Mercurial > vim
annotate src/regexp_nfa.c @ 4720:bd6bef0bd0fb v7.3.1107
updated for version 7.3.1107
Problem: Compiler warnings for unused variables.
Solution: Put the variables inside #ifdef.
| author | Bram Moolenaar <bram@vim.org> |
|---|---|
| date | Mon, 03 Jun 2013 19:41:06 +0200 |
| parents | ec72bb4a0fc2 |
| children | 3849c811cc0b |
| 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 #ifdef FEAT_SYN_HL |
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241 /* NFA regexp has \z( ), set zsubexpr. */ |
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242 static int nfa_has_zsubexpr; |
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243 #endif |
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244 |
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245 /* Number of sub expressions actually being used during execution. 1 if only |
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246 * the whole match (subexpr 0) is used. */ |
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247 static int nfa_nsubexpr; |
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248 |
| 4444 | 249 static int *post_start; /* holds the postfix form of r.e. */ |
| 250 static int *post_end; | |
| 251 static int *post_ptr; | |
| 252 | |
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253 static int nstate; /* Number of states in the NFA. Also used when |
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254 * executing. */ |
|
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255 static int istate; /* Index in the state vector, used in alloc_state() */ |
| 4444 | 256 |
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257 /* If not NULL match must end at this position */ |
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258 static save_se_T *nfa_endp = NULL; |
| 4444 | 259 |
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260 /* listid is global, so that it increases on recursive calls to |
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261 * nfa_regmatch(), which means we don't have to clear the lastlist field of |
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262 * all the states. */ |
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263 static int nfa_listid; |
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264 static int nfa_alt_listid; |
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265 |
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266 /* 0 for first call to nfa_regmatch(), 1 for recursive call. */ |
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267 static int nfa_ll_index = 0; |
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268 |
| 4444 | 269 static int nfa_regcomp_start __ARGS((char_u*expr, int re_flags)); |
| 270 static int nfa_recognize_char_class __ARGS((char_u *start, char_u *end, int extra_newl)); | |
| 271 static int nfa_emit_equi_class __ARGS((int c, int neg)); | |
| 272 static int nfa_regatom __ARGS((void)); | |
| 273 static int nfa_regpiece __ARGS((void)); | |
| 274 static int nfa_regconcat __ARGS((void)); | |
| 275 static int nfa_regbranch __ARGS((void)); | |
| 276 static int nfa_reg __ARGS((int paren)); | |
| 277 #ifdef DEBUG | |
| 278 static void nfa_set_code __ARGS((int c)); | |
| 279 static void nfa_postfix_dump __ARGS((char_u *expr, int retval)); | |
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280 static void nfa_print_state __ARGS((FILE *debugf, nfa_state_T *state)); |
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281 static void nfa_print_state2 __ARGS((FILE *debugf, nfa_state_T *state, garray_T *indent)); |
| 4444 | 282 static void nfa_dump __ARGS((nfa_regprog_T *prog)); |
| 283 #endif | |
| 284 static int *re2post __ARGS((void)); | |
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285 static nfa_state_T *alloc_state __ARGS((int c, nfa_state_T *out, nfa_state_T *out1)); |
| 4444 | 286 static nfa_state_T *post2nfa __ARGS((int *postfix, int *end, int nfa_calc_size)); |
| 287 static int check_char_class __ARGS((int class, int c)); | |
| 288 static void st_error __ARGS((int *postfix, int *end, int *p)); | |
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289 static void nfa_save_listids __ARGS((nfa_regprog_T *prog, int *list)); |
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290 static void nfa_restore_listids __ARGS((nfa_regprog_T *prog, int *list)); |
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291 static int nfa_re_num_cmp __ARGS((long_u val, int op, long_u pos)); |
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292 static long nfa_regtry __ARGS((nfa_regprog_T *prog, colnr_T col)); |
| 4444 | 293 static long nfa_regexec_both __ARGS((char_u *line, colnr_T col)); |
| 294 static regprog_T *nfa_regcomp __ARGS((char_u *expr, int re_flags)); | |
| 295 static int nfa_regexec __ARGS((regmatch_T *rmp, char_u *line, colnr_T col)); | |
| 296 static long nfa_regexec_multi __ARGS((regmmatch_T *rmp, win_T *win, buf_T *buf, linenr_T lnum, colnr_T col, proftime_T *tm)); | |
| 297 | |
| 298 /* helper functions used when doing re2post() ... regatom() parsing */ | |
| 299 #define EMIT(c) do { \ | |
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300 if (post_ptr >= post_end && realloc_post_list() == FAIL) \ |
| 4444 | 301 return FAIL; \ |
| 302 *post_ptr++ = c; \ | |
| 303 } while (0) | |
| 304 | |
| 305 /* | |
| 306 * Initialize internal variables before NFA compilation. | |
| 307 * Return OK on success, FAIL otherwise. | |
| 308 */ | |
| 309 static int | |
| 310 nfa_regcomp_start(expr, re_flags) | |
| 311 char_u *expr; | |
| 312 int re_flags; /* see vim_regcomp() */ | |
| 313 { | |
| 4458 | 314 size_t postfix_size; |
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315 int nstate_max; |
| 4444 | 316 |
| 317 nstate = 0; | |
| 318 istate = 0; | |
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319 /* A reasonable estimation for maximum size */ |
|
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320 nstate_max = (int)(STRLEN(expr) + 1) * 25; |
| 4444 | 321 |
| 4454 | 322 /* Some items blow up in size, such as [A-z]. Add more space for that. |
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323 * When it is still not enough realloc_post_list() will be used. */ |
| 4458 | 324 nstate_max += 1000; |
| 4454 | 325 |
| 326 /* Size for postfix representation of expr. */ | |
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327 postfix_size = sizeof(int) * nstate_max; |
| 4454 | 328 |
| 4444 | 329 post_start = (int *)lalloc(postfix_size, TRUE); |
| 330 if (post_start == NULL) | |
| 331 return FAIL; | |
| 332 vim_memset(post_start, 0, postfix_size); | |
| 333 post_ptr = post_start; | |
| 4454 | 334 post_end = post_start + nstate_max; |
| 4444 | 335 nfa_has_zend = FALSE; |
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336 nfa_has_backref = FALSE; |
| 4444 | 337 |
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338 /* shared with BT engine */ |
| 4444 | 339 regcomp_start(expr, re_flags); |
| 340 | |
| 341 return OK; | |
| 342 } | |
| 343 | |
| 344 /* | |
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345 * Allocate more space for post_start. Called when |
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346 * running above the estimated number of states. |
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347 */ |
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348 static int |
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349 realloc_post_list() |
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350 { |
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351 int nstate_max = (int)(post_end - post_start); |
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352 int new_max = nstate_max + 1000; |
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353 int *new_start; |
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354 int *old_start; |
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355 |
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356 new_start = (int *)lalloc(new_max * sizeof(int), TRUE); |
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357 if (new_start == NULL) |
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358 return FAIL; |
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359 mch_memmove(new_start, post_start, nstate_max * sizeof(int)); |
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360 vim_memset(new_start + nstate_max, 0, 1000 * sizeof(int)); |
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361 old_start = post_start; |
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362 post_start = new_start; |
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363 post_ptr = new_start + (post_ptr - old_start); |
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364 post_end = post_start + new_max; |
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365 vim_free(old_start); |
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366 return OK; |
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367 } |
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368 |
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369 /* |
| 4444 | 370 * Search between "start" and "end" and try to recognize a |
| 371 * character class in expanded form. For example [0-9]. | |
| 372 * On success, return the id the character class to be emitted. | |
| 373 * On failure, return 0 (=FAIL) | |
| 374 * Start points to the first char of the range, while end should point | |
| 375 * to the closing brace. | |
| 376 */ | |
| 377 static int | |
| 378 nfa_recognize_char_class(start, end, extra_newl) | |
| 379 char_u *start; | |
| 380 char_u *end; | |
| 381 int extra_newl; | |
| 382 { | |
| 383 int i; | |
| 384 /* Each of these variables takes up a char in "config[]", | |
| 385 * in the order they are here. */ | |
| 386 int not = FALSE, af = FALSE, AF = FALSE, az = FALSE, AZ = FALSE, | |
| 387 o7 = FALSE, o9 = FALSE, underscore = FALSE, newl = FALSE; | |
| 388 char_u *p; | |
| 389 #define NCONFIGS 16 | |
| 390 int classid[NCONFIGS] = { | |
| 391 NFA_DIGIT, NFA_NDIGIT, NFA_HEX, NFA_NHEX, | |
| 392 NFA_OCTAL, NFA_NOCTAL, NFA_WORD, NFA_NWORD, | |
| 393 NFA_HEAD, NFA_NHEAD, NFA_ALPHA, NFA_NALPHA, | |
| 394 NFA_LOWER, NFA_NLOWER, NFA_UPPER, NFA_NUPPER | |
| 395 }; | |
| 4450 | 396 char_u myconfig[10]; |
| 4444 | 397 char_u config[NCONFIGS][9] = { |
| 398 "000000100", /* digit */ | |
| 399 "100000100", /* non digit */ | |
| 400 "011000100", /* hex-digit */ | |
| 401 "111000100", /* non hex-digit */ | |
| 402 "000001000", /* octal-digit */ | |
| 403 "100001000", /* [^0-7] */ | |
| 404 "000110110", /* [0-9A-Za-z_] */ | |
| 405 "100110110", /* [^0-9A-Za-z_] */ | |
| 406 "000110010", /* head of word */ | |
| 407 "100110010", /* not head of word */ | |
| 408 "000110000", /* alphabetic char a-z */ | |
| 409 "100110000", /* non alphabetic char */ | |
| 410 "000100000", /* lowercase letter */ | |
| 411 "100100000", /* non lowercase */ | |
| 412 "000010000", /* uppercase */ | |
| 413 "100010000" /* non uppercase */ | |
| 414 }; | |
| 415 | |
| 416 if (extra_newl == TRUE) | |
| 417 newl = TRUE; | |
| 418 | |
| 419 if (*end != ']') | |
| 420 return FAIL; | |
| 421 p = start; | |
| 422 if (*p == '^') | |
| 423 { | |
| 424 not = TRUE; | |
|
4720
bd6bef0bd0fb
updated for version 7.3.1107
Bram Moolenaar <bram@vim.org>
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4718
diff
changeset
|
425 p++; |
| 4444 | 426 } |
| 427 | |
| 428 while (p < end) | |
| 429 { | |
| 430 if (p + 2 < end && *(p + 1) == '-') | |
| 431 { | |
| 432 switch (*p) | |
| 433 { | |
| 434 case '0': | |
| 435 if (*(p + 2) == '9') | |
| 436 { | |
| 437 o9 = TRUE; | |
| 438 break; | |
| 439 } | |
| 440 else | |
| 441 if (*(p + 2) == '7') | |
| 442 { | |
| 443 o7 = TRUE; | |
| 444 break; | |
| 445 } | |
| 446 case 'a': | |
| 447 if (*(p + 2) == 'z') | |
| 448 { | |
| 449 az = TRUE; | |
| 450 break; | |
| 451 } | |
| 452 else | |
| 453 if (*(p + 2) == 'f') | |
| 454 { | |
| 455 af = TRUE; | |
| 456 break; | |
| 457 } | |
| 458 case 'A': | |
| 459 if (*(p + 2) == 'Z') | |
| 460 { | |
| 461 AZ = TRUE; | |
| 462 break; | |
| 463 } | |
| 464 else | |
| 465 if (*(p + 2) == 'F') | |
| 466 { | |
| 467 AF = TRUE; | |
| 468 break; | |
| 469 } | |
| 470 /* FALLTHROUGH */ | |
| 471 default: | |
| 472 return FAIL; | |
| 473 } | |
| 474 p += 3; | |
| 475 } | |
| 476 else if (p + 1 < end && *p == '\\' && *(p + 1) == 'n') | |
| 477 { | |
| 478 newl = TRUE; | |
| 479 p += 2; | |
| 480 } | |
| 481 else if (*p == '_') | |
| 482 { | |
| 483 underscore = TRUE; | |
| 484 p ++; | |
| 485 } | |
| 486 else if (*p == '\n') | |
| 487 { | |
| 488 newl = TRUE; | |
| 489 p ++; | |
| 490 } | |
| 491 else | |
| 492 return FAIL; | |
| 493 } /* while (p < end) */ | |
| 494 | |
| 495 if (p != end) | |
| 496 return FAIL; | |
| 497 | |
| 498 /* build the config that represents the ranges we gathered */ | |
| 499 STRCPY(myconfig, "000000000"); | |
| 500 if (not == TRUE) | |
| 501 myconfig[0] = '1'; | |
| 502 if (af == TRUE) | |
| 503 myconfig[1] = '1'; | |
| 504 if (AF == TRUE) | |
| 505 myconfig[2] = '1'; | |
| 506 if (az == TRUE) | |
| 507 myconfig[3] = '1'; | |
| 508 if (AZ == TRUE) | |
| 509 myconfig[4] = '1'; | |
| 510 if (o7 == TRUE) | |
| 511 myconfig[5] = '1'; | |
| 512 if (o9 == TRUE) | |
| 513 myconfig[6] = '1'; | |
| 514 if (underscore == TRUE) | |
| 515 myconfig[7] = '1'; | |
| 516 if (newl == TRUE) | |
| 517 { | |
| 518 myconfig[8] = '1'; | |
| 519 extra_newl = ADD_NL; | |
| 520 } | |
| 521 /* try to recognize character classes */ | |
| 522 for (i = 0; i < NCONFIGS; i++) | |
| 4450 | 523 if (STRNCMP(myconfig, config[i], 8) == 0) |
| 4444 | 524 return classid[i] + extra_newl; |
| 525 | |
| 526 /* fallthrough => no success so far */ | |
| 527 return FAIL; | |
| 528 | |
| 529 #undef NCONFIGS | |
| 530 } | |
| 531 | |
| 532 /* | |
| 533 * Produce the bytes for equivalence class "c". | |
| 534 * Currently only handles latin1, latin9 and utf-8. | |
| 535 * Emits bytes in postfix notation: 'a,b,NFA_OR,c,NFA_OR' is | |
| 536 * equivalent to 'a OR b OR c' | |
| 537 * | |
| 538 * NOTE! When changing this function, also update reg_equi_class() | |
| 539 */ | |
| 540 static int | |
| 541 nfa_emit_equi_class(c, neg) | |
| 542 int c; | |
| 543 int neg; | |
| 544 { | |
| 545 int first = TRUE; | |
| 546 int glue = neg == TRUE ? NFA_CONCAT : NFA_OR; | |
| 547 #define EMIT2(c) \ | |
| 548 EMIT(c); \ | |
| 549 if (neg == TRUE) { \ | |
| 550 EMIT(NFA_NOT); \ | |
| 551 } \ | |
| 552 if (first == FALSE) \ | |
| 553 EMIT(glue); \ | |
| 554 else \ | |
| 555 first = FALSE; \ | |
| 556 | |
| 557 #ifdef FEAT_MBYTE | |
| 558 if (enc_utf8 || STRCMP(p_enc, "latin1") == 0 | |
| 559 || STRCMP(p_enc, "iso-8859-15") == 0) | |
| 560 #endif | |
| 561 { | |
| 562 switch (c) | |
| 563 { | |
| 564 case 'A': case '\300': case '\301': case '\302': | |
| 565 case '\303': case '\304': case '\305': | |
| 566 EMIT2('A'); EMIT2('\300'); EMIT2('\301'); | |
| 567 EMIT2('\302'); EMIT2('\303'); EMIT2('\304'); | |
| 568 EMIT2('\305'); | |
| 569 return OK; | |
| 570 | |
| 571 case 'C': case '\307': | |
| 572 EMIT2('C'); EMIT2('\307'); | |
| 573 return OK; | |
| 574 | |
| 575 case 'E': case '\310': case '\311': case '\312': case '\313': | |
| 576 EMIT2('E'); EMIT2('\310'); EMIT2('\311'); | |
| 577 EMIT2('\312'); EMIT2('\313'); | |
| 578 return OK; | |
| 579 | |
| 580 case 'I': case '\314': case '\315': case '\316': case '\317': | |
| 581 EMIT2('I'); EMIT2('\314'); EMIT2('\315'); | |
| 582 EMIT2('\316'); EMIT2('\317'); | |
| 583 return OK; | |
| 584 | |
| 585 case 'N': case '\321': | |
| 586 EMIT2('N'); EMIT2('\321'); | |
| 587 return OK; | |
| 588 | |
| 589 case 'O': case '\322': case '\323': case '\324': case '\325': | |
| 590 case '\326': | |
| 591 EMIT2('O'); EMIT2('\322'); EMIT2('\323'); | |
| 592 EMIT2('\324'); EMIT2('\325'); EMIT2('\326'); | |
| 593 return OK; | |
| 594 | |
| 595 case 'U': case '\331': case '\332': case '\333': case '\334': | |
| 596 EMIT2('U'); EMIT2('\331'); EMIT2('\332'); | |
| 597 EMIT2('\333'); EMIT2('\334'); | |
| 598 return OK; | |
| 599 | |
| 600 case 'Y': case '\335': | |
| 601 EMIT2('Y'); EMIT2('\335'); | |
| 602 return OK; | |
| 603 | |
| 604 case 'a': case '\340': case '\341': case '\342': | |
| 605 case '\343': case '\344': case '\345': | |
| 606 EMIT2('a'); EMIT2('\340'); EMIT2('\341'); | |
| 607 EMIT2('\342'); EMIT2('\343'); EMIT2('\344'); | |
| 608 EMIT2('\345'); | |
| 609 return OK; | |
| 610 | |
| 611 case 'c': case '\347': | |
| 612 EMIT2('c'); EMIT2('\347'); | |
| 613 return OK; | |
| 614 | |
| 615 case 'e': case '\350': case '\351': case '\352': case '\353': | |
| 616 EMIT2('e'); EMIT2('\350'); EMIT2('\351'); | |
| 617 EMIT2('\352'); EMIT2('\353'); | |
| 618 return OK; | |
| 619 | |
| 620 case 'i': case '\354': case '\355': case '\356': case '\357': | |
| 621 EMIT2('i'); EMIT2('\354'); EMIT2('\355'); | |
| 622 EMIT2('\356'); EMIT2('\357'); | |
| 623 return OK; | |
| 624 | |
| 625 case 'n': case '\361': | |
| 626 EMIT2('n'); EMIT2('\361'); | |
| 627 return OK; | |
| 628 | |
| 629 case 'o': case '\362': case '\363': case '\364': case '\365': | |
| 630 case '\366': | |
| 631 EMIT2('o'); EMIT2('\362'); EMIT2('\363'); | |
| 632 EMIT2('\364'); EMIT2('\365'); EMIT2('\366'); | |
| 633 return OK; | |
| 634 | |
| 635 case 'u': case '\371': case '\372': case '\373': case '\374': | |
| 636 EMIT2('u'); EMIT2('\371'); EMIT2('\372'); | |
| 637 EMIT2('\373'); EMIT2('\374'); | |
| 638 return OK; | |
| 639 | |
| 640 case 'y': case '\375': case '\377': | |
| 641 EMIT2('y'); EMIT2('\375'); EMIT2('\377'); | |
| 642 return OK; | |
| 643 | |
| 644 default: | |
| 645 return FAIL; | |
| 646 } | |
| 647 } | |
| 648 | |
| 649 EMIT(c); | |
| 650 return OK; | |
| 651 #undef EMIT2 | |
| 652 } | |
| 653 | |
| 654 /* | |
| 655 * Code to parse regular expression. | |
| 656 * | |
| 657 * We try to reuse parsing functions in regexp.c to | |
| 658 * minimize surprise and keep the syntax consistent. | |
| 659 */ | |
| 660 | |
| 661 /* | |
| 662 * Parse the lowest level. | |
| 663 * | |
| 664 * An atom can be one of a long list of items. Many atoms match one character | |
| 665 * in the text. It is often an ordinary character or a character class. | |
| 666 * Braces can be used to make a pattern into an atom. The "\z(\)" construct | |
| 667 * is only for syntax highlighting. | |
| 668 * | |
| 669 * atom ::= ordinary-atom | |
| 670 * or \( pattern \) | |
| 671 * or \%( pattern \) | |
| 672 * or \z( pattern \) | |
| 673 */ | |
| 674 static int | |
| 675 nfa_regatom() | |
| 676 { | |
| 677 int c; | |
| 678 int charclass; | |
| 679 int equiclass; | |
| 680 int collclass; | |
| 681 int got_coll_char; | |
| 682 char_u *p; | |
| 683 char_u *endp; | |
| 684 #ifdef FEAT_MBYTE | |
| 685 char_u *old_regparse = regparse; | |
| 686 #endif | |
| 687 int extra = 0; | |
| 688 int first; | |
| 689 int emit_range; | |
| 690 int negated; | |
| 691 int result; | |
| 692 int startc = -1; | |
| 693 int endc = -1; | |
| 694 int oldstartc = -1; | |
| 695 int cpo_lit; /* 'cpoptions' contains 'l' flag */ | |
| 696 int cpo_bsl; /* 'cpoptions' contains '\' flag */ | |
| 697 int glue; /* ID that will "glue" nodes together */ | |
| 698 | |
| 699 cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL; | |
| 700 cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL; | |
| 701 | |
| 702 c = getchr(); | |
| 703 switch (c) | |
| 704 { | |
|
4543
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updated for version 7.3.1019
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4541
diff
changeset
|
705 case NUL: |
|
08ac46980953
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4541
diff
changeset
|
706 syntax_error = TRUE; |
|
08ac46980953
updated for version 7.3.1019
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4541
diff
changeset
|
707 EMSG_RET_FAIL(_("E865: (NFA) Regexp end encountered prematurely")); |
|
08ac46980953
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4541
diff
changeset
|
708 |
| 4444 | 709 case Magic('^'): |
| 710 EMIT(NFA_BOL); | |
| 711 break; | |
| 712 | |
| 713 case Magic('$'): | |
| 714 EMIT(NFA_EOL); | |
| 715 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 716 had_eol = TRUE; | |
| 717 #endif | |
| 718 break; | |
| 719 | |
| 720 case Magic('<'): | |
| 721 EMIT(NFA_BOW); | |
| 722 break; | |
| 723 | |
| 724 case Magic('>'): | |
| 725 EMIT(NFA_EOW); | |
| 726 break; | |
| 727 | |
| 728 case Magic('_'): | |
| 729 c = no_Magic(getchr()); | |
| 730 if (c == '^') /* "\_^" is start-of-line */ | |
| 731 { | |
| 732 EMIT(NFA_BOL); | |
| 733 break; | |
| 734 } | |
| 735 if (c == '$') /* "\_$" is end-of-line */ | |
| 736 { | |
| 737 EMIT(NFA_EOL); | |
| 738 #if defined(FEAT_SYN_HL) || defined(PROTO) | |
| 739 had_eol = TRUE; | |
| 740 #endif | |
| 741 break; | |
| 742 } | |
| 743 | |
| 744 extra = ADD_NL; | |
| 745 | |
| 746 /* "\_[" is collection plus newline */ | |
| 747 if (c == '[') | |
|
4517
9a2183bd8295
updated for version 7.3.1006
Bram Moolenaar <bram@vim.org>
parents:
4515
diff
changeset
|
748 goto collection; |
| 4444 | 749 |
| 750 /* "\_x" is character class plus newline */ | |
| 751 /*FALLTHROUGH*/ | |
| 752 | |
| 753 /* | |
| 754 * Character classes. | |
| 755 */ | |
| 756 case Magic('.'): | |
| 757 case Magic('i'): | |
| 758 case Magic('I'): | |
| 759 case Magic('k'): | |
| 760 case Magic('K'): | |
| 761 case Magic('f'): | |
| 762 case Magic('F'): | |
| 763 case Magic('p'): | |
| 764 case Magic('P'): | |
| 765 case Magic('s'): | |
| 766 case Magic('S'): | |
| 767 case Magic('d'): | |
| 768 case Magic('D'): | |
| 769 case Magic('x'): | |
| 770 case Magic('X'): | |
| 771 case Magic('o'): | |
| 772 case Magic('O'): | |
| 773 case Magic('w'): | |
| 774 case Magic('W'): | |
| 775 case Magic('h'): | |
| 776 case Magic('H'): | |
| 777 case Magic('a'): | |
| 778 case Magic('A'): | |
| 779 case Magic('l'): | |
| 780 case Magic('L'): | |
| 781 case Magic('u'): | |
| 782 case Magic('U'): | |
| 783 p = vim_strchr(classchars, no_Magic(c)); | |
| 784 if (p == NULL) | |
| 785 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
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parents:
4569
diff
changeset
|
786 EMSGN("INTERNAL: Unknown character class char: %ld", c); |
|
b2a8e3a66f8c
updated for version 7.3.1033
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parents:
4569
diff
changeset
|
787 return FAIL; |
| 4444 | 788 } |
| 789 #ifdef FEAT_MBYTE | |
| 790 /* When '.' is followed by a composing char ignore the dot, so that | |
| 791 * the composing char is matched here. */ | |
| 792 if (enc_utf8 && c == Magic('.') && utf_iscomposing(peekchr())) | |
| 793 { | |
|
4535
45f97c349537
updated for version 7.3.1015
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parents:
4533
diff
changeset
|
794 old_regparse = regparse; |
| 4444 | 795 c = getchr(); |
| 796 goto nfa_do_multibyte; | |
| 797 } | |
| 798 #endif | |
| 799 EMIT(nfa_classcodes[p - classchars]); | |
| 800 if (extra == ADD_NL) | |
| 801 { | |
| 802 EMIT(NFA_NEWL); | |
| 803 EMIT(NFA_OR); | |
| 804 regflags |= RF_HASNL; | |
| 805 } | |
| 806 break; | |
| 807 | |
| 808 case Magic('n'): | |
| 809 if (reg_string) | |
| 810 /* In a string "\n" matches a newline character. */ | |
| 811 EMIT(NL); | |
| 812 else | |
| 813 { | |
| 814 /* In buffer text "\n" matches the end of a line. */ | |
| 815 EMIT(NFA_NEWL); | |
| 816 regflags |= RF_HASNL; | |
| 817 } | |
| 818 break; | |
| 819 | |
| 820 case Magic('('): | |
| 821 if (nfa_reg(REG_PAREN) == FAIL) | |
| 822 return FAIL; /* cascaded error */ | |
| 823 break; | |
| 824 | |
| 825 case Magic('|'): | |
| 826 case Magic('&'): | |
| 827 case Magic(')'): | |
| 828 syntax_error = TRUE; | |
| 4450 | 829 EMSGN(_(e_misplaced), no_Magic(c)); |
| 4444 | 830 return FAIL; |
| 831 | |
| 832 case Magic('='): | |
| 833 case Magic('?'): | |
| 834 case Magic('+'): | |
| 835 case Magic('@'): | |
| 836 case Magic('*'): | |
| 837 case Magic('{'): | |
| 838 /* these should follow an atom, not form an atom */ | |
| 839 syntax_error = TRUE; | |
| 4450 | 840 EMSGN(_(e_misplaced), no_Magic(c)); |
| 4444 | 841 return FAIL; |
| 842 | |
|
4714
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
843 case Magic('~'): |
|
fc4d7f02ea3a
updated for version 7.3.1104
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parents:
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diff
changeset
|
844 { |
|
fc4d7f02ea3a
updated for version 7.3.1104
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parents:
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diff
changeset
|
845 char_u *lp; |
|
fc4d7f02ea3a
updated for version 7.3.1104
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parents:
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diff
changeset
|
846 |
|
fc4d7f02ea3a
updated for version 7.3.1104
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parents:
4712
diff
changeset
|
847 /* Previous substitute pattern. |
|
fc4d7f02ea3a
updated for version 7.3.1104
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parents:
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diff
changeset
|
848 * Generated as "\%(pattern\)". */ |
|
fc4d7f02ea3a
updated for version 7.3.1104
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diff
changeset
|
849 if (reg_prev_sub == NULL) |
|
fc4d7f02ea3a
updated for version 7.3.1104
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parents:
4712
diff
changeset
|
850 { |
|
fc4d7f02ea3a
updated for version 7.3.1104
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parents:
4712
diff
changeset
|
851 EMSG(_(e_nopresub)); |
|
fc4d7f02ea3a
updated for version 7.3.1104
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parents:
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diff
changeset
|
852 return FAIL; |
|
fc4d7f02ea3a
updated for version 7.3.1104
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parents:
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diff
changeset
|
853 } |
|
fc4d7f02ea3a
updated for version 7.3.1104
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parents:
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diff
changeset
|
854 for (lp = reg_prev_sub; *lp != NUL; mb_cptr_adv(lp)) |
|
fc4d7f02ea3a
updated for version 7.3.1104
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diff
changeset
|
855 { |
|
fc4d7f02ea3a
updated for version 7.3.1104
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diff
changeset
|
856 EMIT(PTR2CHAR(lp)); |
|
fc4d7f02ea3a
updated for version 7.3.1104
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parents:
4712
diff
changeset
|
857 if (lp != reg_prev_sub) |
|
fc4d7f02ea3a
updated for version 7.3.1104
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diff
changeset
|
858 EMIT(NFA_CONCAT); |
|
fc4d7f02ea3a
updated for version 7.3.1104
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parents:
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diff
changeset
|
859 } |
|
fc4d7f02ea3a
updated for version 7.3.1104
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diff
changeset
|
860 EMIT(NFA_NOPEN); |
|
fc4d7f02ea3a
updated for version 7.3.1104
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parents:
4712
diff
changeset
|
861 break; |
|
fc4d7f02ea3a
updated for version 7.3.1104
Bram Moolenaar <bram@vim.org>
parents:
4712
diff
changeset
|
862 } |
| 4444 | 863 |
|
4647
857f6c53f117
updated for version 7.3.1071
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parents:
4615
diff
changeset
|
864 case Magic('1'): |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
865 case Magic('2'): |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
866 case Magic('3'): |
|
857f6c53f117
updated for version 7.3.1071
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parents:
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diff
changeset
|
867 case Magic('4'): |
|
857f6c53f117
updated for version 7.3.1071
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parents:
4615
diff
changeset
|
868 case Magic('5'): |
|
857f6c53f117
updated for version 7.3.1071
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parents:
4615
diff
changeset
|
869 case Magic('6'): |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
870 case Magic('7'): |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
871 case Magic('8'): |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
872 case Magic('9'): |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
873 EMIT(NFA_BACKREF1 + (no_Magic(c) - '1')); |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
874 nfa_has_backref = TRUE; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
875 break; |
| 4444 | 876 |
| 877 case Magic('z'): | |
| 878 c = no_Magic(getchr()); | |
| 879 switch (c) | |
| 880 { | |
| 881 case 's': | |
| 882 EMIT(NFA_ZSTART); | |
| 883 break; | |
| 884 case 'e': | |
| 885 EMIT(NFA_ZEND); | |
| 886 nfa_has_zend = TRUE; | |
|
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
887 break; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
888 #ifdef FEAT_SYN_HL |
| 4444 | 889 case '1': |
| 890 case '2': | |
| 891 case '3': | |
| 892 case '4': | |
| 893 case '5': | |
| 894 case '6': | |
| 895 case '7': | |
| 896 case '8': | |
| 897 case '9': | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
898 /* \z1...\z9 */ |
|
4688
371cc0c44097
updated for version 7.3.1091
Bram Moolenaar <bram@vim.org>
parents:
4686
diff
changeset
|
899 if (reg_do_extmatch != REX_USE) |
|
371cc0c44097
updated for version 7.3.1091
Bram Moolenaar <bram@vim.org>
parents:
4686
diff
changeset
|
900 EMSG_RET_FAIL(_(e_z1_not_allowed)); |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
901 EMIT(NFA_ZREF1 + (no_Magic(c) - '1')); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
902 /* No need to set nfa_has_backref, the sub-matches don't |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
903 * change when \z1 .. \z9 maches or not. */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
904 re_has_z = REX_USE; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
905 break; |
| 4444 | 906 case '(': |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
907 /* \z( */ |
|
4688
371cc0c44097
updated for version 7.3.1091
Bram Moolenaar <bram@vim.org>
parents:
4686
diff
changeset
|
908 if (reg_do_extmatch != REX_SET) |
|
371cc0c44097
updated for version 7.3.1091
Bram Moolenaar <bram@vim.org>
parents:
4686
diff
changeset
|
909 EMSG_RET_FAIL(_(e_z_not_allowed)); |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
910 if (nfa_reg(REG_ZPAREN) == FAIL) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
911 return FAIL; /* cascaded error */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
912 re_has_z = REX_SET; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
913 break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
914 #endif |
| 4444 | 915 default: |
| 916 syntax_error = TRUE; | |
| 4450 | 917 EMSGN(_("E867: (NFA) Unknown operator '\\z%c'"), |
| 4444 | 918 no_Magic(c)); |
| 919 return FAIL; | |
| 920 } | |
| 921 break; | |
| 922 | |
| 923 case Magic('%'): | |
| 924 c = no_Magic(getchr()); | |
| 925 switch (c) | |
| 926 { | |
| 927 /* () without a back reference */ | |
| 928 case '(': | |
| 929 if (nfa_reg(REG_NPAREN) == FAIL) | |
| 930 return FAIL; | |
| 931 EMIT(NFA_NOPEN); | |
| 932 break; | |
| 933 | |
| 934 case 'd': /* %d123 decimal */ | |
| 935 case 'o': /* %o123 octal */ | |
| 936 case 'x': /* %xab hex 2 */ | |
| 937 case 'u': /* %uabcd hex 4 */ | |
| 938 case 'U': /* %U1234abcd hex 8 */ | |
|
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
939 { |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
940 int nr; |
|
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
941 |
|
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
942 switch (c) |
|
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
943 { |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
944 case 'd': nr = getdecchrs(); break; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
945 case 'o': nr = getoctchrs(); break; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
946 case 'x': nr = gethexchrs(2); break; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
947 case 'u': nr = gethexchrs(4); break; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
948 case 'U': nr = gethexchrs(8); break; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
949 default: nr = -1; break; |
|
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
950 } |
|
