1456 i = NFA_PREV_ATOM_JUST_BEFORE; |
|
2f51ee8825db
updated for version 7.3.1088
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parents:
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diff
changeset
|
1457 else if (op == '!') |
|
2f51ee8825db
updated for version 7.3.1088
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parents:
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diff
changeset
|
1458 /* \@<! */ |
|
2f51ee8825db
updated for version 7.3.1088
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diff
changeset
|
1459 i = NFA_PREV_ATOM_JUST_BEFORE_NEG; |
|
2f51ee8825db
updated for version 7.3.1088
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diff
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|
1460 break; |
| 4444 | 1461 case '>': |
|
4682
2f51ee8825db
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diff
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|
1462 /* \@> Not supported yet */ |
|
2f51ee8825db
updated for version 7.3.1088
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diff
changeset
|
1463 /* i = NFA_PREV_ATOM_LIKE_PATTERN; */ |
| 4444 | 1464 return FAIL; |
| 1465 } | |
|
4682
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diff
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|
1466 if (i == 0) |
|
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diff
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|
1467 { |
|
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diff
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|
1468 syntax_error = TRUE; |
|
2f51ee8825db
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diff
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|
1469 EMSGN(_("E869: (NFA) Unknown operator '\\@%c'"), op); |
|
2f51ee8825db
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diff
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|
1470 return FAIL; |
|
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|
1471 } |
|
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|
1472 EMIT(i); |
|
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diff
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|
1473 if (i == NFA_PREV_ATOM_JUST_BEFORE |
|
2f51ee8825db
updated for version 7.3.1088
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diff
changeset
|
1474 || i == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
|
2f51ee8825db
updated for version 7.3.1088
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parents:
4679
diff
changeset
|
1475 EMIT(c2); |
| 4444 | 1476 break; |
| 1477 | |
| 1478 case Magic('?'): | |
| 1479 case Magic('='): | |
| 1480 EMIT(NFA_QUEST); | |
| 1481 break; | |
| 1482 | |
| 1483 case Magic('{'): | |
| 1484 /* a{2,5} will expand to 'aaa?a?a?' | |
| 1485 * a{-1,3} will expand to 'aa??a??', where ?? is the nongreedy | |
| 1486 * version of '?' | |
| 1487 * \v(ab){2,3} will expand to '(ab)(ab)(ab)?', where all the | |
| 1488 * parenthesis have the same id | |
| 1489 */ | |
| 1490 | |
| 1491 greedy = TRUE; | |
| 1492 c2 = peekchr(); | |
| 1493 if (c2 == '-' || c2 == Magic('-')) | |
| 1494 { | |
| 1495 skipchr(); | |
| 1496 greedy = FALSE; | |
| 1497 } | |
| 1498 if (!read_limits(&minval, &maxval)) | |
| 1499 { | |
| 1500 syntax_error = TRUE; | |
| 1501 EMSG_RET_FAIL(_("E870: (NFA regexp) Error reading repetition limits")); | |
| 1502 } | |
| 1503 /* <atom>{0,inf}, <atom>{0,} and <atom>{} are equivalent to | |
| 1504 * <atom>* */ | |
|
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|
1505 if (minval == 0 && maxval == MAX_LIMIT) |
| 4444 | 1506 { |
|
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|
1507 if (greedy) |
|
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|
1508 /* \{}, \{0,} */ |
|
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|
1509 EMIT(NFA_STAR); |
|
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|
1510 else |
|
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|
1511 /* \{-}, \{-0,} */ |
|
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|
1512 EMIT(NFA_STAR_NONGREEDY); |
| 4444 | 1513 break; |
| 1514 } | |
| 1515 | |
| 1516 /* Special case: x{0} or x{-0} */ | |
| 1517 if (maxval == 0) | |
| 1518 { | |
| 1519 /* Ignore result of previous call to nfa_regatom() */ | |
|
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|
1520 post_ptr = post_start + my_post_start; |
| 4444 | 1521 /* NFA_SKIP_CHAR has 0-length and works everywhere */ |
| 1522 EMIT(NFA_SKIP_CHAR); | |
| 1523 return OK; | |
| 1524 } | |
| 1525 | |
| 1526 /* Ignore previous call to nfa_regatom() */ | |
|
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|
1527 post_ptr = post_start + my_post_start; |
|
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|
1528 /* Save parse state after the repeated atom and the \{} */ |
|
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|
1529 save_parse_state(&new_state); |
| 4444 | 1530 |
| 1531 quest = (greedy == TRUE? NFA_QUEST : NFA_QUEST_NONGREEDY); | |
| 1532 for (i = 0; i < maxval; i++) | |
| 1533 { | |
| 1534 /* Goto beginning of the repeated atom */ | |
|
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|
1535 restore_parse_state(&old_state); |
|
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|
1536 old_post_pos = (int)(post_ptr - post_start); |
| 4444 | 1537 if (nfa_regatom() == FAIL) |
| 1538 return FAIL; | |
| 1539 /* after "minval" times, atoms are optional */ | |
| 1540 if (i + 1 > minval) | |
|
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|
1541 { |
|
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|
1542 if (maxval == MAX_LIMIT) |
|
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1543 { |
|
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|
1544 if (greedy) |
|
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|
1545 EMIT(NFA_STAR); |
|
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1546 else |
|
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|
1547 EMIT(NFA_STAR_NONGREEDY); |
|
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|
1548 } |
|
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1549 else |
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|
1550 EMIT(quest); |
|
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|
1551 } |
|
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1552 if (old_post_pos != my_post_start) |
| 4444 | 1553 EMIT(NFA_CONCAT); |
|
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|
1554 if (i + 1 > minval && maxval == MAX_LIMIT) |
|
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|
1555 break; |
| 4444 | 1556 } |
| 1557 | |
| 1558 /* Go to just after the repeated atom and the \{} */ | |
|
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|
1559 restore_parse_state(&new_state); |
| 4444 | 1560 curchr = -1; |
| 1561 | |
| 1562 break; | |
| 1563 | |
| 1564 | |
| 1565 default: | |
| 1566 break; | |
| 1567 } /* end switch */ | |
| 1568 | |
| 1569 if (re_multi_type(peekchr()) != NOT_MULTI) | |
| 1570 { | |
| 1571 /* Can't have a multi follow a multi. */ | |
| 1572 syntax_error = TRUE; | |
| 1573 EMSG_RET_FAIL(_("E871: (NFA regexp) Can't have a multi follow a multi !")); | |
| 1574 } | |
| 1575 | |
| 1576 return OK; | |
| 1577 } | |
| 1578 | |
| 1579 /* | |
| 1580 * Parse one or more pieces, concatenated. It matches a match for the | |
| 1581 * first piece, followed by a match for the second piece, etc. Example: | |
| 1582 * "f[0-9]b", first matches "f", then a digit and then "b". | |
| 1583 * | |
| 1584 * concat ::= piece | |
| 1585 * or piece piece | |
| 1586 * or piece piece piece | |
| 1587 * etc. | |
| 1588 */ | |
| 1589 static int | |
| 1590 nfa_regconcat() | |
| 1591 { | |
| 1592 int cont = TRUE; | |
| 1593 int first = TRUE; | |
| 1594 | |
| 1595 while (cont) | |
| 1596 { | |
| 1597 switch (peekchr()) | |
| 1598 { | |
| 1599 case NUL: | |
| 1600 case Magic('|'): | |
| 1601 case Magic('&'): | |
| 1602 case Magic(')'): | |
| 1603 cont = FALSE; | |
| 1604 break; | |
| 1605 | |
| 1606 case Magic('Z'): | |
| 1607 #ifdef FEAT_MBYTE | |
| 1608 regflags |= RF_ICOMBINE; | |
| 1609 #endif | |
| 1610 skipchr_keepstart(); | |
| 1611 break; | |
| 1612 case Magic('c'): | |
| 1613 regflags |= RF_ICASE; | |
| 1614 skipchr_keepstart(); | |
| 1615 break; | |
| 1616 case Magic('C'): | |
| 1617 regflags |= RF_NOICASE; | |
| 1618 skipchr_keepstart(); | |
| 1619 break; | |
| 1620 case Magic('v'): | |
| 1621 reg_magic = MAGIC_ALL; | |
| 1622 skipchr_keepstart(); | |
| 1623 curchr = -1; | |
| 1624 break; | |
| 1625 case Magic('m'): | |
| 1626 reg_magic = MAGIC_ON; | |
| 1627 skipchr_keepstart(); | |
| 1628 curchr = -1; | |
| 1629 break; | |
| 1630 case Magic('M'): | |
| 1631 reg_magic = MAGIC_OFF; | |
| 1632 skipchr_keepstart(); | |
| 1633 curchr = -1; | |
| 1634 break; | |
| 1635 case Magic('V'): | |
| 1636 reg_magic = MAGIC_NONE; | |
| 1637 skipchr_keepstart(); | |
| 1638 curchr = -1; | |
| 1639 break; | |
| 1640 | |
| 1641 default: | |
| 1642 if (nfa_regpiece() == FAIL) | |
| 1643 return FAIL; | |
| 1644 if (first == FALSE) | |
| 1645 EMIT(NFA_CONCAT); | |
| 1646 else | |
| 1647 first = FALSE; | |
| 1648 break; | |
| 1649 } | |
| 1650 } | |
| 1651 | |
| 1652 return OK; | |
| 1653 } | |
| 1654 | |
| 1655 /* | |
| 1656 * Parse a branch, one or more concats, separated by "\&". It matches the | |
| 1657 * last concat, but only if all the preceding concats also match at the same | |
| 1658 * position. Examples: | |
| 1659 * "foobeep\&..." matches "foo" in "foobeep". | |
| 1660 * ".*Peter\&.*Bob" matches in a line containing both "Peter" and "Bob" | |
| 1661 * | |
| 1662 * branch ::= concat | |
| 1663 * or concat \& concat | |
| 1664 * or concat \& concat \& concat | |
| 1665 * etc. | |
| 1666 */ | |
| 1667 static int | |
| 1668 nfa_regbranch() | |
| 1669 { | |
| 1670 int ch; | |
|
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1671 int old_post_pos; |
|
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|
1672 |
|
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|
1673 old_post_pos = (int)(post_ptr - post_start); |
| 4444 | 1674 |
| 1675 /* First branch, possibly the only one */ | |
| 1676 if (nfa_regconcat() == FAIL) | |
| 1677 return FAIL; | |
| 1678 | |
| 1679 ch = peekchr(); | |
| 1680 /* Try next concats */ | |
| 1681 while (ch == Magic('&')) | |
| 1682 { | |
| 1683 skipchr(); | |
| 1684 EMIT(NFA_NOPEN); | |
| 1685 EMIT(NFA_PREV_ATOM_NO_WIDTH); | |
|
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|
1686 old_post_pos = (int)(post_ptr - post_start); |
| 4444 | 1687 if (nfa_regconcat() == FAIL) |
| 1688 return FAIL; | |
| 1689 /* if concat is empty, skip a input char. But do emit a node */ | |
|
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|
1690 if (old_post_pos == (int)(post_ptr - post_start)) |
| 4444 | 1691 EMIT(NFA_SKIP_CHAR); |
| 1692 EMIT(NFA_CONCAT); | |
| 1693 ch = peekchr(); | |
| 1694 } | |
| 1695 | |
| 1696 /* Even if a branch is empty, emit one node for it */ | |
|
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|
1697 if (old_post_pos == (int)(post_ptr - post_start)) |
| 4444 | 1698 EMIT(NFA_SKIP_CHAR); |
| 1699 | |
| 1700 return OK; | |
| 1701 } | |
| 1702 | |
| 1703 /* | |
| 1704 * Parse a pattern, one or more branches, separated by "\|". It matches | |
| 1705 * anything that matches one of the branches. Example: "foo\|beep" matches | |
| 1706 * "foo" and matches "beep". If more than one branch matches, the first one | |
| 1707 * is used. | |
| 1708 * | |
| 1709 * pattern ::= branch | |
| 1710 * or branch \| branch | |
| 1711 * or branch \| branch \| branch | |
| 1712 * etc. | |
| 1713 */ | |
| 1714 static int | |
| 1715 nfa_reg(paren) | |
| 1716 int paren; /* REG_NOPAREN, REG_PAREN, REG_NPAREN or REG_ZPAREN */ | |
| 1717 { | |
| 1718 int parno = 0; | |
| 1719 | |
| 1720 if (paren == REG_PAREN) | |
| 1721 { | |
| 1722 if (regnpar >= NSUBEXP) /* Too many `(' */ | |
| 1723 { | |
| 1724 syntax_error = TRUE; | |
| 1725 EMSG_RET_FAIL(_("E872: (NFA regexp) Too many '('")); | |
| 1726 } | |
| 1727 parno = regnpar++; | |
| 1728 } | |
|
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|
1729 #ifdef FEAT_SYN_HL |
|
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|
1730 else if (paren == REG_ZPAREN) |
|
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|
1731 { |
|
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|
1732 /* Make a ZOPEN node. */ |
|
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|
1733 if (regnzpar >= NSUBEXP) |
|
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|
1734 { |
|
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|
1735 syntax_error = TRUE; |
|
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|
1736 EMSG_RET_FAIL(_("E879: (NFA regexp) Too many \\z(")); |
|
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1737 } |
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|
1738 parno = regnzpar++; |
|
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|
1739 } |
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|
1740 #endif |
| 4444 | 1741 |
| 1742 if (nfa_regbranch() == FAIL) | |
| 1743 return FAIL; /* cascaded error */ | |
| 1744 | |
| 1745 while (peekchr() == Magic('|')) | |
| 1746 { | |
| 1747 skipchr(); | |
| 1748 if (nfa_regbranch() == FAIL) | |
| 1749 return FAIL; /* cascaded error */ | |
| 1750 EMIT(NFA_OR); | |
| 1751 } | |
| 1752 | |
| 1753 /* Check for proper termination. */ | |
| 1754 if (paren != REG_NOPAREN && getchr() != Magic(')')) | |
| 1755 { | |
| 1756 syntax_error = TRUE; | |
| 1757 if (paren == REG_NPAREN) | |
| 1758 EMSG2_RET_FAIL(_(e_unmatchedpp), reg_magic == MAGIC_ALL); | |
| 1759 else | |
| 1760 EMSG2_RET_FAIL(_(e_unmatchedp), reg_magic == MAGIC_ALL); | |
| 1761 } | |
| 1762 else if (paren == REG_NOPAREN && peekchr() != NUL) | |
| 1763 { | |
| 1764 syntax_error = TRUE; | |
| 1765 if (peekchr() == Magic(')')) | |
| 1766 EMSG2_RET_FAIL(_(e_unmatchedpar), reg_magic == MAGIC_ALL); | |
| 1767 else | |
| 1768 EMSG_RET_FAIL(_("E873: (NFA regexp) proper termination error")); | |
| 1769 } | |
| 1770 /* | |
| 1771 * Here we set the flag allowing back references to this set of | |
| 1772 * parentheses. | |
| 1773 */ | |
| 1774 if (paren == REG_PAREN) | |
| 1775 { | |
| 1776 had_endbrace[parno] = TRUE; /* have seen the close paren */ | |
| 1777 EMIT(NFA_MOPEN + parno); | |
| 1778 } | |
|
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1779 #ifdef FEAT_SYN_HL |
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1780 else if (paren == REG_ZPAREN) |
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1781 EMIT(NFA_ZOPEN + parno); |
|
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1782 #endif |
| 4444 | 1783 |
| 1784 return OK; | |
| 1785 } | |
| 1786 | |
| 1787 #ifdef DEBUG | |
| 1788 static char_u code[50]; | |
| 1789 | |
| 1790 static void | |
| 1791 nfa_set_code(c) | |
| 1792 int c; | |
| 1793 { | |
| 1794 int addnl = FALSE; | |
| 1795 | |
| 1796 if (c >= NFA_FIRST_NL && c <= NFA_LAST_NL) | |
| 1797 { | |
| 1798 addnl = TRUE; | |
| 1799 c -= ADD_NL; | |
| 1800 } | |
| 1801 | |
| 1802 STRCPY(code, ""); | |
| 1803 switch (c) | |
| 1804 { | |
| 1805 case NFA_MATCH: STRCPY(code, "NFA_MATCH "); break; | |
| 1806 case NFA_SPLIT: STRCPY(code, "NFA_SPLIT "); break; | |
| 1807 case NFA_CONCAT: STRCPY(code, "NFA_CONCAT "); break; | |
| 1808 case NFA_NEWL: STRCPY(code, "NFA_NEWL "); break; | |
| 1809 case NFA_ZSTART: STRCPY(code, "NFA_ZSTART"); break; | |
| 1810 case NFA_ZEND: STRCPY(code, "NFA_ZEND"); break; | |
| 1811 | |
|
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1812 case NFA_BACKREF1: STRCPY(code, "NFA_BACKREF1"); break; |
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1813 case NFA_BACKREF2: STRCPY(code, "NFA_BACKREF2"); break; |
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1814 case NFA_BACKREF3: STRCPY(code, "NFA_BACKREF3"); break; |
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1815 case NFA_BACKREF4: STRCPY(code, "NFA_BACKREF4"); break; |
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1816 case NFA_BACKREF5: STRCPY(code, "NFA_BACKREF5"); break; |
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1817 case NFA_BACKREF6: STRCPY(code, "NFA_BACKREF6"); break; |
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1818 case NFA_BACKREF7: STRCPY(code, "NFA_BACKREF7"); break; |
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1819 case NFA_BACKREF8: STRCPY(code, "NFA_BACKREF8"); break; |
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1820 case NFA_BACKREF9: STRCPY(code, "NFA_BACKREF9"); break; |
|
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1821 #ifdef FEAT_SYN_HL |
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1822 case NFA_ZREF1: STRCPY(code, "NFA_ZREF1"); break; |
|
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1823 case NFA_ZREF2: STRCPY(code, "NFA_ZREF2"); break; |
|
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1824 case NFA_ZREF3: STRCPY(code, "NFA_ZREF3"); break; |
|
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1825 case NFA_ZREF4: STRCPY(code, "NFA_ZREF4"); break; |
|
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1826 case NFA_ZREF5: STRCPY(code, "NFA_ZREF5"); break; |
|
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1827 case NFA_ZREF6: STRCPY(code, "NFA_ZREF6"); break; |
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1828 case NFA_ZREF7: STRCPY(code, "NFA_ZREF7"); break; |
|
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1829 case NFA_ZREF8: STRCPY(code, "NFA_ZREF8"); break; |
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1830 case NFA_ZREF9: STRCPY(code, "NFA_ZREF9"); break; |
|
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1831 #endif |
|
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1832 case NFA_SKIP: STRCPY(code, "NFA_SKIP"); break; |
|
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1833 |
| 4444 | 1834 case NFA_PREV_ATOM_NO_WIDTH: |
| 1835 STRCPY(code, "NFA_PREV_ATOM_NO_WIDTH"); break; | |
|
4583
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1836 case NFA_PREV_ATOM_NO_WIDTH_NEG: |
|
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1837 STRCPY(code, "NFA_PREV_ATOM_NO_WIDTH_NEG"); break; |
|
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1838 case NFA_PREV_ATOM_JUST_BEFORE: |
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1839 STRCPY(code, "NFA_PREV_ATOM_JUST_BEFORE"); break; |
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1840 case NFA_PREV_ATOM_JUST_BEFORE_NEG: |
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1841 STRCPY(code, "NFA_PREV_ATOM_JUST_BEFORE_NEG"); break; |
|
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1842 case NFA_NOPEN: STRCPY(code, "NFA_NOPEN"); break; |
|
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1843 case NFA_NCLOSE: STRCPY(code, "NFA_NCLOSE"); break; |
| 4444 | 1844 case NFA_START_INVISIBLE: STRCPY(code, "NFA_START_INVISIBLE"); break; |
|
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1845 case NFA_START_INVISIBLE_BEFORE: |
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1846 STRCPY(code, "NFA_START_INVISIBLE_BEFORE"); break; |
| 4444 | 1847 case NFA_END_INVISIBLE: STRCPY(code, "NFA_END_INVISIBLE"); break; |
| 1848 | |
| 1849 case NFA_COMPOSING: STRCPY(code, "NFA_COMPOSING"); break; | |
| 1850 case NFA_END_COMPOSING: STRCPY(code, "NFA_END_COMPOSING"); break; | |
| 1851 | |
|
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1852 case NFA_MOPEN: |
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1853 case NFA_MOPEN1: |
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1854 case NFA_MOPEN2: |
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1855 case NFA_MOPEN3: |
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1856 case NFA_MOPEN4: |
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1857 case NFA_MOPEN5: |
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1858 case NFA_MOPEN6: |
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1859 case NFA_MOPEN7: |
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1860 case NFA_MOPEN8: |
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1861 case NFA_MOPEN9: |
| 4444 | 1862 STRCPY(code, "NFA_MOPEN(x)"); |
| 1863 code[10] = c - NFA_MOPEN + '0'; | |
| 1864 break; | |
|
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1865 case NFA_MCLOSE: |
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1866 case NFA_MCLOSE1: |
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1867 case NFA_MCLOSE2: |
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1868 case NFA_MCLOSE3: |
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1869 case NFA_MCLOSE4: |
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1870 case NFA_MCLOSE5: |
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1871 case NFA_MCLOSE6: |
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1872 case NFA_MCLOSE7: |
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1873 case NFA_MCLOSE8: |
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1874 case NFA_MCLOSE9: |
| 4444 | 1875 STRCPY(code, "NFA_MCLOSE(x)"); |
| 1876 code[11] = c - NFA_MCLOSE + '0'; | |
| 1877 break; | |
|
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1878 #ifdef FEAT_SYN_HL |
|
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1879 case NFA_ZOPEN: |
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1880 case NFA_ZOPEN1: |
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1881 case NFA_ZOPEN2: |
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1882 case NFA_ZOPEN3: |
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1883 case NFA_ZOPEN4: |
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1884 case NFA_ZOPEN5: |
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1885 case NFA_ZOPEN6: |
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1886 case NFA_ZOPEN7: |
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1887 case NFA_ZOPEN8: |
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1888 case NFA_ZOPEN9: |
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1889 STRCPY(code, "NFA_ZOPEN(x)"); |
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1890 code[10] = c - NFA_ZOPEN + '0'; |
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1891 break; |
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1892 case NFA_ZCLOSE: |
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1893 case NFA_ZCLOSE1: |
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1894 case NFA_ZCLOSE2: |
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1895 case NFA_ZCLOSE3: |
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1896 case NFA_ZCLOSE4: |
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1897 case NFA_ZCLOSE5: |
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1898 case NFA_ZCLOSE6: |
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1899 case NFA_ZCLOSE7: |
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1900 case NFA_ZCLOSE8: |
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|
1901 case NFA_ZCLOSE9: |
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|
1902 STRCPY(code, "NFA_ZCLOSE(x)"); |
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1903 code[11] = c - NFA_ZCLOSE + '0'; |
|
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1904 break; |
|
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1905 #endif |
| 4444 | 1906 case NFA_EOL: STRCPY(code, "NFA_EOL "); break; |
| 1907 case NFA_BOL: STRCPY(code, "NFA_BOL "); break; | |
| 1908 case NFA_EOW: STRCPY(code, "NFA_EOW "); break; | |
| 1909 case NFA_BOW: STRCPY(code, "NFA_BOW "); break; | |
|
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|
1910 case NFA_EOF: STRCPY(code, "NFA_EOF "); break; |
|
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1911 case NFA_BOF: STRCPY(code, "NFA_BOF "); break; |
| 4444 | 1912 case NFA_STAR: STRCPY(code, "NFA_STAR "); break; |
|
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1913 case NFA_STAR_NONGREEDY: STRCPY(code, "NFA_STAR_NONGREEDY "); break; |
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1914 case NFA_QUEST: STRCPY(code, "NFA_QUEST"); break; |
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1915 case NFA_QUEST_NONGREEDY: STRCPY(code, "NFA_QUEST_NON_GREEDY"); break; |
| 4444 | 1916 case NFA_NOT: STRCPY(code, "NFA_NOT "); break; |
| 1917 case NFA_SKIP_CHAR: STRCPY(code, "NFA_SKIP_CHAR"); break; | |
| 1918 case NFA_OR: STRCPY(code, "NFA_OR"); break; | |
| 1919 case NFA_END_NEG_RANGE: STRCPY(code, "NFA_END_NEG_RANGE"); break; | |
| 1920 case NFA_CLASS_ALNUM: STRCPY(code, "NFA_CLASS_ALNUM"); break; | |
