Commit | Line | Data |
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a0d0e21e | 1 | /* regcomp.h |
d6376244 | 2 | * |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
663f364b | 4 | * 2000, 2001, 2002, 2003, 2005, 2006, 2007, by Larry Wall and others |
d6376244 JH |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
a687059c | 9 | */ |
e1d1eefb | 10 | #include "regcharclass.h" |
a687059c | 11 | |
c277df42 IZ |
12 | typedef OP OP_4tree; /* Will be redefined later. */ |
13 | ||
07be1b83 | 14 | |
58e23c8d | 15 | /* Convert branch sequences to more efficient trie ops? */ |
07be1b83 | 16 | #define PERL_ENABLE_TRIE_OPTIMISATION 1 |
58e23c8d YO |
17 | |
18 | /* Be really agressive about optimising patterns with trie sequences? */ | |
07be1b83 | 19 | #define PERL_ENABLE_EXTENDED_TRIE_OPTIMISATION 1 |
58e23c8d | 20 | |
da7fcca4 YO |
21 | /* Use old style unicode mappings for perl and posix character classes |
22 | * | |
23 | * NOTE: Enabling this essentially breaks character class matching against unicode | |
24 | * strings, so that POSIX char classes match when they shouldn't, and \d matches | |
25 | * way more than 10 characters, and sometimes a charclass and its complement either | |
26 | * both match or neither match. | |
27 | * NOTE: Disabling this will cause various backwards compatibility issues to rear | |
28 | * their head, and tests to fail. However it will make the charclass behaviour | |
29 | * consistant regardless of internal string type, and make character class inversions | |
30 | * consistant. The tests that fail in the regex engine are basically broken tests. | |
31 | * | |
32 | * Personally I think 5.12 should disable this for sure. Its a bit more debatable for | |
33 | * 5.10, so for now im leaving it enabled. | |
34 | * | |
35 | * -demerphq | |
36 | */ | |
37 | #define PERL_LEGACY_UNICODE_CHARCLASS_MAPPINGS 1 | |
38 | ||
58e23c8d | 39 | /* Should the optimiser take positive assertions into account? */ |
68ba3a3f | 40 | #define PERL_ENABLE_POSITIVE_ASSERTION_STUDY 0 |
58e23c8d YO |
41 | |
42 | /* Not for production use: */ | |
07be1b83 | 43 | #define PERL_ENABLE_EXPERIMENTAL_REGEX_OPTIMISATIONS 0 |
58e23c8d | 44 | |
7122b237 YO |
45 | /* Activate offsets code - set to if 1 to enable */ |
46 | #ifdef DEBUGGING | |
47 | #define RE_TRACK_PATTERN_OFFSETS | |
48 | #endif | |
49 | ||
b9b4dddf YO |
50 | /* Unless the next line is uncommented it is illegal to combine lazy |
51 | matching with possessive matching. Frankly it doesn't make much sense | |
52 | to allow it as X*?+ matches nothing, X+?+ matches a single char only, | |
53 | and X{min,max}?+ matches min times only. | |
54 | */ | |
55 | /* #define REG_ALLOW_MINMOD_SUSPEND */ | |
07be1b83 | 56 | |
a687059c LW |
57 | /* |
58 | * The "internal use only" fields in regexp.h are present to pass info from | |
59 | * compile to execute that permits the execute phase to run lots faster on | |
60 | * simple cases. They are: | |
61 | * | |
bd61b366 | 62 | * regstart sv that must begin a match; NULL if none obvious |
a687059c LW |
63 | * reganch is the match anchored (at beginning-of-line only)? |
64 | * regmust string (pointer into program) that match must include, or NULL | |
79072805 | 65 | * [regmust changed to SV* for bminstr()--law] |
a687059c LW |
66 | * regmlen length of regmust string |
67 | * [regmlen not used currently] | |
68 | * | |
69 | * Regstart and reganch permit very fast decisions on suitable starting points | |