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
951 |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
952 if (nr < 0) |
|
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
953 EMSG2_RET_FAIL( |
|
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
954 _("E678: Invalid character after %s%%[dxouU]"), |
|
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
955 reg_magic == MAGIC_ALL); |
|
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
956 /* TODO: what if a composing character follows? */ |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
957 EMIT(nr); |
|
4543
08ac46980953
updated for version 7.3.1019
Bram Moolenaar <bram@vim.org>
parents:
4541
diff
changeset
|
958 } |
| 4444 | 959 break; |
| 960 | |
| 961 /* Catch \%^ and \%$ regardless of where they appear in the | |
| 962 * pattern -- regardless of whether or not it makes sense. */ | |
| 963 case '^': | |
| 964 EMIT(NFA_BOF); | |
| 965 break; | |
| 966 | |
| 967 case '$': | |
| 968 EMIT(NFA_EOF); | |
| 969 break; | |
| 970 | |
| 971 case '#': | |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
972 EMIT(NFA_CURSOR); |
| 4444 | 973 break; |
| 974 | |
| 975 case 'V': | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
976 /* TODO: not supported yet */ |
| 4444 | 977 return FAIL; |
| 978 break; | |
| 979 | |
| 980 case '[': | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
981 /* TODO: \%[abc] not supported yet */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
982 return FAIL; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
983 |
| 4444 | 984 default: |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
985 { |
|
4655
779ca415f8e1
updated for version 7.3.1075
Bram Moolenaar <bram@vim.org>
parents:
4651
diff
changeset
|
986 int n = 0; |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
987 int cmp = c; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
988 |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
989 if (c == '<' || c == '>') |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
990 c = getchr(); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
991 while (VIM_ISDIGIT(c)) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
992 { |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
993 n = n * 10 + (c - '0'); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
994 c = getchr(); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
995 } |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
996 if (c == 'l' || c == 'c' || c == 'v') |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
997 { |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
998 EMIT(n); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
999 if (c == 'l') |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1000 EMIT(cmp == '<' ? NFA_LNUM_LT : |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1001 cmp == '>' ? NFA_LNUM_GT : NFA_LNUM); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1002 else if (c == 'c') |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1003 EMIT(cmp == '<' ? NFA_COL_LT : |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1004 cmp == '>' ? NFA_COL_GT : NFA_COL); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1005 else |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1006 EMIT(cmp == '<' ? NFA_VCOL_LT : |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1007 cmp == '>' ? NFA_VCOL_GT : NFA_VCOL); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1008 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1009 } |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1010 else if (c == '\'') |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1011 /* TODO: \%'m not supported yet */ |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1012 return FAIL; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
1013 } |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
1014 syntax_error = TRUE; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
1015 EMSGN(_("E867: (NFA) Unknown operator '\\%%%c'"), |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
1016 no_Magic(c)); |
| 4444 | 1017 return FAIL; |
| 1018 } | |
| 1019 break; | |
| 1020 | |
| 1021 case Magic('['): | |
|
4517
9a2183bd8295
updated for version 7.3.1006
Bram Moolenaar <bram@vim.org>
parents:
4515
diff
changeset
|
1022 collection: |
| 4444 | 1023 /* |
| 1024 * Glue is emitted between several atoms from the []. | |
| 1025 * It is either NFA_OR, or NFA_CONCAT. | |
| 1026 * | |
| 1027 * [abc] expands to 'a b NFA_OR c NFA_OR' (in postfix notation) | |
| 1028 * [^abc] expands to 'a NFA_NOT b NFA_NOT NFA_CONCAT c NFA_NOT | |
| 1029 * NFA_CONCAT NFA_END_NEG_RANGE NFA_CONCAT' (in postfix | |
| 1030 * notation) | |
| 1031 * | |
| 1032 */ | |
| 1033 | |
| 1034 | |
| 1035 /* Emit negation atoms, if needed. | |
| 1036 * The CONCAT below merges the NOT with the previous node. */ | |
| 1037 #define TRY_NEG() \ | |
| 1038 if (negated == TRUE) \ | |
| 1039 { \ | |
| 1040 EMIT(NFA_NOT); \ | |
| 1041 } | |
| 1042 | |
| 1043 /* Emit glue between important nodes : CONCAT or OR. */ | |
| 1044 #define EMIT_GLUE() \ | |
| 1045 if (first == FALSE) \ | |
| 1046 EMIT(glue); \ | |
| 1047 else \ | |
| 1048 first = FALSE; | |
| 1049 | |
| 1050 p = regparse; | |
| 1051 endp = skip_anyof(p); | |
| 1052 if (*endp == ']') | |
| 1053 { | |
| 1054 /* | |
| 1055 * Try to reverse engineer character classes. For example, | |
| 1056 * recognize that [0-9] stands for \d and [A-Za-z_] with \h, | |
| 1057 * and perform the necessary substitutions in the NFA. | |
| 1058 */ | |
| 1059 result = nfa_recognize_char_class(regparse, endp, | |
| 1060 extra == ADD_NL); | |
| 1061 if (result != FAIL) | |
| 1062 { | |
| 1063 if (result >= NFA_DIGIT && result <= NFA_NUPPER) | |
| 1064 EMIT(result); | |
| 1065 else /* must be char class + newline */ | |
| 1066 { | |
| 1067 EMIT(result - ADD_NL); | |
| 1068 EMIT(NFA_NEWL); | |
| 1069 EMIT(NFA_OR); | |
| 1070 } | |
| 1071 regparse = endp; | |
|
4573
37e444aeb33b
updated for version 7.3.1034
Bram Moolenaar <bram@vim.org>
parents:
4571
diff
changeset
|
1072 mb_ptr_adv(regparse); |
| 4444 | 1073 return OK; |
| 1074 } | |
| 1075 /* | |
| 1076 * Failed to recognize a character class. Use the simple | |
| 1077 * version that turns [abc] into 'a' OR 'b' OR 'c' | |
| 1078 */ | |
| 1079 startc = endc = oldstartc = -1; | |
| 1080 first = TRUE; /* Emitting first atom in this sequence? */ | |
| 1081 negated = FALSE; | |
| 1082 glue = NFA_OR; | |
| 1083 if (*regparse == '^') /* negated range */ | |
| 1084 { | |
| 1085 negated = TRUE; | |
| 1086 glue = NFA_CONCAT; | |
|
4573
37e444aeb33b
updated for version 7.3.1034
Bram Moolenaar <bram@vim.org>
parents:
4571
diff
changeset
|
1087 mb_ptr_adv(regparse); |
| 4444 | 1088 } |
| 1089 if (*regparse == '-') | |
| 1090 { | |
| 1091 startc = '-'; | |
| 1092 EMIT(startc); | |
| 1093 TRY_NEG(); | |
| 1094 EMIT_GLUE(); | |
|
4573
37e444aeb33b
updated for version 7.3.1034
Bram Moolenaar <bram@vim.org>
parents:
4571
diff
changeset
|
1095 mb_ptr_adv(regparse); |
| 4444 | 1096 } |
| 1097 /* Emit the OR branches for each character in the [] */ | |
| 1098 emit_range = FALSE; | |
| 1099 while (regparse < endp) | |
| 1100 { | |
| 1101 oldstartc = startc; | |
| 1102 startc = -1; | |
| 1103 got_coll_char = FALSE; | |
| 1104 if (*regparse == '[') | |
| 1105 { | |
| 1106 /* Check for [: :], [= =], [. .] */ | |
| 1107 equiclass = collclass = 0; | |
| 1108 charclass = get_char_class(®parse); | |
| 1109 if (charclass == CLASS_NONE) | |
| 1110 { | |
| 1111 equiclass = get_equi_class(®parse); | |
| 1112 if (equiclass == 0) | |
| 1113 collclass = get_coll_element(®parse); | |
| 1114 } | |
| 1115 | |
| 1116 /* Character class like [:alpha:] */ | |
| 1117 if (charclass != CLASS_NONE) | |
| 1118 { | |
| 1119 switch (charclass) | |
| 1120 { | |
| 1121 case CLASS_ALNUM: | |
| 1122 EMIT(NFA_CLASS_ALNUM); | |
| 1123 break; | |
| 1124 case CLASS_ALPHA: | |
| 1125 EMIT(NFA_CLASS_ALPHA); | |
| 1126 break; | |
| 1127 case CLASS_BLANK: | |
| 1128 EMIT(NFA_CLASS_BLANK); | |
| 1129 break; | |
| 1130 case CLASS_CNTRL: | |
| 1131 EMIT(NFA_CLASS_CNTRL); | |
| 1132 break; | |
| 1133 case CLASS_DIGIT: | |
| 1134 EMIT(NFA_CLASS_DIGIT); | |
| 1135 break; | |
| 1136 case CLASS_GRAPH: | |
| 1137 EMIT(NFA_CLASS_GRAPH); | |
| 1138 break; | |
| 1139 case CLASS_LOWER: | |
| 1140 EMIT(NFA_CLASS_LOWER); | |
| 1141 break; | |
| 1142 case CLASS_PRINT: | |
| 1143 EMIT(NFA_CLASS_PRINT); | |
| 1144 break; | |
| 1145 case CLASS_PUNCT: | |
| 1146 EMIT(NFA_CLASS_PUNCT); | |
| 1147 break; | |
| 1148 case CLASS_SPACE: | |
| 1149 EMIT(NFA_CLASS_SPACE); | |
| 1150 break; | |
| 1151 case CLASS_UPPER: | |
| 1152 EMIT(NFA_CLASS_UPPER); | |
| 1153 break; | |
| 1154 case CLASS_XDIGIT: | |
| 1155 EMIT(NFA_CLASS_XDIGIT); | |
| 1156 break; | |
| 1157 case CLASS_TAB: | |
| 1158 EMIT(NFA_CLASS_TAB); | |
| 1159 break; | |
| 1160 case CLASS_RETURN: | |
| 1161 EMIT(NFA_CLASS_RETURN); | |
| 1162 break; | |
| 1163 case CLASS_BACKSPACE: | |
| 1164 EMIT(NFA_CLASS_BACKSPACE); | |
| 1165 break; | |
| 1166 case CLASS_ESCAPE: | |
| 1167 EMIT(NFA_CLASS_ESCAPE); | |
| 1168 break; | |
| 1169 } | |
| 1170 TRY_NEG(); | |
| 1171 EMIT_GLUE(); | |
| 1172 continue; | |
| 1173 } | |
| 1174 /* Try equivalence class [=a=] and the like */ | |
| 1175 if (equiclass != 0) | |
| 1176 { | |
| 1177 result = nfa_emit_equi_class(equiclass, negated); | |
| 1178 if (result == FAIL) | |
| 1179 { | |
| 1180 /* should never happen */ | |
| 1181 EMSG_RET_FAIL(_("E868: Error building NFA with equivalence class!")); | |
| 1182 } | |
| 1183 EMIT_GLUE(); | |
| 1184 continue; | |
| 1185 } | |
| 1186 /* Try collating class like [. .] */ | |
| 1187 if (collclass != 0) | |
| 1188 { | |
| 1189 startc = collclass; /* allow [.a.]-x as a range */ | |
| 1190 /* Will emit the proper atom at the end of the | |
| 1191 * while loop. */ | |
| 1192 } | |
| 1193 } | |
|
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|
1194 /* Try a range like 'a-x' or '\t-z'. Also allows '-' as a |
|
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|
1195 * start character. */ |
|
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|
1196 if (*regparse == '-' && oldstartc != -1) |
| 4444 | 1197 { |
| 1198 emit_range = TRUE; | |
| 1199 startc = oldstartc; | |
|
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|
1200 mb_ptr_adv(regparse); |
| 4444 | 1201 continue; /* reading the end of the range */ |
| 1202 } | |
| 1203 | |
| 1204 /* Now handle simple and escaped characters. | |
| 1205 * Only "\]", "\^", "\]" and "\\" are special in Vi. Vim | |
| 1206 * accepts "\t", "\e", etc., but only when the 'l' flag in | |
| 1207 * 'cpoptions' is not included. | |
| 1208 * Posix doesn't recognize backslash at all. | |
| 1209 */ | |
| 1210 if (*regparse == '\\' | |
| 1211 && !cpo_bsl | |
| 1212 && regparse + 1 <= endp | |
| 1213 && (vim_strchr(REGEXP_INRANGE, regparse[1]) != NULL | |
| 1214 || (!cpo_lit | |
| 1215 && vim_strchr(REGEXP_ABBR, regparse[1]) | |
| 1216 != NULL) | |
| 1217 ) | |
| 1218 ) | |
| 1219 { | |
|
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|
1220 mb_ptr_adv(regparse); |
| 4444 | 1221 |
|
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9dbbddb2ed10
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4503
diff
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|
1222 if (*regparse == 'n') |
| 4444 | 1223 startc = reg_string ? NL : NFA_NEWL; |
| 1224 else | |
| 1225 if (*regparse == 'd' | |
| 1226 || *regparse == 'o' | |
| 1227 || *regparse == 'x' | |
| 1228 || *regparse == 'u' | |
| 1229 || *regparse == 'U' | |
| 1230 ) | |
| 1231 { | |
| 1232 /* TODO(RE) This needs more testing */ | |
| 1233 startc = coll_get_char(); | |
| 1234 got_coll_char = TRUE; | |
|
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|
1235 mb_ptr_back(old_regparse, regparse); |
| 4444 | 1236 } |
| 1237 else | |
| 1238 { | |
| 1239 /* \r,\t,\e,\b */ | |
| 1240 startc = backslash_trans(*regparse); | |
| 1241 } | |
| 1242 } | |
| 1243 | |
| 1244 /* Normal printable char */ | |
| 1245 if (startc == -1) | |
|
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|
1246 startc = PTR2CHAR(regparse); |
| 4444 | 1247 |
| 1248 /* Previous char was '-', so this char is end of range. */ | |
| 1249 if (emit_range) | |
| 1250 { | |
|
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|
1251 endc = startc; |
|
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|
1252 startc = oldstartc; |
| 4444 | 1253 if (startc > endc) |
| 1254 EMSG_RET_FAIL(_(e_invrange)); | |
| 1255 #ifdef FEAT_MBYTE | |
| 1256 if (has_mbyte && ((*mb_char2len)(startc) > 1 | |
| 1257 || (*mb_char2len)(endc) > 1)) | |
| 1258 { | |
| 1259 if (endc > startc + 256) | |
| 1260 EMSG_RET_FAIL(_(e_invrange)); | |
| 1261 /* Emit the range. "startc" was already emitted, so | |
| 1262 * skip it. */ | |
| 1263 for (c = startc + 1; c <= endc; c++) | |
| 1264 { | |
|
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|
1265 EMIT(c); |
| 4444 | 1266 TRY_NEG(); |
| 1267 EMIT_GLUE(); | |
| 1268 } | |
| 1269 } | |
| 1270 else | |
| 1271 #endif | |
| 1272 { | |
| 1273 #ifdef EBCDIC | |
| 1274 int alpha_only = FALSE; | |
| 1275 | |
| 1276 /* for alphabetical range skip the gaps | |
| 1277 * 'i'-'j', 'r'-'s', 'I'-'J' and 'R'-'S'. */ | |
| 1278 if (isalpha(startc) && isalpha(endc)) | |
| 1279 alpha_only = TRUE; | |
| 1280 #endif | |
| 1281 /* Emit the range. "startc" was already emitted, so | |
| 1282 * skip it. */ | |
| 1283 for (c = startc + 1; c <= endc; c++) | |
| 1284 #ifdef EBCDIC | |
| 1285 if (!alpha_only || isalpha(startc)) | |
| 1286 #endif | |
| 1287 { | |
| 1288 EMIT(c); | |
| 1289 TRY_NEG(); | |
| 1290 EMIT_GLUE(); | |
| 1291 } | |
| 1292 } | |
|
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|
1293 emit_range = FALSE; |
|
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|
1294 startc = -1; |
| 4444 | 1295 } |
| 1296 else | |
| 1297 { | |
| 1298 /* | |
| 1299 * This char (startc) is not part of a range. Just | |
| 1300 * emit it. | |
| 1301 * | |
| 1302 * Normally, simply emit startc. But if we get char | |
| 1303 * code=0 from a collating char, then replace it with | |
| 1304 * 0x0a. | |
| 1305 * | |
| 1306 * This is needed to completely mimic the behaviour of | |
| 1307 * the backtracking engine. | |
| 1308 */ | |
| 1309 if (got_coll_char == TRUE && startc == 0) | |
| 1310 EMIT(0x0a); | |
| 1311 else | |
|
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|
1312 EMIT(startc); |
| 4444 | 1313 TRY_NEG(); |
| 1314 EMIT_GLUE(); | |
| 1315 } | |
| 1316 | |
|
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|
1317 mb_ptr_adv(regparse); |
| 4444 | 1318 } /* while (p < endp) */ |
| 1319 | |
|
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|
1320 mb_ptr_back(old_regparse, regparse); |
| 4444 | 1321 if (*regparse == '-') /* if last, '-' is just a char */ |
| 1322 { | |
| 1323 EMIT('-'); | |
| 1324 TRY_NEG(); | |
| 1325 EMIT_GLUE(); | |
| 1326 } | |
|
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|
1327 mb_ptr_adv(regparse); |
| 4444 | 1328 |
| 1329 /* skip the trailing ] */ | |
| 1330 regparse = endp; | |
|
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|
1331 mb_ptr_adv(regparse); |
| 4444 | 1332 if (negated == TRUE) |
| 1333 { | |
| 1334 /* Mark end of negated char range */ | |
| 1335 EMIT(NFA_END_NEG_RANGE); | |
| 1336 EMIT(NFA_CONCAT); | |
| 1337 } | |
|
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|
1338 |
|
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updated for version 7.3.1055
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|
1339 /* \_[] also matches \n but it's not negated */ |
|
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|
1340 if (extra == ADD_NL) |
|
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|
1341 { |
|
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|
1342 EMIT(reg_string ? NL : NFA_NEWL); |
|
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|
1343 EMIT(NFA_OR); |
|
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|
1344 } |
|
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|
1345 |
| 4444 | 1346 return OK; |
|
4529
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|
1347 } /* if exists closing ] */ |
|
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|
1348 |
|
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|
1349 if (reg_strict) |
| 4444 | 1350 { |
| 1351 syntax_error = TRUE; | |
| 1352 EMSG_RET_FAIL(_(e_missingbracket)); | |
| 1353 } | |
|
4529
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|
1354 /* FALLTHROUGH */ |
|
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|
1355 |
| 4444 | 1356 default: |
| 1357 { | |
| 1358 #ifdef FEAT_MBYTE | |
| 1359 int plen; | |
| 1360 | |
| 1361 nfa_do_multibyte: | |
|
4543
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updated for version 7.3.1019
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|
1362 /* plen is length of current char with composing chars */ |
|
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|
1363 if (enc_utf8 && ((*mb_char2len)(c) |
|
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|
1364 != (plen = (*mb_ptr2len)(old_regparse)) |
|
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|
1365 || utf_iscomposing(c))) |
| 4444 | 1366 { |
|
4549
849180347ac3
updated for version 7.3.1022
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|
1367 int i = 0; |
|
849180347ac3
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|
1368 |
|
4535
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updated for version 7.3.1015
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|
1369 /* A base character plus composing characters, or just one |
|
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|
1370 * or more composing characters. |
|
4527
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|
1371 * This requires creating a separate atom as if enclosing |
|
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|
1372 * the characters in (), where NFA_COMPOSING is the ( and |
|
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|
1373 * NFA_END_COMPOSING is the ). Note that right now we are |
| 4444 | 1374 * building the postfix form, not the NFA itself; |
| 1375 * a composing char could be: a, b, c, NFA_COMPOSING | |
|
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|
1376 * where 'b' and 'c' are chars with codes > 256. */ |
|
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|
1377 for (;;) |
|
55bcaa1d2749
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|
1378 { |
|
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|
1379 EMIT(c); |
|
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|
1380 if (i > 0) |
|
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|
1381 EMIT(NFA_CONCAT); |
|
4529
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|
1382 if ((i += utf_char2len(c)) >= plen) |
|
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|
1383 break; |
|
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|
1384 c = utf_ptr2char(old_regparse + i); |
|
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|
1385 } |
|
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|
1386 EMIT(NFA_COMPOSING); |
| 4444 | 1387 regparse = old_regparse + plen; |
| 1388 } | |
| 1389 else | |
| 1390 #endif | |
| 1391 { | |
| 1392 c = no_Magic(c); | |
| 1393 EMIT(c); | |
| 1394 } | |
| 1395 return OK; | |
| 1396 } | |
| 1397 } | |
| 1398 | |
| 1399 #undef TRY_NEG | |
| 1400 #undef EMIT_GLUE | |
| 1401 | |
| 1402 return OK; | |
| 1403 } | |
| 1404 | |
| 1405 /* | |
| 1406 * Parse something followed by possible [*+=]. | |
| 1407 * | |
| 1408 * A piece is an atom, possibly followed by a multi, an indication of how many | |
| 1409 * times the atom can be matched. Example: "a*" matches any sequence of "a" | |
| 1410 * characters: "", "a", "aa", etc. | |
| 1411 * | |
| 1412 * piece ::= atom | |
| 1413 * or atom multi | |
| 1414 */ | |
| 1415 static int | |
| 1416 nfa_regpiece() | |
| 1417 { | |
| 1418 int i; | |
| 1419 int op; | |
| 1420 int ret; | |
| 1421 long minval, maxval; | |
| 1422 int greedy = TRUE; /* Braces are prefixed with '-' ? */ | |
|
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|
1423 parse_state_T old_state; |
|
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|
1424 parse_state_T new_state; |
| 4444 | 1425 int c2; |
|
4651
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|
1426 int old_post_pos; |
|
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|
1427 int my_post_start; |
| 4444 | 1428 int quest; |
| 1429 | |
|
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|
1430 /* Save the current parse state, so that we can use it if <atom>{m,n} is |
|
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|
1431 * next. */ |
|
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|
1432 save_parse_state(&old_state); |
|
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|
1433 |
| 4444 | 1434 /* store current pos in the postfix form, for \{m,n} involving 0s */ |
|
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|
1435 my_post_start = (int)(post_ptr - post_start); |
| 4444 | 1436 |
| 1437 ret = nfa_regatom(); | |
| 1438 if (ret == FAIL) | |
| 1439 return FAIL; /* cascaded error */ | |
| 1440 | |
| 1441 op = peekchr(); | |
| 1442 if (re_multi_type(op) == NOT_MULTI) | |
| 1443 return OK; | |
| 1444 | |
| 1445 skipchr(); | |
| 1446 switch (op) | |
| 1447 { | |
| 1448 case Magic('*'): | |
| 1449 EMIT(NFA_STAR); | |
| 1450 break; | |
| 1451 | |
| 1452 case Magic('+'): | |
| 1453 /* | |
| 1454 * Trick: Normally, (a*)\+ would match the whole input "aaa". The | |
| 1455 * first and only submatch would be "aaa". But the backtracking | |
| 1456 * engine interprets the plus as "try matching one more time", and | |
| 1457 * a* matches a second time at the end of the input, the empty | |
| 1458 * string. | |
| 1459 * The submatch will the empty string. | |
| 1460 * | |
|
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|
1461 * In order to be consistent with the old engine, we replace |
|
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|
1462 * <atom>+ with <atom><atom>* |
| 4444 | 1463 */ |
|
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|
1464 restore_parse_state(&old_state); |
| 4444 | 1465 curchr = -1; |
| 1466 if (nfa_regatom() == FAIL) | |
| 1467 return FAIL; | |
| 1468 EMIT(NFA_STAR); | |
| 1469 EMIT(NFA_CONCAT); | |
| 1470 skipchr(); /* skip the \+ */ | |
| 1471 break; | |
| 1472 | |
| 1473 case Magic('@'): | |
|
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|
1474 c2 = getdecchrs(); |
| 4444 | 1475 op = no_Magic(getchr()); |
|
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|
1476 i = 0; |
| 4444 | 1477 switch(op) |
| 1478 { | |
| 1479 case '=': | |
|
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|
1480 /* \@= */ |
|
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|
1481 i = NFA_PREV_ATOM_NO_WIDTH; |
| 4444 | 1482 break; |
|
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|
1483 case '!': |
|
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|
1484 /* \@! */ |
|
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|
1485 i = NFA_PREV_ATOM_NO_WIDTH_NEG; |
|
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|
1486 break; |
| 4444 | 1487 case '<': |
|
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1488 op = no_Magic(getchr()); |
|
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|
1489 if (op == '=') |
|
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|
1490 /* \@<= */ |
|
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|
1491 i = NFA_PREV_ATOM_JUST_BEFORE; |
|
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|
1492 else if (op == '!') |
|
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|
1493 /* \@<! */ |
|
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|
1494 i = NFA_PREV_ATOM_JUST_BEFORE_NEG; |
|
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|
1495 break; |
| 4444 | 1496 case '>': |
|
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|
1497 /* \@> Not supported yet */ |
|
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|
1498 /* i = NFA_PREV_ATOM_LIKE_PATTERN; */ |
| 4444 | 1499 return FAIL; |
| 1500 } | |
|
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|
1501 if (i == 0) |
|
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|
1502 { |
|
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|
1503 syntax_error = TRUE; |
|
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|
1504 EMSGN(_("E869: (NFA) Unknown operator '\\@%c'"), op); |
|
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1505 return FAIL; |
|
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|
1506 } |
|
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|
1507 EMIT(i); |
|
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1508 if (i == NFA_PREV_ATOM_JUST_BEFORE |
|
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|
1509 || i == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
|
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|
1510 EMIT(c2); |
| 4444 | 1511 break; |
| 1512 | |
| 1513 case Magic('?'): | |
| 1514 case Magic('='): | |
| 1515 EMIT(NFA_QUEST); | |
| 1516 break; | |
| 1517 | |
| 1518 case Magic('{'): | |
| 1519 /* a{2,5} will expand to 'aaa?a?a?' | |
| 1520 * a{-1,3} will expand to 'aa??a??', where ?? is the nongreedy | |
| 1521 * version of '?' | |
| 1522 * \v(ab){2,3} will expand to '(ab)(ab)(ab)?', where all the | |
| 1523 * parenthesis have the same id | |
| 1524 */ | |
| 1525 | |
| 1526 greedy = TRUE; | |
| 1527 c2 = peekchr(); | |
| 1528 if (c2 == '-' || c2 == Magic('-')) | |
| 1529 { | |
| 1530 skipchr(); | |
| 1531 greedy = FALSE; | |
| 1532 } | |
| 1533 if (!read_limits(&minval, &maxval)) | |
| 1534 { | |
| 1535 syntax_error = TRUE; | |
| 1536 EMSG_RET_FAIL(_("E870: (NFA regexp) Error reading repetition limits")); | |
| 1537 } | |
| 1538 /* <atom>{0,inf}, <atom>{0,} and <atom>{} are equivalent to | |
| 1539 * <atom>* */ | |
|
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|
1540 if (minval == 0 && maxval == MAX_LIMIT) |
| 4444 | 1541 { |
|
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|
1542 if (greedy) |
|
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1543 /* \{}, \{0,} */ |
|
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1544 EMIT(NFA_STAR); |
|
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1545 else |
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|
1546 /* \{-}, \{-0,} */ |
|
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|
1547 EMIT(NFA_STAR_NONGREEDY); |
| 4444 | 1548 break; |
| 1549 } | |
| 1550 | |
| 1551 /* Special case: x{0} or x{-0} */ | |
| 1552 if (maxval == 0) | |
| 1553 { | |
| 1554 /* Ignore result of previous call to nfa_regatom() */ | |
|
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|
1555 post_ptr = post_start + my_post_start; |
| 4444 | 1556 /* NFA_SKIP_CHAR has 0-length and works everywhere */ |
| 1557 EMIT(NFA_SKIP_CHAR); | |
| 1558 return OK; | |
| 1559 } | |
| 1560 | |
| 1561 /* Ignore previous call to nfa_regatom() */ | |
|
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|
1562 post_ptr = post_start + my_post_start; |
|
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|
1563 /* Save parse state after the repeated atom and the \{} */ |
|
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|
1564 save_parse_state(&new_state); |
| 4444 | 1565 |
| 1566 quest = (greedy == TRUE? NFA_QUEST : NFA_QUEST_NONGREEDY); | |
| 1567 for (i = 0; i < maxval; i++) | |
| 1568 { | |
| 1569 /* Goto beginning of the repeated atom */ | |
|
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|
1570 restore_parse_state(&old_state); |
|
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|
1571 old_post_pos = (int)(post_ptr - post_start); |
| 4444 | 1572 if (nfa_regatom() == FAIL) |
| 1573 return FAIL; | |
| 1574 /* after "minval" times, atoms are optional */ | |
| 1575 if (i + 1 > minval) | |
|
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|
1576 { |
|
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|
1577 if (maxval == MAX_LIMIT) |
|
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|
1578 { |
|
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|
1579 if (greedy) |
|
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|
1580 EMIT(NFA_STAR); |
|
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|
1581 else |
|
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|
1582 EMIT(NFA_STAR_NONGREEDY); |
|
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|
1583 } |
|
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|
1584 else |
|
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|
1585 EMIT(quest); |
|
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|
1586 } |
|
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|
1587 if (old_post_pos != my_post_start) |
| 4444 | 1588 EMIT(NFA_CONCAT); |
|
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|
1589 if (i + 1 > minval && maxval == MAX_LIMIT) |
|
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|
1590 break; |
| 4444 | 1591 } |
| 1592 | |
| 1593 /* Go to just after the repeated atom and the \{} */ | |
|
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|
1594 restore_parse_state(&new_state); |
| 4444 | 1595 curchr = -1; |
| 1596 | |
| 1597 break; | |
| 1598 | |
| 1599 | |
| 1600 default: | |
| 1601 break; | |
| 1602 } /* end switch */ | |
| 1603 | |
| 1604 if (re_multi_type(peekchr()) != NOT_MULTI) | |
| 1605 { | |
| 1606 /* Can't have a multi follow a multi. */ | |
| 1607 syntax_error = TRUE; | |
| 1608 EMSG_RET_FAIL(_("E871: (NFA regexp) Can't have a multi follow a multi !")); | |
| 1609 } | |
| 1610 | |
| 1611 return OK; | |
| 1612 } | |
| 1613 | |
| 1614 /* | |
| 1615 * Parse one or more pieces, concatenated. It matches a match for the | |
| 1616 * first piece, followed by a match for the second piece, etc. Example: | |
| 1617 * "f[0-9]b", first matches "f", then a digit and then "b". | |
| 1618 * | |
| 1619 * concat ::= piece | |
| 1620 * or piece piece | |
| 1621 * or piece piece piece | |
| 1622 * etc. | |
| 1623 */ | |
| 1624 static int | |
| 1625 nfa_regconcat() | |
| 1626 { | |
| 1627 int cont = TRUE; | |
| 1628 int first = TRUE; | |
| 1629 | |
| 1630 while (cont) | |
| 1631 { | |
| 1632 switch (peekchr()) | |
| 1633 { | |
| 1634 case NUL: | |
| 1635 case Magic('|'): | |
| 1636 case Magic('&'): | |
| 1637 case Magic(')'): | |
| 1638 cont = FALSE; | |
| 1639 break; | |
| 1640 | |
| 1641 case Magic('Z'): | |
| 1642 #ifdef FEAT_MBYTE | |
| 1643 regflags |= RF_ICOMBINE; | |
| 1644 #endif | |
| 1645 skipchr_keepstart(); | |
| 1646 break; | |
| 1647 case Magic('c'): | |
| 1648 regflags |= RF_ICASE; | |
| 1649 skipchr_keepstart(); | |
| 1650 break; | |
| 1651 case Magic('C'): | |
| 1652 regflags |= RF_NOICASE; | |
| 1653 skipchr_keepstart(); | |
| 1654 break; | |
| 1655 case Magic('v'): | |
| 1656 reg_magic = MAGIC_ALL; | |
| 1657 skipchr_keepstart(); | |
| 1658 curchr = -1; | |
| 1659 break; | |
| 1660 case Magic('m'): | |
| 1661 reg_magic = MAGIC_ON; | |
| 1662 skipchr_keepstart(); | |
| 1663 curchr = -1; | |
| 1664 break; | |
| 1665 case Magic('M'): | |
| 1666 reg_magic = MAGIC_OFF; | |
| 1667 skipchr_keepstart(); | |
| 1668 curchr = -1; | |
| 1669 break; | |
| 1670 case Magic('V'): | |
| 1671 reg_magic = MAGIC_NONE; | |
| 1672 skipchr_keepstart(); | |
| 1673 curchr = -1; | |
| 1674 break; | |
| 1675 | |
| 1676 default: | |
| 1677 if (nfa_regpiece() == FAIL) | |
| 1678 return FAIL; | |
| 1679 if (first == FALSE) | |
| 1680 EMIT(NFA_CONCAT); | |
| 1681 else | |
| 1682 first = FALSE; | |
| 1683 break; | |
| 1684 } | |
| 1685 } | |
| 1686 | |
| 1687 return OK; | |
| 1688 } | |
| 1689 | |
| 1690 /* | |
| 1691 * Parse a branch, one or more concats, separated by "\&". It matches the | |
| 1692 * last concat, but only if all the preceding concats also match at the same | |
| 1693 * position. Examples: | |
| 1694 * "foobeep\&..." matches "foo" in "foobeep". | |
| 1695 * ".*Peter\&.*Bob" matches in a line containing both "Peter" and "Bob" | |
| 1696 * | |
| 1697 * branch ::= concat | |
| 1698 * or concat \& concat | |
| 1699 * or concat \& concat \& concat | |
| 1700 * etc. | |
| 1701 */ | |
| 1702 static int | |
| 1703 nfa_regbranch() | |
| 1704 { | |
| 1705 int ch; | |
|
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|
1706 int old_post_pos; |
|
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1707 |
|