| 1921 case NFA_CLASS_ALPHA: STRCPY(code, "NFA_CLASS_ALPHA"); break; | |
| 1922 case NFA_CLASS_BLANK: STRCPY(code, "NFA_CLASS_BLANK"); break; | |
| 1923 case NFA_CLASS_CNTRL: STRCPY(code, "NFA_CLASS_CNTRL"); break; | |
| 1924 case NFA_CLASS_DIGIT: STRCPY(code, "NFA_CLASS_DIGIT"); break; | |
| 1925 case NFA_CLASS_GRAPH: STRCPY(code, "NFA_CLASS_GRAPH"); break; | |
| 1926 case NFA_CLASS_LOWER: STRCPY(code, "NFA_CLASS_LOWER"); break; | |
| 1927 case NFA_CLASS_PRINT: STRCPY(code, "NFA_CLASS_PRINT"); break; | |
| 1928 case NFA_CLASS_PUNCT: STRCPY(code, "NFA_CLASS_PUNCT"); break; | |
| 1929 case NFA_CLASS_SPACE: STRCPY(code, "NFA_CLASS_SPACE"); break; | |
| 1930 case NFA_CLASS_UPPER: STRCPY(code, "NFA_CLASS_UPPER"); break; | |
| 1931 case NFA_CLASS_XDIGIT: STRCPY(code, "NFA_CLASS_XDIGIT"); break; | |
| 1932 case NFA_CLASS_TAB: STRCPY(code, "NFA_CLASS_TAB"); break; | |
| 1933 case NFA_CLASS_RETURN: STRCPY(code, "NFA_CLASS_RETURN"); break; | |
| 1934 case NFA_CLASS_BACKSPACE: STRCPY(code, "NFA_CLASS_BACKSPACE"); break; | |
| 1935 case NFA_CLASS_ESCAPE: STRCPY(code, "NFA_CLASS_ESCAPE"); break; | |
| 1936 | |
| 1937 case NFA_ANY: STRCPY(code, "NFA_ANY"); break; | |
| 1938 case NFA_IDENT: STRCPY(code, "NFA_IDENT"); break; | |
| 1939 case NFA_SIDENT:STRCPY(code, "NFA_SIDENT"); break; | |
| 1940 case NFA_KWORD: STRCPY(code, "NFA_KWORD"); break; | |
| 1941 case NFA_SKWORD:STRCPY(code, "NFA_SKWORD"); break; | |
| 1942 case NFA_FNAME: STRCPY(code, "NFA_FNAME"); break; | |
| 1943 case NFA_SFNAME:STRCPY(code, "NFA_SFNAME"); break; | |
| 1944 case NFA_PRINT: STRCPY(code, "NFA_PRINT"); break; | |
| 1945 case NFA_SPRINT:STRCPY(code, "NFA_SPRINT"); break; | |
| 1946 case NFA_WHITE: STRCPY(code, "NFA_WHITE"); break; | |
| 1947 case NFA_NWHITE:STRCPY(code, "NFA_NWHITE"); break; | |
| 1948 case NFA_DIGIT: STRCPY(code, "NFA_DIGIT"); break; | |
| 1949 case NFA_NDIGIT:STRCPY(code, "NFA_NDIGIT"); break; | |
| 1950 case NFA_HEX: STRCPY(code, "NFA_HEX"); break; | |
| 1951 case NFA_NHEX: STRCPY(code, "NFA_NHEX"); break; | |
| 1952 case NFA_OCTAL: STRCPY(code, "NFA_OCTAL"); break; | |
| 1953 case NFA_NOCTAL:STRCPY(code, "NFA_NOCTAL"); break; | |
| 1954 case NFA_WORD: STRCPY(code, "NFA_WORD"); break; | |
| 1955 case NFA_NWORD: STRCPY(code, "NFA_NWORD"); break; | |
| 1956 case NFA_HEAD: STRCPY(code, "NFA_HEAD"); break; | |
| 1957 case NFA_NHEAD: STRCPY(code, "NFA_NHEAD"); break; | |
| 1958 case NFA_ALPHA: STRCPY(code, "NFA_ALPHA"); break; | |
| 1959 case NFA_NALPHA:STRCPY(code, "NFA_NALPHA"); break; | |
| 1960 case NFA_LOWER: STRCPY(code, "NFA_LOWER"); break; | |
| 1961 case NFA_NLOWER:STRCPY(code, "NFA_NLOWER"); break; | |
| 1962 case NFA_UPPER: STRCPY(code, "NFA_UPPER"); break; | |
| 1963 case NFA_NUPPER:STRCPY(code, "NFA_NUPPER"); break; | |
| 1964 | |
| 1965 default: | |
| 1966 STRCPY(code, "CHAR(x)"); | |
| 1967 code[5] = c; | |
| 1968 } | |
| 1969 | |
| 1970 if (addnl == TRUE) | |
| 1971 STRCAT(code, " + NEWLINE "); | |
| 1972 | |
| 1973 } | |
| 1974 | |
| 1975 #ifdef ENABLE_LOG | |
| 1976 static FILE *log_fd; | |
| 1977 | |
| 1978 /* | |
| 1979 * Print the postfix notation of the current regexp. | |
| 1980 */ | |
| 1981 static void | |
| 1982 nfa_postfix_dump(expr, retval) | |
| 1983 char_u *expr; | |
| 1984 int retval; | |
| 1985 { | |
| 1986 int *p; | |
| 1987 FILE *f; | |
| 1988 | |
|
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|
1989 f = fopen(NFA_REGEXP_DUMP_LOG, "a"); |
| 4444 | 1990 if (f != NULL) |
| 1991 { | |
| 1992 fprintf(f, "\n-------------------------\n"); | |
| 1993 if (retval == FAIL) | |
| 1994 fprintf(f, ">>> NFA engine failed ... \n"); | |
| 1995 else if (retval == OK) | |
| 1996 fprintf(f, ">>> NFA engine succeeded !\n"); | |
| 1997 fprintf(f, "Regexp: \"%s\"\nPostfix notation (char): \"", expr); | |
| 4464 | 1998 for (p = post_start; *p && p < post_end; p++) |
| 4444 | 1999 { |
| 2000 nfa_set_code(*p); | |
| 2001 fprintf(f, "%s, ", code); | |
| 2002 } | |
| 2003 fprintf(f, "\"\nPostfix notation (int): "); | |
| 4464 | 2004 for (p = post_start; *p && p < post_end; p++) |
| 4444 | 2005 fprintf(f, "%d ", *p); |
| 2006 fprintf(f, "\n\n"); | |
| 2007 fclose(f); | |
| 2008 } | |
| 2009 } | |
| 2010 | |
| 2011 /* | |
| 2012 * Print the NFA starting with a root node "state". | |
| 2013 */ | |
| 2014 static void | |
|
4533
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|
2015 nfa_print_state(debugf, state) |
| 4444 | 2016 FILE *debugf; |
| 2017 nfa_state_T *state; | |
| 2018 { | |
|
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2019 garray_T indent; |
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2020 |
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2021 ga_init2(&indent, 1, 64); |
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2022 ga_append(&indent, '\0'); |
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2023 nfa_print_state2(debugf, state, &indent); |
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2024 ga_clear(&indent); |
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2025 } |
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2026 |
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2027 static void |
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2028 nfa_print_state2(debugf, state, indent) |
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2029 FILE *debugf; |
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2030 nfa_state_T *state; |
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2031 garray_T *indent; |
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2032 { |
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2033 char_u *p; |
| 4444 | 2034 |
| 2035 if (state == NULL) | |
| 2036 return; | |
| 2037 | |
| 2038 fprintf(debugf, "(%2d)", abs(state->id)); | |
|
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2039 |
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2040 /* Output indent */ |
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2041 p = (char_u *)indent->ga_data; |
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2042 if (indent->ga_len >= 3) |
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2043 { |
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2044 int last = indent->ga_len - 3; |
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2045 char_u save[2]; |
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2046 |
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2047 STRNCPY(save, &p[last], 2); |
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2048 STRNCPY(&p[last], "+-", 2); |
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2049 fprintf(debugf, " %s", p); |
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2050 STRNCPY(&p[last], save, 2); |
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2051 } |
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2052 else |
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2053 fprintf(debugf, " %s", p); |
| 4444 | 2054 |
| 2055 nfa_set_code(state->c); | |
|
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2056 fprintf(debugf, "%s%s (%d) (id=%d)\n", |
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2057 state->negated ? "NOT " : "", code, state->c, abs(state->id)); |
| 4444 | 2058 if (state->id < 0) |
| 2059 return; | |
| 2060 | |
| 2061 state->id = abs(state->id) * -1; | |
|
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2062 |
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2063 /* grow indent for state->out */ |
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2064 indent->ga_len -= 1; |
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2065 if (state->out1) |
|
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2066 ga_concat(indent, (char_u *)"| "); |
|
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2067 else |
|
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2068 ga_concat(indent, (char_u *)" "); |
|
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2069 ga_append(indent, '\0'); |
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2070 |
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2071 nfa_print_state2(debugf, state->out, indent); |
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2072 |
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2073 /* replace last part of indent for state->out1 */ |
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2074 indent->ga_len -= 3; |
|
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2075 ga_concat(indent, (char_u *)" "); |
|
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2076 ga_append(indent, '\0'); |
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2077 |
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2078 nfa_print_state2(debugf, state->out1, indent); |
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2079 |
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2080 /* shrink indent */ |
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2081 indent->ga_len -= 3; |
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|
2082 ga_append(indent, '\0'); |
| 4444 | 2083 } |
| 2084 | |
| 2085 /* | |
| 2086 * Print the NFA state machine. | |
| 2087 */ | |
| 2088 static void | |
| 2089 nfa_dump(prog) | |
| 2090 nfa_regprog_T *prog; | |
| 2091 { | |
|
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|
2092 FILE *debugf = fopen(NFA_REGEXP_DUMP_LOG, "a"); |
| 4444 | 2093 |
| 2094 if (debugf != NULL) | |
| 2095 { | |
|
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|
2096 nfa_print_state(debugf, prog->start); |
| 4444 | 2097 fclose(debugf); |
| 2098 } | |
| 2099 } | |
| 2100 #endif /* ENABLE_LOG */ | |
| 2101 #endif /* DEBUG */ | |
| 2102 | |
| 2103 /* | |
| 2104 * Parse r.e. @expr and convert it into postfix form. | |
| 2105 * Return the postfix string on success, NULL otherwise. | |
| 2106 */ | |
| 2107 static int * | |
| 2108 re2post() | |
| 2109 { | |
| 2110 if (nfa_reg(REG_NOPAREN) == FAIL) | |
| 2111 return NULL; | |
| 2112 EMIT(NFA_MOPEN); | |
| 2113 return post_start; | |
| 2114 } | |
| 2115 | |
| 2116 /* NB. Some of the code below is inspired by Russ's. */ | |
| 2117 | |
| 2118 /* | |
| 2119 * Represents an NFA state plus zero or one or two arrows exiting. | |
| 2120 * if c == MATCH, no arrows out; matching state. | |
| 2121 * If c == SPLIT, unlabeled arrows to out and out1 (if != NULL). | |
| 2122 * If c < 256, labeled arrow with character c to out. | |
| 2123 */ | |
| 2124 | |
| 2125 static nfa_state_T *state_ptr; /* points to nfa_prog->state */ | |
| 2126 | |
| 2127 /* | |
| 2128 * Allocate and initialize nfa_state_T. | |
| 2129 */ | |
| 2130 static nfa_state_T * | |
| 2131 new_state(c, out, out1) | |
| 2132 int c; | |
| 2133 nfa_state_T *out; | |
| 2134 nfa_state_T *out1; | |
| 2135 { | |
| 2136 nfa_state_T *s; | |
| 2137 | |
| 2138 if (istate >= nstate) | |
| 2139 return NULL; | |
| 2140 | |
| 2141 s = &state_ptr[istate++]; | |
| 2142 | |
| 2143 s->c = c; | |
| 2144 s->out = out; | |
| 2145 s->out1 = out1; | |
| 2146 | |
| 2147 s->id = istate; | |
| 2148 s->lastlist = 0; | |
| 2149 s->negated = FALSE; | |
| 2150 | |
| 2151 return s; | |
| 2152 } | |
| 2153 | |
| 2154 /* | |
| 2155 * A partially built NFA without the matching state filled in. | |
| 2156 * Frag_T.start points at the start state. | |
| 2157 * Frag_T.out is a list of places that need to be set to the | |
| 2158 * next state for this fragment. | |
| 2159 */ | |
|
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2160 |
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|
2161 /* Since the out pointers in the list are always |
|
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|
2162 * uninitialized, we use the pointers themselves |
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|
2163 * as storage for the Ptrlists. */ |
| 4444 | 2164 typedef union Ptrlist Ptrlist; |
|
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|
2165 union Ptrlist |
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|
2166 { |
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|
2167 Ptrlist *next; |
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|
2168 nfa_state_T *s; |
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|
2169 }; |
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2170 |
| 4444 | 2171 struct Frag |
| 2172 { | |
|
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|
2173 nfa_state_T *start; |
| 4444 | 2174 Ptrlist *out; |
| 2175 }; | |
| 2176 typedef struct Frag Frag_T; | |
| 2177 | |
| 2178 static Frag_T frag __ARGS((nfa_state_T *start, Ptrlist *out)); | |
| 2179 static Ptrlist *list1 __ARGS((nfa_state_T **outp)); | |
| 2180 static void patch __ARGS((Ptrlist *l, nfa_state_T *s)); | |
| 2181 static Ptrlist *append __ARGS((Ptrlist *l1, Ptrlist *l2)); | |
| 2182 static void st_push __ARGS((Frag_T s, Frag_T **p, Frag_T *stack_end)); | |
| 2183 static Frag_T st_pop __ARGS((Frag_T **p, Frag_T *stack)); | |
| 2184 | |
| 2185 /* | |
| 4456 | 2186 * Initialize a Frag_T struct and return it. |
| 4444 | 2187 */ |
| 2188 static Frag_T | |
| 2189 frag(start, out) | |
| 2190 nfa_state_T *start; | |
| 2191 Ptrlist *out; | |
| 2192 { | |
| 4456 | 2193 Frag_T n; |
| 2194 | |
| 2195 n.start = start; | |
| 2196 n.out = out; | |
| 4444 | 2197 return n; |
| 2198 } | |
| 2199 | |
| 2200 /* | |
| 2201 * Create singleton list containing just outp. | |
| 2202 */ | |
| 2203 static Ptrlist * | |
| 2204 list1(outp) | |
| 2205 nfa_state_T **outp; | |
| 2206 { | |
| 2207 Ptrlist *l; | |
| 2208 | |
| 2209 l = (Ptrlist *)outp; | |
| 2210 l->next = NULL; | |
| 2211 return l; | |
| 2212 } | |
| 2213 | |
| 2214 /* | |
| 2215 * Patch the list of states at out to point to start. | |
| 2216 */ | |
| 2217 static void | |
| 2218 patch(l, s) | |
| 2219 Ptrlist *l; | |
| 2220 nfa_state_T *s; | |
| 2221 { | |
| 2222 Ptrlist *next; | |
| 2223 | |
| 2224 for (; l; l = next) | |
| 2225 { | |
| 2226 next = l->next; | |
| 2227 l->s = s; | |
| 2228 } | |
| 2229 } | |
| 2230 | |
| 2231 | |
| 2232 /* | |
| 2233 * Join the two lists l1 and l2, returning the combination. | |
| 2234 */ | |
| 2235 static Ptrlist * | |
| 2236 append(l1, l2) | |
| 2237 Ptrlist *l1; | |
| 2238 Ptrlist *l2; | |
| 2239 { | |
| 2240 Ptrlist *oldl1; | |
| 2241 | |
| 2242 oldl1 = l1; | |
| 2243 while (l1->next) | |
| 2244 l1 = l1->next; | |
| 2245 l1->next = l2; | |
| 2246 return oldl1; | |
| 2247 } | |
| 2248 | |
| 2249 /* | |
| 2250 * Stack used for transforming postfix form into NFA. | |
| 2251 */ | |
| 2252 static Frag_T empty; | |
| 2253 | |
| 2254 static void | |
| 2255 st_error(postfix, end, p) | |
|
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2256 int *postfix UNUSED; |
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2257 int *end UNUSED; |
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2258 int *p UNUSED; |
| 4444 | 2259 { |
|
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2260 #ifdef NFA_REGEXP_ERROR_LOG |
| 4444 | 2261 FILE *df; |
| 2262 int *p2; | |
| 2263 | |
|
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2264 df = fopen(NFA_REGEXP_ERROR_LOG, "a"); |
| 4444 | 2265 if (df) |
| 2266 { | |
| 2267 fprintf(df, "Error popping the stack!\n"); | |
| 2268 #ifdef DEBUG | |
| 2269 fprintf(df, "Current regexp is \"%s\"\n", nfa_regengine.expr); | |
| 2270 #endif | |
| 2271 fprintf(df, "Postfix form is: "); | |
| 2272 #ifdef DEBUG | |
| 2273 for (p2 = postfix; p2 < end; p2++) | |
| 2274 { | |
| 2275 nfa_set_code(*p2); | |
| 2276 fprintf(df, "%s, ", code); | |
| 2277 } | |
| 2278 nfa_set_code(*p); | |
| 2279 fprintf(df, "\nCurrent position is: "); | |
| 2280 for (p2 = postfix; p2 <= p; p2 ++) | |
| 2281 { | |
| 2282 nfa_set_code(*p2); | |
| 2283 fprintf(df, "%s, ", code); | |
| 2284 } | |
| 2285 #else | |
| 2286 for (p2 = postfix; p2 < end; p2++) | |
| 2287 { | |
| 2288 fprintf(df, "%d, ", *p2); | |
| 2289 } | |
| 2290 fprintf(df, "\nCurrent position is: "); | |
| 2291 for (p2 = postfix; p2 <= p; p2 ++) | |
| 2292 { | |
| 2293 fprintf(df, "%d, ", *p2); | |
| 2294 } | |
| 2295 #endif | |
| 2296 fprintf(df, "\n--------------------------\n"); | |
| 2297 fclose(df); | |
| 2298 } | |
|
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2299 #endif |
| 4444 | 2300 EMSG(_("E874: (NFA) Could not pop the stack !")); |
| 2301 } | |
| 2302 | |
| 2303 /* | |
| 2304 * Push an item onto the stack. | |
| 2305 */ | |
| 2306 static void | |
| 2307 st_push(s, p, stack_end) | |
| 2308 Frag_T s; | |
| 2309 Frag_T **p; | |
| 2310 Frag_T *stack_end; | |
| 2311 { | |
| 2312 Frag_T *stackp = *p; | |
| 2313 | |
| 2314 if (stackp >= stack_end) | |
| 2315 return; | |
| 2316 *stackp = s; | |
| 2317 *p = *p + 1; | |
| 2318 } | |
| 2319 | |
| 2320 /* | |
| 2321 * Pop an item from the stack. | |
| 2322 */ | |
| 2323 static Frag_T | |
| 2324 st_pop(p, stack) | |
| 2325 Frag_T **p; | |
| 2326 Frag_T *stack; | |
| 2327 { | |
| 2328 Frag_T *stackp; | |
| 2329 | |
| 2330 *p = *p - 1; | |
| 2331 stackp = *p; | |
| 2332 if (stackp < stack) | |
| 2333 return empty; | |
| 2334 return **p; | |
| 2335 } | |
| 2336 | |
| 2337 /* | |
| 2338 * Convert a postfix form into its equivalent NFA. | |
| 2339 * Return the NFA start state on success, NULL otherwise. | |
| 2340 */ | |
| 2341 static nfa_state_T * | |
| 2342 post2nfa(postfix, end, nfa_calc_size) | |
| 2343 int *postfix; | |
| 2344 int *end; | |
| 2345 int nfa_calc_size; | |
| 2346 { | |
| 2347 int *p; | |
| 2348 int mopen; | |
| 2349 int mclose; | |
| 2350 Frag_T *stack = NULL; | |
| 2351 Frag_T *stackp = NULL; | |
| 2352 Frag_T *stack_end = NULL; | |
| 2353 Frag_T e1; | |
| 2354 Frag_T e2; | |
| 2355 Frag_T e; | |
| 2356 nfa_state_T *s; | |
| 2357 nfa_state_T *s1; | |
| 2358 nfa_state_T *matchstate; | |
| 4484 | 2359 nfa_state_T *ret = NULL; |
| 4444 | 2360 |
| 2361 if (postfix == NULL) | |
| 2362 return NULL; | |
| 2363 | |
| 4456 | 2364 #define PUSH(s) st_push((s), &stackp, stack_end) |
| 4444 | 2365 #define POP() st_pop(&stackp, stack); \ |
| 2366 if (stackp < stack) \ | |
| 2367 { \ | |
| 2368 st_error(postfix, end, p); \ | |
| 2369 return NULL; \ | |
| 2370 } | |
| 2371 | |
| 2372 if (nfa_calc_size == FALSE) | |
| 2373 { | |
| 2374 /* Allocate space for the stack. Max states on the stack : nstate */ | |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2375 stack = (Frag_T *)lalloc((nstate + 1) * sizeof(Frag_T), TRUE); |
| 4444 | 2376 stackp = stack; |
| 4462 | 2377 stack_end = stack + (nstate + 1); |
| 4444 | 2378 } |
| 2379 | |
| 2380 for (p = postfix; p < end; ++p) | |
| 2381 { | |
| 2382 switch (*p) | |
| 2383 { | |
| 2384 case NFA_CONCAT: | |
| 2385 /* Catenation. | |
| 2386 * Pay attention: this operator does not exist | |
| 2387 * in the r.e. itself (it is implicit, really). | |
| 2388 * It is added when r.e. is translated to postfix | |
| 2389 * form in re2post(). | |
| 2390 * | |
| 2391 * No new state added here. */ | |
| 2392 if (nfa_calc_size == TRUE) | |
| 2393 { | |
| 4458 | 2394 /* nstate += 0; */ |
| 4444 | 2395 break; |
| 2396 } | |
| 2397 e2 = POP(); | |
| 2398 e1 = POP(); | |
| 2399 patch(e1.out, e2.start); | |
| 2400 PUSH(frag(e1.start, e2.out)); | |
| 2401 break; | |
| 2402 | |
| 2403 case NFA_NOT: | |
| 2404 /* Negation of a character */ | |
| 2405 if (nfa_calc_size == TRUE) | |
| 2406 { | |
| 4458 | 2407 /* nstate += 0; */ |
| 4444 | 2408 break; |
| 2409 } | |
| 2410 e1 = POP(); | |
| 2411 e1.start->negated = TRUE; | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2412 #ifdef FEAT_MBYTE |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2413 if (e1.start->c == NFA_COMPOSING) |
| 4444 | 2414 e1.start->out1->negated = TRUE; |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2415 #endif |
| 4444 | 2416 PUSH(e1); |
| 2417 break; | |
| 2418 | |
| 2419 case NFA_OR: | |
| 2420 /* Alternation */ | |
| 2421 if (nfa_calc_size == TRUE) | |
| 2422 { | |
| 4458 | 2423 nstate++; |
| 4444 | 2424 break; |
| 2425 } | |
| 2426 e2 = POP(); | |
| 2427 e1 = POP(); | |
| 2428 s = new_state(NFA_SPLIT, e1.start, e2.start); | |
| 2429 if (s == NULL) | |
| 4484 | 2430 goto theend; |
| 4444 | 2431 PUSH(frag(s, append(e1.out, e2.out))); |
| 2432 break; | |
| 2433 | |
| 2434 case NFA_STAR: | |
|
4675
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2435 /* Zero or more, prefer more */ |
| 4444 | 2436 if (nfa_calc_size == TRUE) |
| 2437 { | |
| 4458 | 2438 nstate++; |
| 4444 | 2439 break; |
| 2440 } | |
| 2441 e = POP(); | |
| 2442 s = new_state(NFA_SPLIT, e.start, NULL); | |
| 2443 if (s == NULL) | |
| 4484 | 2444 goto theend; |
| 4444 | 2445 patch(e.out, s); |
| 2446 PUSH(frag(s, list1(&s->out1))); | |
| 2447 break; | |
| 2448 | |
|
4675
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2449 case NFA_STAR_NONGREEDY: |
|
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2450 /* Zero or more, prefer zero */ |
|
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2451 if (nfa_calc_size == TRUE) |
|
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2452 { |
|
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2453 nstate++; |
|
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2454 break; |
|
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2455 } |
|
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2456 e = POP(); |
|
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2457 s = new_state(NFA_SPLIT, NULL, e.start); |
|
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2458 if (s == NULL) |
|
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2459 goto theend; |
|
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2460 patch(e.out, s); |
|
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2461 PUSH(frag(s, list1(&s->out))); |
|
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2462 break; |
|
811a4c9b51d8
updated for version 7.3.1085
Bram Moolenaar <bram@vim.org>
parents:
4673
diff
changeset
|
2463 |
| 4444 | 2464 case NFA_QUEST: |
| 2465 /* one or zero atoms=> greedy match */ | |
| 2466 if (nfa_calc_size == TRUE) | |
| 2467 { | |
| 4458 | 2468 nstate++; |
| 4444 | 2469 break; |
| 2470 } | |
| 2471 e = POP(); | |
| 2472 s = new_state(NFA_SPLIT, e.start, NULL); | |
| 2473 if (s == NULL) | |
| 4484 | 2474 goto theend; |
| 4444 | 2475 PUSH(frag(s, append(e.out, list1(&s->out1)))); |
| 2476 break; | |
| 2477 | |
| 2478 case NFA_QUEST_NONGREEDY: | |
| 2479 /* zero or one atoms => non-greedy match */ | |
| 2480 if (nfa_calc_size == TRUE) | |
| 2481 { | |
| 4458 | 2482 nstate++; |
| 4444 | 2483 break; |
| 2484 } | |
| 2485 e = POP(); | |
| 2486 s = new_state(NFA_SPLIT, NULL, e.start); | |
| 2487 if (s == NULL) | |
| 4484 | 2488 goto theend; |
| 4444 | 2489 PUSH(frag(s, append(e.out, list1(&s->out)))); |
| 2490 break; | |
| 2491 | |
| 2492 case NFA_SKIP_CHAR: | |
| 2493 /* Symbol of 0-length, Used in a repetition | |
| 2494 * with max/min count of 0 */ | |
| 2495 if (nfa_calc_size == TRUE) | |
| 2496 { | |
| 4458 | 2497 nstate++; |
| 4444 | 2498 break; |
| 2499 } | |
| 2500 s = new_state(NFA_SKIP_CHAR, NULL, NULL); | |
| 2501 if (s == NULL) | |
| 4484 | 2502 goto theend; |
| 4444 | 2503 PUSH(frag(s, list1(&s->out))); |
| 2504 break; | |
| 2505 | |
| 2506 case NFA_PREV_ATOM_NO_WIDTH: | |
|
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2507 case NFA_PREV_ATOM_NO_WIDTH_NEG: |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2508 case NFA_PREV_ATOM_JUST_BEFORE: |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2509 case NFA_PREV_ATOM_JUST_BEFORE_NEG: |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2510 /* The \@= operator: match the preceding atom with zero width. |
|
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2511 * The \@! operator: no match for the preceding atom. |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2512 * The \@<= operator: match for the preceding atom. |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2513 * The \@<! operator: no match for the preceding atom. |
| 4444 | 2514 * Surrounds the preceding atom with START_INVISIBLE and |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
2515 * END_INVISIBLE, similarly to MOPEN. */ |
| 4444 | 2516 |
| 2517 if (nfa_calc_size == TRUE) | |
| 2518 { | |
| 2519 nstate += 2; | |
| 2520 break; | |
| 2521 } | |
| 2522 e = POP(); | |
| 2523 s1 = new_state(NFA_END_INVISIBLE, NULL, NULL); | |
| 2524 if (s1 == NULL) | |
| 4484 | 2525 goto theend; |
| 4444 | 2526 patch(e.out, s1); |
| 2527 | |
| 2528 s = new_state(NFA_START_INVISIBLE, e.start, s1); | |
| 2529 if (s == NULL) | |
| 4484 | 2530 goto theend; |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2531 if (*p == NFA_PREV_ATOM_NO_WIDTH_NEG |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2532 || *p == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