70 | * for a match, cutting down the work a lot. Regmust permits fast rejection | |
71 | * of lines that cannot possibly match. The regmust tests are costly enough | |
e50aee73 | 72 | * that pregcomp() supplies a regmust only if the r.e. contains something |
a687059c LW |
73 | * potentially expensive (at present, the only such thing detected is * or + |
74 | * at the start of the r.e., which can involve a lot of backup). Regmlen is | |
e50aee73 | 75 | * supplied because the test in pregexec() needs it and pregcomp() is computing |
a687059c LW |
76 | * it anyway. |
77 | * [regmust is now supplied always. The tests that use regmust have a | |
78 | * heuristic that disables the test if it usually matches.] | |
79 | * | |
80 | * [In fact, we now use regmust in many cases to locate where the search | |
81 | * starts in the string, so if regback is >= 0, the regmust search is never | |
82 | * wasted effort. The regback variable says how many characters back from | |
83 | * where regmust matched is the earliest possible start of the match. | |
84 | * For instance, /[a-z].foo/ has a regmust of 'foo' and a regback of 2.] | |
85 | */ | |
86 | ||
87 | /* | |
88 | * Structure for regexp "program". This is essentially a linear encoding | |
89 | * of a nondeterministic finite-state machine (aka syntax charts or | |
90 | * "railroad normal form" in parsing technology). Each node is an opcode | |
91 | * plus a "next" pointer, possibly plus an operand. "Next" pointers of | |
92 | * all nodes except BRANCH implement concatenation; a "next" pointer with | |
93 | * a BRANCH on both ends of it is connecting two alternatives. (Here we | |
94 | * have one of the subtle syntax dependencies: an individual BRANCH (as | |
95 | * opposed to a collection of them) is never concatenated with anything | |
96 | * because of operator precedence.) The operand of some types of node is | |
97 | * a literal string; for others, it is a node leading into a sub-FSM. In | |
98 | * particular, the operand of a BRANCH node is the first node of the branch. | |
99 | * (NB this is *not* a tree structure: the tail of the branch connects | |
a3621e74 YO |
100 | * to the thing following the set of BRANCHes.) The opcodes are defined |
101 | * in regnodes.h which is generated from regcomp.sym by regcomp.pl. | |
a687059c LW |
102 | */ |
103 | ||
a687059c LW |
104 | /* |
105 | * A node is one char of opcode followed by two chars of "next" pointer. | |
106 | * "Next" pointers are stored as two 8-bit pieces, high order first. The | |
107 | * value is a positive offset from the opcode of the node containing it. | |
108 | * An operand, if any, simply follows the node. (Note that much of the | |
109 | * code generation knows about this implicit relationship.) | |
110 | * | |
111 | * Using two bytes for the "next" pointer is vast overkill for most things, | |
112 | * but allows patterns to get big without disasters. | |
113 | * | |
e91177ed | 114 | * [The "next" pointer is always aligned on an even |
a687059c LW |
115 | * boundary, and reads the offset directly as a short. Also, there is no |
116 | * special test to reverse the sign of BACK pointers since the offset is | |
117 | * stored negative.] | |
118 | */ | |
785a26d5 YO |
119 | |
120 | /* This is the stuff that used to live in regexp.h that was truly | |
121 | private to the engine itself. It now lives here. */ | |
122 | ||
28d8d7f4 | 123 | |
785a26d5 YO |
124 | |
125 | typedef struct regexp_internal { | |