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|
1708 old_post_pos = (int)(post_ptr - post_start); |
| 4444 | 1709 |
| 1710 /* First branch, possibly the only one */ | |
| 1711 if (nfa_regconcat() == FAIL) | |
| 1712 return FAIL; | |
| 1713 | |
| 1714 ch = peekchr(); | |
| 1715 /* Try next concats */ | |
| 1716 while (ch == Magic('&')) | |
| 1717 { | |
| 1718 skipchr(); | |
| 1719 EMIT(NFA_NOPEN); | |
| 1720 EMIT(NFA_PREV_ATOM_NO_WIDTH); | |
|
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|
1721 old_post_pos = (int)(post_ptr - post_start); |
| 4444 | 1722 if (nfa_regconcat() == FAIL) |
| 1723 return FAIL; | |
| 1724 /* if concat is empty, skip a input char. But do emit a node */ | |
|
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|
1725 if (old_post_pos == (int)(post_ptr - post_start)) |
| 4444 | 1726 EMIT(NFA_SKIP_CHAR); |
| 1727 EMIT(NFA_CONCAT); | |
| 1728 ch = peekchr(); | |
| 1729 } | |
| 1730 | |
| 1731 /* Even if a branch is empty, emit one node for it */ | |
|
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|
1732 if (old_post_pos == (int)(post_ptr - post_start)) |
| 4444 | 1733 EMIT(NFA_SKIP_CHAR); |
| 1734 | |
| 1735 return OK; | |
| 1736 } | |
| 1737 | |
| 1738 /* | |
| 1739 * Parse a pattern, one or more branches, separated by "\|". It matches | |
| 1740 * anything that matches one of the branches. Example: "foo\|beep" matches | |
| 1741 * "foo" and matches "beep". If more than one branch matches, the first one | |
| 1742 * is used. | |
| 1743 * | |
| 1744 * pattern ::= branch | |
| 1745 * or branch \| branch | |
| 1746 * or branch \| branch \| branch | |
| 1747 * etc. | |
| 1748 */ | |
| 1749 static int | |
| 1750 nfa_reg(paren) | |
| 1751 int paren; /* REG_NOPAREN, REG_PAREN, REG_NPAREN or REG_ZPAREN */ | |
| 1752 { | |
| 1753 int parno = 0; | |
| 1754 | |
| 1755 if (paren == REG_PAREN) | |
| 1756 { | |
| 1757 if (regnpar >= NSUBEXP) /* Too many `(' */ | |
| 1758 { | |
| 1759 syntax_error = TRUE; | |
| 1760 EMSG_RET_FAIL(_("E872: (NFA regexp) Too many '('")); | |
| 1761 } | |
| 1762 parno = regnpar++; | |
| 1763 } | |
|
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|
1764 #ifdef FEAT_SYN_HL |
|
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1765 else if (paren == REG_ZPAREN) |
|
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|
1766 { |
|
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|
1767 /* Make a ZOPEN node. */ |
|
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|
1768 if (regnzpar >= NSUBEXP) |
|
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|
1769 { |
|
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|
1770 syntax_error = TRUE; |
|
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|
1771 EMSG_RET_FAIL(_("E879: (NFA regexp) Too many \\z(")); |
|
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|
1772 } |
|
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|
1773 parno = regnzpar++; |
|
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|
1774 } |
|
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|
1775 #endif |
| 4444 | 1776 |
| 1777 if (nfa_regbranch() == FAIL) | |
| 1778 return FAIL; /* cascaded error */ | |
| 1779 | |
| 1780 while (peekchr() == Magic('|')) | |
| 1781 { | |
| 1782 skipchr(); | |
| 1783 if (nfa_regbranch() == FAIL) | |
| 1784 return FAIL; /* cascaded error */ | |
| 1785 EMIT(NFA_OR); | |
| 1786 } | |
| 1787 | |
| 1788 /* Check for proper termination. */ | |
| 1789 if (paren != REG_NOPAREN && getchr() != Magic(')')) | |
| 1790 { | |
| 1791 syntax_error = TRUE; | |
| 1792 if (paren == REG_NPAREN) | |
| 1793 EMSG2_RET_FAIL(_(e_unmatchedpp), reg_magic == MAGIC_ALL); | |
| 1794 else | |
| 1795 EMSG2_RET_FAIL(_(e_unmatchedp), reg_magic == MAGIC_ALL); | |
| 1796 } | |
| 1797 else if (paren == REG_NOPAREN && peekchr() != NUL) | |
| 1798 { | |
| 1799 syntax_error = TRUE; | |
| 1800 if (peekchr() == Magic(')')) | |
| 1801 EMSG2_RET_FAIL(_(e_unmatchedpar), reg_magic == MAGIC_ALL); | |
| 1802 else | |
| 1803 EMSG_RET_FAIL(_("E873: (NFA regexp) proper termination error")); | |
| 1804 } | |
| 1805 /* | |
| 1806 * Here we set the flag allowing back references to this set of | |
| 1807 * parentheses. | |
| 1808 */ | |
| 1809 if (paren == REG_PAREN) | |
| 1810 { | |
| 1811 had_endbrace[parno] = TRUE; /* have seen the close paren */ | |
| 1812 EMIT(NFA_MOPEN + parno); | |
| 1813 } | |
|
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|
1814 #ifdef FEAT_SYN_HL |
|
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|
1815 else if (paren == REG_ZPAREN) |
|
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|
1816 EMIT(NFA_ZOPEN + parno); |
|
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|
1817 #endif |
| 4444 | 1818 |
| 1819 return OK; | |
| 1820 } | |
| 1821 | |
| 1822 #ifdef DEBUG | |
| 1823 static char_u code[50]; | |
| 1824 | |
| 1825 static void | |
| 1826 nfa_set_code(c) | |
| 1827 int c; | |
| 1828 { | |
| 1829 int addnl = FALSE; | |
| 1830 | |
| 1831 if (c >= NFA_FIRST_NL && c <= NFA_LAST_NL) | |
| 1832 { | |
| 1833 addnl = TRUE; | |
| 1834 c -= ADD_NL; | |
| 1835 } | |
| 1836 | |
| 1837 STRCPY(code, ""); | |
| 1838 switch (c) | |
| 1839 { | |
| 1840 case NFA_MATCH: STRCPY(code, "NFA_MATCH "); break; | |
| 1841 case NFA_SPLIT: STRCPY(code, "NFA_SPLIT "); break; | |
| 1842 case NFA_CONCAT: STRCPY(code, "NFA_CONCAT "); break; | |
| 1843 case NFA_NEWL: STRCPY(code, "NFA_NEWL "); break; | |
| 1844 case NFA_ZSTART: STRCPY(code, "NFA_ZSTART"); break; | |
| 1845 case NFA_ZEND: STRCPY(code, "NFA_ZEND"); break; | |
| 1846 | |
|
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1847 case NFA_BACKREF1: STRCPY(code, "NFA_BACKREF1"); break; |
|
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|
1848 case NFA_BACKREF2: STRCPY(code, "NFA_BACKREF2"); break; |
|
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|
1849 case NFA_BACKREF3: STRCPY(code, "NFA_BACKREF3"); break; |
|
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1850 case NFA_BACKREF4: STRCPY(code, "NFA_BACKREF4"); break; |
|
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1851 case NFA_BACKREF5: STRCPY(code, "NFA_BACKREF5"); break; |
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1852 case NFA_BACKREF6: STRCPY(code, "NFA_BACKREF6"); break; |
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1853 case NFA_BACKREF7: STRCPY(code, "NFA_BACKREF7"); break; |
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1854 case NFA_BACKREF8: STRCPY(code, "NFA_BACKREF8"); break; |
|
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1855 case NFA_BACKREF9: STRCPY(code, "NFA_BACKREF9"); break; |
|
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1856 #ifdef FEAT_SYN_HL |
|
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1857 case NFA_ZREF1: STRCPY(code, "NFA_ZREF1"); break; |
|
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1858 case NFA_ZREF2: STRCPY(code, "NFA_ZREF2"); break; |
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1859 case NFA_ZREF3: STRCPY(code, "NFA_ZREF3"); break; |
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1860 case NFA_ZREF4: STRCPY(code, "NFA_ZREF4"); break; |
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1861 case NFA_ZREF5: STRCPY(code, "NFA_ZREF5"); break; |
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1862 case NFA_ZREF6: STRCPY(code, "NFA_ZREF6"); break; |
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1863 case NFA_ZREF7: STRCPY(code, "NFA_ZREF7"); break; |
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1864 case NFA_ZREF8: STRCPY(code, "NFA_ZREF8"); break; |
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1865 case NFA_ZREF9: STRCPY(code, "NFA_ZREF9"); break; |
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1866 #endif |
|
4571
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1867 case NFA_SKIP: STRCPY(code, "NFA_SKIP"); break; |
|
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|
1868 |
| 4444 | 1869 case NFA_PREV_ATOM_NO_WIDTH: |
| 1870 STRCPY(code, "NFA_PREV_ATOM_NO_WIDTH"); break; | |
|
4583
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updated for version 7.3.1039
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|
1871 case NFA_PREV_ATOM_NO_WIDTH_NEG: |
|
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|
1872 STRCPY(code, "NFA_PREV_ATOM_NO_WIDTH_NEG"); break; |
|
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|
1873 case NFA_PREV_ATOM_JUST_BEFORE: |
|
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|
1874 STRCPY(code, "NFA_PREV_ATOM_JUST_BEFORE"); break; |
|
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1875 case NFA_PREV_ATOM_JUST_BEFORE_NEG: |
|
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|
1876 STRCPY(code, "NFA_PREV_ATOM_JUST_BEFORE_NEG"); break; |
|
4657
93b7ed814bec
updated for version 7.3.1076
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|
1877 case NFA_NOPEN: STRCPY(code, "NFA_NOPEN"); break; |
|
93b7ed814bec
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|
1878 case NFA_NCLOSE: STRCPY(code, "NFA_NCLOSE"); break; |
| 4444 | 1879 case NFA_START_INVISIBLE: STRCPY(code, "NFA_START_INVISIBLE"); break; |
|
4682
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|
1880 case NFA_START_INVISIBLE_BEFORE: |
|
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|
1881 STRCPY(code, "NFA_START_INVISIBLE_BEFORE"); break; |
| 4444 | 1882 case NFA_END_INVISIBLE: STRCPY(code, "NFA_END_INVISIBLE"); break; |
| 1883 | |
| 1884 case NFA_COMPOSING: STRCPY(code, "NFA_COMPOSING"); break; | |
| 1885 case NFA_END_COMPOSING: STRCPY(code, "NFA_END_COMPOSING"); break; | |
| 1886 | |
|
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|
1887 case NFA_MOPEN: |
|
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|
1888 case NFA_MOPEN1: |
|
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|
1889 case NFA_MOPEN2: |
|
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|
1890 case NFA_MOPEN3: |
|
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|
1891 case NFA_MOPEN4: |
|
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|
1892 case NFA_MOPEN5: |
|
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|
1893 case NFA_MOPEN6: |
|
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|
1894 case NFA_MOPEN7: |
|
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|
1895 case NFA_MOPEN8: |
|
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|
1896 case NFA_MOPEN9: |
| 4444 | 1897 STRCPY(code, "NFA_MOPEN(x)"); |
| 1898 code[10] = c - NFA_MOPEN + '0'; | |
| 1899 break; | |
|
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|
1900 case NFA_MCLOSE: |
|
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|
1901 case NFA_MCLOSE1: |
|
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|
1902 case NFA_MCLOSE2: |
|
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|
1903 case NFA_MCLOSE3: |
|
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|
1904 case NFA_MCLOSE4: |
|
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|
1905 case NFA_MCLOSE5: |
|
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|
1906 case NFA_MCLOSE6: |
|
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|
1907 case NFA_MCLOSE7: |
|
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|
1908 case NFA_MCLOSE8: |
|
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|
1909 case NFA_MCLOSE9: |
| 4444 | 1910 STRCPY(code, "NFA_MCLOSE(x)"); |
| 1911 code[11] = c - NFA_MCLOSE + '0'; | |
| 1912 break; | |
|
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1913 #ifdef FEAT_SYN_HL |
|
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1914 case NFA_ZOPEN: |
|
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|
1915 case NFA_ZOPEN1: |
|
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|
1916 case NFA_ZOPEN2: |
|
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|
1917 case NFA_ZOPEN3: |
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1918 case NFA_ZOPEN4: |
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|
1919 case NFA_ZOPEN5: |
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|
1920 case NFA_ZOPEN6: |
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|
1921 case NFA_ZOPEN7: |
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|
1922 case NFA_ZOPEN8: |
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|
1923 case NFA_ZOPEN9: |
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|
1924 STRCPY(code, "NFA_ZOPEN(x)"); |
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1925 code[10] = c - NFA_ZOPEN + '0'; |
|
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|
1926 break; |
|
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|
1927 case NFA_ZCLOSE: |
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|
1928 case NFA_ZCLOSE1: |
|
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|
1929 case NFA_ZCLOSE2: |
|
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|
1930 case NFA_ZCLOSE3: |
|
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|
1931 case NFA_ZCLOSE4: |
|
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|
1932 case NFA_ZCLOSE5: |
|
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|
1933 case NFA_ZCLOSE6: |
|
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|
1934 case NFA_ZCLOSE7: |
|
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|
1935 case NFA_ZCLOSE8: |
|
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|
1936 case NFA_ZCLOSE9: |
|
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|
1937 STRCPY(code, "NFA_ZCLOSE(x)"); |
|
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|
1938 code[11] = c - NFA_ZCLOSE + '0'; |
|
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1939 break; |
|
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1940 #endif |
| 4444 | 1941 case NFA_EOL: STRCPY(code, "NFA_EOL "); break; |
| 1942 case NFA_BOL: STRCPY(code, "NFA_BOL "); break; | |
| 1943 case NFA_EOW: STRCPY(code, "NFA_EOW "); break; | |
| 1944 case NFA_BOW: STRCPY(code, "NFA_BOW "); break; | |
|
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1945 case NFA_EOF: STRCPY(code, "NFA_EOF "); break; |
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1946 case NFA_BOF: STRCPY(code, "NFA_BOF "); break; |
| 4444 | 1947 case NFA_STAR: STRCPY(code, "NFA_STAR "); break; |
|
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1948 case NFA_STAR_NONGREEDY: STRCPY(code, "NFA_STAR_NONGREEDY "); break; |
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1949 case NFA_QUEST: STRCPY(code, "NFA_QUEST"); break; |
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1950 case NFA_QUEST_NONGREEDY: STRCPY(code, "NFA_QUEST_NON_GREEDY"); break; |
| 4444 | 1951 case NFA_NOT: STRCPY(code, "NFA_NOT "); break; |
| 1952 case NFA_SKIP_CHAR: STRCPY(code, "NFA_SKIP_CHAR"); break; | |
| 1953 case NFA_OR: STRCPY(code, "NFA_OR"); break; | |
| 1954 case NFA_END_NEG_RANGE: STRCPY(code, "NFA_END_NEG_RANGE"); break; | |
| 1955 case NFA_CLASS_ALNUM: STRCPY(code, "NFA_CLASS_ALNUM"); break; | |
| 1956 case NFA_CLASS_ALPHA: STRCPY(code, "NFA_CLASS_ALPHA"); break; | |
| 1957 case NFA_CLASS_BLANK: STRCPY(code, "NFA_CLASS_BLANK"); break; | |
| 1958 case NFA_CLASS_CNTRL: STRCPY(code, "NFA_CLASS_CNTRL"); break; | |
| 1959 case NFA_CLASS_DIGIT: STRCPY(code, "NFA_CLASS_DIGIT"); break; | |
| 1960 case NFA_CLASS_GRAPH: STRCPY(code, "NFA_CLASS_GRAPH"); break; | |
| 1961 case NFA_CLASS_LOWER: STRCPY(code, "NFA_CLASS_LOWER"); break; | |
| 1962 case NFA_CLASS_PRINT: STRCPY(code, "NFA_CLASS_PRINT"); break; | |
| 1963 case NFA_CLASS_PUNCT: STRCPY(code, "NFA_CLASS_PUNCT"); break; | |
| 1964 case NFA_CLASS_SPACE: STRCPY(code, "NFA_CLASS_SPACE"); break; | |
| 1965 case NFA_CLASS_UPPER: STRCPY(code, "NFA_CLASS_UPPER"); break; | |
| 1966 case NFA_CLASS_XDIGIT: STRCPY(code, "NFA_CLASS_XDIGIT"); break; | |
| 1967 case NFA_CLASS_TAB: STRCPY(code, "NFA_CLASS_TAB"); break; | |
| 1968 case NFA_CLASS_RETURN: STRCPY(code, "NFA_CLASS_RETURN"); break; | |
| 1969 case NFA_CLASS_BACKSPACE: STRCPY(code, "NFA_CLASS_BACKSPACE"); break; | |
| 1970 case NFA_CLASS_ESCAPE: STRCPY(code, "NFA_CLASS_ESCAPE"); break; | |
| 1971 | |
| 1972 case NFA_ANY: STRCPY(code, "NFA_ANY"); break; | |
| 1973 case NFA_IDENT: STRCPY(code, "NFA_IDENT"); break; | |
| 1974 case NFA_SIDENT:STRCPY(code, "NFA_SIDENT"); break; | |
| 1975 case NFA_KWORD: STRCPY(code, "NFA_KWORD"); break; | |
| 1976 case NFA_SKWORD:STRCPY(code, "NFA_SKWORD"); break; | |
| 1977 case NFA_FNAME: STRCPY(code, "NFA_FNAME"); break; | |
| 1978 case NFA_SFNAME:STRCPY(code, "NFA_SFNAME"); break; | |
| 1979 case NFA_PRINT: STRCPY(code, "NFA_PRINT"); break; | |
| 1980 case NFA_SPRINT:STRCPY(code, "NFA_SPRINT"); break; | |
| 1981 case NFA_WHITE: STRCPY(code, "NFA_WHITE"); break; | |
| 1982 case NFA_NWHITE:STRCPY(code, "NFA_NWHITE"); break; | |
| 1983 case NFA_DIGIT: STRCPY(code, "NFA_DIGIT"); break; | |
| 1984 case NFA_NDIGIT:STRCPY(code, "NFA_NDIGIT"); break; | |
| 1985 case NFA_HEX: STRCPY(code, "NFA_HEX"); break; | |
| 1986 case NFA_NHEX: STRCPY(code, "NFA_NHEX"); break; | |
| 1987 case NFA_OCTAL: STRCPY(code, "NFA_OCTAL"); break; | |
| 1988 case NFA_NOCTAL:STRCPY(code, "NFA_NOCTAL"); break; | |
| 1989 case NFA_WORD: STRCPY(code, "NFA_WORD"); break; | |
| 1990 case NFA_NWORD: STRCPY(code, "NFA_NWORD"); break; | |
| 1991 case NFA_HEAD: STRCPY(code, "NFA_HEAD"); break; | |
| 1992 case NFA_NHEAD: STRCPY(code, "NFA_NHEAD"); break; | |
| 1993 case NFA_ALPHA: STRCPY(code, "NFA_ALPHA"); break; | |
| 1994 case NFA_NALPHA:STRCPY(code, "NFA_NALPHA"); break; | |
| 1995 case NFA_LOWER: STRCPY(code, "NFA_LOWER"); break; | |
| 1996 case NFA_NLOWER:STRCPY(code, "NFA_NLOWER"); break; | |
| 1997 case NFA_UPPER: STRCPY(code, "NFA_UPPER"); break; | |
| 1998 case NFA_NUPPER:STRCPY(code, "NFA_NUPPER"); break; | |
| 1999 | |
| 2000 default: | |
| 2001 STRCPY(code, "CHAR(x)"); | |
| 2002 code[5] = c; | |
| 2003 } | |
| 2004 | |
| 2005 if (addnl == TRUE) | |
| 2006 STRCAT(code, " + NEWLINE "); | |
| 2007 | |
| 2008 } | |
| 2009 | |
| 2010 #ifdef ENABLE_LOG | |
| 2011 static FILE *log_fd; | |
| 2012 | |
| 2013 /* | |
| 2014 * Print the postfix notation of the current regexp. | |
| 2015 */ | |
| 2016 static void | |
| 2017 nfa_postfix_dump(expr, retval) | |
| 2018 char_u *expr; | |
| 2019 int retval; | |
| 2020 { | |
| 2021 int *p; | |
| 2022 FILE *f; | |
| 2023 | |
|
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2024 f = fopen(NFA_REGEXP_DUMP_LOG, "a"); |
| 4444 | 2025 if (f != NULL) |
| 2026 { | |
| 2027 fprintf(f, "\n-------------------------\n"); | |
| 2028 if (retval == FAIL) | |
| 2029 fprintf(f, ">>> NFA engine failed ... \n"); | |
| 2030 else if (retval == OK) | |
| 2031 fprintf(f, ">>> NFA engine succeeded !\n"); | |
| 2032 fprintf(f, "Regexp: \"%s\"\nPostfix notation (char): \"", expr); | |
| 4464 | 2033 for (p = post_start; *p && p < post_end; p++) |
| 4444 | 2034 { |
| 2035 nfa_set_code(*p); | |
| 2036 fprintf(f, "%s, ", code); | |
| 2037 } | |
| 2038 fprintf(f, "\"\nPostfix notation (int): "); | |
| 4464 | 2039 for (p = post_start; *p && p < post_end; p++) |
| 4444 | 2040 fprintf(f, "%d ", *p); |
| 2041 fprintf(f, "\n\n"); | |
| 2042 fclose(f); | |
| 2043 } | |
| 2044 } | |
| 2045 | |
| 2046 /* | |
| 2047 * Print the NFA starting with a root node "state". | |
| 2048 */ | |
| 2049 static void | |
|
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|
2050 nfa_print_state(debugf, state) |
| 4444 | 2051 FILE *debugf; |
| 2052 nfa_state_T *state; | |
| 2053 { | |
|
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|
2054 garray_T indent; |
|
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2055 |
|
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2056 ga_init2(&indent, 1, 64); |
|
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2057 ga_append(&indent, '\0'); |
|
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2058 nfa_print_state2(debugf, state, &indent); |
|
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2059 ga_clear(&indent); |
|
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2060 } |
|
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2061 |
|
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2062 static void |
|
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2063 nfa_print_state2(debugf, state, indent) |
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2064 FILE *debugf; |
|
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2065 nfa_state_T *state; |
|
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2066 garray_T *indent; |
|
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2067 { |
|
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2068 char_u *p; |
| 4444 | 2069 |
| 2070 if (state == NULL) | |
| 2071 return; | |
| 2072 | |
| 2073 fprintf(debugf, "(%2d)", abs(state->id)); | |
|
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2074 |
|
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2075 /* Output indent */ |
|
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2076 p = (char_u *)indent->ga_data; |
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2077 if (indent->ga_len >= 3) |
|
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2078 { |
|
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|
2079 int last = indent->ga_len - 3; |
|
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|
2080 char_u save[2]; |
|
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2081 |
|
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2082 STRNCPY(save, &p[last], 2); |
|
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2083 STRNCPY(&p[last], "+-", 2); |
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2084 fprintf(debugf, " %s", p); |
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2085 STRNCPY(&p[last], save, 2); |
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2086 } |
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2087 else |
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|
2088 fprintf(debugf, " %s", p); |
| 4444 | 2089 |
| 2090 nfa_set_code(state->c); | |
|
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2091 fprintf(debugf, "%s%s (%d) (id=%d)\n", |
|
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2092 state->negated ? "NOT " : "", code, state->c, abs(state->id)); |
| 4444 | 2093 if (state->id < 0) |
| 2094 return; | |
| 2095 | |
| 2096 state->id = abs(state->id) * -1; | |
|
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|
2097 |
|
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2098 /* grow indent for state->out */ |
|
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2099 indent->ga_len -= 1; |
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|
2100 if (state->out1) |
|
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2101 ga_concat(indent, (char_u *)"| "); |
|
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2102 else |
|
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2103 ga_concat(indent, (char_u *)" "); |
|
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2104 ga_append(indent, '\0'); |
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|
2105 |
|
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2106 nfa_print_state2(debugf, state->out, indent); |
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2107 |
|
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2108 /* replace last part of indent for state->out1 */ |
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|
2109 indent->ga_len -= 3; |
|
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2110 ga_concat(indent, (char_u *)" "); |
|
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|
2111 ga_append(indent, '\0'); |
|
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2112 |
|
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2113 nfa_print_state2(debugf, state->out1, indent); |
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2114 |
|
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2115 /* shrink indent */ |
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2116 indent->ga_len -= 3; |
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|
2117 ga_append(indent, '\0'); |
| 4444 | 2118 } |
| 2119 | |
| 2120 /* | |
| 2121 * Print the NFA state machine. | |
| 2122 */ | |
| 2123 static void | |
| 2124 nfa_dump(prog) | |
| 2125 nfa_regprog_T *prog; | |
| 2126 { | |
|
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|
2127 FILE *debugf = fopen(NFA_REGEXP_DUMP_LOG, "a"); |
| 4444 | 2128 |
| 2129 if (debugf != NULL) | |
| 2130 { | |
|
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|
2131 nfa_print_state(debugf, prog->start); |
| 4444 | 2132 fclose(debugf); |
| 2133 } | |
| 2134 } | |
| 2135 #endif /* ENABLE_LOG */ | |
| 2136 #endif /* DEBUG */ | |
| 2137 | |
| 2138 /* | |
| 2139 * Parse r.e. @expr and convert it into postfix form. | |
| 2140 * Return the postfix string on success, NULL otherwise. | |
| 2141 */ | |
| 2142 static int * | |
| 2143 re2post() | |
| 2144 { | |
| 2145 if (nfa_reg(REG_NOPAREN) == FAIL) | |
| 2146 return NULL; | |
| 2147 EMIT(NFA_MOPEN); | |
| 2148 return post_start; | |
| 2149 } | |
| 2150 | |
| 2151 /* NB. Some of the code below is inspired by Russ's. */ | |
| 2152 | |
| 2153 /* | |
| 2154 * Represents an NFA state plus zero or one or two arrows exiting. | |
| 2155 * if c == MATCH, no arrows out; matching state. | |
| 2156 * If c == SPLIT, unlabeled arrows to out and out1 (if != NULL). | |
| 2157 * If c < 256, labeled arrow with character c to out. | |
| 2158 */ | |
| 2159 | |
| 2160 static nfa_state_T *state_ptr; /* points to nfa_prog->state */ | |
| 2161 | |
| 2162 /* | |
| 2163 * Allocate and initialize nfa_state_T. | |
| 2164 */ | |
| 2165 static nfa_state_T * | |
|
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|
2166 alloc_state(c, out, out1) |
| 4444 | 2167 int c; |
| 2168 nfa_state_T *out; | |
| 2169 nfa_state_T *out1; | |
| 2170 { | |
| 2171 nfa_state_T *s; | |
| 2172 | |
| 2173 if (istate >= nstate) | |
| 2174 return NULL; | |
| 2175 | |
| 2176 s = &state_ptr[istate++]; | |
| 2177 | |
| 2178 s->c = c; | |
| 2179 s->out = out; | |
| 2180 s->out1 = out1; | |
| 2181 | |
| 2182 s->id = istate; | |
|
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|
2183 s->lastlist[0] = 0; |
|
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|
2184 s->lastlist[1] = 0; |
| 4444 | 2185 s->negated = FALSE; |
| 2186 | |
| 2187 return s; | |
| 2188 } | |
| 2189 | |
| 2190 /* | |
| 2191 * A partially built NFA without the matching state filled in. | |
| 2192 * Frag_T.start points at the start state. | |
| 2193 * Frag_T.out is a list of places that need to be set to the | |
| 2194 * next state for this fragment. | |
| 2195 */ | |
|
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|
2196 |
|
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2197 /* Since the out pointers in the list are always |
|
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|
2198 * uninitialized, we use the pointers themselves |
|
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|
2199 * as storage for the Ptrlists. */ |
| 4444 | 2200 typedef union Ptrlist Ptrlist; |
|
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|
2201 union Ptrlist |
|
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|
2202 { |
|
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|
2203 Ptrlist *next; |
|
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|
2204 nfa_state_T *s; |
|
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|
2205 }; |
|
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|
2206 |
| 4444 | 2207 struct Frag |
| 2208 { | |
|
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|
2209 nfa_state_T *start; |
| 4444 | 2210 Ptrlist *out; |
| 2211 }; | |
| 2212 typedef struct Frag Frag_T; | |
| 2213 | |
| 2214 static Frag_T frag __ARGS((nfa_state_T *start, Ptrlist *out)); | |
| 2215 static Ptrlist *list1 __ARGS((nfa_state_T **outp)); | |
| 2216 static void patch __ARGS((Ptrlist *l, nfa_state_T *s)); | |
| 2217 static Ptrlist *append __ARGS((Ptrlist *l1, Ptrlist *l2)); | |
| 2218 static void st_push __ARGS((Frag_T s, Frag_T **p, Frag_T *stack_end)); | |
| 2219 static Frag_T st_pop __ARGS((Frag_T **p, Frag_T *stack)); | |
| 2220 | |
| 2221 /* | |
| 4456 | 2222 * Initialize a Frag_T struct and return it. |
| 4444 | 2223 */ |
| 2224 static Frag_T | |
| 2225 frag(start, out) | |
| 2226 nfa_state_T *start; | |
| 2227 Ptrlist *out; | |
| 2228 { | |
| 4456 | 2229 Frag_T n; |
| 2230 | |
| 2231 n.start = start; | |
| 2232 n.out = out; | |
| 4444 | 2233 return n; |
| 2234 } | |
| 2235 | |
| 2236 /* | |
| 2237 * Create singleton list containing just outp. | |
| 2238 */ | |
| 2239 static Ptrlist * | |
| 2240 list1(outp) | |
| 2241 nfa_state_T **outp; | |
| 2242 { | |
| 2243 Ptrlist *l; | |
| 2244 | |
| 2245 l = (Ptrlist *)outp; | |
| 2246 l->next = NULL; | |
| 2247 return l; | |
| 2248 } | |
| 2249 | |
| 2250 /* | |
| 2251 * Patch the list of states at out to point to start. | |
| 2252 */ | |
| 2253 static void | |
| 2254 patch(l, s) | |
| 2255 Ptrlist *l; | |
| 2256 nfa_state_T *s; | |
| 2257 { | |
| 2258 Ptrlist *next; | |
| 2259 | |
| 2260 for (; l; l = next) | |
| 2261 { | |
| 2262 next = l->next; | |
| 2263 l->s = s; | |
| 2264 } | |
| 2265 } | |
| 2266 | |
| 2267 | |
| 2268 /* | |
| 2269 * Join the two lists l1 and l2, returning the combination. | |
| 2270 */ | |
| 2271 static Ptrlist * | |
| 2272 append(l1, l2) | |
| 2273 Ptrlist *l1; | |
| 2274 Ptrlist *l2; | |
| 2275 { | |
| 2276 Ptrlist *oldl1; | |
| 2277 | |
| 2278 oldl1 = l1; | |
| 2279 while (l1->next) | |
| 2280 l1 = l1->next; | |
| 2281 l1->next = l2; | |
| 2282 return oldl1; | |
| 2283 } | |
| 2284 | |
| 2285 /* | |
| 2286 * Stack used for transforming postfix form into NFA. | |
| 2287 */ | |
| 2288 static Frag_T empty; | |
| 2289 | |
| 2290 static void | |
| 2291 st_error(postfix, end, p) | |
|
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|
2292 int *postfix UNUSED; |
|
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|
2293 int *end UNUSED; |
|
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|
2294 int *p UNUSED; |
| 4444 | 2295 { |
|
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|
2296 #ifdef NFA_REGEXP_ERROR_LOG |
| 4444 | 2297 FILE *df; |
| 2298 int *p2; | |
| 2299 | |
|
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|
2300 df = fopen(NFA_REGEXP_ERROR_LOG, "a"); |
| 4444 | 2301 if (df) |
| 2302 { | |
| 2303 fprintf(df, "Error popping the stack!\n"); | |
| 2304 #ifdef DEBUG | |
| 2305 fprintf(df, "Current regexp is \"%s\"\n", nfa_regengine.expr); | |
| 2306 #endif | |
| 2307 fprintf(df, "Postfix form is: "); | |
| 2308 #ifdef DEBUG | |
| 2309 for (p2 = postfix; p2 < end; p2++) | |
| 2310 { | |
| 2311 nfa_set_code(*p2); | |
| 2312 fprintf(df, "%s, ", code); | |
| 2313 } | |
| 2314 nfa_set_code(*p); | |
| 2315 fprintf(df, "\nCurrent position is: "); | |
| 2316 for (p2 = postfix; p2 <= p; p2 ++) | |
| 2317 { | |
| 2318 nfa_set_code(*p2); | |
| 2319 fprintf(df, "%s, ", code); | |
| 2320 } | |
| 2321 #else | |
| 2322 for (p2 = postfix; p2 < end; p2++) | |
| 2323 { | |
| 2324 fprintf(df, "%d, ", *p2); | |
| 2325 } | |
| 2326 fprintf(df, "\nCurrent position is: "); | |
| 2327 for (p2 = postfix; p2 <= p; p2 ++) | |
| 2328 { | |
| 2329 fprintf(df, "%d, ", *p2); | |
| 2330 } | |
| 2331 #endif | |
| 2332 fprintf(df, "\n--------------------------\n"); | |
| 2333 fclose(df); | |
| 2334 } | |
|
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|
2335 #endif |
| 4444 | 2336 EMSG(_("E874: (NFA) Could not pop the stack !")); |
| 2337 } | |
| 2338 | |
| 2339 /* | |
| 2340 * Push an item onto the stack. | |
| 2341 */ | |
| 2342 static void | |
| 2343 st_push(s, p, stack_end) | |
| 2344 Frag_T s; | |
| 2345 Frag_T **p; | |
| 2346 Frag_T *stack_end; | |
| 2347 { | |
| 2348 Frag_T *stackp = *p; | |
| 2349 | |
| 2350 if (stackp >= stack_end) | |
| 2351 return; | |
| 2352 *stackp = s; | |
| 2353 *p = *p + 1; | |
| 2354 } | |
| 2355 | |
| 2356 /* | |
| 2357 * Pop an item from the stack. | |
| 2358 */ | |
| 2359 static Frag_T | |
| 2360 st_pop(p, stack) | |
| 2361 Frag_T **p; | |
| 2362 Frag_T *stack; | |
| 2363 { | |
| 2364 Frag_T *stackp; | |
| 2365 | |
| 2366 *p = *p - 1; | |
| 2367 stackp = *p; | |
| 2368 if (stackp < stack) | |
| 2369 return empty; | |
| 2370 return **p; | |
| 2371 } | |
| 2372 | |
| 2373 /* | |
| 2374 * Convert a postfix form into its equivalent NFA. | |
| 2375 * Return the NFA start state on success, NULL otherwise. | |
| 2376 */ | |
| 2377 static nfa_state_T * | |
| 2378 post2nfa(postfix, end, nfa_calc_size) | |