|
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2533 { |
|
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2534 s->negated = TRUE; |
|
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2535 s1->negated = TRUE; |
|
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2536 } |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2537 if (*p == NFA_PREV_ATOM_JUST_BEFORE |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2538 || *p == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2539 { |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2540 s->val = *++p; /* get the count */ |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2541 ++s->c; /* NFA_START_INVISIBLE -> NFA_START_INVISIBLE_BEFORE */ |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2542 } |
|
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2543 |
| 4444 | 2544 PUSH(frag(s, list1(&s1->out))); |
| 2545 break; | |
| 2546 | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2547 #ifdef FEAT_MBYTE |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2548 case NFA_COMPOSING: /* char with composing char */ |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2549 #if 0 |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2550 /* TODO */ |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2551 if (regflags & RF_ICOMBINE) |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2552 { |
|
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
2553 /* use the base character only */ |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2554 } |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2555 #endif |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2556 /* FALLTHROUGH */ |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2557 #endif |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2558 |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2559 case NFA_MOPEN: /* \( \) Submatch */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2560 case NFA_MOPEN1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2561 case NFA_MOPEN2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2562 case NFA_MOPEN3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2563 case NFA_MOPEN4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2564 case NFA_MOPEN5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2565 case NFA_MOPEN6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2566 case NFA_MOPEN7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2567 case NFA_MOPEN8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2568 case NFA_MOPEN9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2569 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2570 case NFA_ZOPEN: /* \z( \) Submatch */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2571 case NFA_ZOPEN1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2572 case NFA_ZOPEN2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2573 case NFA_ZOPEN3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2574 case NFA_ZOPEN4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2575 case NFA_ZOPEN5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2576 case NFA_ZOPEN6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2577 case NFA_ZOPEN7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2578 case NFA_ZOPEN8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2579 case NFA_ZOPEN9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2580 #endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2581 case NFA_NOPEN: /* \%( \) "Invisible Submatch" */ |
| 4444 | 2582 if (nfa_calc_size == TRUE) |
| 2583 { | |
| 2584 nstate += 2; | |
| 2585 break; | |
| 2586 } | |
| 2587 | |
| 2588 mopen = *p; | |
| 2589 switch (*p) | |
| 2590 { | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2591 case NFA_NOPEN: mclose = NFA_NCLOSE; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2592 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2593 case NFA_ZOPEN: mclose = NFA_ZCLOSE; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2594 case NFA_ZOPEN1: mclose = NFA_ZCLOSE1; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2595 case NFA_ZOPEN2: mclose = NFA_ZCLOSE2; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2596 case NFA_ZOPEN3: mclose = NFA_ZCLOSE3; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2597 case NFA_ZOPEN4: mclose = NFA_ZCLOSE4; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2598 case NFA_ZOPEN5: mclose = NFA_ZCLOSE5; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2599 case NFA_ZOPEN6: mclose = NFA_ZCLOSE6; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2600 case NFA_ZOPEN7: mclose = NFA_ZCLOSE7; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2601 case NFA_ZOPEN8: mclose = NFA_ZCLOSE8; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2602 case NFA_ZOPEN9: mclose = NFA_ZCLOSE9; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2603 #endif |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2604 #ifdef FEAT_MBYTE |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2605 case NFA_COMPOSING: mclose = NFA_END_COMPOSING; break; |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2606 #endif |
| 4444 | 2607 default: |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2608 /* NFA_MOPEN, NFA_MOPEN1 .. NFA_MOPEN9 */ |
| 4444 | 2609 mclose = *p + NSUBEXP; |
| 2610 break; | |
| 2611 } | |
| 2612 | |
| 2613 /* Allow "NFA_MOPEN" as a valid postfix representation for | |
| 2614 * the empty regexp "". In this case, the NFA will be | |
| 2615 * NFA_MOPEN -> NFA_MCLOSE. Note that this also allows | |
| 2616 * empty groups of parenthesis, and empty mbyte chars */ | |
| 2617 if (stackp == stack) | |
| 2618 { | |
| 2619 s = new_state(mopen, NULL, NULL); | |
| 2620 if (s == NULL) | |
| 4484 | 2621 goto theend; |
| 4444 | 2622 s1 = new_state(mclose, NULL, NULL); |
| 2623 if (s1 == NULL) | |
| 4484 | 2624 goto theend; |
| 4444 | 2625 patch(list1(&s->out), s1); |
| 2626 PUSH(frag(s, list1(&s1->out))); | |
| 2627 break; | |
| 2628 } | |
| 2629 | |
| 2630 /* At least one node was emitted before NFA_MOPEN, so | |
| 2631 * at least one node will be between NFA_MOPEN and NFA_MCLOSE */ | |
| 2632 e = POP(); | |
| 2633 s = new_state(mopen, e.start, NULL); /* `(' */ | |
| 2634 if (s == NULL) | |
| 4484 | 2635 goto theend; |
| 4444 | 2636 |
| 2637 s1 = new_state(mclose, NULL, NULL); /* `)' */ | |
| 2638 if (s1 == NULL) | |
| 4484 | 2639 goto theend; |
| 4444 | 2640 patch(e.out, s1); |
| 2641 | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2642 #ifdef FEAT_MBYTE |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2643 if (mopen == NFA_COMPOSING) |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2644 /* COMPOSING->out1 = END_COMPOSING */ |
| 4444 | 2645 patch(list1(&s->out1), s1); |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2646 #endif |
| 4444 | 2647 |
| 2648 PUSH(frag(s, list1(&s1->out))); | |
| 2649 break; | |
| 2650 | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2651 case NFA_BACKREF1: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2652 case NFA_BACKREF2: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2653 case NFA_BACKREF3: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2654 case NFA_BACKREF4: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2655 case NFA_BACKREF5: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2656 case NFA_BACKREF6: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2657 case NFA_BACKREF7: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2658 case NFA_BACKREF8: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2659 case NFA_BACKREF9: |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2660 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2661 case NFA_ZREF1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2662 case NFA_ZREF2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2663 case NFA_ZREF3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2664 case NFA_ZREF4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2665 case NFA_ZREF5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2666 case NFA_ZREF6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2667 case NFA_ZREF7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2668 case NFA_ZREF8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2669 case NFA_ZREF9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2670 #endif |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2671 if (nfa_calc_size == TRUE) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2672 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2673 nstate += 2; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2674 break; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2675 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2676 s = new_state(*p, NULL, NULL); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2677 if (s == NULL) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2678 goto theend; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2679 s1 = new_state(NFA_SKIP, NULL, NULL); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2680 if (s1 == NULL) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2681 goto theend; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2682 patch(list1(&s->out), s1); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2683 PUSH(frag(s, list1(&s1->out))); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2684 break; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2685 |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2686 case NFA_LNUM: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2687 case NFA_LNUM_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2688 case NFA_LNUM_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2689 case NFA_VCOL: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2690 case NFA_VCOL_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2691 case NFA_VCOL_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2692 case NFA_COL: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2693 case NFA_COL_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2694 case NFA_COL_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2695 if (nfa_calc_size == TRUE) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2696 { |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2697 nstate += 1; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2698 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2699 } |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2700 e1 = POP(); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2701 s = new_state(*p, NULL, NULL); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2702 if (s == NULL) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2703 goto theend; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2704 s->val = e1.start->c; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2705 PUSH(frag(s, list1(&s->out))); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2706 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2707 |
| 4444 | 2708 case NFA_ZSTART: |
| 2709 case NFA_ZEND: | |
| 2710 default: | |
| 2711 /* Operands */ | |
| 2712 if (nfa_calc_size == TRUE) | |
| 2713 { | |
| 4458 | 2714 nstate++; |
| 4444 | 2715 break; |
| 2716 } | |
| 2717 s = new_state(*p, NULL, NULL); | |
| 2718 if (s == NULL) | |
| 4484 | 2719 goto theend; |
| 4444 | 2720 PUSH(frag(s, list1(&s->out))); |
| 2721 break; | |
| 2722 | |
| 2723 } /* switch(*p) */ | |
| 2724 | |
| 2725 } /* for(p = postfix; *p; ++p) */ | |
| 2726 | |
| 2727 if (nfa_calc_size == TRUE) | |
| 2728 { | |
| 4458 | 2729 nstate++; |
| 4484 | 2730 goto theend; /* Return value when counting size is ignored anyway */ |
| 4444 | 2731 } |
| 2732 | |
| 2733 e = POP(); | |
| 2734 if (stackp != stack) | |
| 2735 EMSG_RET_NULL(_("E875: (NFA regexp) (While converting from postfix to NFA), too many states left on stack")); | |
| 2736 | |
| 2737 if (istate >= nstate) | |
| 2738 EMSG_RET_NULL(_("E876: (NFA regexp) Not enough space to store the whole NFA ")); | |
| 2739 | |
| 2740 matchstate = &state_ptr[istate++]; /* the match state */ | |
| 2741 matchstate->c = NFA_MATCH; | |
| 2742 matchstate->out = matchstate->out1 = NULL; | |
| 2743 | |
| 2744 patch(e.out, matchstate); | |
| 4484 | 2745 ret = e.start; |
| 2746 | |
| 2747 theend: | |
| 2748 vim_free(stack); | |
| 2749 return ret; | |
| 4444 | 2750 |
| 2751 #undef POP1 | |
| 2752 #undef PUSH1 | |
| 2753 #undef POP2 | |
| 2754 #undef PUSH2 | |
| 2755 #undef POP | |
| 2756 #undef PUSH | |
| 2757 } | |
| 2758 | |
| 2759 /**************************************************************** | |
| 2760 * NFA execution code. | |
| 2761 ****************************************************************/ | |
| 2762 | |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2763 typedef struct |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2764 { |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2765 int in_use; /* number of subexpr with useful info */ |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2766 |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2767 /* When REG_MULTI is TRUE list.multi is used, otherwise list.line. */ |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2768 union |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2769 { |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2770 struct multipos |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2771 { |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2772 lpos_T start; |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2773 lpos_T end; |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2774 } multi[NSUBEXP]; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2775 struct linepos |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2776 { |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2777 char_u *start; |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2778 char_u *end; |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2779 } line[NSUBEXP]; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2780 } list; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2781 } regsub_T; |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2782 |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2783 typedef struct |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2784 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2785 regsub_T norm; /* \( .. \) matches */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2786 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2787 regsub_T synt; /* \z( .. \) matches */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2788 #endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2789 } regsubs_T; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2790 |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2791 /* nfa_thread_T contains execution information of a NFA state */ |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2792 typedef struct |
| 4444 | 2793 { |
| 2794 nfa_state_T *state; | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2795 int count; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2796 regsubs_T subs; /* submatch info, only party used */ |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2797 } nfa_thread_T; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2798 |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2799 /* nfa_list_T contains the alternative NFA execution states. */ |
| 4444 | 2800 typedef struct |
| 2801 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2802 nfa_thread_T *t; /* allocated array of states */ |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2803 int n; /* nr of states currently in "t" */ |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2804 int len; /* max nr of states in "t" */ |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2805 int id; /* ID of the list */ |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2806 } nfa_list_T; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2807 |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2808 #ifdef ENABLE_LOG |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2809 static void log_subsexpr __ARGS((regsubs_T *subs)); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2810 static void log_subexpr __ARGS((regsub_T *sub)); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2811 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2812 static void |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2813 log_subsexpr(subs) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2814 regsubs_T *subs; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2815 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2816 log_subexpr(&subs->norm); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2817 # ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2818 log_subexpr(&subs->synt); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2819 # endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2820 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2821 |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2822 static void |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2823 log_subexpr(sub) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2824 regsub_T *sub; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2825 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2826 int j; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2827 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2828 for (j = 0; j < sub->in_use; j++) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2829 if (REG_MULTI) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2830 fprintf(log_fd, "\n *** group %d, start: c=%d, l=%d, end: c=%d, l=%d", |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2831 j, |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2832 sub->list.multi[j].start.col, |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2833 (int)sub->list.multi[j].start.lnum, |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2834 sub->list.multi[j].end.col, |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2835 (int)sub->list.multi[j].end.lnum); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2836 else |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2837 fprintf(log_fd, "\n *** group %d, start: \"%s\", end: \"%s\"", |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2838 j, |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2839 (char *)sub->list.line[j].start, |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2840 (char *)sub->list.line[j].end); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2841 fprintf(log_fd, "\n"); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2842 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2843 #endif |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2844 |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2845 /* Used during execution: whether a match has been found. */ |
|
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2846 static int nfa_match; |
|
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2847 |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2848 static void clear_sub __ARGS((regsub_T *sub)); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2849 static void copy_sub __ARGS((regsub_T *to, regsub_T *from)); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2850 static void copy_sub_off __ARGS((regsub_T *to, regsub_T *from)); |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2851 static int sub_equal __ARGS((regsub_T *sub1, regsub_T *sub2)); |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2852 static void addstate __ARGS((nfa_list_T *l, nfa_state_T *state, regsubs_T *subs, int off)); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2853 static void addstate_here __ARGS((nfa_list_T *l, nfa_state_T *state, regsubs_T *subs, int *ip)); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2854 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2855 static void |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2856 clear_sub(sub) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2857 regsub_T *sub; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2858 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2859 if (REG_MULTI) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2860 /* Use 0xff to set lnum to -1 */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2861 vim_memset(sub->list.multi, 0xff, |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2862 sizeof(struct multipos) * nfa_nsubexpr); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2863 else |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2864 vim_memset(sub->list.line, 0, sizeof(struct linepos) * nfa_nsubexpr); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2865 sub->in_use = 0; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2866 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2867 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2868 /* |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2869 * Copy the submatches from "from" to "to". |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2870 */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2871 static void |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2872 copy_sub(to, from) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2873 regsub_T *to; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2874 regsub_T *from; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2875 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2876 to->in_use = from->in_use; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2877 if (from->in_use > 0) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2878 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2879 /* Copy the match start and end positions. */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2880 if (REG_MULTI) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2881 mch_memmove(&to->list.multi[0], |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2882 &from->list.multi[0], |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2883 sizeof(struct multipos) * from->in_use); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2884 else |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2885 mch_memmove(&to->list.line[0], |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2886 &from->list.line[0], |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2887 sizeof(struct linepos) * from->in_use); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2888 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2889 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2890 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2891 /* |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2892 * Like copy_sub() but exclude the main match. |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2893 */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2894 static void |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2895 copy_sub_off(to, from) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2896 regsub_T *to; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2897 regsub_T *from; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2898 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2899 if (to->in_use < from->in_use) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2900 to->in_use = from->in_use; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2901 if (from->in_use > 1) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2902 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2903 /* Copy the match start and end positions. */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2904 if (REG_MULTI) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2905 mch_memmove(&to->list.multi[1], |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2906 &from->list.multi[1], |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2907 sizeof(struct multipos) * (from->in_use - 1)); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2908 else |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2909 mch_memmove(&to->list.line[1], |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2910 &from->list.line[1], |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2911 sizeof(struct linepos) * (from->in_use - 1)); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2912 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2913 } |
| 4444 | 2914 |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2915 /* |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2916 * Return TRUE if "sub1" and "sub2" have the same positions. |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2917 */ |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2918 static int |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2919 sub_equal(sub1, sub2) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2920 regsub_T *sub1; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2921 regsub_T *sub2; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2922 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2923 int i; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2924 int todo; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2925 linenr_T s1, e1; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2926 linenr_T s2, e2; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2927 char_u *sp1, *ep1; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2928 char_u *sp2, *ep2; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2929 |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2930 todo = sub1->in_use > sub2->in_use ? sub1->in_use : sub2->in_use; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2931 if (REG_MULTI) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2932 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2933 for (i = 0; i < todo; ++i) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2934 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2935 if (i < sub1->in_use) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2936 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2937 s1 = sub1->list.multi[i].start.lnum; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2938 e1 = sub1->list.multi[i].end.lnum; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2939 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2940 else |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2941 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2942 s1 = 0; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2943 e1 = 0; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2944 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2945 if (i < sub2->in_use) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2946 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2947 s2 = sub2->list.multi[i].start.lnum; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2948 e2 = sub2->list.multi[i].end.lnum; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2949 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2950 else |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2951 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2952 s2 = 0; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2953 e2 = 0; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2954 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2955 if (s1 != s2 || e1 != e2) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2956 return FALSE; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2957 if (s1 != 0 && sub1->list.multi[i].start.col |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2958 != sub2->list.multi[i].start.col) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2959 return FALSE; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2960 if (e1 != 0 && sub1->list.multi[i].end.col |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2961 != sub2->list.multi[i].end.col) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2962 return FALSE; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2963 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2964 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2965 else |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2966 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2967 for (i = 0; i < todo; ++i) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2968 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2969 if (i < sub1->in_use) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2970 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2971 sp1 = sub1->list.line[i].start; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2972 ep1 = sub1->list.line[i].end; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2973 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2974 else |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2975 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2976 sp1 = NULL; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2977 ep1 = NULL; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2978 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2979 if (i < sub2->in_use) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2980 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2981 sp2 = sub2->list.line[i].start; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2982 ep2 = sub2->list.line[i].end; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2983 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2984 else |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2985 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2986 sp2 = NULL; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2987 ep2 = NULL; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2988 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2989 if (sp1 != sp2 || ep1 != ep2) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2990 return FALSE; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2991 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2992 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2993 |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2994 return TRUE; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2995 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2996 |
| 4444 | 2997 static void |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2998 addstate(l, state, subs, off) |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2999 nfa_list_T *l; /* runtime state list */ |
| 4444 | 3000 nfa_state_T *state; /* state to update */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3001 regsubs_T *subs; /* pointers to subexpressions */ |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3002 int off; /* byte offset, when -1 go to next line */ |
| 4444 | 3003 { |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3004 int subidx; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3005 nfa_thread_T *thread; |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3006 lpos_T save_lpos; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3007 int save_in_use; |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3008 char_u *save_ptr; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3009 int i; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3010 regsub_T *sub; |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3011 #ifdef ENABLE_LOG |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3012 int did_print = FALSE; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3013 #endif |
| 4444 | 3014 |
| 3015 if (l == NULL || state == NULL) | |
| 3016 return; | |
| 3017 | |
| 3018 switch (state->c) | |
| 3019 { | |
| 3020 case NFA_SPLIT: | |
| 3021 case NFA_NOT: | |
| 3022 case NFA_NOPEN: | |
| 3023 case NFA_NCLOSE: | |
| 3024 case NFA_MCLOSE: | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3025 case NFA_MCLOSE1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3026 case NFA_MCLOSE2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3027 case NFA_MCLOSE3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3028 case NFA_MCLOSE4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3029 case NFA_MCLOSE5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3030 case NFA_MCLOSE6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3031 case NFA_MCLOSE7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3032 case NFA_MCLOSE8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3033 case NFA_MCLOSE9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3034 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3035 case NFA_ZCLOSE: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3036 case NFA_ZCLOSE1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3037 case NFA_ZCLOSE2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3038 case NFA_ZCLOSE3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3039 case NFA_ZCLOSE4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3040 case NFA_ZCLOSE5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3041 case NFA_ZCLOSE6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3042 case NFA_ZCLOSE7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3043 case NFA_ZCLOSE8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3044 case NFA_ZCLOSE9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3045 #endif |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3046 /* These nodes are not added themselves but their "out" and/or |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3047 * "out1" may be added below. */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3048 break; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3049 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3050 case NFA_MOPEN: |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3051 case NFA_MOPEN1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3052 case NFA_MOPEN2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3053 case NFA_MOPEN3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3054 case NFA_MOPEN4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3055 case NFA_MOPEN5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3056 case NFA_MOPEN6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3057 case NFA_MOPEN7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3058 case NFA_MOPEN8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3059 case NFA_MOPEN9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3060 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3061 case NFA_ZOPEN: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3062 case NFA_ZOPEN1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3063 case NFA_ZOPEN2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3064 case NFA_ZOPEN3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3065 case NFA_ZOPEN4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3066 case NFA_ZOPEN5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3067 case NFA_ZOPEN6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3068 case NFA_ZOPEN7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3069 case NFA_ZOPEN8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3070 case NFA_ZOPEN9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3071 #endif |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3072 /* These nodes do not need to be added, but we need to bail out |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3073 * when it was tried to be added to this list before. */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3074 if (state->lastlist == l->id) |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3075 goto skip_add; |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3076 state->lastlist = l->id; |
| 4444 | 3077 break; |
| 3078 | |
| 3079 default: | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3080 if (state->lastlist == l->id) |
| 4444 | 3081 { |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3082 /* This state is already in the list, don't add it again, |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3083 * unless it is an MOPEN that is used for a backreference. */ |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3084 if (!nfa_has_backref) |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3085 { |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3086 skip_add: |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3087 #ifdef ENABLE_LOG |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3088 nfa_set_code(state->c); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3089 fprintf(log_fd, "> Not adding state %d to list %d. char %d: %s\n", |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3090 abs(state->id), l->id, state->c, code); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3091 #endif |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3092 return; |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3093 } |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3094 |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3095 /* See if the same state is already in the list with the same |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3096 * positions. */ |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3097 for (i = 0; i < l->n; ++i) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3098 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3099 thread = &l->t[i]; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3100 if (thread->state->id == state->id |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3101 && sub_equal(&thread->subs.norm, &subs->norm) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3102 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3103 && sub_equal(&thread->subs.synt, &subs->synt) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3104 #endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3105 ) |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3106 goto skip_add; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3107 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3108 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3109 |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3110 /* when there are backreferences the number of states may be (a |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3111 * lot) bigger */ |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3112 if (nfa_has_backref && l->n == l->len) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3113 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3114 int newlen = l->len * 3 / 2 + 50; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3115 |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3116 l->t = vim_realloc(l->t, newlen * sizeof(nfa_thread_T)); |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3117 l->len = newlen; |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3118 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3119 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3120 /* add the state to the list */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3121 state->lastlist = l->id; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3122 thread = &l->t[l->n++]; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3123 thread->state = state; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3124 copy_sub(&thread->subs.norm, &subs->norm); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3125 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3126 copy_sub(&thread->subs.synt, &subs->synt); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3127 #endif |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3128 #ifdef ENABLE_LOG |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3129 { |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3130 int col; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3131 |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3132 if (thread->sub.in_use <= 0) |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3133 col = -1; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3134 else if (REG_MULTI) |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3135 col = thread->sub.list.multi[0].start.col; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3136 else |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3137 col = (int)(thread->sub.list.line[0].start - regline); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3138 nfa_set_code(state->c); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3139 fprintf(log_fd, "> Adding state %d to list %d. char %d: %s (start col %d)\n", |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3140 abs(state->id), l->id, state->c, code, col); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3141 did_print = TRUE; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3142 } |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3143 #endif |
| 4444 | 3144 } |
| 3145 | |
| 3146 #ifdef ENABLE_LOG | |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3147 if (!did_print) |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3148 { |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3149 int col; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3150 |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3151 if (sub->in_use <= 0) |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3152 col = -1; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3153 else if (REG_MULTI) |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3154 col = sub->list.multi[0].start.col; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3155 else |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3156 col = (int)(sub->list.line[0].start - regline); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3157 nfa_set_code(state->c); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3158 fprintf(log_fd, "> Processing state %d for list %d. char %d: %s (start col %d)\n", |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3159 abs(state->id), l->id, state->c, code, col); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3160 } |
| 4444 | 3161 #endif |
| 3162 switch (state->c) | |
| 3163 { | |
| 3164 case NFA_MATCH: | |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3165 nfa_match = TRUE; |
| 4444 | 3166 break; |
| 3167 | |
| 3168 case NFA_SPLIT: | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3169 /* order matters here */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3170 addstate(l, state->out, subs, off); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3171 addstate(l, state->out1, subs, off); |
| 4444 | 3172 break; |
| 3173 | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3174 case NFA_SKIP_CHAR: |
| 4444 | 3175 case NFA_NOPEN: |
| 3176 case NFA_NCLOSE: | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3177 addstate(l, state->out, subs, off); |
| 4444 | 3178 break; |
| 3179 | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3180 case NFA_MOPEN: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3181 case NFA_MOPEN1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3182 case NFA_MOPEN2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3183 case NFA_MOPEN3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3184 case NFA_MOPEN4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3185 case NFA_MOPEN5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3186 case NFA_MOPEN6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3187 case NFA_MOPEN7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3188 case NFA_MOPEN8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3189 case NFA_MOPEN9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3190 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3191 case NFA_ZOPEN: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3192 case NFA_ZOPEN1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3193 case NFA_ZOPEN2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3194 case NFA_ZOPEN3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3195 case NFA_ZOPEN4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3196 case NFA_ZOPEN5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3197 case NFA_ZOPEN6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3198 case NFA_ZOPEN7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3199 case NFA_ZOPEN8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3200 case NFA_ZOPEN9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3201 #endif |
| 4444 | 3202 case NFA_ZSTART: |
| 3203 if (state->c == NFA_ZSTART) | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3204 { |
| 4444 | 3205 subidx = 0; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3206 sub = &subs->norm; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3207 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3208 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3209 else if (state->c >= NFA_ZOPEN) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3210 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3211 subidx = state->c - NFA_ZOPEN; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3212 sub = &subs->synt; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3213 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3214 #endif |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3215 else |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3216 { |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3217 subidx = state->c - NFA_MOPEN; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3218 sub = &subs->norm; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3219 } |
| 4444 | 3220 |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3221 /* Set the position (with "off") in the subexpression. Save and |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3222 * restore it when it was in use. Otherwise fill any gap. */ |
|
4649
9f502d8d5165
updated for version 7.3.1072
Bram Moolenaar <bram@vim.org>
parents:
4647
diff
changeset
|
3223 save_ptr = NULL; |
| 4444 | 3224 if (REG_MULTI) |
| 3225 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3226 if (subidx < sub->in_use) |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3227 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3228 save_lpos = sub->list.multi[subidx].start; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3229 save_in_use = -1; |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3230 } |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3231 else |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3232 { |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3233 save_in_use = sub->in_use; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3234 for (i = sub->in_use; i < subidx; ++i) |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3235 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3236 sub->list.multi[i].start.lnum = -1; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3237 sub->list.multi[i].end.lnum = -1; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3238 } |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3239 sub->in_use = subidx + 1; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3240 } |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3241 if (off == -1) |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3242 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3243 sub->list.multi[subidx].start.lnum = reglnum + 1; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3244 sub->list.multi[subidx].start.col = 0; |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3245 } |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3246 else |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3247 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3248 sub->list.multi[subidx].start.lnum = reglnum; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3249 sub->list.multi[subidx].start.col = |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3250 (colnr_T)(reginput - regline + off); |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3251 } |
| 4444 | 3252 } |
| 3253 else | |
| 3254 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3255 if (subidx < sub->in_use) |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3256 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3257 save_ptr = sub->list.line[subidx].start; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3258 save_in_use = -1; |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3259 } |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3260 else |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3261 { |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3262 save_in_use = sub->in_use; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3263 for (i = sub->in_use; i < subidx; ++i) |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3264 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3265 sub->list.line[i].start = NULL; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3266 sub->list.line[i].end = NULL; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3267 } |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3268 sub->in_use = subidx + 1; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3269 } |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3270 sub->list.line[subidx].start = reginput + off; |