| 2379 int *postfix; | |
| 2380 int *end; | |
| 2381 int nfa_calc_size; | |
| 2382 { | |
| 2383 int *p; | |
| 2384 int mopen; | |
| 2385 int mclose; | |
| 2386 Frag_T *stack = NULL; | |
| 2387 Frag_T *stackp = NULL; | |
| 2388 Frag_T *stack_end = NULL; | |
| 2389 Frag_T e1; | |
| 2390 Frag_T e2; | |
| 2391 Frag_T e; | |
| 2392 nfa_state_T *s; | |
| 2393 nfa_state_T *s1; | |
| 2394 nfa_state_T *matchstate; | |
| 4484 | 2395 nfa_state_T *ret = NULL; |
| 4444 | 2396 |
| 2397 if (postfix == NULL) | |
| 2398 return NULL; | |
| 2399 | |
| 4456 | 2400 #define PUSH(s) st_push((s), &stackp, stack_end) |
| 4444 | 2401 #define POP() st_pop(&stackp, stack); \ |
| 2402 if (stackp < stack) \ | |
| 2403 { \ | |
| 2404 st_error(postfix, end, p); \ | |
| 2405 return NULL; \ | |
| 2406 } | |
| 2407 | |
| 2408 if (nfa_calc_size == FALSE) | |
| 2409 { | |
| 2410 /* Allocate space for the stack. Max states on the stack : nstate */ | |
|
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|
2411 stack = (Frag_T *)lalloc((nstate + 1) * sizeof(Frag_T), TRUE); |
| 4444 | 2412 stackp = stack; |
| 4462 | 2413 stack_end = stack + (nstate + 1); |
| 4444 | 2414 } |
| 2415 | |
| 2416 for (p = postfix; p < end; ++p) | |
| 2417 { | |
| 2418 switch (*p) | |
| 2419 { | |
| 2420 case NFA_CONCAT: | |
| 2421 /* Catenation. | |
| 2422 * Pay attention: this operator does not exist | |
| 2423 * in the r.e. itself (it is implicit, really). | |
| 2424 * It is added when r.e. is translated to postfix | |
| 2425 * form in re2post(). | |
| 2426 * | |
| 2427 * No new state added here. */ | |
| 2428 if (nfa_calc_size == TRUE) | |
| 2429 { | |
| 4458 | 2430 /* nstate += 0; */ |
| 4444 | 2431 break; |
| 2432 } | |
| 2433 e2 = POP(); | |
| 2434 e1 = POP(); | |
| 2435 patch(e1.out, e2.start); | |
| 2436 PUSH(frag(e1.start, e2.out)); | |
| 2437 break; | |
| 2438 | |
| 2439 case NFA_NOT: | |
| 2440 /* Negation of a character */ | |
| 2441 if (nfa_calc_size == TRUE) | |
| 2442 { | |
| 4458 | 2443 /* nstate += 0; */ |
| 4444 | 2444 break; |
| 2445 } | |
| 2446 e1 = POP(); | |
| 2447 e1.start->negated = TRUE; | |
|
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|
2448 #ifdef FEAT_MBYTE |
|
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|
2449 if (e1.start->c == NFA_COMPOSING) |
| 4444 | 2450 e1.start->out1->negated = TRUE; |
|
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|
2451 #endif |
| 4444 | 2452 PUSH(e1); |
| 2453 break; | |
| 2454 | |
| 2455 case NFA_OR: | |
| 2456 /* Alternation */ | |
| 2457 if (nfa_calc_size == TRUE) | |
| 2458 { | |
| 4458 | 2459 nstate++; |
| 4444 | 2460 break; |
| 2461 } | |
| 2462 e2 = POP(); | |
| 2463 e1 = POP(); | |
|
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|
2464 s = alloc_state(NFA_SPLIT, e1.start, e2.start); |
| 4444 | 2465 if (s == NULL) |
| 4484 | 2466 goto theend; |
| 4444 | 2467 PUSH(frag(s, append(e1.out, e2.out))); |
| 2468 break; | |
| 2469 | |
| 2470 case NFA_STAR: | |
|
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|
2471 /* Zero or more, prefer more */ |
| 4444 | 2472 if (nfa_calc_size == TRUE) |
| 2473 { | |
| 4458 | 2474 nstate++; |
| 4444 | 2475 break; |
| 2476 } | |
| 2477 e = POP(); | |
|
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|
2478 s = alloc_state(NFA_SPLIT, e.start, NULL); |
| 4444 | 2479 if (s == NULL) |
| 4484 | 2480 goto theend; |
| 4444 | 2481 patch(e.out, s); |
| 2482 PUSH(frag(s, list1(&s->out1))); | |
| 2483 break; | |
| 2484 | |
|
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|
2485 case NFA_STAR_NONGREEDY: |
|
811a4c9b51d8
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4673
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|
2486 /* Zero or more, prefer zero */ |
|
811a4c9b51d8
updated for version 7.3.1085
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|
2487 if (nfa_calc_size == TRUE) |
|
811a4c9b51d8
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|
2488 { |
|
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|
2489 nstate++; |
|
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|
2490 break; |
|
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|
2491 } |
|
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|
2492 e = POP(); |
|
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|
2493 s = alloc_state(NFA_SPLIT, NULL, e.start); |
|
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|
2494 if (s == NULL) |
|
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|
2495 goto theend; |
|
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|
2496 patch(e.out, s); |
|
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|
2497 PUSH(frag(s, list1(&s->out))); |
|
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|
2498 break; |
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|
2499 |
| 4444 | 2500 case NFA_QUEST: |
| 2501 /* one or zero atoms=> greedy match */ | |
| 2502 if (nfa_calc_size == TRUE) | |
| 2503 { | |
| 4458 | 2504 nstate++; |
| 4444 | 2505 break; |
| 2506 } | |
| 2507 e = POP(); | |
|
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|
2508 s = alloc_state(NFA_SPLIT, e.start, NULL); |
| 4444 | 2509 if (s == NULL) |
| 4484 | 2510 goto theend; |
| 4444 | 2511 PUSH(frag(s, append(e.out, list1(&s->out1)))); |
| 2512 break; | |
| 2513 | |
| 2514 case NFA_QUEST_NONGREEDY: | |
| 2515 /* zero or one atoms => non-greedy match */ | |
| 2516 if (nfa_calc_size == TRUE) | |
| 2517 { | |
| 4458 | 2518 nstate++; |
| 4444 | 2519 break; |
| 2520 } | |
| 2521 e = POP(); | |
|
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|
2522 s = alloc_state(NFA_SPLIT, NULL, e.start); |
| 4444 | 2523 if (s == NULL) |
| 4484 | 2524 goto theend; |
| 4444 | 2525 PUSH(frag(s, append(e.out, list1(&s->out)))); |
| 2526 break; | |
| 2527 | |
| 2528 case NFA_SKIP_CHAR: | |
| 2529 /* Symbol of 0-length, Used in a repetition | |
| 2530 * with max/min count of 0 */ | |
| 2531 if (nfa_calc_size == TRUE) | |
| 2532 { | |
| 4458 | 2533 nstate++; |
| 4444 | 2534 break; |
| 2535 } | |
|
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|
2536 s = alloc_state(NFA_SKIP_CHAR, NULL, NULL); |
| 4444 | 2537 if (s == NULL) |
| 4484 | 2538 goto theend; |
| 4444 | 2539 PUSH(frag(s, list1(&s->out))); |
| 2540 break; | |
| 2541 | |
| 2542 case NFA_PREV_ATOM_NO_WIDTH: | |
|
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|
2543 case NFA_PREV_ATOM_NO_WIDTH_NEG: |
|
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|
2544 case NFA_PREV_ATOM_JUST_BEFORE: |
|
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|
2545 case NFA_PREV_ATOM_JUST_BEFORE_NEG: |
|
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|
2546 /* The \@= operator: match the preceding atom with zero width. |
|
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|
2547 * The \@! operator: no match for the preceding atom. |
|
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2548 * The \@<= operator: match for the preceding atom. |
|
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|
2549 * The \@<! operator: no match for the preceding atom. |
| 4444 | 2550 * Surrounds the preceding atom with START_INVISIBLE and |
|
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|
2551 * END_INVISIBLE, similarly to MOPEN. */ |
| 4444 | 2552 |
| 2553 if (nfa_calc_size == TRUE) | |
| 2554 { | |
| 2555 nstate += 2; | |
| 2556 break; | |
| 2557 } | |
| 2558 e = POP(); | |
|
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|
2559 s1 = alloc_state(NFA_END_INVISIBLE, NULL, NULL); |
| 4444 | 2560 if (s1 == NULL) |
| 4484 | 2561 goto theend; |
| 4444 | 2562 patch(e.out, s1); |
| 2563 | |
|
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|
2564 s = alloc_state(NFA_START_INVISIBLE, e.start, s1); |
| 4444 | 2565 if (s == NULL) |
| 4484 | 2566 goto theend; |
|
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diff
changeset
|
2567 if (*p == NFA_PREV_ATOM_NO_WIDTH_NEG |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2568 || *p == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
|
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2569 { |
|
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2570 s->negated = TRUE; |
|
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2571 s1->negated = TRUE; |
|
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2572 } |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2573 if (*p == NFA_PREV_ATOM_JUST_BEFORE |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2574 || *p == NFA_PREV_ATOM_JUST_BEFORE_NEG) |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2575 { |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2576 s->val = *++p; /* get the count */ |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
2577 ++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
|
2578 } |
|
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
2579 |
| 4444 | 2580 PUSH(frag(s, list1(&s1->out))); |
| 2581 break; | |
| 2582 | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2583 #ifdef FEAT_MBYTE |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2584 case NFA_COMPOSING: /* char with composing char */ |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2585 #if 0 |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2586 /* TODO */ |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2587 if (regflags & RF_ICOMBINE) |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2588 { |
|
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
2589 /* use the base character only */ |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2590 } |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2591 #endif |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2592 /* FALLTHROUGH */ |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2593 #endif |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2594 |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2595 case NFA_MOPEN: /* \( \) Submatch */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2596 case NFA_MOPEN1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2597 case NFA_MOPEN2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2598 case NFA_MOPEN3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2599 case NFA_MOPEN4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2600 case NFA_MOPEN5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2601 case NFA_MOPEN6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2602 case NFA_MOPEN7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2603 case NFA_MOPEN8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2604 case NFA_MOPEN9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2605 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2606 case NFA_ZOPEN: /* \z( \) Submatch */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2607 case NFA_ZOPEN1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2608 case NFA_ZOPEN2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2609 case NFA_ZOPEN3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2610 case NFA_ZOPEN4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2611 case NFA_ZOPEN5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2612 case NFA_ZOPEN6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2613 case NFA_ZOPEN7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2614 case NFA_ZOPEN8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2615 case NFA_ZOPEN9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2616 #endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2617 case NFA_NOPEN: /* \%( \) "Invisible Submatch" */ |
| 4444 | 2618 if (nfa_calc_size == TRUE) |
| 2619 { | |
| 2620 nstate += 2; | |
| 2621 break; | |
| 2622 } | |
| 2623 | |
| 2624 mopen = *p; | |
| 2625 switch (*p) | |
| 2626 { | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2627 case NFA_NOPEN: mclose = NFA_NCLOSE; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2628 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2629 case NFA_ZOPEN: mclose = NFA_ZCLOSE; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2630 case NFA_ZOPEN1: mclose = NFA_ZCLOSE1; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2631 case NFA_ZOPEN2: mclose = NFA_ZCLOSE2; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2632 case NFA_ZOPEN3: mclose = NFA_ZCLOSE3; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2633 case NFA_ZOPEN4: mclose = NFA_ZCLOSE4; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2634 case NFA_ZOPEN5: mclose = NFA_ZCLOSE5; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2635 case NFA_ZOPEN6: mclose = NFA_ZCLOSE6; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2636 case NFA_ZOPEN7: mclose = NFA_ZCLOSE7; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2637 case NFA_ZOPEN8: mclose = NFA_ZCLOSE8; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2638 case NFA_ZOPEN9: mclose = NFA_ZCLOSE9; break; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2639 #endif |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2640 #ifdef FEAT_MBYTE |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2641 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
|
2642 #endif |
| 4444 | 2643 default: |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2644 /* NFA_MOPEN, NFA_MOPEN1 .. NFA_MOPEN9 */ |
| 4444 | 2645 mclose = *p + NSUBEXP; |
| 2646 break; | |
| 2647 } | |
| 2648 | |
| 2649 /* Allow "NFA_MOPEN" as a valid postfix representation for | |
| 2650 * the empty regexp "". In this case, the NFA will be | |
| 2651 * NFA_MOPEN -> NFA_MCLOSE. Note that this also allows | |
| 2652 * empty groups of parenthesis, and empty mbyte chars */ | |
| 2653 if (stackp == stack) | |
| 2654 { | |
|
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2655 s = alloc_state(mopen, NULL, NULL); |
| 4444 | 2656 if (s == NULL) |
| 4484 | 2657 goto theend; |
|
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2658 s1 = alloc_state(mclose, NULL, NULL); |
| 4444 | 2659 if (s1 == NULL) |
| 4484 | 2660 goto theend; |
| 4444 | 2661 patch(list1(&s->out), s1); |
| 2662 PUSH(frag(s, list1(&s1->out))); | |
| 2663 break; | |
| 2664 } | |
| 2665 | |
| 2666 /* At least one node was emitted before NFA_MOPEN, so | |
| 2667 * at least one node will be between NFA_MOPEN and NFA_MCLOSE */ | |
| 2668 e = POP(); | |
|
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2669 s = alloc_state(mopen, e.start, NULL); /* `(' */ |
| 4444 | 2670 if (s == NULL) |
| 4484 | 2671 goto theend; |
| 4444 | 2672 |
|
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2673 s1 = alloc_state(mclose, NULL, NULL); /* `)' */ |
| 4444 | 2674 if (s1 == NULL) |
| 4484 | 2675 goto theend; |
| 4444 | 2676 patch(e.out, s1); |
| 2677 | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2678 #ifdef FEAT_MBYTE |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2679 if (mopen == NFA_COMPOSING) |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
2680 /* COMPOSING->out1 = END_COMPOSING */ |
| 4444 | 2681 patch(list1(&s->out1), s1); |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
2682 #endif |
| 4444 | 2683 |
| 2684 PUSH(frag(s, list1(&s1->out))); | |
| 2685 break; | |
| 2686 | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2687 case NFA_BACKREF1: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2688 case NFA_BACKREF2: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2689 case NFA_BACKREF3: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2690 case NFA_BACKREF4: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2691 case NFA_BACKREF5: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2692 case NFA_BACKREF6: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2693 case NFA_BACKREF7: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2694 case NFA_BACKREF8: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2695 case NFA_BACKREF9: |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2696 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2697 case NFA_ZREF1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2698 case NFA_ZREF2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2699 case NFA_ZREF3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2700 case NFA_ZREF4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2701 case NFA_ZREF5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2702 case NFA_ZREF6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2703 case NFA_ZREF7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2704 case NFA_ZREF8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2705 case NFA_ZREF9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2706 #endif |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2707 if (nfa_calc_size == TRUE) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2708 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2709 nstate += 2; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2710 break; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2711 } |
|
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2712 s = alloc_state(*p, NULL, NULL); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2713 if (s == NULL) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2714 goto theend; |
|
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2715 s1 = alloc_state(NFA_SKIP, NULL, NULL); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2716 if (s1 == NULL) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2717 goto theend; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2718 patch(list1(&s->out), s1); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
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4569
diff
changeset
|
2719 PUSH(frag(s, list1(&s1->out))); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2720 break; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2721 |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2722 case NFA_LNUM: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
2723 case NFA_LNUM_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2724 case NFA_LNUM_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2725 case NFA_VCOL: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2726 case NFA_VCOL_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2727 case NFA_VCOL_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2728 case NFA_COL: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2729 case NFA_COL_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2730 case NFA_COL_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2731 if (nfa_calc_size == TRUE) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2732 { |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2733 nstate += 1; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2734 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2735 } |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2736 e1 = POP(); |
|
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2737 s = alloc_state(*p, NULL, NULL); |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
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diff
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|
2738 if (s == NULL) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2739 goto theend; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2740 s->val = e1.start->c; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2741 PUSH(frag(s, list1(&s->out))); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
2742 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2743 |
| 4444 | 2744 case NFA_ZSTART: |
| 2745 case NFA_ZEND: | |
| 2746 default: | |
| 2747 /* Operands */ | |
| 2748 if (nfa_calc_size == TRUE) | |
| 2749 { | |
| 4458 | 2750 nstate++; |
| 4444 | 2751 break; |
| 2752 } | |
|
4696
ed4e689bbea1
updated for version 7.3.1095
Bram Moolenaar <bram@vim.org>
parents:
4694
diff
changeset
|
2753 s = alloc_state(*p, NULL, NULL); |
| 4444 | 2754 if (s == NULL) |
| 4484 | 2755 goto theend; |
| 4444 | 2756 PUSH(frag(s, list1(&s->out))); |
| 2757 break; | |
| 2758 | |
| 2759 } /* switch(*p) */ | |
| 2760 | |
| 2761 } /* for(p = postfix; *p; ++p) */ | |
| 2762 | |
| 2763 if (nfa_calc_size == TRUE) | |
| 2764 { | |
| 4458 | 2765 nstate++; |
| 4484 | 2766 goto theend; /* Return value when counting size is ignored anyway */ |
| 4444 | 2767 } |
| 2768 | |
| 2769 e = POP(); | |
| 2770 if (stackp != stack) | |
| 2771 EMSG_RET_NULL(_("E875: (NFA regexp) (While converting from postfix to NFA), too many states left on stack")); | |
| 2772 | |
| 2773 if (istate >= nstate) | |
| 2774 EMSG_RET_NULL(_("E876: (NFA regexp) Not enough space to store the whole NFA ")); | |
| 2775 | |
| 2776 matchstate = &state_ptr[istate++]; /* the match state */ | |
| 2777 matchstate->c = NFA_MATCH; | |
| 2778 matchstate->out = matchstate->out1 = NULL; | |
| 2779 | |
| 2780 patch(e.out, matchstate); | |
| 4484 | 2781 ret = e.start; |
| 2782 | |
| 2783 theend: | |
| 2784 vim_free(stack); | |
| 2785 return ret; | |
| 4444 | 2786 |
| 2787 #undef POP1 | |
| 2788 #undef PUSH1 | |
| 2789 #undef POP2 | |
| 2790 #undef PUSH2 | |
| 2791 #undef POP | |
| 2792 #undef PUSH | |
| 2793 } | |
| 2794 | |
| 2795 /**************************************************************** | |
| 2796 * NFA execution code. | |
| 2797 ****************************************************************/ | |
| 2798 | |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
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diff
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|
2799 typedef struct |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2800 { |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2801 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
|
2802 |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2803 /* 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:
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diff
changeset
|
2804 union |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2805 { |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2806 struct multipos |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2807 { |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2808 lpos_T start; |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2809 lpos_T end; |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2810 } multi[NSUBEXP]; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2811 struct linepos |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2812 { |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2813 char_u *start; |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2814 char_u *end; |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2815 } line[NSUBEXP]; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
2816 } list; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2817 } regsub_T; |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
2818 |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2819 typedef struct |
|
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 regsub_T norm; /* \( .. \) matches */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2822 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2823 regsub_T synt; /* \z( .. \) matches */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2824 #endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
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diff
changeset
|
2825 } regsubs_T; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2826 |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2827 /* 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
|
2828 typedef struct |
| 4444 | 2829 { |
| 2830 nfa_state_T *state; | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2831 int count; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2832 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
|
2833 } nfa_thread_T; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2834 |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2835 /* nfa_list_T contains the alternative NFA execution states. */ |
| 4444 | 2836 typedef struct |
| 2837 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2838 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
|
2839 int n; /* nr of states currently in "t" */ |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2840 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
|
2841 int id; /* ID of the list */ |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2842 } nfa_list_T; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
2843 |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2844 #ifdef ENABLE_LOG |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2845 static void log_subsexpr __ARGS((regsubs_T *subs)); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2846 static void log_subexpr __ARGS((regsub_T *sub)); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2847 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2848 static void |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2849 log_subsexpr(subs) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2850 regsubs_T *subs; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
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4682
diff
changeset
|
2851 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2852 log_subexpr(&subs->norm); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2853 # ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
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4682
diff
changeset
|
2854 log_subexpr(&subs->synt); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
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diff
changeset
|
2855 # endif |
|
8db697ae406a
updated for version 7.3.1090
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diff
changeset
|
2856 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
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4682
diff
changeset
|
2857 |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
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4569
diff
changeset
|
2858 static void |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
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4569
diff
changeset
|
2859 log_subexpr(sub) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2860 regsub_T *sub; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2861 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
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4569
diff
changeset
|
2862 int j; |
|
b2a8e3a66f8c
updated for version 7.3.1033
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diff
changeset
|
2863 |
|
b2a8e3a66f8c
updated for version 7.3.1033
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4569
diff
changeset
|
2864 for (j = 0; j < sub->in_use; j++) |
|
b2a8e3a66f8c
updated for version 7.3.1033
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diff
changeset
|
2865 if (REG_MULTI) |
|
b2a8e3a66f8c
updated for version 7.3.1033
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4569
diff
changeset
|
2866 fprintf(log_fd, "\n *** group %d, start: c=%d, l=%d, end: c=%d, l=%d", |
|
b2a8e3a66f8c
updated for version 7.3.1033
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diff
changeset
|
2867 j, |
|
4577
b22bff1a6af8
updated for version 7.3.1036
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4573
diff
changeset
|
2868 sub->list.multi[j].start.col, |
|
b22bff1a6af8
updated for version 7.3.1036
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4573
diff
changeset
|
2869 (int)sub->list.multi[j].start.lnum, |
|
b22bff1a6af8
updated for version 7.3.1036
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4573
diff
changeset
|
2870 sub->list.multi[j].end.col, |
|
b22bff1a6af8
updated for version 7.3.1036
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4573
diff
changeset
|
2871 (int)sub->list.multi[j].end.lnum); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
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changeset
|
2872 else |
|
b2a8e3a66f8c
updated for version 7.3.1033
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4569
diff
changeset
|
2873 fprintf(log_fd, "\n *** group %d, start: \"%s\", end: \"%s\"", |
|
b2a8e3a66f8c
updated for version 7.3.1033
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diff
changeset
|
2874 j, |
|
4577
b22bff1a6af8
updated for version 7.3.1036
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4573
diff
changeset
|
2875 (char *)sub->list.line[j].start, |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
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4573
diff
changeset
|
2876 (char *)sub->list.line[j].end); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
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4569
diff
changeset
|
2877 fprintf(log_fd, "\n"); |
|
b2a8e3a66f8c
updated for version 7.3.1033
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4569
diff
changeset
|
2878 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
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4569
diff
changeset
|
2879 #endif |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
2880 |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2881 /* 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
|
2882 static int nfa_match; |
|
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
2883 |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2884 static void clear_sub __ARGS((regsub_T *sub)); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2885 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
|
2886 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
|
2887 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
|
2888 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
|
2889 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
|
2890 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2891 static void |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2892 clear_sub(sub) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2893 regsub_T *sub; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2894 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2895 if (REG_MULTI) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2896 /* Use 0xff to set lnum to -1 */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2897 vim_memset(sub->list.multi, 0xff, |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2898 sizeof(struct multipos) * nfa_nsubexpr); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2899 else |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2900 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
|
2901 sub->in_use = 0; |
|
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 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2904 /* |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2905 * Copy the submatches from "from" to "to". |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2906 */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2907 static void |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2908 copy_sub(to, from) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2909 regsub_T *to; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2910 regsub_T *from; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2911 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2912 to->in_use = from->in_use; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2913 if (from->in_use > 0) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2914 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2915 /* Copy the match start and end positions. */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2916 if (REG_MULTI) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2917 mch_memmove(&to->list.multi[0], |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2918 &from->list.multi[0], |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2919 sizeof(struct multipos) * from->in_use); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2920 else |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2921 mch_memmove(&to->list.line[0], |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2922 &from->list.line[0], |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2923 sizeof(struct linepos) * from->in_use); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2924 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2925 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2926 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2927 /* |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2928 * Like copy_sub() but exclude the main match. |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2929 */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2930 static void |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2931 copy_sub_off(to, from) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2932 regsub_T *to; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2933 regsub_T *from; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2934 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2935 if (to->in_use < from->in_use) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2936 to->in_use = from->in_use; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2937 if (from->in_use > 1) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2938 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2939 /* Copy the match start and end positions. */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2940 if (REG_MULTI) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2941 mch_memmove(&to->list.multi[1], |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2942 &from->list.multi[1], |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2943 sizeof(struct multipos) * (from->in_use - 1)); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2944 else |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2945 mch_memmove(&to->list.line[1], |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2946 &from->list.line[1], |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2947 sizeof(struct linepos) * (from->in_use - 1)); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2948 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
2949 } |
| 4444 | 2950 |
|
4647
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 * 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
|
2953 */ |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2954 static int |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2955 sub_equal(sub1, sub2) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2956 regsub_T *sub1; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2957 regsub_T *sub2; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2958 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2959 int i; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2960 int todo; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2961 linenr_T s1, e1; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2962 linenr_T s2, e2; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2963 char_u *sp1, *ep1; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2964 char_u *sp2, *ep2; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2965 |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2966 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
|
2967 if (REG_MULTI) |
|
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 for (i = 0; i < todo; ++i) |
|
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 if (i < sub1->in_use) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2972 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2973 s1 = sub1->list.multi[i].start.lnum; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2974 e1 = sub1->list.multi[i].end.lnum; |
|
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 else |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2977 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2978 s1 = 0; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2979 e1 = 0; |
|
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 if (i < sub2->in_use) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2982 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2983 s2 = sub2->list.multi[i].start.lnum; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2984 e2 = sub2->list.multi[i].end.lnum; |
|
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 else |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2987 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2988 s2 = 0; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2989 e2 = 0; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2990 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2991 if (s1 != s2 || e1 != e2) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2992 return FALSE; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2993 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
|
2994 != sub2->list.multi[i].start.col) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2995 return FALSE; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2996 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
|
2997 != sub2->list.multi[i].end.col) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2998 return FALSE; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
2999 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3000 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3001 else |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3002 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3003 for (i = 0; i < todo; ++i) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3004 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3005 if (i < sub1->in_use) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3006 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3007 sp1 = sub1->list.line[i].start; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3008 ep1 = sub1->list.line[i].end; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3009 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3010 else |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3011 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3012 sp1 = NULL; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3013 ep1 = NULL; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3014 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3015 if (i < sub2->in_use) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3016 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3017 sp2 = sub2->list.line[i].start; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3018 ep2 = sub2->list.line[i].end; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3019 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3020 else |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3021 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3022 sp2 = NULL; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3023 ep2 = NULL; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3024 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3025 if (sp1 != sp2 || ep1 != ep2) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3026 return FALSE; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3027 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3028 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3029 |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3030 return TRUE; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3031 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3032 |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3033 #ifdef ENABLE_LOG |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3034 static void |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3035 report_state(char *action, regsub_T *sub, nfa_state_T *state, int lid); |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3036 { |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3037 int col; |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3038 |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3039 if (sub->in_use <= 0) |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3040 col = -1; |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3041 else if (REG_MULTI) |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3042 col = sub->list.multi[0].start.col; |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3043 else |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3044 col = (int)(sub->list.line[0].start - regline); |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3045 nfa_set_code(state->c); |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3046 fprintf(log_fd, "> %s state %d to list %d. char %d: %s (start col %d)\n", |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3047 action, abs(state->id), lid, state->c, code, col); |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3048 } |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3049 #endif |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3050 |
| 4444 | 3051 static void |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3052 addstate(l, state, subs, off) |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3053 nfa_list_T *l; /* runtime state list */ |
| 4444 | 3054 nfa_state_T *state; /* state to update */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3055 regsubs_T *subs; /* pointers to subexpressions */ |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3056 int off; /* byte offset, when -1 go to next line */ |
| 4444 | 3057 { |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3058 int subidx; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3059 nfa_thread_T *thread; |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3060 lpos_T save_lpos; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3061 int save_in_use; |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3062 char_u *save_ptr; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3063 int i; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3064 regsub_T *sub; |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3065 #ifdef ENABLE_LOG |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3066 int did_print = FALSE; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3067 #endif |
| 4444 | 3068 |
| 3069 if (l == NULL || state == NULL) | |
| 3070 return; | |
| 3071 | |
| 3072 switch (state->c) | |
| 3073 { | |
| 3074 case NFA_SPLIT: | |
| 3075 case NFA_NOT: | |
| 3076 case NFA_NOPEN: | |
| 3077 case NFA_NCLOSE: | |
| 3078 case NFA_MCLOSE: | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3079 case NFA_MCLOSE1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3080 case NFA_MCLOSE2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3081 case NFA_MCLOSE3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3082 case NFA_MCLOSE4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3083 case NFA_MCLOSE5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3084 case NFA_MCLOSE6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3085 case NFA_MCLOSE7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3086 case NFA_MCLOSE8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3087 case NFA_MCLOSE9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3088 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3089 case NFA_ZCLOSE: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3090 case NFA_ZCLOSE1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3091 case NFA_ZCLOSE2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3092 case NFA_ZCLOSE3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3093 case NFA_ZCLOSE4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3094 case NFA_ZCLOSE5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3095 case NFA_ZCLOSE6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3096 case NFA_ZCLOSE7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3097 case NFA_ZCLOSE8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3098 case NFA_ZCLOSE9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3099 #endif |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3100 /* 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
|
3101 * "out1" may be added below. */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3102 break; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3103 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3104 case NFA_MOPEN: |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3105 case NFA_MOPEN1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3106 case NFA_MOPEN2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3107 case NFA_MOPEN3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3108 case NFA_MOPEN4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3109 case NFA_MOPEN5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3110 case NFA_MOPEN6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3111 case NFA_MOPEN7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3112 case NFA_MOPEN8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3113 case NFA_MOPEN9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3114 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3115 case NFA_ZOPEN: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3116 case NFA_ZOPEN1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3117 case NFA_ZOPEN2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3118 case NFA_ZOPEN3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3119 case NFA_ZOPEN4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3120 case NFA_ZOPEN5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3121 case NFA_ZOPEN6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3122 case NFA_ZOPEN7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3123 case NFA_ZOPEN8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3124 case NFA_ZOPEN9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3125 #endif |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3126 /* 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
|
3127 * when it was tried to be added to this list before. */ |
|
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3128 if (state->lastlist[nfa_ll_index] == l->id) |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3129 goto skip_add; |
|
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3130 state->lastlist[nfa_ll_index] = l->id; |
| 4444 | 3131 break; |
| 3132 | |
|
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3133 case NFA_BOL: |
|
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3134 case NFA_BOF: |
|
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3135 /* "^" won't match past end-of-line, don't bother trying. |
|
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3136 * Except when we are going to the next line for a look-behind |
|
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3137 * match. */ |
|
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3138 if (reginput > regline |
|
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3139 && (nfa_endp == NULL |
|
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3140 || !REG_MULTI |
|
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3141 || reglnum == nfa_endp->se_u.pos.lnum)) |
|
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3142 goto skip_add; |
|
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3143 /* FALLTHROUGH */ |
|
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3144 |
| 4444 | 3145 default: |
|
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3146 if (state->lastlist[nfa_ll_index] == l->id) |
| 4444 | 3147 { |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3148 /* 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
|
3149 * 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
|
3150 if (!nfa_has_backref) |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3151 { |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3152 skip_add: |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3153 #ifdef ENABLE_LOG |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3154 nfa_set_code(state->c); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3155 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
|
3156 abs(state->id), l->id, state->c, code); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3157 #endif |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3158 return; |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3159 } |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3160 |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3161 /* 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
|
3162 * positions. */ |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3163 for (i = 0; i < l->n; ++i) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3164 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3165 thread = &l->t[i]; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3166 if (thread->state->id == state->id |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3167 && sub_equal(&thread->subs.norm, &subs->norm) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3168 #ifdef FEAT_SYN_HL |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3169 && (!nfa_has_zsubexpr || |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3170 sub_equal(&thread->subs.synt, &subs->synt)) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3171 #endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3172 ) |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3173 goto skip_add; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3174 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3175 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3176 |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3177 /* 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
|
3178 * lot) bigger */ |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3179 if (nfa_has_backref && l->n == l->len) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3180 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3181 int newlen = l->len * 3 / 2 + 50; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3182 |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3183 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
|
3184 l->len = newlen; |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3185 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3186 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3187 /* add the state to the list */ |
|
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3188 state->lastlist[nfa_ll_index] = l->id; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3189 thread = &l->t[l->n++]; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3190 thread->state = state; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3191 copy_sub(&thread->subs.norm, &subs->norm); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3192 #ifdef FEAT_SYN_HL |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3193 if (nfa_has_zsubexpr) |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3194 copy_sub(&thread->subs.synt, &subs->synt); |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3195 #endif |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3196 #ifdef ENABLE_LOG |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3197 report_state("Adding", &thread->subs.norm, state, l->id); |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3198 did_print = TRUE; |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3199 #endif |
| 4444 | 3200 } |
| 3201 | |
| 3202 #ifdef ENABLE_LOG | |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
3203 if (!did_print) |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3204 report_state("Processing", &subs->norm, state, l->id); |
| 4444 | 3205 #endif |
| 3206 switch (state->c) | |
| 3207 { | |
| 3208 case NFA_MATCH: | |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3209 nfa_match = TRUE; |
| 4444 | 3210 break; |
| 3211 | |
| 3212 case NFA_SPLIT: | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3213 /* order matters here */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3214 addstate(l, state->out, subs, off); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3215 addstate(l, state->out1, subs, off); |
| 4444 | 3216 break; |
| 3217 | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3218 case NFA_SKIP_CHAR: |
| 4444 | 3219 case NFA_NOPEN: |
| 3220 case NFA_NCLOSE: | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3221 addstate(l, state->out, subs, off); |
| 4444 | 3222 break; |
| 3223 | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3224 case NFA_MOPEN: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3225 case NFA_MOPEN1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3226 case NFA_MOPEN2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3227 case NFA_MOPEN3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3228 case NFA_MOPEN4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3229 case NFA_MOPEN5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3230 case NFA_MOPEN6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3231 case NFA_MOPEN7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3232 case NFA_MOPEN8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3233 case NFA_MOPEN9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3234 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3235 case NFA_ZOPEN: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3236 case NFA_ZOPEN1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3237 case NFA_ZOPEN2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3238 case NFA_ZOPEN3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3239 case NFA_ZOPEN4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3240 case NFA_ZOPEN5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3241 case NFA_ZOPEN6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3242 case NFA_ZOPEN7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3243 case NFA_ZOPEN8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3244 case NFA_ZOPEN9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3245 #endif |
| 4444 | 3246 case NFA_ZSTART: |
| 3247 if (state->c == NFA_ZSTART) | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3248 { |
| 4444 | 3249 subidx = 0; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3250 sub = &subs->norm; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3251 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3252 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3253 else if (state->c >= NFA_ZOPEN) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3254 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3255 subidx = state->c - NFA_ZOPEN; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3256 sub = &subs->synt; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3257 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3258 #endif |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3259 else |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3260 { |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3261 subidx = state->c - NFA_MOPEN; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3262 sub = &subs->norm; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3263 } |
| 4444 | 3264 |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3265 /* 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
|
3266 * 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
|
3267 save_ptr = NULL; |
| 4444 | 3268 if (REG_MULTI) |
| 3269 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3270 if (subidx < sub->in_use) |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3271 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3272 save_lpos = sub->list.multi[subidx].start; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3273 save_in_use = -1; |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3274 } |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3275 else |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3276 { |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3277 save_in_use = sub->in_use; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3278 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
|
3279 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3280 sub->list.multi[i].start.lnum = -1; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3281 sub->list.multi[i].end.lnum = -1; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3282 } |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3283 sub->in_use = subidx + 1; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3284 } |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3285 if (off == -1) |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3286 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3287 sub->list.multi[subidx].start.lnum = reglnum + 1; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3288 sub->list.multi[subidx].start.col = 0; |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3289 } |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3290 else |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3291 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3292 sub->list.multi[subidx].start.lnum = reglnum; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3293 sub->list.multi[subidx].start.col = |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3294 (colnr_T)(reginput - regline + off); |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3295 } |
| 4444 | 3296 } |
| 3297 else | |
| 3298 { | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3299 if (subidx < sub->in_use) |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3300 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3301 save_ptr = sub->list.line[subidx].start; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3302 save_in_use = -1; |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3303 } |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3304 else |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3305 { |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3306 save_in_use = sub->in_use; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3307 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
|
3308 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3309 sub->list.line[i].start = NULL; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3310 sub->list.line[i].end = NULL; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3311 } |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3312 sub->in_use = subidx + 1; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3313 } |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3314 sub->list.line[subidx].start = reginput + off; |
| 4444 | 3315 } |
| 3316 | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3317 addstate(l, state->out, subs, off); |
| 4444 | 3318 |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3319 if (save_in_use == -1) |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3320 { |
|
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3321 if (REG_MULTI) |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3322 sub->list.multi[subidx].start = save_lpos; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3323 else |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3324 sub->list.line[subidx].start = save_ptr; |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3325 } |
| 4444 | 3326 else |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3327 sub->in_use = save_in_use; |
| 4444 | 3328 break; |
| 3329 | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3330 case NFA_MCLOSE: |
|
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
3331 if (nfa_has_zend) |
| 4444 | 3332 { |
|
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
3333 /* 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
|
3334 * 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
|
3335 addstate(l, state->out, subs, off); |
| 4444 | 3336 break; |
| 3337 } | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3338 case NFA_MCLOSE1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3339 case NFA_MCLOSE2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3340 case NFA_MCLOSE3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3341 case NFA_MCLOSE4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3342 case NFA_MCLOSE5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3343 case NFA_MCLOSE6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3344 case NFA_MCLOSE7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3345 case NFA_MCLOSE8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3346 case NFA_MCLOSE9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3347 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3348 case NFA_ZCLOSE: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3349 case NFA_ZCLOSE1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3350 case NFA_ZCLOSE2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3351 case NFA_ZCLOSE3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3352 case NFA_ZCLOSE4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3353 case NFA_ZCLOSE5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3354 case NFA_ZCLOSE6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3355 case NFA_ZCLOSE7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3356 case NFA_ZCLOSE8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3357 case NFA_ZCLOSE9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3358 #endif |
| 4444 | 3359 case NFA_ZEND: |
| 3360 if (state->c == NFA_ZEND) | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3361 { |
| 4444 | 3362 subidx = 0; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3363 sub = &subs->norm; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3364 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3365 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3366 else if (state->c >= NFA_ZCLOSE) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3367 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3368 subidx = state->c - NFA_ZCLOSE; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3369 sub = &subs->synt; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3370 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3371 #endif |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3372 else |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3373 { |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3374 subidx = state->c - NFA_MCLOSE; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3375 sub = &subs->norm; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3376 } |
| 4444 | 3377 |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3378 /* 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
|
3379 * has done that. */ |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3380 save_in_use = sub->in_use; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3381 if (sub->in_use <= subidx) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3382 sub->in_use = subidx + 1; |
| 4444 | 3383 if (REG_MULTI) |
| 3384 { | |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3385 save_lpos = sub->list.multi[subidx].end; |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3386 if (off == -1) |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3387 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3388 sub->list.multi[subidx].end.lnum = reglnum + 1; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3389 sub->list.multi[subidx].end.col = 0; |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3390 } |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3391 else |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3392 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3393 sub->list.multi[subidx].end.lnum = reglnum; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3394 sub->list.multi[subidx].end.col = |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3395 (colnr_T)(reginput - regline + off); |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3396 } |
| 4444 | 3397 } |
| 3398 else | |
| 3399 { | |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3400 save_ptr = sub->list.line[subidx].end; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3401 sub->list.line[subidx].end = reginput + off; |
| 4444 | 3402 } |
| 3403 | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3404 addstate(l, state->out, subs, off); |
| 4444 | 3405 |
| 3406 if (REG_MULTI) | |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3407 sub->list.multi[subidx].end = save_lpos; |
| 4444 | 3408 else |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3409 sub->list.line[subidx].end = save_ptr; |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3410 sub->in_use = save_in_use; |
| 4444 | 3411 break; |
| 3412 } | |
| 3413 } | |
| 3414 | |
| 3415 /* | |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3416 * 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