| 4444 | 3271 } |
| 3272 | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3273 addstate(l, state->out, subs, off); |
| 4444 | 3274 |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3275 if (save_in_use == -1) |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3276 { |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3277 if (REG_MULTI) |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3278 sub->list.multi[subidx].start = save_lpos; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3279 else |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3280 sub->list.line[subidx].start = save_ptr; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3281 } |
| 4444 | 3282 else |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3283 sub->in_use = save_in_use; |
| 4444 | 3284 break; |
| 3285 | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3286 case NFA_MCLOSE: |
|
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3287 if (nfa_has_zend) |
| 4444 | 3288 { |
|
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
3289 /* Do not overwrite the position set by \ze. If no \ze |
|
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
3290 * encountered end will be set in nfa_regtry(). */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3291 addstate(l, state->out, subs, off); |
| 4444 | 3292 break; |
| 3293 } | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3294 case NFA_MCLOSE1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3295 case NFA_MCLOSE2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3296 case NFA_MCLOSE3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3297 case NFA_MCLOSE4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3298 case NFA_MCLOSE5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3299 case NFA_MCLOSE6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3300 case NFA_MCLOSE7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3301 case NFA_MCLOSE8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3302 case NFA_MCLOSE9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3303 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3304 case NFA_ZCLOSE: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3305 case NFA_ZCLOSE1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3306 case NFA_ZCLOSE2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3307 case NFA_ZCLOSE3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3308 case NFA_ZCLOSE4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3309 case NFA_ZCLOSE5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3310 case NFA_ZCLOSE6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3311 case NFA_ZCLOSE7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3312 case NFA_ZCLOSE8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3313 case NFA_ZCLOSE9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3314 #endif |
| 4444 | 3315 case NFA_ZEND: |
| 3316 if (state->c == NFA_ZEND) | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3317 { |
| 4444 | 3318 subidx = 0; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3319 sub = &subs->norm; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3320 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3321 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3322 else if (state->c >= NFA_ZCLOSE) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3323 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3324 subidx = state->c - NFA_ZCLOSE; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3325 sub = &subs->synt; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3326 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3327 #endif |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3328 else |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3329 { |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3330 subidx = state->c - NFA_MCLOSE; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3331 sub = &subs->norm; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3332 } |
| 4444 | 3333 |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3334 /* We don't fill in gaps here, there must have been an MOPEN that |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3335 * has done that. */ |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3336 save_in_use = sub->in_use; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3337 if (sub->in_use <= subidx) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3338 sub->in_use = subidx + 1; |
| 4444 | 3339 if (REG_MULTI) |
| 3340 { | |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3341 save_lpos = sub->list.multi[subidx].end; |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3342 if (off == -1) |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3343 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3344 sub->list.multi[subidx].end.lnum = reglnum + 1; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3345 sub->list.multi[subidx].end.col = 0; |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3346 } |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3347 else |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3348 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3349 sub->list.multi[subidx].end.lnum = reglnum; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3350 sub->list.multi[subidx].end.col = |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3351 (colnr_T)(reginput - regline + off); |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3352 } |
| 4444 | 3353 } |
| 3354 else | |
| 3355 { | |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3356 save_ptr = sub->list.line[subidx].end; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3357 sub->list.line[subidx].end = reginput + off; |
| 4444 | 3358 } |
| 3359 | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3360 addstate(l, state->out, subs, off); |
| 4444 | 3361 |
| 3362 if (REG_MULTI) | |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3363 sub->list.multi[subidx].end = save_lpos; |
| 4444 | 3364 else |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3365 sub->list.line[subidx].end = save_ptr; |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3366 sub->in_use = save_in_use; |
| 4444 | 3367 break; |
| 3368 } | |
| 3369 } | |
| 3370 | |
| 3371 /* | |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3372 * Like addstate(), but the new state(s) are put at position "*ip". |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3373 * Used for zero-width matches, next state to use is the added one. |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3374 * This makes sure the order of states to be tried does not change, which |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3375 * matters for alternatives. |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3376 */ |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3377 static void |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3378 addstate_here(l, state, subs, ip) |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3379 nfa_list_T *l; /* runtime state list */ |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3380 nfa_state_T *state; /* state to update */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3381 regsubs_T *subs; /* pointers to subexpressions */ |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3382 int *ip; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3383 { |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3384 int tlen = l->n; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3385 int count; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3386 int i = *ip; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3387 |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3388 /* first add the state(s) at the end, so that we know how many there are */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3389 addstate(l, state, subs, 0); |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3390 |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3391 /* when "*ip" was at the end of the list, nothing to do */ |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3392 if (i + 1 == tlen) |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3393 return; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3394 |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3395 /* re-order to put the new state at the current position */ |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3396 count = l->n - tlen; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3397 if (count == 1) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3398 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3399 /* overwrite the current state */ |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3400 l->t[i] = l->t[l->n - 1]; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3401 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3402 else if (count > 1) |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3403 { |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3404 /* make space for new states, then move them from the |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3405 * end to the current position */ |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3406 mch_memmove(&(l->t[i + count]), |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3407 &(l->t[i + 1]), |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3408 sizeof(nfa_thread_T) * (l->n - i - 1)); |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3409 mch_memmove(&(l->t[i]), |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3410 &(l->t[l->n - 1]), |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3411 sizeof(nfa_thread_T) * count); |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3412 } |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3413 --l->n; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3414 *ip = i - 1; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3415 } |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3416 |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3417 /* |
| 4444 | 3418 * Check character class "class" against current character c. |
| 3419 */ | |
| 3420 static int | |
| 3421 check_char_class(class, c) | |
| 3422 int class; | |
| 3423 int c; | |
| 3424 { | |
| 3425 switch (class) | |
| 3426 { | |
| 3427 case NFA_CLASS_ALNUM: | |
| 4464 | 3428 if (c >= 1 && c <= 255 && isalnum(c)) |
| 4444 | 3429 return OK; |
| 3430 break; | |
| 3431 case NFA_CLASS_ALPHA: | |
| 4464 | 3432 if (c >= 1 && c <= 255 && isalpha(c)) |
| 4444 | 3433 return OK; |
| 3434 break; | |
| 3435 case NFA_CLASS_BLANK: | |
| 3436 if (c == ' ' || c == '\t') | |
| 3437 return OK; | |
| 3438 break; | |
| 3439 case NFA_CLASS_CNTRL: | |
| 4464 | 3440 if (c >= 1 && c <= 255 && iscntrl(c)) |
| 4444 | 3441 return OK; |
| 3442 break; | |
| 3443 case NFA_CLASS_DIGIT: | |
| 3444 if (VIM_ISDIGIT(c)) | |
| 3445 return OK; | |
| 3446 break; | |
| 3447 case NFA_CLASS_GRAPH: | |
| 4464 | 3448 if (c >= 1 && c <= 255 && isgraph(c)) |
| 4444 | 3449 return OK; |
| 3450 break; | |
| 3451 case NFA_CLASS_LOWER: | |
| 3452 if (MB_ISLOWER(c)) | |
| 3453 return OK; | |
| 3454 break; | |
| 3455 case NFA_CLASS_PRINT: | |
| 3456 if (vim_isprintc(c)) | |
| 3457 return OK; | |
| 3458 break; | |
| 3459 case NFA_CLASS_PUNCT: | |
| 4464 | 3460 if (c >= 1 && c <= 255 && ispunct(c)) |
| 4444 | 3461 return OK; |
| 3462 break; | |
| 3463 case NFA_CLASS_SPACE: | |
| 3464 if ((c >=9 && c <= 13) || (c == ' ')) | |
| 3465 return OK; | |
| 3466 break; | |
| 3467 case NFA_CLASS_UPPER: | |
| 3468 if (MB_ISUPPER(c)) | |
| 3469 return OK; | |
| 3470 break; | |
| 3471 case NFA_CLASS_XDIGIT: | |
| 3472 if (vim_isxdigit(c)) | |
| 3473 return OK; | |
| 3474 break; | |
| 3475 case NFA_CLASS_TAB: | |
| 3476 if (c == '\t') | |
| 3477 return OK; | |
| 3478 break; | |
| 3479 case NFA_CLASS_RETURN: | |
| 3480 if (c == '\r') | |
| 3481 return OK; | |
| 3482 break; | |
| 3483 case NFA_CLASS_BACKSPACE: | |
| 3484 if (c == '\b') | |
| 3485 return OK; | |
| 3486 break; | |
| 3487 case NFA_CLASS_ESCAPE: | |
| 3488 if (c == '\033') | |
| 3489 return OK; | |
| 3490 break; | |
| 3491 | |
| 3492 default: | |
| 3493 /* should not be here :P */ | |
| 3494 EMSG_RET_FAIL(_("E877: (NFA regexp) Invalid character class ")); | |
| 3495 } | |
| 3496 return FAIL; | |
| 3497 } | |
| 3498 | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3499 static int match_backref __ARGS((regsub_T *sub, int subidx, int *bytelen)); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3500 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3501 /* |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3502 * Check for a match with subexpression "subidx". |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3503 * Return TRUE if it matches. |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3504 */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3505 static int |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3506 match_backref(sub, subidx, bytelen) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3507 regsub_T *sub; /* pointers to subexpressions */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3508 int subidx; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3509 int *bytelen; /* out: length of match in bytes */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3510 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3511 int len; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3512 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3513 if (sub->in_use <= subidx) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3514 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3515 retempty: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3516 /* backref was not set, match an empty string */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3517 *bytelen = 0; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3518 return TRUE; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3519 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3520 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3521 if (REG_MULTI) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3522 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3523 if (sub->list.multi[subidx].start.lnum < 0 |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3524 || sub->list.multi[subidx].end.lnum < 0) |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3525 goto retempty; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3526 /* TODO: line breaks */ |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3527 len = sub->list.multi[subidx].end.col |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3528 - sub->list.multi[subidx].start.col; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3529 if (cstrncmp(regline + sub->list.multi[subidx].start.col, |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3530 reginput, &len) == 0) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3531 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3532 *bytelen = len; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3533 return TRUE; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3534 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3535 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3536 else |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3537 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3538 if (sub->list.line[subidx].start == NULL |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3539 || sub->list.line[subidx].end == NULL) |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3540 goto retempty; |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3541 len = (int)(sub->list.line[subidx].end - sub->list.line[subidx].start); |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3542 if (cstrncmp(sub->list.line[subidx].start, reginput, &len) == 0) |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3543 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3544 *bytelen = len; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3545 return TRUE; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3546 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3547 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3548 return FALSE; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3549 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3550 |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3551 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3552 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3553 static int match_zref __ARGS((int subidx, int *bytelen)); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3554 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3555 /* |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3556 * Check for a match with \z subexpression "subidx". |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3557 * Return TRUE if it matches. |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3558 */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3559 static int |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3560 match_zref(subidx, bytelen) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3561 int subidx; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3562 int *bytelen; /* out: length of match in bytes */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3563 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3564 int len; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3565 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3566 cleanup_zsubexpr(); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3567 if (re_extmatch_in == NULL || re_extmatch_in->matches[subidx] == NULL) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3568 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3569 /* backref was not set, match an empty string */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3570 *bytelen = 0; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3571 return TRUE; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3572 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3573 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3574 len = (int)STRLEN(re_extmatch_in->matches[subidx]); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3575 if (cstrncmp(re_extmatch_in->matches[subidx], reginput, &len) == 0) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3576 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3577 *bytelen = len; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3578 return TRUE; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3579 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3580 return FALSE; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3581 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3582 #endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3583 |
| 4444 | 3584 /* |
| 3585 * Set all NFA nodes' list ID equal to -1. | |
| 3586 */ | |
| 3587 static void | |
| 3588 nfa_set_neg_listids(start) | |
| 3589 nfa_state_T *start; | |
| 3590 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3591 if (start != NULL && start->lastlist >= 0) |
| 4444 | 3592 { |
| 3593 start->lastlist = -1; | |
| 3594 nfa_set_neg_listids(start->out); | |
| 3595 nfa_set_neg_listids(start->out1); | |
| 3596 } | |
| 3597 } | |
| 3598 | |
| 3599 /* | |
| 3600 * Set all NFA nodes' list ID equal to 0. | |
| 3601 */ | |
| 3602 static void | |
| 3603 nfa_set_null_listids(start) | |
| 3604 nfa_state_T *start; | |
| 3605 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3606 if (start != NULL && start->lastlist == -1) |
| 4444 | 3607 { |
| 3608 start->lastlist = 0; | |
| 3609 nfa_set_null_listids(start->out); | |
| 3610 nfa_set_null_listids(start->out1); | |
| 3611 } | |
| 3612 } | |
| 3613 | |
| 3614 /* | |
| 3615 * Save list IDs for all NFA states in "list". | |
| 3616 */ | |
| 3617 static void | |
| 3618 nfa_save_listids(start, list) | |
| 3619 nfa_state_T *start; | |
| 3620 int *list; | |
| 3621 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3622 if (start != NULL && start->lastlist != -1) |
| 4444 | 3623 { |
| 3624 list[abs(start->id)] = start->lastlist; | |
| 3625 start->lastlist = -1; | |
| 3626 nfa_save_listids(start->out, list); | |
| 3627 nfa_save_listids(start->out1, list); | |
| 3628 } | |
| 3629 } | |
| 3630 | |
| 3631 /* | |
| 3632 * Restore list IDs from "list" to all NFA states. | |
| 3633 */ | |
| 3634 static void | |
| 3635 nfa_restore_listids(start, list) | |
| 3636 nfa_state_T *start; | |
| 3637 int *list; | |
| 3638 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3639 if (start != NULL && start->lastlist == -1) |
| 4444 | 3640 { |
| 3641 start->lastlist = list[abs(start->id)]; | |
| 3642 nfa_restore_listids(start->out, list); | |
| 3643 nfa_restore_listids(start->out1, list); | |
| 3644 } | |
| 3645 } | |
| 3646 | |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3647 static int |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3648 nfa_re_num_cmp(val, op, pos) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3649 long_u val; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3650 int op; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3651 long_u pos; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3652 { |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3653 if (op == 1) return pos > val; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3654 if (op == 2) return pos < val; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3655 return val == pos; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3656 } |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3657 |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3658 static int nfa_regmatch __ARGS((nfa_state_T *start, regsubs_T *submatch, regsubs_T *m, save_se_T *endp)); |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3659 |
| 4444 | 3660 /* |
| 3661 * Main matching routine. | |
| 3662 * | |
| 3663 * Run NFA to determine whether it matches reginput. | |
| 3664 * | |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3665 * When "endp" is not NULL it is a required end-of-match position. |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3666 * |
| 4444 | 3667 * Return TRUE if there is a match, FALSE otherwise. |
| 3668 * Note: Caller must ensure that: start != NULL. | |
| 3669 */ | |
| 3670 static int | |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3671 nfa_regmatch(start, submatch, m, endp) |
| 4444 | 3672 nfa_state_T *start; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3673 regsubs_T *submatch; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3674 regsubs_T *m; |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3675 save_se_T *endp; |
| 4444 | 3676 { |
| 3677 int result; | |
| 3678 int size = 0; | |
| 3679 int flag = 0; | |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3680 int go_to_nextline = FALSE; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3681 nfa_thread_T *t; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3682 nfa_list_T list[3]; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3683 nfa_list_T *listtbl[2][2]; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3684 nfa_list_T *ll; |
| 4444 | 3685 int listid = 1; |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3686 int listidx; |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3687 nfa_list_T *thislist; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3688 nfa_list_T *nextlist; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3689 nfa_list_T *neglist; |
| 4444 | 3690 int *listids = NULL; |
| 4460 | 3691 #ifdef NFA_REGEXP_DEBUG_LOG |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3692 FILE *debug = fopen(NFA_REGEXP_DEBUG_LOG, "a"); |
| 4444 | 3693 |
| 3694 if (debug == NULL) | |
| 3695 { | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3696 EMSG2(_("(NFA) COULD NOT OPEN %s !"), NFA_REGEXP_DEBUG_LOG); |
| 4444 | 3697 return FALSE; |
| 3698 } | |
| 3699 #endif | |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3700 nfa_match = FALSE; |