|
3417 * 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
|
3418 * 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
|
3419 * matters for alternatives. |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3420 */ |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3421 static void |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3422 addstate_here(l, state, subs, ip) |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3423 nfa_list_T *l; /* runtime state list */ |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3424 nfa_state_T *state; /* state to update */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3425 regsubs_T *subs; /* pointers to subexpressions */ |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3426 int *ip; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3427 { |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3428 int tlen = l->n; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3429 int count; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3430 int i = *ip; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3431 |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3432 /* 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
|
3433 addstate(l, state, subs, 0); |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3434 |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3435 /* 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
|
3436 if (i + 1 == tlen) |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3437 return; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3438 |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3439 /* 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
|
3440 count = l->n - tlen; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3441 if (count == 1) |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3442 { |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3443 /* overwrite the current state */ |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3444 l->t[i] = l->t[l->n - 1]; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3445 } |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3446 else if (count > 1) |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3447 { |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3448 /* 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
|
3449 * end to the current position */ |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3450 mch_memmove(&(l->t[i + count]), |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3451 &(l->t[i + 1]), |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3452 sizeof(nfa_thread_T) * (l->n - i - 1)); |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3453 mch_memmove(&(l->t[i]), |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3454 &(l->t[l->n - 1]), |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3455 sizeof(nfa_thread_T) * count); |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3456 } |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3457 --l->n; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3458 *ip = i - 1; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3459 } |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3460 |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3461 /* |
| 4444 | 3462 * Check character class "class" against current character c. |
| 3463 */ | |
| 3464 static int | |
| 3465 check_char_class(class, c) | |
| 3466 int class; | |
| 3467 int c; | |
| 3468 { | |
| 3469 switch (class) | |
| 3470 { | |
| 3471 case NFA_CLASS_ALNUM: | |
| 4464 | 3472 if (c >= 1 && c <= 255 && isalnum(c)) |
| 4444 | 3473 return OK; |
| 3474 break; | |
| 3475 case NFA_CLASS_ALPHA: | |
| 4464 | 3476 if (c >= 1 && c <= 255 && isalpha(c)) |
| 4444 | 3477 return OK; |
| 3478 break; | |
| 3479 case NFA_CLASS_BLANK: | |
| 3480 if (c == ' ' || c == '\t') | |
| 3481 return OK; | |
| 3482 break; | |
| 3483 case NFA_CLASS_CNTRL: | |
| 4464 | 3484 if (c >= 1 && c <= 255 && iscntrl(c)) |
| 4444 | 3485 return OK; |
| 3486 break; | |
| 3487 case NFA_CLASS_DIGIT: | |
| 3488 if (VIM_ISDIGIT(c)) | |
| 3489 return OK; | |
| 3490 break; | |
| 3491 case NFA_CLASS_GRAPH: | |
| 4464 | 3492 if (c >= 1 && c <= 255 && isgraph(c)) |
| 4444 | 3493 return OK; |
| 3494 break; | |
| 3495 case NFA_CLASS_LOWER: | |
| 3496 if (MB_ISLOWER(c)) | |
| 3497 return OK; | |
| 3498 break; | |
| 3499 case NFA_CLASS_PRINT: | |
| 3500 if (vim_isprintc(c)) | |
| 3501 return OK; | |
| 3502 break; | |
| 3503 case NFA_CLASS_PUNCT: | |
| 4464 | 3504 if (c >= 1 && c <= 255 && ispunct(c)) |
| 4444 | 3505 return OK; |
| 3506 break; | |
| 3507 case NFA_CLASS_SPACE: | |
| 3508 if ((c >=9 && c <= 13) || (c == ' ')) | |
| 3509 return OK; | |
| 3510 break; | |
| 3511 case NFA_CLASS_UPPER: | |
| 3512 if (MB_ISUPPER(c)) | |
| 3513 return OK; | |
| 3514 break; | |
| 3515 case NFA_CLASS_XDIGIT: | |
| 3516 if (vim_isxdigit(c)) | |
| 3517 return OK; | |
| 3518 break; | |
| 3519 case NFA_CLASS_TAB: | |
| 3520 if (c == '\t') | |
| 3521 return OK; | |
| 3522 break; | |
| 3523 case NFA_CLASS_RETURN: | |
| 3524 if (c == '\r') | |
| 3525 return OK; | |
| 3526 break; | |
| 3527 case NFA_CLASS_BACKSPACE: | |
| 3528 if (c == '\b') | |
| 3529 return OK; | |
| 3530 break; | |
| 3531 case NFA_CLASS_ESCAPE: | |
| 3532 if (c == '\033') | |
| 3533 return OK; | |
| 3534 break; | |
| 3535 | |
| 3536 default: | |
| 3537 /* should not be here :P */ | |
| 3538 EMSG_RET_FAIL(_("E877: (NFA regexp) Invalid character class ")); | |
| 3539 } | |
| 3540 return FAIL; | |
| 3541 } | |
| 3542 | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3543 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
|
3544 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3545 /* |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3546 * Check for a match with subexpression "subidx". |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3547 * Return TRUE if it matches. |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3548 */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3549 static int |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3550 match_backref(sub, subidx, bytelen) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3551 regsub_T *sub; /* pointers to subexpressions */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3552 int subidx; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3553 int *bytelen; /* out: length of match in bytes */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3554 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3555 int len; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3556 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3557 if (sub->in_use <= subidx) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3558 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3559 retempty: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3560 /* backref was not set, match an empty string */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3561 *bytelen = 0; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3562 return TRUE; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3563 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3564 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3565 if (REG_MULTI) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3566 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3567 if (sub->list.multi[subidx].start.lnum < 0 |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3568 || sub->list.multi[subidx].end.lnum < 0) |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3569 goto retempty; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3570 /* TODO: line breaks */ |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3571 len = sub->list.multi[subidx].end.col |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3572 - sub->list.multi[subidx].start.col; |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3573 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
|
3574 reginput, &len) == 0) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3575 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3576 *bytelen = len; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3577 return TRUE; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3578 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3579 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3580 else |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3581 { |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3582 if (sub->list.line[subidx].start == NULL |
|
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3583 || sub->list.line[subidx].end == NULL) |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3584 goto retempty; |
|
4577
b22bff1a6af8
updated for version 7.3.1036
Bram Moolenaar <bram@vim.org>
parents:
4573
diff
changeset
|
3585 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
|
3586 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
|
3587 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3588 *bytelen = len; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3589 return TRUE; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3590 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3591 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3592 return FALSE; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3593 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3594 |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3595 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3596 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3597 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
|
3598 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3599 /* |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3600 * Check for a match with \z subexpression "subidx". |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3601 * Return TRUE if it matches. |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3602 */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3603 static int |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3604 match_zref(subidx, bytelen) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3605 int subidx; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3606 int *bytelen; /* out: length of match in bytes */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3607 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3608 int len; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3609 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3610 cleanup_zsubexpr(); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3611 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
|
3612 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3613 /* backref was not set, match an empty string */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3614 *bytelen = 0; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3615 return TRUE; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3616 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3617 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3618 len = (int)STRLEN(re_extmatch_in->matches[subidx]); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3619 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
|
3620 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3621 *bytelen = len; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3622 return TRUE; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3623 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3624 return FALSE; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3625 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3626 #endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3627 |
| 4444 | 3628 /* |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3629 * Save list IDs for all NFA states of "prog" into "list". |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3630 * Also reset the IDs to zero. |
|
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3631 * Only used for the recursive value lastlist[1]. |
| 4444 | 3632 */ |
| 3633 static void | |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3634 nfa_save_listids(prog, list) |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3635 nfa_regprog_T *prog; |
| 4444 | 3636 int *list; |
| 3637 { | |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3638 int i; |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3639 nfa_state_T *p; |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3640 |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3641 /* Order in the list is reverse, it's a bit faster that way. */ |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3642 p = &prog->state[0]; |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3643 for (i = prog->nstate; --i >= 0; ) |
| 4444 | 3644 { |
|
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3645 list[i] = p->lastlist[1]; |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3646 p->lastlist[1] = 0; |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3647 ++p; |
| 4444 | 3648 } |
| 3649 } | |
| 3650 | |
| 3651 /* | |
| 3652 * Restore list IDs from "list" to all NFA states. | |
| 3653 */ | |
| 3654 static void | |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3655 nfa_restore_listids(prog, list) |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3656 nfa_regprog_T *prog; |
| 4444 | 3657 int *list; |
| 3658 { | |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3659 int i; |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3660 nfa_state_T *p; |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3661 |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3662 p = &prog->state[0]; |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3663 for (i = prog->nstate; --i >= 0; ) |
| 4444 | 3664 { |
|
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3665 p->lastlist[1] = list[i]; |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3666 ++p; |
| 4444 | 3667 } |
| 3668 } | |
| 3669 | |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3670 static int |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3671 nfa_re_num_cmp(val, op, pos) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3672 long_u val; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3673 int op; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3674 long_u pos; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3675 { |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3676 if (op == 1) return pos > val; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3677 if (op == 2) return pos < val; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3678 return val == pos; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3679 } |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
3680 |
|
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3681 static int recursive_regmatch __ARGS((nfa_state_T *state, nfa_regprog_T *prog, regsubs_T *submatch, regsubs_T *m, int **listids)); |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3682 static int nfa_regmatch __ARGS((nfa_regprog_T *prog, nfa_state_T *start, regsubs_T *submatch, regsubs_T *m)); |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3683 |
| 4444 | 3684 /* |
|
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3685 * Recursively call nfa_regmatch() |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3686 */ |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3687 static int |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3688 recursive_regmatch(state, prog, submatch, m, listids) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3689 nfa_state_T *state; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3690 nfa_regprog_T *prog; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3691 regsubs_T *submatch; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3692 regsubs_T *m; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3693 int **listids; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3694 { |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3695 char_u *save_reginput = reginput; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3696 char_u *save_regline = regline; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3697 int save_reglnum = reglnum; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3698 int save_nfa_match = nfa_match; |
|
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3699 int save_nfa_listid = nfa_listid; |
|
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3700 save_se_T *save_nfa_endp = nfa_endp; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3701 save_se_T endpos; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3702 save_se_T *endposp = NULL; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3703 int result; |
|
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3704 int need_restore = FALSE; |
|
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3705 |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3706 if (state->c == NFA_START_INVISIBLE_BEFORE) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3707 { |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3708 /* The recursive match must end at the current position. */ |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3709 endposp = &endpos; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3710 if (REG_MULTI) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3711 { |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3712 endpos.se_u.pos.col = (int)(reginput - regline); |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3713 endpos.se_u.pos.lnum = reglnum; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3714 } |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3715 else |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3716 endpos.se_u.ptr = reginput; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3717 |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3718 /* Go back the specified number of bytes, or as far as the |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3719 * start of the previous line, to try matching "\@<=" or |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3720 * not matching "\@<!". |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3721 * TODO: This is very inefficient! Would be better to |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3722 * first check for a match with what follows. */ |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3723 if (state->val <= 0) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3724 { |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3725 if (REG_MULTI) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3726 { |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3727 regline = reg_getline(--reglnum); |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3728 if (regline == NULL) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3729 /* can't go before the first line */ |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3730 regline = reg_getline(++reglnum); |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3731 } |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3732 reginput = regline; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3733 } |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3734 else |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3735 { |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3736 if (REG_MULTI && (int)(reginput - regline) < state->val) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3737 { |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3738 /* Not enough bytes in this line, go to end of |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3739 * previous line. */ |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3740 regline = reg_getline(--reglnum); |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3741 if (regline == NULL) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3742 { |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3743 /* can't go before the first line */ |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3744 regline = reg_getline(++reglnum); |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3745 reginput = regline; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3746 } |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3747 else |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3748 reginput = regline + STRLEN(regline); |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3749 } |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3750 if ((int)(reginput - regline) >= state->val) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3751 { |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3752 reginput -= state->val; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3753 #ifdef FEAT_MBYTE |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3754 if (has_mbyte) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3755 reginput -= mb_head_off(regline, reginput); |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3756 #endif |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3757 } |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3758 else |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3759 reginput = regline; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3760 } |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3761 } |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3762 |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3763 #ifdef ENABLE_LOG |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3764 if (log_fd != stderr) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3765 fclose(log_fd); |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3766 log_fd = NULL; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3767 #endif |
|
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3768 /* Have to clear the lastlist field of the NFA nodes, so that |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3769 * nfa_regmatch() and addstate() can run properly after recursion. */ |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3770 if (nfa_ll_index == 1) |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3771 { |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3772 /* Already calling nfa_regmatch() recursively. Save the lastlist[1] |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3773 * values and clear them. */ |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3774 if (*listids == NULL) |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3775 { |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3776 *listids = (int *)lalloc(sizeof(int) * nstate, TRUE); |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3777 if (*listids == NULL) |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3778 { |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3779 EMSG(_("E878: (NFA) Could not allocate memory for branch traversal!")); |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3780 return 0; |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3781 } |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3782 } |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3783 nfa_save_listids(prog, *listids); |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3784 need_restore = TRUE; |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3785 /* any value of nfa_listid will do */ |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3786 } |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3787 else |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3788 { |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3789 /* First recursive nfa_regmatch() call, switch to the second lastlist |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3790 * entry. Make sure nfa_listid is different from a previous recursive |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3791 * call, because some states may still have this ID. */ |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3792 ++nfa_ll_index; |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3793 if (nfa_listid <= nfa_alt_listid) |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3794 nfa_listid = nfa_alt_listid; |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3795 } |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3796 |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3797 /* Call nfa_regmatch() to check if the current concat matches at this |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3798 * position. The concat ends with the node NFA_END_INVISIBLE */ |
|
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3799 nfa_endp = endposp; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3800 result = nfa_regmatch(prog, state->out, submatch, m); |
|
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3801 |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3802 if (need_restore) |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3803 nfa_restore_listids(prog, *listids); |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3804 else |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3805 { |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3806 --nfa_ll_index; |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3807 nfa_alt_listid = nfa_listid; |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3808 } |
|
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3809 |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3810 /* restore position in input text */ |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3811 reginput = save_reginput; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3812 regline = save_regline; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3813 reglnum = save_reglnum; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3814 nfa_match = save_nfa_match; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3815 nfa_endp = save_nfa_endp; |
|
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3816 nfa_listid = save_nfa_listid; |
|
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3817 |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3818 #ifdef ENABLE_LOG |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3819 log_fd = fopen(NFA_REGEXP_RUN_LOG, "a"); |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3820 if (log_fd != NULL) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3821 { |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3822 fprintf(log_fd, "****************************\n"); |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3823 fprintf(log_fd, "FINISHED RUNNING nfa_regmatch() recursively\n"); |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3824 fprintf(log_fd, "MATCH = %s\n", result == TRUE ? "OK" : "FALSE"); |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3825 fprintf(log_fd, "****************************\n"); |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3826 } |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3827 else |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3828 { |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3829 EMSG(_("Could not open temporary log file for writing, displaying on stderr ... ")); |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3830 log_fd = stderr; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3831 } |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3832 #endif |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3833 |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3834 return result; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3835 } |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3836 |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
3837 /* |
| 4444 | 3838 * Main matching routine. |
| 3839 * | |
| 3840 * Run NFA to determine whether it matches reginput. | |
| 3841 * | |
|
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
3842 * When "nfa_endp" is not NULL it is a required end-of-match position. |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
3843 * |
| 4444 | 3844 * Return TRUE if there is a match, FALSE otherwise. |
| 3845 * Note: Caller must ensure that: start != NULL. | |
| 3846 */ | |
| 3847 static int | |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3848 nfa_regmatch(prog, start, submatch, m) |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
3849 nfa_regprog_T *prog; |
| 4444 | 3850 nfa_state_T *start; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3851 regsubs_T *submatch; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3852 regsubs_T *m; |
| 4444 | 3853 { |
| 3854 int result; | |
| 3855 int size = 0; | |
| 3856 int flag = 0; | |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3857 int go_to_nextline = FALSE; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3858 nfa_thread_T *t; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3859 nfa_list_T list[3]; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3860 nfa_list_T *listtbl[2][2]; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3861 nfa_list_T *ll; |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3862 int listidx; |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3863 nfa_list_T *thislist; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3864 nfa_list_T *nextlist; |
|
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3865 nfa_list_T *neglist; |
| 4444 | 3866 int *listids = NULL; |
| 4460 | 3867 #ifdef NFA_REGEXP_DEBUG_LOG |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3868 FILE *debug = fopen(NFA_REGEXP_DEBUG_LOG, "a"); |
| 4444 | 3869 |
| 3870 if (debug == NULL) | |
| 3871 { | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3872 EMSG2(_("(NFA) COULD NOT OPEN %s !"), NFA_REGEXP_DEBUG_LOG); |
| 4444 | 3873 return FALSE; |
| 3874 } | |
| 3875 #endif | |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
3876 nfa_match = FALSE; |
| 4444 | 3877 |
|
4563
e7016af0cbf9
updated for version 7.3.1029
Bram Moolenaar <bram@vim.org>
parents:
4561
diff
changeset
|
3878 /* Allocate memory for the lists of nodes. */ |
|
4539
532c2e850256
updated for version 7.3.1017
Bram Moolenaar <bram@vim.org>
parents:
4537
diff
changeset
|
3879 size = (nstate + 1) * sizeof(nfa_thread_T); |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3880 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
|
3881 list[0].len = nstate + 1; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3882 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
|
3883 list[1].len = nstate + 1; |
|
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
3884 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
|
3885 list[2].len = nstate + 1; |
| 4444 | 3886 if (list[0].t == NULL || list[1].t == NULL || list[2].t == NULL) |
| 3887 goto theend; | |
| 3888 | |
| 3889 #ifdef ENABLE_LOG | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
3890 log_fd = fopen(NFA_REGEXP_RUN_LOG, "a"); |
| 4444 | 3891 if (log_fd != NULL) |
| 3892 { | |
| 3893 fprintf(log_fd, "**********************************\n"); | |
| 3894 nfa_set_code(start->c); | |
| 3895 fprintf(log_fd, " RUNNING nfa_regmatch() starting with state %d, code %s\n", | |
| 3896 abs(start->id), code); | |
| 3897 fprintf(log_fd, "**********************************\n"); | |
| 3898 } | |
| 3899 else | |
| 3900 { | |
| 3901 EMSG(_("Could not open temporary log file for writing, displaying on stderr ... ")); | |
| 3902 log_fd = stderr; | |
| 3903 } | |
| 3904 #endif | |
| 3905 | |
| 3906 thislist = &list[0]; | |
| 3907 thislist->n = 0; | |
| 3908 nextlist = &list[1]; | |
| 3909 nextlist->n = 0; | |
| 3910 neglist = &list[2]; | |
| 3911 neglist->n = 0; | |
| 3912 #ifdef ENABLE_LOG | |
| 3913 fprintf(log_fd, "(---) STARTSTATE\n"); | |
| 3914 #endif | |
|
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3915 thislist->id = nfa_listid + 1; |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3916 addstate(thislist, start, m, 0); |
| 4444 | 3917 |
| 3918 /* There are two cases when the NFA advances: 1. input char matches the | |
| 3919 * NFA node and 2. input char does not match the NFA node, but the next | |
| 3920 * node is NFA_NOT. The following macro calls addstate() according to | |
| 3921 * these rules. It is used A LOT, so use the "listtbl" table for speed */ | |
| 3922 listtbl[0][0] = NULL; | |
| 3923 listtbl[0][1] = neglist; | |
| 3924 listtbl[1][0] = nextlist; | |