| 4444 | 3701 |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3702 /* Allocate memory for the lists of nodes. */ |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3703 size = (nstate + 1) * sizeof(nfa_thread_T); |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3704 list[0].t = (nfa_thread_T *)lalloc_clear(size, TRUE); |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3705 list[0].len = nstate + 1; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3706 list[1].t = (nfa_thread_T *)lalloc_clear(size, TRUE); |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3707 list[1].len = nstate + 1; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3708 list[2].t = (nfa_thread_T *)lalloc_clear(size, TRUE); |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3709 list[2].len = nstate + 1; |
| 4444 | 3710 if (list[0].t == NULL || list[1].t == NULL || list[2].t == NULL) |
| 3711 goto theend; | |
| 3712 | |
| 3713 #ifdef ENABLE_LOG | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3714 log_fd = fopen(NFA_REGEXP_RUN_LOG, "a"); |
| 4444 | 3715 if (log_fd != NULL) |
| 3716 { | |
| 3717 fprintf(log_fd, "**********************************\n"); | |
| 3718 nfa_set_code(start->c); | |
| 3719 fprintf(log_fd, " RUNNING nfa_regmatch() starting with state %d, code %s\n", | |
| 3720 abs(start->id), code); | |
| 3721 fprintf(log_fd, "**********************************\n"); | |
| 3722 } | |
| 3723 else | |
| 3724 { | |
| 3725 EMSG(_("Could not open temporary log file for writing, displaying on stderr ... ")); | |
| 3726 log_fd = stderr; | |
| 3727 } | |
| 3728 #endif | |
| 3729 | |
| 3730 thislist = &list[0]; | |
| 3731 thislist->n = 0; | |
| 3732 nextlist = &list[1]; | |
| 3733 nextlist->n = 0; | |
| 3734 neglist = &list[2]; | |
| 3735 neglist->n = 0; | |
| 3736 #ifdef ENABLE_LOG | |
| 3737 fprintf(log_fd, "(---) STARTSTATE\n"); | |
| 3738 #endif | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3739 thislist->id = listid; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3740 addstate(thislist, start, m, 0); |
| 4444 | 3741 |
| 3742 /* There are two cases when the NFA advances: 1. input char matches the | |
| 3743 * NFA node and 2. input char does not match the NFA node, but the next | |
| 3744 * node is NFA_NOT. The following macro calls addstate() according to | |
| 3745 * these rules. It is used A LOT, so use the "listtbl" table for speed */ | |
| 3746 listtbl[0][0] = NULL; | |
| 3747 listtbl[0][1] = neglist; | |
| 3748 listtbl[1][0] = nextlist; | |
| 3749 listtbl[1][1] = NULL; | |
| 3750 #define ADD_POS_NEG_STATE(node) \ | |
| 3751 ll = listtbl[result ? 1 : 0][node->negated]; \ | |
| 3752 if (ll != NULL) \ | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3753 addstate(ll, node->out , &t->subs, clen); |
| 4444 | 3754 |
| 3755 | |
| 3756 /* | |
| 3757 * Run for each character. | |
| 3758 */ | |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3759 for (;;) |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3760 { |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3761 int curc; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3762 int clen; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3763 |
| 4444 | 3764 #ifdef FEAT_MBYTE |
| 3765 if (has_mbyte) | |
| 3766 { | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3767 curc = (*mb_ptr2char)(reginput); |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3768 clen = (*mb_ptr2len)(reginput); |
| 4444 | 3769 } |
| 3770 else | |
| 3771 #endif | |
| 3772 { | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3773 curc = *reginput; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3774 clen = 1; |
| 4444 | 3775 } |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3776 if (curc == NUL) |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3777 { |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3778 clen = 0; |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3779 go_to_nextline = FALSE; |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3780 } |
| 4444 | 3781 |
| 3782 /* swap lists */ | |
| 3783 thislist = &list[flag]; | |
| 3784 nextlist = &list[flag ^= 1]; | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3785 nextlist->n = 0; /* clear nextlist */ |
| 4444 | 3786 listtbl[1][0] = nextlist; |
| 3787 ++listid; | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3788 thislist->id = listid; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3789 nextlist->id = listid + 1; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3790 neglist->id = listid + 1; |
| 4444 | 3791 |
| 3792 #ifdef ENABLE_LOG | |
| 3793 fprintf(log_fd, "------------------------------------------\n"); | |
| 3794 fprintf(log_fd, ">>> Reginput is \"%s\"\n", reginput); | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3795 fprintf(log_fd, ">>> Advanced one character ... Current char is %c (code %d) \n", curc, (int)curc); |
| 4444 | 3796 fprintf(log_fd, ">>> Thislist has %d states available: ", thislist->n); |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3797 { |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3798 int i; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3799 |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3800 for (i = 0; i < thislist->n; i++) |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3801 fprintf(log_fd, "%d ", abs(thislist->t[i].state->id)); |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3802 } |
| 4444 | 3803 fprintf(log_fd, "\n"); |
| 3804 #endif | |
| 3805 | |
| 4460 | 3806 #ifdef NFA_REGEXP_DEBUG_LOG |
| 4444 | 3807 fprintf(debug, "\n-------------------\n"); |
| 3808 #endif | |
| 4480 | 3809 /* |
| 3810 * If the state lists are empty we can stop. | |
| 3811 */ | |
| 3812 if (thislist->n == 0 && neglist->n == 0) | |
| 3813 break; | |
| 4444 | 3814 |
| 3815 /* compute nextlist */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3816 for (listidx = 0; listidx < thislist->n || neglist->n > 0; ++listidx) |
| 4444 | 3817 { |
| 3818 if (neglist->n > 0) | |
| 3819 { | |
| 3820 t = &neglist->t[0]; | |
| 4468 | 3821 neglist->n--; |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3822 listidx--; |
| 4444 | 3823 } |
| 3824 else | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3825 t = &thislist->t[listidx]; |
| 4444 | 3826 |
| 4460 | 3827 #ifdef NFA_REGEXP_DEBUG_LOG |
| 4444 | 3828 nfa_set_code(t->state->c); |
| 3829 fprintf(debug, "%s, ", code); | |
| 3830 #endif | |
| 3831 #ifdef ENABLE_LOG | |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3832 { |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3833 int col; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3834 |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3835 if (t->sub.in_use <= 0) |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3836 col = -1; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3837 else if (REG_MULTI) |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3838 col = t->sub.list.multi[0].start.col; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3839 else |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3840 col = (int)(t->sub.list.line[0].start - regline); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3841 nfa_set_code(t->state->c); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3842 fprintf(log_fd, "(%d) char %d %s (start col %d) ... \n", |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3843 abs(t->state->id), (int)t->state->c, code, col); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3844 } |
| 4444 | 3845 #endif |
| 3846 | |
| 3847 /* | |
| 3848 * Handle the possible codes of the current state. | |
| 3849 * The most important is NFA_MATCH. | |
| 3850 */ | |
| 3851 switch (t->state->c) | |
| 3852 { | |
| 3853 case NFA_MATCH: | |
|
4567
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
3854 { |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3855 nfa_match = TRUE; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3856 copy_sub(&submatch->norm, &t->subs.norm); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3857 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3858 copy_sub(&submatch->synt, &t->subs.synt); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3859 #endif |
| 4444 | 3860 #ifdef ENABLE_LOG |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3861 log_subsexpr(&t->subs); |
| 4444 | 3862 #endif |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3863 /* Found the left-most longest match, do not look at any other |
|
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3864 * states at this position. When the list of states is going |
|
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3865 * to be empty quit without advancing, so that "reginput" is |
|
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3866 * correct. */ |
|
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3867 if (nextlist->n == 0 && neglist->n == 0) |
|
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3868 clen = 0; |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3869 goto nextchar; |
|
4567
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
3870 } |
| 4444 | 3871 |
| 3872 case NFA_END_INVISIBLE: | |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3873 /* This is only encountered after a NFA_START_INVISIBLE or |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3874 * NFA_START_INVISIBLE_BEFORE node. |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3875 * They surround a zero-width group, used with "\@=", "\&", |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3876 * "\@!", "\@<=" and "\@<!". |
| 4444 | 3877 * If we got here, it means that the current "invisible" group |
| 3878 * finished successfully, so return control to the parent | |
| 3879 * nfa_regmatch(). Submatches are stored in *m, and used in | |
| 3880 * the parent call. */ | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3881 if (start->c == NFA_MOPEN) |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3882 /* TODO: do we ever get here? */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3883 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
| 4444 | 3884 else |
| 3885 { | |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3886 #ifdef ENABLE_LOG |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3887 if (endp != NULL) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3888 { |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3889 if (REG_MULTI) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3890 fprintf(log_fd, "Current lnum: %d, endp lnum: %d; current col: %d, endp col: %d\n", |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3891 (int)reglnum, |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3892 (int)endp->se_u.pos.lnum, |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3893 (int)(reginput - regline), |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3894 endp->se_u.pos.col); |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3895 else |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3896 fprintf(log_fd, "Current col: %d, endp col: %d\n", |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3897 (int)(reginput - regline), |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3898 (int)(endp->se_u.ptr - reginput)); |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3899 } |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3900 #endif |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3901 /* It's only a match if it ends at "endp" */ |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3902 if (endp != NULL && (REG_MULTI |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3903 ? (reglnum != endp->se_u.pos.lnum |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3904 || (int)(reginput - regline) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3905 != endp->se_u.pos.col) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3906 : reginput != endp->se_u.ptr)) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3907 break; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3908 |
|
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
3909 /* do not set submatches for \@! */ |
|
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
3910 if (!t->state->negated) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3911 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3912 copy_sub(&m->norm, &t->subs.norm); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3913 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3914 copy_sub(&m->synt, &t->subs.synt); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3915 #endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3916 } |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3917 nfa_match = TRUE; |
| 4444 | 3918 } |
| 3919 break; | |
| 3920 | |
| 3921 case NFA_START_INVISIBLE: | |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3922 case NFA_START_INVISIBLE_BEFORE: |
|
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3923 { |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3924 char_u *save_reginput = reginput; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3925 char_u *save_regline = regline; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3926 int save_reglnum = reglnum; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3927 int save_nfa_match = nfa_match; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3928 save_se_T endpos; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3929 save_se_T *endposp = NULL; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3930 |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3931 if (t->state->c == NFA_START_INVISIBLE_BEFORE) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3932 { |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3933 /* The recursive match must end at the current position. */ |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3934 endposp = &endpos; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3935 if (REG_MULTI) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3936 { |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3937 endpos.se_u.pos.col = (int)(reginput - regline); |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3938 endpos.se_u.pos.lnum = reglnum; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3939 } |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3940 else |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3941 endpos.se_u.ptr = reginput; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3942 |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3943 /* Go back the specified number of bytes, or as far as the |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3944 * start of the previous line, to try matching "\@<=" or |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3945 * not matching "\@<!". |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3946 * TODO: This is very inefficient! Would be better to |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3947 * first check for a match with what follows. */ |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3948 if (t->state->val <= 0) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3949 { |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3950 if (REG_MULTI) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3951 { |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3952 regline = reg_getline(--reglnum); |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3953 if (regline == NULL) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3954 /* can't go before the first line */ |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3955 regline = reg_getline(++reglnum); |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3956 } |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3957 reginput = regline; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3958 } |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3959 else |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3960 { |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3961 if (REG_MULTI |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3962 && (int)(reginput - regline) < t->state->val) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3963 { |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3964 /* Not enough bytes in this line, go to end of |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3965 * previous line. */ |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3966 regline = reg_getline(--reglnum); |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3967 if (regline == NULL) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3968 { |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3969 /* can't go before the first line */ |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3970 regline = reg_getline(++reglnum); |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3971 reginput = regline; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3972 } |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3973 else |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3974 reginput = regline + STRLEN(regline); |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3975 } |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3976 if ((int)(reginput - regline) >= t->state->val) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3977 { |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3978 reginput -= t->state->val; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3979 #ifdef FEAT_MBYTE |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3980 if (has_mbyte) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3981 reginput -= mb_head_off(regline, reginput); |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3982 #endif |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3983 } |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3984 else |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3985 reginput = regline; |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3986 } |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3987 } |
|
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3988 |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3989 /* Call nfa_regmatch() to check if the current concat matches |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3990 * at this position. The concat ends with the node |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3991 * NFA_END_INVISIBLE */ |
| 4444 | 3992 if (listids == NULL) |
| 3993 { | |
|
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
3994 listids = (int *)lalloc(sizeof(int) * nstate, TRUE); |
| 4444 | 3995 if (listids == NULL) |
| 3996 { | |
| 3997 EMSG(_("E878: (NFA) Could not allocate memory for branch traversal!")); | |
| 3998 return 0; | |
| 3999 } | |
| 4000 } | |
| 4001 #ifdef ENABLE_LOG | |
| 4002 if (log_fd != stderr) | |
| 4003 fclose(log_fd); | |
| 4004 log_fd = NULL; | |
| 4005 #endif | |
| 4006 /* Have to clear the listid field of the NFA nodes, so that | |
| 4007 * nfa_regmatch() and addstate() can run properly after | |
| 4008 * recursion. */ | |
| 4009 nfa_save_listids(start, listids); | |
| 4010 nfa_set_null_listids(start); | |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4011 result = nfa_regmatch(t->state->out, submatch, m, endposp); |
| 4444 | 4012 nfa_set_neg_listids(start); |
| 4013 nfa_restore_listids(start, listids); | |
|
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4014 |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4015 /* restore position in input text */ |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4016 reginput = save_reginput; |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4017 regline = save_regline; |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4018 reglnum = save_reglnum; |
|
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4019 nfa_match = save_nfa_match; |
| 4444 | 4020 |
| 4021 #ifdef ENABLE_LOG | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4022 log_fd = fopen(NFA_REGEXP_RUN_LOG, "a"); |
| 4444 | 4023 if (log_fd != NULL) |
| 4024 { | |
| 4025 fprintf(log_fd, "****************************\n"); | |
| 4026 fprintf(log_fd, "FINISHED RUNNING nfa_regmatch() recursively\n"); | |
| 4027 fprintf(log_fd, "MATCH = %s\n", result == TRUE ? "OK" : "FALSE"); | |
| 4028 fprintf(log_fd, "****************************\n"); | |
| 4029 } | |
| 4030 else | |
| 4031 { | |
| 4032 EMSG(_("Could not open temporary log file for writing, displaying on stderr ... ")); | |
| 4033 log_fd = stderr; | |
| 4034 } | |
| 4035 #endif | |
|
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
4036 /* for \@! it is a match when result is FALSE */ |
|
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
4037 if (result != t->state->negated) |
| 4444 | 4038 { |
| 4039 /* Copy submatch info from the recursive call */ | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4040 copy_sub_off(&t->subs.norm, &m->norm); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4041 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4042 copy_sub_off(&t->subs.synt, &m->synt); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4043 #endif |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4044 |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4045 /* t->state->out1 is the corresponding END_INVISIBLE node; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4046 * Add it to the current list (zero-width match). */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4047 addstate_here(thislist, t->state->out1->out, &t->subs, |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4048 &listidx); |
| 4444 | 4049 } |
| 4050 break; | |
|
4669
2d15582e132f
updated for version 7.3.1082
Bram Moolenaar <bram@vim.org>
parents:
4667
diff
changeset
|
4051 } |
| 4444 | 4052 |
| 4053 case NFA_BOL: | |
| 4054 if (reginput == regline) | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4055 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
| 4444 | 4056 break; |
| 4057 | |
| 4058 case NFA_EOL: | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4059 if (curc == NUL) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4060 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
| 4444 | 4061 break; |
| 4062 | |
| 4063 case NFA_BOW: | |
| 4064 { | |
| 4065 int bow = TRUE; | |
| 4066 | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4067 if (curc == NUL) |
| 4444 | 4068 bow = FALSE; |
| 4069 #ifdef FEAT_MBYTE | |
| 4070 else if (has_mbyte) | |
| 4071 { | |
| 4072 int this_class; | |
| 4073 | |
| 4074 /* Get class of current and previous char (if it exists). */ | |
| 4503 | 4075 this_class = mb_get_class_buf(reginput, reg_buf); |
| 4444 | 4076 if (this_class <= 1) |
| 4077 bow = FALSE; | |
| 4078 else if (reg_prev_class() == this_class) | |
| 4079 bow = FALSE; | |
| 4080 } | |
| 4081 #endif | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4082 else if (!vim_iswordc_buf(curc, reg_buf) |
| 4503 | 4083 || (reginput > regline |
| 4084 && vim_iswordc_buf(reginput[-1], reg_buf))) | |
| 4444 | 4085 bow = FALSE; |
| 4086 if (bow) | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4087 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
| 4444 | 4088 break; |
| 4089 } | |
| 4090 | |
| 4091 case NFA_EOW: | |
| 4092 { | |
| 4093 int eow = TRUE; | |
| 4094 | |
| 4095 if (reginput == regline) | |
| 4096 eow = FALSE; | |
| 4097 #ifdef FEAT_MBYTE | |
| 4098 else if (has_mbyte) | |
| 4099 { | |
| 4100 int this_class, prev_class; | |
| 4101 | |
| 4102 /* Get class of current and previous char (if it exists). */ | |
| 4503 | 4103 this_class = mb_get_class_buf(reginput, reg_buf); |
| 4444 | 4104 prev_class = reg_prev_class(); |
| 4105 if (this_class == prev_class | |
| 4106 || prev_class == 0 || prev_class == 1) | |
| 4107 eow = FALSE; | |
| 4108 } | |
| 4109 #endif | |
| 4503 | 4110 else if (!vim_iswordc_buf(reginput[-1], reg_buf) |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4111 || (reginput[0] != NUL |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4112 && vim_iswordc_buf(curc, reg_buf))) |
| 4444 | 4113 eow = FALSE; |
| 4114 if (eow) | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4115 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
| 4444 | 4116 break; |
| 4117 } | |
| 4118 | |
|
4671
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4119 case NFA_BOF: |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4120 if (reglnum == 0 && reginput == regline |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4121 && (!REG_MULTI || reg_firstlnum == 1)) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4122 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
|
4671