| 3925 listtbl[1][1] = NULL; | |
| 3926 #define ADD_POS_NEG_STATE(node) \ | |
| 3927 ll = listtbl[result ? 1 : 0][node->negated]; \ | |
| 3928 if (ll != NULL) \ | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
3929 addstate(ll, node->out , &t->subs, clen); |
| 4444 | 3930 |
| 3931 | |
| 3932 /* | |
| 3933 * Run for each character. | |
| 3934 */ | |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3935 for (;;) |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3936 { |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3937 int curc; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3938 int clen; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3939 |
| 4444 | 3940 #ifdef FEAT_MBYTE |
| 3941 if (has_mbyte) | |
| 3942 { | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3943 curc = (*mb_ptr2char)(reginput); |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3944 clen = (*mb_ptr2len)(reginput); |
| 4444 | 3945 } |
| 3946 else | |
| 3947 #endif | |
| 3948 { | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3949 curc = *reginput; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3950 clen = 1; |
| 4444 | 3951 } |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3952 if (curc == NUL) |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3953 { |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3954 clen = 0; |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3955 go_to_nextline = FALSE; |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
3956 } |
| 4444 | 3957 |
| 3958 /* swap lists */ | |
| 3959 thislist = &list[flag]; | |
| 3960 nextlist = &list[flag ^= 1]; | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
3961 nextlist->n = 0; /* clear nextlist */ |
| 4444 | 3962 listtbl[1][0] = nextlist; |
|
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3963 ++nfa_listid; |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3964 thislist->id = nfa_listid; |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3965 nextlist->id = nfa_listid + 1; |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
3966 neglist->id = nfa_listid + 1; |
| 4444 | 3967 |
| 3968 #ifdef ENABLE_LOG | |
| 3969 fprintf(log_fd, "------------------------------------------\n"); | |
| 3970 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
|
3971 fprintf(log_fd, ">>> Advanced one character ... Current char is %c (code %d) \n", curc, (int)curc); |
| 4444 | 3972 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
|
3973 { |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3974 int i; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3975 |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3976 for (i = 0; i < thislist->n; i++) |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3977 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
|
3978 } |
| 4444 | 3979 fprintf(log_fd, "\n"); |
| 3980 #endif | |
| 3981 | |
| 4460 | 3982 #ifdef NFA_REGEXP_DEBUG_LOG |
| 4444 | 3983 fprintf(debug, "\n-------------------\n"); |
| 3984 #endif | |
| 4480 | 3985 /* |
| 3986 * If the state lists are empty we can stop. | |
| 3987 */ | |
| 3988 if (thislist->n == 0 && neglist->n == 0) | |
| 3989 break; | |
| 4444 | 3990 |
| 3991 /* compute nextlist */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3992 for (listidx = 0; listidx < thislist->n || neglist->n > 0; ++listidx) |
| 4444 | 3993 { |
| 3994 if (neglist->n > 0) | |
| 3995 { | |
| 3996 t = &neglist->t[0]; | |
| 4468 | 3997 neglist->n--; |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
3998 listidx--; |
| 4444 | 3999 } |
| 4000 else | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4001 t = &thislist->t[listidx]; |
| 4444 | 4002 |
| 4460 | 4003 #ifdef NFA_REGEXP_DEBUG_LOG |
| 4444 | 4004 nfa_set_code(t->state->c); |
| 4005 fprintf(debug, "%s, ", code); | |
| 4006 #endif | |
| 4007 #ifdef ENABLE_LOG | |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4008 { |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4009 int col; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4010 |
|
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4011 if (t->subs.norm.in_use <= 0) |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4012 col = -1; |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4013 else if (REG_MULTI) |
|
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4014 col = t->subs.norm.list.multi[0].start.col; |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4015 else |
|
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4016 col = (int)(t->subs.norm.list.line[0].start - regline); |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4017 nfa_set_code(t->state->c); |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4018 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
|
4019 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
|
4020 } |
| 4444 | 4021 #endif |
| 4022 | |
| 4023 /* | |
| 4024 * Handle the possible codes of the current state. | |
| 4025 * The most important is NFA_MATCH. | |
| 4026 */ | |
| 4027 switch (t->state->c) | |
| 4028 { | |
| 4029 case NFA_MATCH: | |
|
4567
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
4030 { |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4031 nfa_match = TRUE; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4032 copy_sub(&submatch->norm, &t->subs.norm); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4033 #ifdef FEAT_SYN_HL |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4034 if (nfa_has_zsubexpr) |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4035 copy_sub(&submatch->synt, &t->subs.synt); |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4036 #endif |
| 4444 | 4037 #ifdef ENABLE_LOG |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4038 log_subsexpr(&t->subs); |
| 4444 | 4039 #endif |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4040 /* 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
|
4041 * 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
|
4042 * 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
|
4043 * correct. */ |
|
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4044 if (nextlist->n == 0 && neglist->n == 0) |
|
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4045 clen = 0; |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4046 goto nextchar; |
|
4567
96c1a7850097
updated for version 7.3.1031
Bram Moolenaar <bram@vim.org>
parents:
4565
diff
changeset
|
4047 } |
| 4444 | 4048 |
| 4049 case NFA_END_INVISIBLE: | |
|
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4050 /* |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4051 * This is only encountered after a NFA_START_INVISIBLE or |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4052 * NFA_START_INVISIBLE_BEFORE node. |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4053 * They surround a zero-width group, used with "\@=", "\&", |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4054 * "\@!", "\@<=" and "\@<!". |
| 4444 | 4055 * If we got here, it means that the current "invisible" group |
| 4056 * finished successfully, so return control to the parent | |
|
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4057 * nfa_regmatch(). For a look-behind match only when it ends |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4058 * in the position in "nfa_endp". |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4059 * Submatches are stored in *m, and used in the parent call. |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4060 */ |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4061 #ifdef ENABLE_LOG |
|
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4062 if (nfa_endp != NULL) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4063 { |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4064 if (REG_MULTI) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4065 fprintf(log_fd, "Current lnum: %d, endp lnum: %d; current col: %d, endp col: %d\n", |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4066 (int)reglnum, |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4067 (int)nfa_endp->se_u.pos.lnum, |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4068 (int)(reginput - regline), |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4069 nfa_endp->se_u.pos.col); |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4070 else |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4071 fprintf(log_fd, "Current col: %d, endp col: %d\n", |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4072 (int)(reginput - regline), |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4073 (int)(nfa_endp->se_u.ptr - reginput)); |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4074 } |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4075 #endif |
|
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4076 /* It's only a match if it ends at "nfa_endp" */ |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4077 if (nfa_endp != NULL && (REG_MULTI |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4078 ? (reglnum != nfa_endp->se_u.pos.lnum |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4079 || (int)(reginput - regline) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4080 != nfa_endp->se_u.pos.col) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4081 : reginput != nfa_endp->se_u.ptr)) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4082 break; |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4083 |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4084 /* do not set submatches for \@! */ |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4085 if (!t->state->negated) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4086 { |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4087 copy_sub(&m->norm, &t->subs.norm); |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4088 #ifdef FEAT_SYN_HL |
|
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4089 if (nfa_has_zsubexpr) |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4090 copy_sub(&m->synt, &t->subs.synt); |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4091 #endif |
| 4444 | 4092 } |
|
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4093 nfa_match = TRUE; |
| 4444 | 4094 break; |
| 4095 | |
| 4096 case NFA_START_INVISIBLE: | |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4097 case NFA_START_INVISIBLE_BEFORE: |
|
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4098 result = recursive_regmatch(t->state, prog, submatch, m, |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4099 &listids); |
|
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4100 |
|
4661
0dce3d812e7a
updated for version 7.3.1078
Bram Moolenaar <bram@vim.org>
parents:
4657
diff
changeset
|
4101 /* 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
|
4102 if (result != t->state->negated) |
| 4444 | 4103 { |
| 4104 /* Copy submatch info from the recursive call */ | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4105 copy_sub_off(&t->subs.norm, &m->norm); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4106 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4107 copy_sub_off(&t->subs.synt, &m->synt); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4108 #endif |
|
4657
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4109 |
|
93b7ed814bec
updated for version 7.3.1076
Bram Moolenaar <bram@vim.org>
parents:
4655
diff
changeset
|
4110 /* t->state->out1 is the corresponding END_INVISIBLE node; |
|
4716
a804309e7327
updated for version 7.3.1105
Bram Moolenaar <bram@vim.org>
parents:
4714
diff
changeset
|
4111 * Add its out to the current list (zero-width match). */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4112 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
|
4113 &listidx); |
| 4444 | 4114 } |
| 4115 break; | |
| 4116 | |
| 4117 case NFA_BOL: | |
| 4118 if (reginput == regline) | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4119 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
| 4444 | 4120 break; |
| 4121 | |
| 4122 case NFA_EOL: | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4123 if (curc == NUL) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4124 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
| 4444 | 4125 break; |
| 4126 | |
| 4127 case NFA_BOW: | |
| 4128 { | |
| 4129 int bow = TRUE; | |
| 4130 | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4131 if (curc == NUL) |
| 4444 | 4132 bow = FALSE; |
| 4133 #ifdef FEAT_MBYTE | |
| 4134 else if (has_mbyte) | |
| 4135 { | |
| 4136 int this_class; | |
| 4137 | |
| 4138 /* Get class of current and previous char (if it exists). */ | |
| 4503 | 4139 this_class = mb_get_class_buf(reginput, reg_buf); |
| 4444 | 4140 if (this_class <= 1) |
| 4141 bow = FALSE; | |
| 4142 else if (reg_prev_class() == this_class) | |
| 4143 bow = FALSE; | |
| 4144 } | |
| 4145 #endif | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4146 else if (!vim_iswordc_buf(curc, reg_buf) |
| 4503 | 4147 || (reginput > regline |
| 4148 && vim_iswordc_buf(reginput[-1], reg_buf))) | |
| 4444 | 4149 bow = FALSE; |
| 4150 if (bow) | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4151 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
| 4444 | 4152 break; |
| 4153 } | |
| 4154 | |
| 4155 case NFA_EOW: | |
| 4156 { | |
| 4157 int eow = TRUE; | |
| 4158 | |
| 4159 if (reginput == regline) | |
| 4160 eow = FALSE; | |
| 4161 #ifdef FEAT_MBYTE | |
| 4162 else if (has_mbyte) | |
| 4163 { | |
| 4164 int this_class, prev_class; | |
| 4165 | |
| 4166 /* Get class of current and previous char (if it exists). */ | |
| 4503 | 4167 this_class = mb_get_class_buf(reginput, reg_buf); |
| 4444 | 4168 prev_class = reg_prev_class(); |
| 4169 if (this_class == prev_class | |
| 4170 || prev_class == 0 || prev_class == 1) | |
| 4171 eow = FALSE; | |
| 4172 } | |
| 4173 #endif | |
| 4503 | 4174 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
|
4175 || (reginput[0] != NUL |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4176 && vim_iswordc_buf(curc, reg_buf))) |
| 4444 | 4177 eow = FALSE; |
| 4178 if (eow) | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4179 addstate_here(thislist, t->state->out, &t->subs, &listidx); |
| 4444 | 4180 break; |
| 4181 } | |
| 4182 | |
|
4671
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4183 case NFA_BOF: |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4184 if (reglnum == 0 && reginput == regline |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4185 && (!REG_MULTI || reg_firstlnum == 1)) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4186 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
|
4187 break; |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4188 |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4189 case NFA_EOF: |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4190 if (reglnum == reg_maxline && curc == NUL) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4191 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
|
4192 break; |
|
b3c59716e700
updated for version 7.3.1083
Bram Moolenaar <bram@vim.org>
parents:
4669
diff
changeset
|
4193 |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4194 #ifdef FEAT_MBYTE |
| 4444 | 4195 case NFA_COMPOSING: |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4196 { |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4197 int mc = curc; |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4198 int len = 0; |
|
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4199 nfa_state_T *end; |
|
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4200 nfa_state_T *sta; |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4201 int cchars[MAX_MCO]; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4202 int ccount = 0; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4203 int j; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4204 |
| 4444 | 4205 sta = t->state->out; |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4206 len = 0; |
|
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4207 if (utf_iscomposing(sta->c)) |
|
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4208 { |
|
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4209 /* Only match composing character(s), ignore base |
|
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4210 * character. Used for ".{composing}" and "{composing}" |
|
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4211 * (no preceding character). */ |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4212 len += mb_char2len(mc); |
|
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4213 } |
|
4551
f0c37f5cf4ea
updated for version 7.3.1023
Bram Moolenaar <bram@vim.org>
parents:
4549
diff
changeset
|
4214 if (ireg_icombine && len == 0) |
| 4444 | 4215 { |
|
4535
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4216 /* If \Z was present, then ignore composing characters. |
|
45f97c349537
updated for version 7.3.1015
Bram Moolenaar <bram@vim.org>
parents:
4533
diff
changeset
|
4217 * 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
|
4218 /* TODO: How about negated? */ |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4219 if (len == 0 && sta->c != curc) |
|
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4220 result = FAIL; |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4221 else |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4222 result = OK; |
|
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4223 while (sta->c != NFA_END_COMPOSING) |
|
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4224 sta = sta->out; |
| 4444 | 4225 } |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4226 |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4227 /* Check base character matches first, unless ignored. */ |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4228 else if (len > 0 || mc == sta->c) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4229 { |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4230 if (len == 0) |
|
4529
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4231 { |
|
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4232 len += mb_char2len(mc); |
|
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4233 sta = sta->out; |
|
432a6b8c7d93
updated for version 7.3.1012
Bram Moolenaar <bram@vim.org>
parents:
4527
diff
changeset
|
4234 } |
| 4444 | 4235 |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4236 /* 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
|
4237 * Get them into cchars[] first. */ |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4238 while (len < clen) |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4239 { |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4240 mc = mb_ptr2char(reginput + len); |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4241 cchars[ccount++] = mc; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4242 len += mb_char2len(mc); |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4243 if (ccount == MAX_MCO) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4244 break; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4245 } |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4246 |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4247 /* 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
|
4248 * 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
|
4249 * composing chars are matched. */ |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4250 result = OK; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4251 while (sta->c != NFA_END_COMPOSING) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4252 { |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4253 for (j = 0; j < ccount; ++j) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4254 if (cchars[j] == sta->c) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4255 break; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4256 if (j == ccount) |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4257 { |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4258 result = FAIL; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4259 break; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4260 } |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4261 sta = sta->out; |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4262 } |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4263 } |
|
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4264 else |
|
4525
36ddcf4cecbc
updated for version 7.3.1010
Bram Moolenaar <bram@vim.org>
parents:
4517
diff
changeset
|
4265 result = FAIL; |
|
4547
fc997f05cbc7
updated for version 7.3.1021
Bram Moolenaar <bram@vim.org>
parents:
4543
diff
changeset
|
4266 |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4267 end = t->state->out1; /* NFA_END_COMPOSING */ |
| 4444 | 4268 ADD_POS_NEG_STATE(end); |
| 4269 break; | |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4270 } |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4271 #endif |
| 4444 | 4272 |
| 4273 case NFA_NEWL: | |
|
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4274 if (curc == NUL && !reg_line_lbr && REG_MULTI |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4275 && reglnum <= reg_maxline) |
| 4444 | 4276 { |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4277 go_to_nextline = TRUE; |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4278 /* 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
|
4279 * at the start of the next line. */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4280 addstate(nextlist, t->state->out, &t->subs, -1); |
| 4444 | 4281 } |
|
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4282 else if (curc == '\n' && reg_line_lbr) |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4283 { |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4284 /* 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
|
4285 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
|
4286 } |
| 4444 | 4287 break; |
| 4288 | |
| 4289 case NFA_CLASS_ALNUM: | |
| 4290 case NFA_CLASS_ALPHA: | |
| 4291 case NFA_CLASS_BLANK: | |
| 4292 case NFA_CLASS_CNTRL: | |
| 4293 case NFA_CLASS_DIGIT: | |
| 4294 case NFA_CLASS_GRAPH: | |
| 4295 case NFA_CLASS_LOWER: | |
| 4296 case NFA_CLASS_PRINT: | |
| 4297 case NFA_CLASS_PUNCT: | |
| 4298 case NFA_CLASS_SPACE: | |
| 4299 case NFA_CLASS_UPPER: | |
| 4300 case NFA_CLASS_XDIGIT: | |
| 4301 case NFA_CLASS_TAB: | |
| 4302 case NFA_CLASS_RETURN: | |
| 4303 case NFA_CLASS_BACKSPACE: | |
| 4304 case NFA_CLASS_ESCAPE: | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4305 result = check_char_class(t->state->c, curc); |
| 4444 | 4306 ADD_POS_NEG_STATE(t->state); |
| 4307 break; | |
| 4308 | |
| 4309 case NFA_END_NEG_RANGE: | |
| 4310 /* This follows a series of negated nodes, like: | |
| 4311 * 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
|
4312 if (curc > 0) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4313 addstate(nextlist, t->state->out, &t->subs, clen); |
| 4444 | 4314 break; |
| 4315 | |
| 4316 case NFA_ANY: | |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4317 /* 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
|
4318 if (curc > 0) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4319 addstate(nextlist, t->state->out, &t->subs, clen); |
| 4444 | 4320 break; |
| 4321 | |
| 4322 /* | |
| 4323 * Character classes like \a for alpha, \d for digit etc. | |
| 4324 */ | |
| 4325 case NFA_IDENT: /* \i */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4326 result = vim_isIDc(curc); |
| 4444 | 4327 ADD_POS_NEG_STATE(t->state); |
| 4328 break; | |
| 4329 | |
| 4330 case NFA_SIDENT: /* \I */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4331 result = !VIM_ISDIGIT(curc) && vim_isIDc(curc); |
| 4444 | 4332 ADD_POS_NEG_STATE(t->state); |
| 4333 break; | |
| 4334 | |
| 4335 case NFA_KWORD: /* \k */ | |
| 4503 | 4336 result = vim_iswordp_buf(reginput, reg_buf); |
| 4444 | 4337 ADD_POS_NEG_STATE(t->state); |
| 4338 break; | |
| 4339 | |
| 4340 case NFA_SKWORD: /* \K */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4341 result = !VIM_ISDIGIT(curc) |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4342 && vim_iswordp_buf(reginput, reg_buf); |
| 4444 | 4343 ADD_POS_NEG_STATE(t->state); |
| 4344 break; | |
| 4345 | |
| 4346 case NFA_FNAME: /* \f */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4347 result = vim_isfilec(curc); |
| 4444 | 4348 ADD_POS_NEG_STATE(t->state); |
| 4349 break; | |
| 4350 | |
| 4351 case NFA_SFNAME: /* \F */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4352 result = !VIM_ISDIGIT(curc) && vim_isfilec(curc); |
| 4444 | 4353 ADD_POS_NEG_STATE(t->state); |
| 4354 break; | |
| 4355 | |
| 4356 case NFA_PRINT: /* \p */ | |
| 4470 | 4357 result = ptr2cells(reginput) == 1; |
| 4444 | 4358 ADD_POS_NEG_STATE(t->state); |
| 4359 break; | |
| 4360 | |
| 4361 case NFA_SPRINT: /* \P */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4362 result = !VIM_ISDIGIT(curc) && ptr2cells(reginput) == 1; |
| 4444 | 4363 ADD_POS_NEG_STATE(t->state); |
| 4364 break; | |
| 4365 | |
| 4366 case NFA_WHITE: /* \s */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4367 result = vim_iswhite(curc); |
| 4444 | 4368 ADD_POS_NEG_STATE(t->state); |
| 4369 break; | |
| 4370 | |
| 4371 case NFA_NWHITE: /* \S */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4372 result = curc != NUL && !vim_iswhite(curc); |
| 4444 | 4373 ADD_POS_NEG_STATE(t->state); |
| 4374 break; | |
| 4375 | |
| 4376 case NFA_DIGIT: /* \d */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4377 result = ri_digit(curc); |
| 4444 | 4378 ADD_POS_NEG_STATE(t->state); |
| 4379 break; | |
| 4380 | |
| 4381 case NFA_NDIGIT: /* \D */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4382 result = curc != NUL && !ri_digit(curc); |
| 4444 | 4383 ADD_POS_NEG_STATE(t->state); |
| 4384 break; | |
| 4385 | |
| 4386 case NFA_HEX: /* \x */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4387 result = ri_hex(curc); |
| 4444 | 4388 ADD_POS_NEG_STATE(t->state); |
| 4389 break; | |
| 4390 | |
| 4391 case NFA_NHEX: /* \X */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4392 result = curc != NUL && !ri_hex(curc); |
| 4444 | 4393 ADD_POS_NEG_STATE(t->state); |
| 4394 break; | |
| 4395 | |
| 4396 case NFA_OCTAL: /* \o */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4397 result = ri_octal(curc); |
| 4444 | 4398 ADD_POS_NEG_STATE(t->state); |
| 4399 break; | |
| 4400 | |
| 4401 case NFA_NOCTAL: /* \O */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4402 result = curc != NUL && !ri_octal(curc); |
| 4444 | 4403 ADD_POS_NEG_STATE(t->state); |
| 4404 break; | |
| 4405 | |
| 4406 case NFA_WORD: /* \w */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4407 result = ri_word(curc); |
| 4444 | 4408 ADD_POS_NEG_STATE(t->state); |
| 4409 break; | |
| 4410 | |
| 4411 case NFA_NWORD: /* \W */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4412 result = curc != NUL && !ri_word(curc); |
| 4444 | 4413 ADD_POS_NEG_STATE(t->state); |
| 4414 break; | |
| 4415 | |
| 4416 case NFA_HEAD: /* \h */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4417 result = ri_head(curc); |
| 4444 | 4418 ADD_POS_NEG_STATE(t->state); |
| 4419 break; | |
| 4420 | |
| 4421 case NFA_NHEAD: /* \H */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4422 result = curc != NUL && !ri_head(curc); |
| 4444 | 4423 ADD_POS_NEG_STATE(t->state); |
| 4424 break; | |
| 4425 | |
| 4426 case NFA_ALPHA: /* \a */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4427 result = ri_alpha(curc); |
| 4444 | 4428 ADD_POS_NEG_STATE(t->state); |
| 4429 break; | |
| 4430 | |
| 4431 case NFA_NALPHA: /* \A */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4432 result = curc != NUL && !ri_alpha(curc); |
| 4444 | 4433 ADD_POS_NEG_STATE(t->state); |
| 4434 break; | |
| 4435 | |
| 4436 case NFA_LOWER: /* \l */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4437 result = ri_lower(curc); |
| 4444 | 4438 ADD_POS_NEG_STATE(t->state); |
| 4439 break; | |
| 4440 | |
| 4441 case NFA_NLOWER: /* \L */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4442 result = curc != NUL && !ri_lower(curc); |
| 4444 | 4443 ADD_POS_NEG_STATE(t->state); |
| 4444 break; | |
| 4445 | |
| 4446 case NFA_UPPER: /* \u */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4447 result = ri_upper(curc); |
| 4444 | 4448 ADD_POS_NEG_STATE(t->state); |
| 4449 break; | |
| 4450 | |
| 4451 case NFA_NUPPER: /* \U */ | |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4452 result = curc != NUL && !ri_upper(curc); |
| 4444 | 4453 ADD_POS_NEG_STATE(t->state); |
| 4454 break; | |
| 4455 | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4456 case NFA_BACKREF1: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4457 case NFA_BACKREF2: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4458 case NFA_BACKREF3: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4459 case NFA_BACKREF4: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4460 case NFA_BACKREF5: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4461 case NFA_BACKREF6: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4462 case NFA_BACKREF7: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4463 case NFA_BACKREF8: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4464 case NFA_BACKREF9: |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4465 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4466 case NFA_ZREF1: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4467 case NFA_ZREF2: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4468 case NFA_ZREF3: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4469 case NFA_ZREF4: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4470 case NFA_ZREF5: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4471 case NFA_ZREF6: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4472 case NFA_ZREF7: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4473 case NFA_ZREF8: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4474 case NFA_ZREF9: |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4475 #endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4476 /* \1 .. \9 \z1 .. \z9 */ |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4477 { |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4478 int subidx; |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4479 int bytelen; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4480 |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4481 if (t->state->c <= NFA_BACKREF9) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4482 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4483 subidx = t->state->c - NFA_BACKREF1 + 1; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4484 result = match_backref(&t->subs.norm, subidx, &bytelen); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4485 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4486 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4487 else |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4488 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4489 subidx = t->state->c - NFA_ZREF1 + 1; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4490 result = match_zref(subidx, &bytelen); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4491 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4492 #endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4493 |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4494 if (result) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4495 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4496 if (bytelen == 0) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4497 { |
|
4692
08fbb1ce1bc5
updated for version 7.3.1093
Bram Moolenaar <bram@vim.org>
parents:
4690
diff
changeset
|
4498 /* empty match always works, output of NFA_SKIP to be |
|
08fbb1ce1bc5
updated for version 7.3.1093
Bram Moolenaar <bram@vim.org>
parents:
4690
diff
changeset
|
4499 * used next */ |
|
08fbb1ce1bc5
updated for version 7.3.1093
Bram Moolenaar <bram@vim.org>
parents:
4690
diff
changeset
|
4500 addstate_here(thislist, t->state->out->out, &t->subs, |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4501 &listidx); |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4502 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4503 else if (bytelen <= clen) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4504 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4505 /* match current character, jump ahead to out of |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4506 * NFA_SKIP */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4507 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