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4123 break; |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4124 |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4125 case NFA_EOF: |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4126 if (reglnum == reg_maxline && curc == NUL) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4127 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
|
4671
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4128 break; |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4129 |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4130 #ifdef FEAT_MBYTE |
| 4444 | 4131 case NFA_COMPOSING: |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4132 { |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4133 int mc = curc; |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4134 int len = 0; |
|
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4135 nfa_state_T *end; |
|
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4136 nfa_state_T *sta; |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4137 int cchars[MAX_MCO]; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4138 int ccount = 0; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4139 int j; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4140 |
| 4444 | 4141 sta = t->state->out; |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4142 len = 0; |
|
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4143 if (utf_iscomposing(sta->c)) |
|
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4144 { |
|
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4145 /* Only match composing character(s), ignore base |
|
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4146 * character. Used for ".{composing}" and "{composing}" |
|
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4147 * (no preceding character). */ |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4148 len += mb_char2len(mc); |
|
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4149 } |
|
4551
f0c37f5cf4ea
updated for version 7.3.1023
Bram Moolenaar <bram@vim.org>
parents:
4549
diff
changeset
|
4150 if (ireg_icombine && len == 0) |
| 4444 | 4151 { |
|
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4152 /* If \Z was present, then ignore composing characters. |
|
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4153 * When ignoring the base character this always matches. */ |
|
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4154 /* TODO: How about negated? */ |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4155 if (len == 0 && sta->c != curc) |
|
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4156 result = FAIL; |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4157 else |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4158 result = OK; |
|
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4159 while (sta->c != NFA_END_COMPOSING) |
|
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4160 sta = sta->out; |
| 4444 | 4161 } |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4162 |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4163 /* Check base character matches first, unless ignored. */ |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4164 else if (len > 0 || mc == sta->c) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4165 { |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4166 if (len == 0) |
|
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4167 { |
|
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4168 len += mb_char2len(mc); |
|
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4169 sta = sta->out; |
|
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4170 } |
| 4444 | 4171 |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4172 /* We don't care about the order of composing characters. |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4173 * Get them into cchars[] first. */ |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4174 while (len < clen) |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4175 { |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4176 mc = mb_ptr2char(reginput + len); |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4177 cchars[ccount++] = mc; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4178 len += mb_char2len(mc); |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4179 if (ccount == MAX_MCO) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4180 break; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4181 } |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4182 |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4183 /* Check that each composing char in the pattern matches a |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4184 * composing char in the text. We do not check if all |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4185 * composing chars are matched. */ |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4186 result = OK; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4187 while (sta->c != NFA_END_COMPOSING) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4188 { |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4189 for (j = 0; j < ccount; ++j) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4190 if (cchars[j] == sta->c) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4191 break; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4192 if (j == ccount) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4193 { |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4194 result = FAIL; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4195 break; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4196 } |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4197 sta = sta->out; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4198 } |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4199 } |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4200 else |
|
4525
36ddcf4cecbc
updated for version 7.3.1010
Bram Moolenaar <bram@vim.org>
parents:
4517
diff
changeset
|
4201 result = FAIL; |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4202 |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4203 end = t->state->out1; /* NFA_END_COMPOSING */ |
| 4444 | 4204 ADD_POS_NEG_STATE(end); |
| 4205 break; | |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4206 } |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4207 #endif |
| 4444 | 4208 |
| 4209 case NFA_NEWL: | |
|
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4210 if (curc == NUL && !reg_line_lbr && REG_MULTI |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4211 && reglnum <= reg_maxline) |
| 4444 | 4212 { |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4213 go_to_nextline = TRUE; |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4214 /* Pass -1 for the offset, which means taking the position |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4215 * at the start of the next line. */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4216 addstate(nextlist, t->state->out, &t->subs, -1); |
| 4444 | 4217 } |
|
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4218 else if (curc == '\n' && reg_line_lbr) |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4219 { |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4220 /* match \n as if it is an ordinary character */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4221 addstate(nextlist, t->state->out, &t->subs, 1); |
|
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4222 } |
| 4444 | 4223 break; |
| 4224 | |
| 4225 case NFA_CLASS_ALNUM: | |
| 4226 case NFA_CLASS_ALPHA: | |
| 4227 case NFA_CLASS_BLANK: | |
| 4228 case NFA_CLASS_CNTRL: | |
| 4229 case NFA_CLASS_DIGIT: | |
| 4230 case NFA_CLASS_GRAPH: | |
| 4231 case NFA_CLASS_LOWER: | |
| 4232 case NFA_CLASS_PRINT: | |
| 4233 case NFA_CLASS_PUNCT: | |
| 4234 case NFA_CLASS_SPACE: | |
| 4235 case NFA_CLASS_UPPER: | |
| 4236 case NFA_CLASS_XDIGIT: | |
| 4237 case NFA_CLASS_TAB: | |
| 4238 case NFA_CLASS_RETURN: | |
| 4239 case NFA_CLASS_BACKSPACE: | |
| 4240 case NFA_CLASS_ESCAPE: | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4241 result = check_char_class(t->state->c, curc); |
| 4444 | 4242 ADD_POS_NEG_STATE(t->state); |
| 4243 break; | |
| 4244 | |
| 4245 case NFA_END_NEG_RANGE: | |
| 4246 /* This follows a series of negated nodes, like: | |
| 4247 * CHAR(x), NFA_NOT, CHAR(y), NFA_NOT etc. */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4248 if (curc > 0) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4249 addstate(nextlist, t->state->out, &t->subs, clen); |
| 4444 | 4250 break; |
| 4251 | |
| 4252 case NFA_ANY: | |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4253 /* Any char except '\0', (end of input) does not match. */ |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4254 if (curc > 0) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4255 addstate(nextlist, t->state->out, &t->subs, clen); |
| 4444 | 4256 break; |
| 4257 | |
| 4258 /* | |
| 4259 * Character classes like \a for alpha, \d for digit etc. | |
| 4260 */ | |
| 4261 case NFA_IDENT: /* \i */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4262 result = vim_isIDc(curc); |
| 4444 | 4263 ADD_POS_NEG_STATE(t->state); |
| 4264 break; | |
| 4265 | |
| 4266 case NFA_SIDENT: /* \I */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4267 result = !VIM_ISDIGIT(curc) && vim_isIDc(curc); |
| 4444 | 4268 ADD_POS_NEG_STATE(t->state); |
| 4269 break; | |
| 4270 | |
| 4271 case NFA_KWORD: /* \k */ | |
| 4503 | 4272 result = vim_iswordp_buf(reginput, reg_buf); |
| 4444 | 4273 ADD_POS_NEG_STATE(t->state); |
| 4274 break; | |
| 4275 | |
| 4276 case NFA_SKWORD: /* \K */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4277 result = !VIM_ISDIGIT(curc) |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4278 && vim_iswordp_buf(reginput, reg_buf); |
| 4444 | 4279 ADD_POS_NEG_STATE(t->state); |
| 4280 break; | |
| 4281 | |
| 4282 case NFA_FNAME: /* \f */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4283 result = vim_isfilec(curc); |
| 4444 | 4284 ADD_POS_NEG_STATE(t->state); |
| 4285 break; | |
| 4286 | |
| 4287 case NFA_SFNAME: /* \F */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4288 result = !VIM_ISDIGIT(curc) && vim_isfilec(curc); |
| 4444 | 4289 ADD_POS_NEG_STATE(t->state); |
| 4290 break; | |
| 4291 | |
| 4292 case NFA_PRINT: /* \p */ | |
| 4470 | 4293 result = ptr2cells(reginput) == 1; |
| 4444 | 4294 ADD_POS_NEG_STATE(t->state); |
| 4295 break; | |
| 4296 | |
| 4297 case NFA_SPRINT: /* \P */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4298 result = !VIM_ISDIGIT(curc) && ptr2cells(reginput) == 1; |
| 4444 | 4299 ADD_POS_NEG_STATE(t->state); |
| 4300 break; | |
| 4301 | |
| 4302 case NFA_WHITE: /* \s */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4303 result = vim_iswhite(curc); |
| 4444 | 4304 ADD_POS_NEG_STATE(t->state); |
| 4305 break; | |
| 4306 | |
| 4307 case NFA_NWHITE: /* \S */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4308 result = curc != NUL && !vim_iswhite(curc); |
| 4444 | 4309 ADD_POS_NEG_STATE(t->state); |
| 4310 break; | |
| 4311 | |
| 4312 case NFA_DIGIT: /* \d */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4313 result = ri_digit(curc); |
| 4444 | 4314 ADD_POS_NEG_STATE(t->state); |
| 4315 break; | |
| 4316 | |
| 4317 case NFA_NDIGIT: /* \D */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4318 result = curc != NUL && !ri_digit(curc); |
| 4444 | 4319 ADD_POS_NEG_STATE(t->state); |
| 4320 break; | |
| 4321 | |
| 4322 case NFA_HEX: /* \x */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4323 result = ri_hex(curc); |
| 4444 | 4324 ADD_POS_NEG_STATE(t->state); |
| 4325 break; | |
| 4326 | |
| 4327 case NFA_NHEX: /* \X */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4328 result = curc != NUL && !ri_hex(curc); |
| 4444 | 4329 ADD_POS_NEG_STATE(t->state); |
| 4330 break; | |
| 4331 | |
| 4332 case NFA_OCTAL: /* \o */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4333 result = ri_octal(curc); |
| 4444 | 4334 ADD_POS_NEG_STATE(t->state); |
| 4335 break; | |
| 4336 | |
| 4337 case NFA_NOCTAL: /* \O */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4338 result = curc != NUL && !ri_octal(curc); |
| 4444 | 4339 ADD_POS_NEG_STATE(t->state); |
| 4340 break; | |
| 4341 | |
| 4342 case NFA_WORD: /* \w */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4343 result = ri_word(curc); |
| 4444 | 4344 ADD_POS_NEG_STATE(t->state); |
| 4345 break; | |
| 4346 | |
| 4347 case NFA_NWORD: /* \W */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4348 result = curc != NUL && !ri_word(curc); |
| 4444 | 4349 ADD_POS_NEG_STATE(t->state); |
| 4350 break; | |
| 4351 | |
| 4352 case NFA_HEAD: /* \h */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4353 result = ri_head(curc); |
| 4444 | 4354 ADD_POS_NEG_STATE(t->state); |
| 4355 break; | |
| 4356 | |
| 4357 case NFA_NHEAD: /* \H */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4358 result = curc != NUL && !ri_head(curc); |
| 4444 | 4359 ADD_POS_NEG_STATE(t->state); |
| 4360 break; | |
| 4361 | |
| 4362 case NFA_ALPHA: /* \a */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4363 result = ri_alpha(curc); |
| 4444 | 4364 ADD_POS_NEG_STATE(t->state); |
| 4365 break; | |
| 4366 | |
| 4367 case NFA_NALPHA: /* \A */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4368 result = curc != NUL && !ri_alpha(curc); |
| 4444 | 4369 ADD_POS_NEG_STATE(t->state); |
| 4370 break; | |
| 4371 | |
| 4372 case NFA_LOWER: /* \l */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4373 result = ri_lower(curc); |
| 4444 | 4374 ADD_POS_NEG_STATE(t->state); |
| 4375 break; | |
| 4376 | |
| 4377 case NFA_NLOWER: /* \L */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4378 result = curc != NUL && !ri_lower(curc); |
| 4444 | 4379 ADD_POS_NEG_STATE(t->state); |
| 4380 break; | |
| 4381 | |
| 4382 case NFA_UPPER: /* \u */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4383 result = ri_upper(curc); |
| 4444 | 4384 ADD_POS_NEG_STATE(t->state); |
| 4385 break; | |
| 4386 | |
| 4387 case NFA_NUPPER: /* \U */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4388 result = curc != NUL && !ri_upper(curc); |
| 4444 | 4389 ADD_POS_NEG_STATE(t->state); |
| 4390 break; | |
| 4391 | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4392 case NFA_BACKREF1: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4393 case NFA_BACKREF2: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4394 case NFA_BACKREF3: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4395 case NFA_BACKREF4: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4396 case NFA_BACKREF5: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4397 case NFA_BACKREF6: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4398 case NFA_BACKREF7: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4399 case NFA_BACKREF8: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4400 case NFA_BACKREF9: |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4401 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4402 case NFA_ZREF1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4403 case NFA_ZREF2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4404 case NFA_ZREF3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4405 case NFA_ZREF4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4406 case NFA_ZREF5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4407 case NFA_ZREF6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4408 case NFA_ZREF7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4409 case NFA_ZREF8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4410 case NFA_ZREF9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4411 #endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4412 /* \1 .. \9 \z1 .. \z9 */ |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4413 { |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4414 int subidx; |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4415 int bytelen; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4416 |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4417 if (t->state->c <= NFA_BACKREF9) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4418 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4419 subidx = t->state->c - NFA_BACKREF1 + 1; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4420 result = match_backref(&t->subs.norm, subidx, &bytelen); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4421 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4422 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4423 else |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4424 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4425 subidx = t->state->c - NFA_ZREF1 + 1; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4426 result = match_zref(subidx, &bytelen); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4427 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4428 #endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4429 |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4430 if (result) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4431 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4432 if (bytelen == 0) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4433 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4434 /* empty match always works, add NFA_SKIP with zero to |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4435 * be used next */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4436 addstate_here(thislist, t->state->out, &t->subs, |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4437 &listidx); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4438 thislist->t[listidx + 1].count = 0; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4439 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4440 else if (bytelen <= clen) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4441 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4442 /* match current character, jump ahead to out of |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4443 * NFA_SKIP */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4444 addstate(nextlist, t->state->out->out, &t->subs, clen); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4445 #ifdef ENABLE_LOG |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4446 log_subsexpr(&nextlist->t[nextlist->n - 1].subs); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4447 #endif |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4448 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4449 else |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4450 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4451 /* skip ofer the matched characters, set character |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4452 * count in NFA_SKIP */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4453 addstate(nextlist, t->state->out, &t->subs, bytelen); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4454 nextlist->t[nextlist->n - 1].count = bytelen - clen; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4455 #ifdef ENABLE_LOG |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4456 log_subsexpr(&nextlist->t[nextlist->n - 1].subs); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4457 #endif |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4458 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4459 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4460 } |
| 4482 | 4461 break; |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4462 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4463 case NFA_SKIP: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4464 /* charater of previous matching \1 .. \9 */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4465 if (t->count - clen <= 0) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4466 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4467 /* end of match, go to what follows */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4468 addstate(nextlist, t->state->out, &t->subs, clen); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4469 #ifdef ENABLE_LOG |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4470 log_subsexpr(&nextlist->t[nextlist->n - 1].subs); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4471 #endif |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4472 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4473 else |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4474 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4475 /* add state again with decremented count */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4476 addstate(nextlist, t->state, &t->subs, 0); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4477 nextlist->t[nextlist->n - 1].count = t->count - clen; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4478 #ifdef ENABLE_LOG |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4479 log_subsexpr(&nextlist->t[nextlist->n - 1].subs); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4480 #endif |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4481 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4482 break; |
| 4482 | 4483 |
| 4484 case NFA_SKIP_CHAR: | |
| 4485 case NFA_ZSTART: | |
|
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
4486 case NFA_ZEND: |
| 4482 | 4487 /* TODO: should not happen? */ |
| 4488 break; | |
| 4489 | |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4490 case NFA_LNUM: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4491 case NFA_LNUM_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4492 case NFA_LNUM_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4493 result = (REG_MULTI && |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4494 nfa_re_num_cmp(t->state->val, t->state->c - NFA_LNUM, |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4495 (long_u)(reglnum + reg_firstlnum))); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4496 if (result) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4497 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4498 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4499 |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4500 case NFA_COL: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4501 case NFA_COL_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4502 case NFA_COL_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4503 result = nfa_re_num_cmp(t->state->val, t->state->c - NFA_COL, |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4504 (long_u)(reginput - regline) + 1); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4505 if (result) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4506 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4507 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4508 |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4509 case NFA_VCOL: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4510 case NFA_VCOL_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4511 case NFA_VCOL_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4512 result = nfa_re_num_cmp(t->state->val, t->state->c - NFA_VCOL, |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4513 (long_u)win_linetabsize( |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4514 reg_win == NULL ? curwin : reg_win, |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4515 regline, (colnr_T)(reginput - regline)) + 1); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4516 if (result) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4517 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4518 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4519 |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4520 case NFA_CURSOR: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4521 result = (reg_win != NULL |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4522 && (reglnum + reg_firstlnum == reg_win->w_cursor.lnum) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4523 && ((colnr_T)(reginput - regline) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4524 == reg_win->w_cursor.col)); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4525 if (result) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4526 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4527 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4528 |
| 4444 | 4529 default: /* regular character */ |