|
4508 #ifdef ENABLE_LOG |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4509 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
|
4510 #endif |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4511 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4512 else |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4513 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4514 /* skip ofer the matched characters, set character |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4515 * count in NFA_SKIP */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4516 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
|
4517 nextlist->t[nextlist->n - 1].count = bytelen - clen; |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4518 #ifdef ENABLE_LOG |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4519 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
|
4520 #endif |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4521 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4522 |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4523 } |
| 4482 | 4524 break; |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4525 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4526 case NFA_SKIP: |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4527 /* charater of previous matching \1 .. \9 */ |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4528 if (t->count - clen <= 0) |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4529 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4530 /* end of match, go to what follows */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4531 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
|
4532 #ifdef ENABLE_LOG |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4533 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
|
4534 #endif |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4535 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4536 else |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4537 { |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4538 /* add state again with decremented count */ |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4539 addstate(nextlist, t->state, &t->subs, 0); |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4540 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
|
4541 #ifdef ENABLE_LOG |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4542 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
|
4543 #endif |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4544 } |
|
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4545 break; |
| 4482 | 4546 |
| 4547 case NFA_SKIP_CHAR: | |
| 4548 case NFA_ZSTART: | |
|
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
4549 case NFA_ZEND: |
| 4482 | 4550 /* TODO: should not happen? */ |
| 4551 break; | |
| 4552 | |
|
4583
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4553 case NFA_LNUM: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4554 case NFA_LNUM_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4555 case NFA_LNUM_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4556 result = (REG_MULTI && |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4557 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
|
4558 (long_u)(reglnum + reg_firstlnum))); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4559 if (result) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4560 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
|
4561 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4562 |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4563 case NFA_COL: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4564 case NFA_COL_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4565 case NFA_COL_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4566 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
|
4567 (long_u)(reginput - regline) + 1); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4568 if (result) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4569 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
|
4570 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4571 |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4572 case NFA_VCOL: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4573 case NFA_VCOL_GT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4574 case NFA_VCOL_LT: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4575 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
|
4576 (long_u)win_linetabsize( |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4577 reg_win == NULL ? curwin : reg_win, |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4578 regline, (colnr_T)(reginput - regline)) + 1); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4579 if (result) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4580 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
|
4581 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4582 |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4583 case NFA_CURSOR: |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4584 result = (reg_win != NULL |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4585 && (reglnum + reg_firstlnum == reg_win->w_cursor.lnum) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4586 && ((colnr_T)(reginput - regline) |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4587 == reg_win->w_cursor.col)); |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4588 if (result) |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4589 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
|
4590 break; |
|
321cfbef9431
updated for version 7.3.1039
Bram Moolenaar <bram@vim.org>
parents:
4579
diff
changeset
|
4591 |
| 4444 | 4592 default: /* regular character */ |
|
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4593 { |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4594 int c = t->state->c; |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4595 |
| 4482 | 4596 /* TODO: put this in #ifdef later */ |
|
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4597 if (c < -256) |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4598 EMSGN("INTERNAL: Negative state char: %ld", c); |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4599 if (is_Magic(c)) |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4600 c = un_Magic(c); |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4601 result = (c == curc); |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4602 |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4603 if (!result && ireg_ic) |
|
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4604 result = MB_TOLOWER(c) == MB_TOLOWER(curc); |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4605 #ifdef FEAT_MBYTE |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4606 /* 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
|
4607 * 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
|
4608 * character uses NFA_COMPOSING above. */ |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4609 if (result && enc_utf8 && !ireg_icombine |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4610 && clen != utf_char2len(curc)) |
|
4527
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4611 result = FALSE; |
|
55bcaa1d2749
updated for version 7.3.1011
Bram Moolenaar <bram@vim.org>
parents:
4525
diff
changeset
|
4612 #endif |
| 4444 | 4613 ADD_POS_NEG_STATE(t->state); |
| 4614 break; | |
|
4559
04086e297563
updated for version 7.3.1027
Bram Moolenaar <bram@vim.org>
parents:
4557
diff
changeset
|
4615 } |
| 4444 | 4616 } |
| 4617 | |
| 4618 } /* for (thislist = thislist; thislist->state; thislist++) */ | |
| 4619 | |
|
4557
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4620 /* 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
|
4621 * start state to the list of states. |
|
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4622 * 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
|
4623 * matters! |
|
888c12c899e5
updated for version 7.3.1026
Bram Moolenaar <bram@vim.org>
parents:
4555
diff
changeset
|
4624 * 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
|
4625 * because recursive calls should only start in the first position. |
|
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4626 * Unless "nfa_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
|
4627 * 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
|
4628 if (nfa_match == FALSE |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4629 && ((start->c == NFA_MOPEN |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4630 && reglnum == 0 |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4631 && clen != 0 |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4632 && (ireg_maxcol == 0 |
|
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4633 || (colnr_T)(reginput - regline) < ireg_maxcol)) |
|
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4634 || (nfa_endp != NULL |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4635 && (REG_MULTI |
|
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4636 ? (reglnum < nfa_endp->se_u.pos.lnum |
|
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4637 || (reglnum == nfa_endp->se_u.pos.lnum |
|
4682
2f51ee8825db
updated for version 7.3.1088
Bram Moolenaar <bram@vim.org>
parents:
4679
diff
changeset
|
4638 && (int)(reginput - regline) |
|
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4639 < nfa_endp->se_u.pos.col)) |
|
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4640 : reginput < nfa_endp->se_u.ptr)))) |
| 4444 | 4641 { |
| 4642 #ifdef ENABLE_LOG | |
| 4643 fprintf(log_fd, "(---) STARTSTATE\n"); | |
| 4644 #endif | |
|
4571
b2a8e3a66f8c
updated for version 7.3.1033
Bram Moolenaar <bram@vim.org>
parents:
4569
diff
changeset
|
4645 addstate(nextlist, start, m, clen); |
| 4444 | 4646 } |
| 4647 | |
| 4648 #ifdef ENABLE_LOG | |
| 4649 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
|
4650 { |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4651 int i; |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4652 |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4653 for (i = 0; i < thislist->n; i++) |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4654 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
|
4655 } |
| 4444 | 4656 fprintf(log_fd, "\n"); |
| 4657 #endif | |
| 4658 | |
| 4659 nextchar: | |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4660 /* 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
|
4661 * finish. */ |
|
4549
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4662 if (clen != 0) |
|
849180347ac3
updated for version 7.3.1022
Bram Moolenaar <bram@vim.org>
parents:
4547
diff
changeset
|
4663 reginput += clen; |
|
4694
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4664 else if (go_to_nextline || (nfa_endp != NULL && REG_MULTI |
|
efc4fb311d5d
updated for version 7.3.1094
Bram Moolenaar <bram@vim.org>
parents:
4692
diff
changeset
|
4665 && reglnum < nfa_endp->se_u.pos.lnum)) |
|
4515
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4666 reg_nextline(); |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4667 else |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4668 break; |
|
90e9917d4114
updated for version 7.3.1005
Bram Moolenaar <bram@vim.org>
parents:
4507
diff
changeset
|
4669 } |
| 4444 | 4670 |
| 4671 #ifdef ENABLE_LOG | |
| 4672 if (log_fd != stderr) | |
| 4673 fclose(log_fd); | |
| 4674 log_fd = NULL; | |
| 4675 #endif | |
| 4676 | |
| 4677 theend: | |
| 4678 /* Free memory */ | |
| 4679 vim_free(list[0].t); | |
| 4680 vim_free(list[1].t); | |
| 4681 vim_free(list[2].t); | |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4682 vim_free(listids); |
| 4444 | 4683 #undef ADD_POS_NEG_STATE |
| 4460 | 4684 #ifdef NFA_REGEXP_DEBUG_LOG |
| 4444 | 4685 fclose(debug); |
| 4686 #endif | |
| 4687 | |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4688 return nfa_match; |
| 4444 | 4689 } |
| 4690 | |
| 4691 /* | |
| 4692 * Try match of "prog" with at regline["col"]. | |
| 4693 * Returns 0 for failure, number of lines contained in the match otherwise. | |
| 4694 */ | |
| 4695 static long | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4696 nfa_regtry(prog, col) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4697 nfa_regprog_T *prog; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4698 colnr_T col; |
| 4444 | 4699 { |
| 4700 int i; | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4701 regsubs_T subs, m; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4702 nfa_state_T *start = prog->start; |
| 4444 | 4703 #ifdef ENABLE_LOG |
| 4704 FILE *f; | |
| 4705 #endif | |
| 4706 | |
| 4707 reginput = regline + col; | |
| 4708 need_clear_subexpr = TRUE; | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4709 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4710 /* Clear the external match subpointers if necessary. */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4711 if (prog->reghasz == REX_SET) |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4712 { |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4713 nfa_has_zsubexpr = TRUE; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4714 need_clear_zsubexpr = TRUE; |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4715 } |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4716 else |
|
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4717 nfa_has_zsubexpr = FALSE; |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4718 #endif |
| 4444 | 4719 |
| 4720 #ifdef ENABLE_LOG | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4721 f = fopen(NFA_REGEXP_RUN_LOG, "a"); |
| 4444 | 4722 if (f != NULL) |
| 4723 { | |
| 4724 fprintf(f, "\n\n\n\n\n\n\t\t=======================================================\n"); | |
| 4725 fprintf(f, " =======================================================\n"); | |
| 4726 #ifdef DEBUG | |
| 4727 fprintf(f, "\tRegexp is \"%s\"\n", nfa_regengine.expr); | |
| 4728 #endif | |
| 4729 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
|
4730 fprintf(f, " =======================================================\n\n"); |
|
4533
6a2005efa02b
updated for version 7.3.1014
Bram Moolenaar <bram@vim.org>
parents:
4531
diff
changeset
|
4731 nfa_print_state(f, start); |
| 4444 | 4732 fprintf(f, "\n\n"); |
| 4733 fclose(f); | |
| 4734 } | |
| 4735 else | |
| 4736 EMSG(_("Could not open temporary log file for writing ")); | |
| 4737 #endif | |
| 4738 | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4739 clear_sub(&subs.norm); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4740 clear_sub(&m.norm); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4741 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4742 clear_sub(&subs.synt); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4743 clear_sub(&m.synt); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4744 #endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4745 |
|
4712
832bf8136d86
updated for version 7.3.1103
Bram Moolenaar <bram@vim.org>
parents:
4696
diff
changeset
|
4746 if (nfa_regmatch(prog, start, &subs, &m) == FALSE) |
| 4444 | 4747 return 0; |
| 4748 | |
| 4749 cleanup_subexpr(); | |
| 4750 if (REG_MULTI) | |
| 4751 { | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4752 for (i = 0; i < subs.norm.in_use; i++) |
| 4444 | 4753 { |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4754 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
|
4755 reg_endpos[i] = subs.norm.list.multi[i].end; |
| 4444 | 4756 } |
| 4757 | |
| 4758 if (reg_startpos[0].lnum < 0) | |
| 4759 { | |
| 4760 reg_startpos[0].lnum = 0; | |
| 4761 reg_startpos[0].col = col; | |
| 4762 } | |
| 4763 if (reg_endpos[0].lnum < 0) | |
| 4764 { | |
|
4569
f262fb02889d
updated for version 7.3.1032
Bram Moolenaar <bram@vim.org>
parents:
4567
diff
changeset
|
4765 /* pattern has a \ze but it didn't match, use current end */ |
| 4444 | 4766 reg_endpos[0].lnum = reglnum; |
| 4767 reg_endpos[0].col = (int)(reginput - regline); | |
| 4768 } | |
| 4769 else | |
| 4770 /* Use line number of "\ze". */ | |
| 4771 reglnum = reg_endpos[0].lnum; | |
| 4772 } | |
| 4773 else | |
| 4774 { | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4775 for (i = 0; i < subs.norm.in_use; i++) |
| 4444 | 4776 { |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4777 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
|
4778 reg_endp[i] = subs.norm.list.line[i].end; |
| 4444 | 4779 } |
| 4780 | |
| 4781 if (reg_startp[0] == NULL) | |
| 4782 reg_startp[0] = regline + col; | |
| 4783 if (reg_endp[0] == NULL) | |
| 4784 reg_endp[0] = reginput; | |
| 4785 } | |
| 4786 | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4787 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4788 /* 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
|
4789 unref_extmatch(re_extmatch_out); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4790 re_extmatch_out = NULL; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4791 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4792 if (prog->reghasz == REX_SET) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4793 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4794 cleanup_zsubexpr(); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4795 re_extmatch_out = make_extmatch(); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4796 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
|
4797 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4798 if (REG_MULTI) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4799 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4800 struct multipos *mpos = &subs.synt.list.multi[i]; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4801 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4802 /* Only accept single line matches. */ |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4803 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
|
4804 re_extmatch_out->matches[i] = |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4805 vim_strnsave(reg_getline(mpos->start.lnum) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4806 + mpos->start.col, |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4807 mpos->end.col - mpos->start.col); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4808 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4809 else |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4810 { |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4811 struct linepos *lpos = &subs.synt.list.line[i]; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4812 |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4813 if (lpos->start != NULL && lpos->end != NULL) |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4814 re_extmatch_out->matches[i] = |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4815 vim_strnsave(lpos->start, |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4816 (int)(lpos->end - lpos->start)); |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4817 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4818 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4819 } |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4820 #endif |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4821 |
| 4444 | 4822 return 1 + reglnum; |
| 4823 } | |
| 4824 | |
| 4825 /* | |
| 4826 * Match a regexp against a string ("line" points to the string) or multiple | |
| 4827 * lines ("line" is NULL, use reg_getline()). | |
| 4828 * | |
| 4829 * Returns 0 for failure, number of lines contained in the match otherwise. | |
| 4830 */ | |
| 4831 static long | |
| 4832 nfa_regexec_both(line, col) | |
| 4833 char_u *line; | |
| 4834 colnr_T col; /* column to start looking for match */ | |
| 4835 { | |
| 4836 nfa_regprog_T *prog; | |
| 4837 long retval = 0L; | |
| 4838 int i; | |
| 4839 | |
| 4840 if (REG_MULTI) | |
| 4841 { | |
| 4842 prog = (nfa_regprog_T *)reg_mmatch->regprog; | |
| 4843 line = reg_getline((linenr_T)0); /* relative to the cursor */ | |
| 4844 reg_startpos = reg_mmatch->startpos; | |
| 4845 reg_endpos = reg_mmatch->endpos; | |
| 4846 } | |
| 4847 else | |
| 4848 { | |
| 4849 prog = (nfa_regprog_T *)reg_match->regprog; | |
| 4850 reg_startp = reg_match->startp; | |
| 4851 reg_endp = reg_match->endp; | |
| 4852 } | |
| 4853 | |
| 4854 /* Be paranoid... */ | |
| 4855 if (prog == NULL || line == NULL) | |
| 4856 { | |
| 4857 EMSG(_(e_null)); | |
| 4858 goto theend; | |
| 4859 } | |
| 4860 | |
| 4861 /* If the start column is past the maximum column: no need to try. */ | |
| 4862 if (ireg_maxcol > 0 && col >= ireg_maxcol) | |
| 4863 goto theend; | |
| 4864 | |
| 4865 /* If pattern contains "\c" or "\C": overrule value of ireg_ic */ | |
| 4866 if (prog->regflags & RF_ICASE) | |
| 4867 ireg_ic = TRUE; | |
| 4868 else if (prog->regflags & RF_NOICASE) | |
| 4869 ireg_ic = FALSE; | |
| 4870 | |
| 4871 #ifdef FEAT_MBYTE | |
| 4872 /* If pattern contains "\Z" overrule value of ireg_icombine */ | |
| 4873 if (prog->regflags & RF_ICOMBINE) | |
| 4874 ireg_icombine = TRUE; | |
| 4875 #endif | |
| 4876 | |
| 4877 regline = line; | |
| 4878 reglnum = 0; /* relative to line */ | |
| 4879 | |
|
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4880 nfa_has_zend = prog->has_zend; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
4881 nfa_has_backref = prog->has_backref; |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4882 nfa_nsubexpr = prog->nsubexp; |
|
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
4883 nfa_listid = 1; |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
4884 nfa_alt_listid = 2; |
|
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4885 #ifdef DEBUG |
|
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4886 nfa_regengine.expr = prog->pattern; |
|
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4887 #endif |
|
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4888 |
| 4444 | 4889 nstate = prog->nstate; |
| 4890 for (i = 0; i < nstate; ++i) | |
| 4891 { | |
| 4892 prog->state[i].id = i; | |
|
4718
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
4893 prog->state[i].lastlist[0] = 0; |
|
ec72bb4a0fc2
updated for version 7.3.1106
Bram Moolenaar <bram@vim.org>
parents:
4716
diff
changeset
|
4894 prog->state[i].lastlist[1] = 0; |
| 4444 | 4895 } |
| 4896 | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4897 retval = nfa_regtry(prog, col); |
| 4444 | 4898 |
|
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4899 #ifdef DEBUG |
|
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4900 nfa_regengine.expr = NULL; |
|
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4901 #endif |
|
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4902 |
| 4444 | 4903 theend: |
| 4904 return retval; | |
| 4905 } | |
| 4906 | |
| 4907 /* | |
| 4908 * Compile a regular expression into internal code for the NFA matcher. | |
| 4909 * Returns the program in allocated space. Returns NULL for an error. | |
| 4910 */ | |
| 4911 static regprog_T * | |
| 4912 nfa_regcomp(expr, re_flags) | |
| 4913 char_u *expr; | |
| 4914 int re_flags; | |
| 4915 { | |
|
4541
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4916 nfa_regprog_T *prog = NULL; |
| 4458 | 4917 size_t prog_size; |
| 4444 | 4918 int *postfix; |
| 4919 | |
| 4920 if (expr == NULL) | |
| 4921 return NULL; | |
| 4922 | |
| 4923 #ifdef DEBUG | |
| 4924 nfa_regengine.expr = expr; | |
| 4925 #endif | |
| 4926 | |
| 4927 init_class_tab(); | |
| 4928 | |
| 4929 if (nfa_regcomp_start(expr, re_flags) == FAIL) | |
| 4930 return NULL; | |
| 4931 | |
| 4932 /* 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
|
4933 * (and count its size). */ |
| 4444 | 4934 postfix = re2post(); |
| 4935 if (postfix == NULL) | |
|
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4936 { |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4937 /* TODO: only give this error for debugging? */ |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4938 if (post_ptr >= post_end) |
|
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4939 EMSGN("Internal error: estimated max number of states insufficient: %ld", post_end - post_start); |
| 4444 | 4940 goto fail; /* Cascaded (syntax?) error */ |
|
4555
b2946c06d1b6
updated for version 7.3.1025
Bram Moolenaar <bram@vim.org>
parents:
4553
diff
changeset
|
4941 } |
| 4444 | 4942 |
| 4943 /* | |
| 4944 * In order to build the NFA, we parse the input regexp twice: | |
| 4945 * 1. first pass to count size (so we can allocate space) | |
| 4946 * 2. second to emit code | |
| 4947 */ | |
| 4948 #ifdef ENABLE_LOG | |
| 4949 { | |
|
4531
1be43c095aff
updated for version 7.3.1013
Bram Moolenaar <bram@vim.org>
parents:
4529
diff
changeset
|
4950 FILE *f = fopen(NFA_REGEXP_RUN_LOG, "a"); |
| 4444 | 4951 |
| 4952 if (f != NULL) | |
| 4953 { | |
| 4954 fprintf(f, "\n*****************************\n\n\n\n\tCompiling regexp \"%s\" ... hold on !\n", expr); | |
| 4955 fclose(f); | |
| 4956 } | |
| 4957 } | |
| 4958 #endif | |
| 4959 | |
| 4960 /* | |
| 4961 * PASS 1 | |
| 4962 * Count number of NFA states in "nstate". Do not build the NFA. | |
| 4963 */ | |
| 4964 post2nfa(postfix, post_ptr, TRUE); | |
|
4541
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4965 |
|
80170d61a85c
updated for version 7.3.1018
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parents:
4539
diff
changeset
|
4966 /* Space for compiled regexp */ |
|
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4967 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
|
4968 prog = (nfa_regprog_T *)lalloc(prog_size, TRUE); |
|
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4969 if (prog == NULL) |
|
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4970 goto fail; |
|
80170d61a85c
updated for version 7.3.1018
Bram Moolenaar <bram@vim.org>
parents:
4539
diff
changeset
|
4971 vim_memset(prog, 0, prog_size); |
| 4444 | 4972 state_ptr = prog->state; |
| 4973 | |
| 4974 /* | |
| 4975 * PASS 2 | |
| 4976 * Build the NFA | |
| 4977 */ | |
| 4978 prog->start = post2nfa(postfix, post_ptr, FALSE); | |
| 4979 if (prog->start == NULL) | |
| 4980 goto fail; | |
| 4981 | |
| 4982 prog->regflags = regflags; | |
| 4983 prog->engine = &nfa_regengine; | |
| 4984 prog->nstate = nstate; | |
|
4553
7b835b2969af
updated for version 7.3.1024
Bram Moolenaar <bram@vim.org>
parents:
4551
diff
changeset
|
4985 prog->has_zend = nfa_has_zend; |
|
4647
857f6c53f117
updated for version 7.3.1071
Bram Moolenaar <bram@vim.org>
parents:
4615
diff
changeset
|
4986 prog->has_backref = nfa_has_backref; |
|
4561
4d81fdda8f35
updated for version 7.3.1028
Bram Moolenaar <bram@vim.org>
parents:
4559
diff
changeset
|
4987 prog->nsubexp = regnpar; |
| 4444 | 4988 #ifdef ENABLE_LOG |
| 4989 nfa_postfix_dump(expr, OK); | |
| 4990 nfa_dump(prog); | |
| 4991 #endif | |
|
4686
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4992 #ifdef FEAT_SYN_HL |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
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4682
diff
changeset
|
4993 /* 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
|
4994 prog->reghasz = re_has_z; |
|
8db697ae406a
updated for version 7.3.1090
Bram Moolenaar <bram@vim.org>
parents:
4682
diff
changeset
|
4995 #endif |
|
4690
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4996 #ifdef DEBUG |
|
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4997 prog->pattern = vim_strsave(expr); /* memory will leak */ |
|
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
parents:
4688
diff
changeset
|
4998 nfa_regengine.expr = NULL; |
|
9d97a0c045ef
updated for version 7.3.1092
Bram Moolenaar <bram@vim.org>
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4688
diff
changeset
|
4999 #endif |
| 4444 | 5000 |
| 5001 out: | |
| 5002 vim_free(post_start); | |
| 5003 post_start = post_ptr = post_end = NULL; | |
| 5004 state_ptr = NULL; | |
| 5005 return (regprog_T *)prog; | |
| 5006 | |
| 5007 fail: | |
| 5008 vim_free(prog); | |
| 5009 prog = NULL; | |
| 5010 #ifdef ENABLE_LOG | |
| 5011 nfa_postfix_dump(expr, FAIL); | |
| 5012 #endif | |
| 5013 #ifdef DEBUG | |
| 5014 nfa_regengine.expr = NULL; | |
| 5015 #endif | |
| 5016 goto out; | |
| 5017 } | |
| 5018 | |
| 5019 | |
| 5020 /* | |
| 5021 * Match a regexp against a string. | |
| 5022 * "rmp->regprog" is a compiled regexp as returned by nfa_regcomp(). | |
| 5023 * Uses curbuf for line count and 'iskeyword'. | |
| 5024 * | |
| 5025 * Return TRUE if there is a match, FALSE if not. | |
| 5026 */ | |
| 5027 static int | |
| 5028 nfa_regexec(rmp, line, col) | |
| 5029 regmatch_T *rmp; | |
| 5030 char_u *line; /* string to match against */ | |
| 5031 colnr_T col; /* column to start looking for match */ | |
| 5032 { | |
| 5033 reg_match = rmp; | |
| 5034 reg_mmatch = NULL; | |
| 5035 reg_maxline = 0; | |
| 5036 reg_line_lbr = FALSE; | |
| 5037 reg_buf = curbuf; | |
| 5038 reg_win = NULL; | |
| 5039 ireg_ic = rmp->rm_ic; | |
| 5040 #ifdef FEAT_MBYTE | |
| 5041 ireg_icombine = FALSE; | |
| 5042 #endif | |
| 5043 ireg_maxcol = 0; | |
| 5044 return (nfa_regexec_both(line, col) != 0); | |
| 5045 } | |
| 5046 | |
| 5047 #if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) \ | |
| 5048 || defined(FIND_REPLACE_DIALOG) || defined(PROTO) | |
| 5049 | |
| 5050 static int nfa_regexec_nl __ARGS((regmatch_T *rmp, char_u *line, colnr_T col)); | |
| 5051 | |
| 5052 /* | |
| 5053 * Like nfa_regexec(), but consider a "\n" in "line" to be a line break. | |
| 5054 */ | |
| 5055 static int | |
| 5056 nfa_regexec_nl(rmp, line, col) | |
| 5057 regmatch_T *rmp; | |
| 5058 char_u *line; /* string to match against */ | |
| 5059 colnr_T col; /* column to start looking for match */ | |
| 5060 { | |
| 5061 reg_match = rmp; | |
| 5062 reg_mmatch = NULL; | |
| 5063 reg_maxline = 0; | |
| 5064 reg_line_lbr = TRUE; | |
| 5065 reg_buf = curbuf; | |
| 5066 reg_win = NULL; | |
| 5067 ireg_ic = rmp->rm_ic; | |
| 5068 #ifdef FEAT_MBYTE | |
| 5069 ireg_icombine = FALSE; | |
| 5070 #endif | |
| 5071 ireg_maxcol = 0; | |
| 5072 return (nfa_regexec_both(line, col) != 0); | |
| 5073 } | |
| 5074 #endif | |
| 5075 | |
| 5076 | |
| 5077 /* | |
| 5078 * Match a regexp against multiple lines. | |
| 5079 * "rmp->regprog" is a compiled regexp as returned by vim_regcomp(). | |
| 5080 * Uses curbuf for line count and 'iskeyword'. | |
| 5081 * | |
| 5082 * Return zero if there is no match. Return number of lines contained in the | |
| 5083 * match otherwise. | |
| 5084 * | |
| 5085 * Note: the body is the same as bt_regexec() except for nfa_regexec_both() | |
| 5086 * | |
| 5087 * ! Also NOTE : match may actually be in another line. e.g.: | |
| 5088 * when r.e. is \nc, cursor is at 'a' and the text buffer looks like | |
| 5089 * | |
| 5090 * +-------------------------+ | |
| 5091 * |a | | |
| 5092 * |b | | |
| 5093 * |c | | |
| 5094 * | | | |
| 5095 * +-------------------------+ | |
| 5096 * | |
| 5097 * then nfa_regexec_multi() returns 3. while the original | |
| 5098 * vim_regexec_multi() returns 0 and a second call at line 2 will return 2. | |
| 5099 * | |
| 5100 * FIXME if this behavior is not compatible. | |
| 5101 */ | |
| 5102 static long | |
| 5103 nfa_regexec_multi(rmp, win, buf, lnum, col, tm) | |
| 5104 regmmatch_T *rmp; | |
| 5105 win_T *win; /* window in which to search or NULL */ | |
| 5106 buf_T *buf; /* buffer in which to search */ | |
| 5107 linenr_T lnum; /* nr of line to start looking for match */ | |
| 5108 colnr_T col; /* column to start looking for match */ | |
| 5109 proftime_T *tm UNUSED; /* timeout limit or NULL */ | |
| 5110 { | |
| 5111 reg_match = NULL; | |
| 5112 reg_mmatch = rmp; | |
| 5113 reg_buf = buf; | |
| 5114 reg_win = win; | |
| 5115 reg_firstlnum = lnum; | |
| 5116 reg_maxline = reg_buf->b_ml.ml_line_count - lnum; | |
| 5117 reg_line_lbr = FALSE; | |
| 5118 ireg_ic = rmp->rmm_ic; | |
| 5119 #ifdef FEAT_MBYTE | |
| 5120 ireg_icombine = FALSE; | |
| 5121 #endif | |
| 5122 ireg_maxcol = rmp->rmm_maxcol; | |
| 5123 | |
| 4503 | 5124 return nfa_regexec_both(NULL, col); |
| 4444 | 5125 } |
| 5126 | |
| 5127 #ifdef DEBUG | |
| 5128 # undef ENABLE_LOG | |
| 5129 #endif |