|
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4530 { |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4531 int c = t->state->c; |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4532 |
| 4482 | 4533 /* TODO: put this in #ifdef later */ |
|
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4534 if (c < -256) |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4535 EMSGN("INTERNAL: Negative state char: %ld", c); |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4536 if (is_Magic(c)) |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4537 c = un_Magic(c); |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4538 result = (c == curc); |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4539 |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4540 if (!result && ireg_ic) |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4541 result = MB_TOLOWER(c) == MB_TOLOWER(curc); |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4542 #ifdef FEAT_MBYTE |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4543 /* If there is a composing character which is not being |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4544 * ignored there can be no match. Match with composing |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4545 * character uses NFA_COMPOSING above. */ |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4546 if (result && enc_utf8 && !ireg_icombine |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4547 && clen != utf_char2len(curc)) |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4548 result = FALSE; |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4549 #endif |
| 4444 | 4550 ADD_POS_NEG_STATE(t->state); |
| 4551 break; | |
|
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4552 } |
| 4444 | 4553 } |
| 4554 | |
| 4555 } /* for (thislist = thislist; thislist->state; thislist++) */ | |
| 4556 | |
|
4557
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4557 /* Look for the start of a match in the current position by adding the |
|
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4558 * start state to the list of states. |
|
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4559 * The first found match is the leftmost one, thus the order of states |
|
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4560 * matters! |
|
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4561 * Do not add the start state in recursive calls of nfa_regmatch(), |
|
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4562 * because recursive calls should only start in the first position. |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4563 * Unless "endp" is not NULL, then we match the end position. |
|
4557
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4564 * Also don't start a match past the first line. */ |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4565 if (nfa_match == FALSE |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4566 && ((start->c == NFA_MOPEN |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4567 && reglnum == 0 |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4568 && clen != 0 |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4569 && (ireg_maxcol == 0 |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4570 || (colnr_T)(reginput - regline) < ireg_maxcol)) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4571 || (endp != NULL |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4572 && (REG_MULTI |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4573 ? (reglnum < endp->se_u.pos.lnum |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4574 || (reglnum == endp->se_u.pos.lnum |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4575 && (int)(reginput - regline) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4576 < endp->se_u.pos.col)) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4577 : reginput < endp->se_u.ptr)))) |
| 4444 | 4578 { |
| 4579 #ifdef ENABLE_LOG | |
| 4580 fprintf(log_fd, "(---) STARTSTATE\n"); | |
| 4581 #endif | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4582 addstate(nextlist, start, m, clen); |
| 4444 | 4583 } |
| 4584 | |
| 4585 #ifdef ENABLE_LOG | |
| 4586 fprintf(log_fd, ">>> Thislist had %d states available: ", thislist->n); | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4587 { |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4588 int i; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4589 |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4590 for (i = 0; i < thislist->n; i++) |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4591 fprintf(log_fd, "%d ", abs(thislist->t[i].state->id)); |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4592 } |
| 4444 | 4593 fprintf(log_fd, "\n"); |
| 4594 #endif | |
| 4595 | |
| 4596 nextchar: | |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4597 /* Advance to the next character, or advance to the next line, or |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4598 * finish. */ |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4599 if (clen != 0) |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4600 reginput += clen; |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4601 else if (go_to_nextline || (endp != NULL && REG_MULTI |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4602 && reglnum < endp->se_u.pos.lnum)) |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4603 reg_nextline(); |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4604 else |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4605 break; |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4606 } |
| 4444 | 4607 |
| 4608 #ifdef ENABLE_LOG | |
| 4609 if (log_fd != stderr) | |
| 4610 fclose(log_fd); | |
| 4611 log_fd = NULL; | |
| 4612 #endif | |
| 4613 | |
| 4614 theend: | |
| 4615 /* Free memory */ | |
| 4616 vim_free(list[0].t); | |
| 4617 vim_free(list[1].t); | |
| 4618 vim_free(list[2].t); | |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4619 vim_free(listids); |
| 4444 | 4620 #undef ADD_POS_NEG_STATE |
| 4460 | 4621 #ifdef NFA_REGEXP_DEBUG_LOG |
| 4444 | 4622 fclose(debug); |
| 4623 #endif | |
| 4624 | |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4625 return nfa_match; |
| 4444 | 4626 } |
| 4627 | |
| 4628 /* | |
| 4629 * Try match of "prog" with at regline["col"]. | |
| 4630 * Returns 0 for failure, number of lines contained in the match otherwise. | |
| 4631 */ | |
| 4632 static long | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4633 nfa_regtry(prog, col) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4634 nfa_regprog_T *prog; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4635 colnr_T col; |
| 4444 | 4636 { |
| 4637 int i; | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4638 regsubs_T subs, m; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4639 nfa_state_T *start = prog->start; |
| 4444 | 4640 #ifdef ENABLE_LOG |
| 4641 FILE *f; | |
| 4642 #endif | |
| 4643 | |
| 4644 reginput = regline + col; | |
| 4645 need_clear_subexpr = TRUE; | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4646 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4647 /* Clear the external match subpointers if necessary. */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4648 if (prog->reghasz == REX_SET) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4649 need_clear_zsubexpr = TRUE; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4650 #endif |
| 4444 | 4651 |
| 4652 #ifdef ENABLE_LOG | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4653 f = fopen(NFA_REGEXP_RUN_LOG, "a"); |
| 4444 | 4654 if (f != NULL) |
| 4655 { | |
| 4656 fprintf(f, "\n\n\n\n\n\n\t\t=======================================================\n"); | |
| 4657 fprintf(f, " =======================================================\n"); | |
| 4658 #ifdef DEBUG | |
| 4659 fprintf(f, "\tRegexp is \"%s\"\n", nfa_regengine.expr); | |
| 4660 #endif | |
| 4661 fprintf(f, "\tInput text is \"%s\" \n", reginput); | |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4662 fprintf(f, " =======================================================\n\n"); |
|
4533
6a2005efa02b
updated for version 7.3.1014
Bram Moolenaar <bram@vim.org>
parents:
4531
diff
changeset
|
4663 nfa_print_state(f, start); |
| 4444 | 4664 fprintf(f, "\n\n"); |
| 4665 fclose(f); | |
| 4666 } | |
| 4667 else | |
| 4668 EMSG(_("Could not open temporary log file for writing ")); | |
| 4669 #endif | |
| 4670 | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4671 clear_sub(&subs.norm); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4672 clear_sub(&m.norm); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4673 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4674 clear_sub(&subs.synt); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4675 clear_sub(&m.synt); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4676 #endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4677 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4678 if (nfa_regmatch(start, &subs, &m, NULL) == FALSE) |
| 4444 | 4679 return 0; |
| 4680 | |
| 4681 cleanup_subexpr(); | |
| 4682 if (REG_MULTI) | |
| 4683 { | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4684 for (i = 0; i < subs.norm.in_use; i++) |
| 4444 | 4685 { |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4686 reg_startpos[i] = subs.norm.list.multi[i].start; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4687 reg_endpos[i] = subs.norm.list.multi[i].end; |
| 4444 | 4688 } |
| 4689 | |
| 4690 if (reg_startpos[0].lnum < 0) | |
| 4691 { | |
| 4692 reg_startpos[0].lnum = 0; | |
| 4693 reg_startpos[0].col = col; | |
| 4694 } | |
| 4695 if (reg_endpos[0].lnum < 0) | |
| 4696 { | |
|
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
4697 /* pattern has a \ze but it didn't match, use current end */ |
| 4444 | 4698 reg_endpos[0].lnum = reglnum; |
| 4699 reg_endpos[0].col = (int)(reginput - regline); | |
| 4700 } | |
| 4701 else | |
| 4702 /* Use line number of "\ze". */ | |
| 4703 reglnum = reg_endpos[0].lnum; | |
| 4704 } | |
| 4705 else | |
| 4706 { | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4707 for (i = 0; i < subs.norm.in_use; i++) |
| 4444 | 4708 { |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4709 reg_startp[i] = subs.norm.list.line[i].start; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4710 reg_endp[i] = subs.norm.list.line[i].end; |
| 4444 | 4711 } |
| 4712 | |
| 4713 if (reg_startp[0] == NULL) | |
| 4714 reg_startp[0] = regline + col; | |
| 4715 if (reg_endp[0] == NULL) | |
| 4716 reg_endp[0] = reginput; | |
| 4717 } | |
| 4718 | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4719 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4720 /* Package any found \z(...\) matches for export. Default is none. */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4721 unref_extmatch(re_extmatch_out); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4722 re_extmatch_out = NULL; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4723 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4724 if (prog->reghasz == REX_SET) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4725 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4726 int i; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4727 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4728 cleanup_zsubexpr(); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4729 re_extmatch_out = make_extmatch(); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4730 for (i = 0; i < subs.synt.in_use; i++) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4731 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4732 if (REG_MULTI) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4733 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4734 struct multipos *mpos = &subs.synt.list.multi[i]; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4735 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4736 /* Only accept single line matches. */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4737 if (mpos->start.lnum >= 0 && mpos->start.lnum == mpos->end.lnum) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4738 re_extmatch_out->matches[i] = |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4739 vim_strnsave(reg_getline(mpos->start.lnum) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4740 + mpos->start.col, |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4741 mpos->end.col - mpos->start.col); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4742 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4743 else |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4744 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4745 struct linepos *lpos = &subs.synt.list.line[i]; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4746 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4747 if (lpos->start != NULL && lpos->end != NULL) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4748 re_extmatch_out->matches[i] = |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4749 vim_strnsave(lpos->start, |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4750 (int)(lpos->end - lpos->start)); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4751 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4752 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4753 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4754 #endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4755 |
| 4444 | 4756 return 1 + reglnum; |
| 4757 } | |
| 4758 | |
| 4759 /* | |
| 4760 * Match a regexp against a string ("line" points to the string) or multiple | |
| 4761 * lines ("line" is NULL, use reg_getline()). | |
| 4762 * | |
| 4763 * Returns 0 for failure, number of lines contained in the match otherwise. | |
| 4764 */ | |
| 4765 static long | |
| 4766 nfa_regexec_both(line, col) | |
| 4767 char_u *line; | |
| 4768 colnr_T col; /* column to start looking for match */ | |
| 4769 { | |
| 4770 nfa_regprog_T *prog; | |
| 4771 long retval = 0L; | |
| 4772 int i; | |
| 4773 | |
| 4774 if (REG_MULTI) | |
| 4775 { | |
| 4776 prog = (nfa_regprog_T *)reg_mmatch->regprog; | |
| 4777 line = reg_getline((linenr_T)0); /* relative to the cursor */ | |
| 4778 reg_startpos = reg_mmatch->startpos; | |
| 4779 reg_endpos = reg_mmatch->endpos; | |
| 4780 } | |
| 4781 else | |
| 4782 { | |
| 4783 prog = (nfa_regprog_T *)reg_match->regprog; | |
| 4784 reg_startp = reg_match->startp; | |
| 4785 reg_endp = reg_match->endp; | |
| 4786 } | |
| 4787 | |
| 4788 /* Be paranoid... */ | |
| 4789 if (prog == NULL || line == NULL) | |
| 4790 { | |
| 4791 EMSG(_(e_null)); | |
| 4792 goto theend; | |
| 4793 } | |
| 4794 | |
| 4795 /* If the start column is past the maximum column: no need to try. */ | |
| 4796 if (ireg_maxcol > 0 && col >= ireg_maxcol) | |
| 4797 goto theend; | |
| 4798 | |
| 4799 /* If pattern contains "\c" or "\C": overrule value of ireg_ic */ | |
| 4800 if (prog->regflags & RF_ICASE) | |
| 4801 ireg_ic = TRUE; | |
| 4802 else if (prog->regflags & RF_NOICASE) | |
| 4803 ireg_ic = FALSE; | |
| 4804 | |
| 4805 #ifdef FEAT_MBYTE | |
| 4806 /* If pattern contains "\Z" overrule value of ireg_icombine */ | |
| 4807 if (prog->regflags & RF_ICOMBINE) | |
| 4808 ireg_icombine = TRUE; | |
| 4809 #endif | |
| 4810 | |
| 4811 regline = line; | |
| 4812 reglnum = 0; /* relative to line */ | |
| 4813 | |
|
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4814 nfa_has_zend = prog->has_zend; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
4815 nfa_has_backref = prog->has_backref; |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4816 nfa_nsubexpr = prog->nsubexp; |
|
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4817 |
| 4444 | 4818 nstate = prog->nstate; |
| 4819 for (i = 0; i < nstate; ++i) | |
| 4820 { | |
| 4821 prog->state[i].id = i; | |
| 4822 prog->state[i].lastlist = 0; | |
| 4823 } | |
| 4824 | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4825 retval = nfa_regtry(prog, col); |
| 4444 | 4826 |
| 4827 theend: | |
| 4828 return retval; | |
| 4829 } | |
| 4830 | |
| 4831 /* | |
| 4832 * Compile a regular expression into internal code for the NFA matcher. | |
| 4833 * Returns the program in allocated space. Returns NULL for an error. | |
| 4834 */ | |
| 4835 static regprog_T * | |
| 4836 nfa_regcomp(expr, re_flags) | |
| 4837 char_u *expr; | |
| 4838 int re_flags; | |
| 4839 { | |
|
4541
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4840 nfa_regprog_T *prog = NULL; |
| 4458 | 4841 size_t prog_size; |
| 4444 | 4842 int *postfix; |
| 4843 | |
| 4844 if (expr == NULL) | |
| 4845 return NULL; | |
| 4846 | |
| 4847 #ifdef DEBUG | |
| 4848 nfa_regengine.expr = expr; | |
| 4849 #endif | |
| 4850 | |
| 4851 init_class_tab(); | |
| 4852 | |
| 4853 if (nfa_regcomp_start(expr, re_flags) == FAIL) | |
| 4854 return NULL; | |
| 4855 | |
| 4856 /* Build postfix form of the regexp. Needed to build the NFA | |
|
4541
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4857 * (and count its size). */ |
| 4444 | 4858 postfix = re2post(); |
| 4859 if (postfix == NULL) | |
|
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4860 { |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4861 /* TODO: only give this error for debugging? */ |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4862 if (post_ptr >= post_end) |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4863 EMSGN("Internal error: estimated max number of states insufficient: %ld", post_end - post_start); |
| 4444 | 4864 goto fail; /* Cascaded (syntax?) error */ |
|
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4865 } |
| 4444 | 4866 |
| 4867 /* | |
| 4868 * In order to build the NFA, we parse the input regexp twice: | |
| 4869 * 1. first pass to count size (so we can allocate space) | |
| 4870 * 2. second to emit code | |
| 4871 */ | |
| 4872 #ifdef ENABLE_LOG | |
| 4873 { | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4874 FILE *f = fopen(NFA_REGEXP_RUN_LOG, "a"); |
| 4444 | 4875 |
| 4876 if (f != NULL) | |
| 4877 { | |
| 4878 fprintf(f, "\n*****************************\n\n\n\n\tCompiling regexp \"%s\" ... hold on !\n", expr); | |
| 4879 fclose(f); | |
| 4880 } | |
| 4881 } | |
| 4882 #endif | |
| 4883 | |
| 4884 /* | |
| 4885 * PASS 1 | |
| 4886 * Count number of NFA states in "nstate". Do not build the NFA. | |
| 4887 */ | |
| 4888 post2nfa(postfix, post_ptr, TRUE); | |
|
4541
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4889 |
|
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4890 /* Space for compiled regexp */ |
|
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4891 prog_size = sizeof(nfa_regprog_T) + sizeof(nfa_state_T) * nstate; |
|
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4892 prog = (nfa_regprog_T *)lalloc(prog_size, TRUE); |
|
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4893 if (prog == NULL) |
|
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4894 goto fail; |
|
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4895 vim_memset(prog, 0, prog_size); |
| 4444 | 4896 state_ptr = prog->state; |
| 4897 | |
| 4898 /* | |
| 4899 * PASS 2 | |
| 4900 * Build the NFA | |
| 4901 */ | |
| 4902 prog->start = post2nfa(postfix, post_ptr, FALSE); | |
| 4903 if (prog->start == NULL) | |
| 4904 goto fail; | |
| 4905 | |
| 4906 prog->regflags = regflags; | |
| 4907 prog->engine = &nfa_regengine; | |
| 4908 prog->nstate = nstate; | |
|
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4909 prog->has_zend = nfa_has_zend; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
4910 prog->has_backref = nfa_has_backref; |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4911 prog->nsubexp = regnpar; |
| 4444 | 4912 #ifdef ENABLE_LOG |
| 4913 nfa_postfix_dump(expr, OK); | |
| 4914 nfa_dump(prog); | |
| 4915 #endif | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4916 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4917 /* Remember whether this pattern has any \z specials in it. */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4918 prog->reghasz = re_has_z; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4919 #endif |
| 4444 | 4920 |
| 4921 out: | |
| 4922 vim_free(post_start); | |
| 4923 post_start = post_ptr = post_end = NULL; | |
| 4924 state_ptr = NULL; | |
| 4925 return (regprog_T *)prog; | |
| 4926 | |
| 4927 fail: | |
| 4928 vim_free(prog); | |
| 4929 prog = NULL; | |
| 4930 #ifdef ENABLE_LOG | |
| 4931 nfa_postfix_dump(expr, FAIL); | |
| 4932 #endif | |
| 4933 #ifdef DEBUG | |
| 4934 nfa_regengine.expr = NULL; | |
| 4935 #endif | |
| 4936 goto out; | |
| 4937 } | |
| 4938 | |
| 4939 | |
| 4940 /* | |
| 4941 * Match a regexp against a string. | |
| 4942 * "rmp->regprog" is a compiled regexp as returned by nfa_regcomp(). | |
| 4943 * Uses curbuf for line count and 'iskeyword'. | |
| 4944 * | |
| 4945 * Return TRUE if there is a match, FALSE if not. | |
| 4946 */ | |
| 4947 static int | |
| 4948 nfa_regexec(rmp, line, col) | |
| 4949 regmatch_T *rmp; | |
| 4950 char_u *line; /* string to match against */ | |
| 4951 colnr_T col; /* column to start looking for match */ | |
| 4952 { | |
| 4953 reg_match = rmp; | |
| 4954 reg_mmatch = NULL; | |
| 4955 reg_maxline = 0; | |
| 4956 reg_line_lbr = FALSE; | |
| 4957 reg_buf = curbuf; | |
| 4958 reg_win = NULL; | |
| 4959 ireg_ic = rmp->rm_ic; | |
| 4960 #ifdef FEAT_MBYTE | |
| 4961 ireg_icombine = FALSE; | |
| 4962 #endif | |
| 4963 ireg_maxcol = 0; | |
| 4964 return (nfa_regexec_both(line, col) != 0); | |
| 4965 } | |
| 4966 | |
| 4967 #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) \ | |
| 4968 || defined(FIND_REPLACE_DIALOG) || defined(PROTO) | |
| 4969 | |
| 4970 static int nfa_regexec_nl __ARGS((regmatch_T *rmp, char_u *line, colnr_T col)); | |
| 4971 | |
| 4972 /* | |
| 4973 * Like nfa_regexec(), but consider a "\n" in "line" to be a line break. | |
| 4974 */ | |
| 4975 static int | |
| 4976 nfa_regexec_nl(rmp, line, col) | |
| 4977 regmatch_T *rmp; | |
| 4978 char_u *line; /* string to match against */ | |
| 4979 colnr_T col; /* column to start looking for match */ | |
| 4980 { | |
| 4981 reg_match = rmp; | |
| 4982 reg_mmatch = NULL; | |
| 4983 reg_maxline = 0; | |
| 4984 reg_line_lbr = TRUE; | |
| 4985 reg_buf = curbuf; | |
| 4986 reg_win = NULL; | |
| 4987 ireg_ic = rmp->rm_ic; | |
| 4988 #ifdef FEAT_MBYTE | |
| 4989 ireg_icombine = FALSE; | |
| 4990 #endif | |
| 4991 ireg_maxcol = 0; | |
| 4992 return (nfa_regexec_both(line, col) != 0); | |
| 4993 } | |
| 4994 #endif | |
| 4995 | |
| 4996 | |
| 4997 /* | |
| 4998 * Match a regexp against multiple lines. | |
| 4999 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 5000 * Uses curbuf for line count and 'iskeyword'. | |
| 5001 * | |
| 5002 * Return zero if there is no match. Return number of lines contained in the | |
| 5003 * match otherwise. | |
| 5004 * | |
| 5005 * Note: the body is the same as bt_regexec() except for nfa_regexec_both() | |
| 5006 * | |
| 5007 * ! Also NOTE : match may actually be in another line. e.g.: | |
| 5008 * when r.e. is \nc, cursor is at 'a' and the text buffer looks like | |
| 5009 * | |
| 5010 * +-------------------------+ | |
| 5011 * |a | | |
| 5012 * |b | | |
| 5013 * |c | | |
| 5014 * | | | |
| 5015 * +-------------------------+ | |
| 5016 * | |
| 5017 * then nfa_regexec_multi() returns 3. while the original | |
| 5018 * vim_regexec_multi() returns 0 and a second call at line 2 will return 2. | |
| 5019 * | |
| 5020 * FIXME if this behavior is not compatible. | |
| 5021 */ | |
| 5022 static long | |
| 5023 nfa_regexec_multi(rmp, win, buf, lnum, col, tm) | |
| 5024 regmmatch_T *rmp; | |
| 5025 win_T *win; /* window in which to search or NULL */ | |
| 5026 buf_T *buf; /* buffer in which to search */ | |
| 5027 linenr_T lnum; /* nr of line to start looking for match */ | |
| 5028 colnr_T col; /* column to start looking for match */ | |
| 5029 proftime_T *tm UNUSED; /* timeout limit or NULL */ | |
| 5030 { | |
| 5031 reg_match = NULL; | |
| 5032 reg_mmatch = rmp; | |
| 5033 reg_buf = buf; | |
| 5034 reg_win = win; | |
| 5035 reg_firstlnum = lnum; | |
| 5036 reg_maxline = reg_buf->b_ml.ml_line_count - lnum; | |
| 5037 reg_line_lbr = FALSE; | |
| 5038 ireg_ic = rmp->rmm_ic; | |
| 5039 #ifdef FEAT_MBYTE | |
| 5040 ireg_icombine = FALSE; | |
| 5041 #endif | |
| 5042 ireg_maxcol = rmp->rmm_maxcol; | |
| 5043 | |
| 4503 | 5044 return nfa_regexec_both(NULL, col); |
| 4444 | 5045 } |
| 5046 | |
| 5047 #ifdef DEBUG | |
| 5048 # undef ENABLE_LOG | |
| 5049 #endif |