1f1031fe | 126 | int name_list_idx; /* Optional data index of an array of paren names */ |
7122b237 YO |
127 | union { |
128 | U32 *offsets; /* offset annotations 20001228 MJD | |
129 | data about mapping the program to the | |
130 | string - | |
131 | offsets[0] is proglen when this is used | |
132 | */ | |
133 | U32 proglen; | |
134 | } u; | |
135 | ||
6d5c990f RGS |
136 | regnode *regstclass; /* Optional startclass as identified or constructed |
137 | by the optimiser */ | |
138 | struct reg_data *data; /* Additional miscellaneous data used by the program. | |
139 | Used to make it easier to clone and free arbitrary | |
140 | data that the regops need. Often the ARG field of | |
141 | a regop is an index into this structure */ | |
142 | regnode program[1]; /* Unwarranted chumminess with compiler. */ | |
143 | } regexp_internal; | |
144 | ||
145 | #define RXi_SET(x,y) (x)->pprivate = (void*)(y) | |
146 | #define RXi_GET(x) ((regexp_internal *)((x)->pprivate)) | |
147 | #define RXi_GET_DECL(r,ri) regexp_internal *ri = RXi_GET(r) | |
785a26d5 YO |
148 | /* |
149 | * Flags stored in regexp->intflags | |
150 | * These are used only internally to the regexp engine | |
151 | * | |
152 | * See regexp.h for flags used externally to the regexp engine | |
153 | */ | |
154 | #define PREGf_SKIP 0x00000001 | |
155 | #define PREGf_IMPLICIT 0x00000002 /* Converted .* to ^.* */ | |
156 | #define PREGf_NAUGHTY 0x00000004 /* how exponential is this pattern? */ | |
157 | #define PREGf_VERBARG_SEEN 0x00000008 | |
158 | #define PREGf_CUTGROUP_SEEN 0x00000010 | |
159 | ||
160 | ||
161 | /* this is where the old regcomp.h started */ | |
a687059c | 162 | |
c277df42 | 163 | struct regnode_string { |
cd439c50 | 164 | U8 str_len; |
c277df42 IZ |
165 | U8 type; |
166 | U16 next_off; | |
cd439c50 | 167 | char string[1]; |
c277df42 | 168 | }; |
a687059c | 169 | |
6bda09f9 YO |
170 | /* Argument bearing node - workhorse, |
171 | arg1 is often for the data field */ | |
c277df42 IZ |
172 | struct regnode_1 { |
173 | U8 flags; | |
174 | U8 type; | |
175 | U16 next_off; | |
176 | U32 arg1; | |
177 | }; | |
178 | ||
6bda09f9 YO |
179 | /* Similar to a regnode_1 but with an extra signed argument */ |
180 | struct regnode_2L { | |
181 | U8 flags; | |
182 | U8 type; | |
183 | U16 next_off; | |
184 | U32 arg1; | |
185 | I32 arg2; | |
186 | }; | |
187 | ||
188 | /* 'Two field' -- Two 16 bit unsigned args */ | |
c277df42 IZ |
189 | struct regnode_2 { |
190 | U8 flags; | |
191 | U8 type; | |
192 | U16 next_off; | |
193 | U16 arg1; | |
194 | U16 arg2; | |
195 | }; | |
196 | ||
6bda09f9 | 197 | |
936ed897 | 198 | #define ANYOF_BITMAP_SIZE 32 /* 256 b/(8 b/B) */ |
e1d1eefb | 199 | #define ANYOF_CLASSBITMAP_SIZE 4 /* up to 40 (8*5) named classes */ |
936ed897 | 200 | |
786e8c11 | 201 | /* also used by trie */ |
936ed897 IZ |
202 | struct regnode_charclass { |
203 | U8 flags; | |
204 | U8 type; | |
205 | U16 next_off; | |
ffc61ed2 | 206 | U32 arg1; |
19103b91 | 207 | char bitmap[ANYOF_BITMAP_SIZE]; /* only compile-time */ |
936ed897 IZ |
208 | }; |
209 | ||
19103b91 JH |
210 | struct regnode_charclass_class { /* has [[:blah:]] classes */ |
211 | U8 flags; /* should have ANYOF_CLASS here */ | |
936ed897 IZ |
212 | U8 type; |
213 | U16 next_off; | |
ffc61ed2 | 214 | U32 arg1; |
19103b91 JH |
215 | char bitmap[ANYOF_BITMAP_SIZE]; /* both compile-time */ |
216 | char classflags[ANYOF_CLASSBITMAP_SIZE]; /* and run-time */ | |
936ed897 IZ |
217 | }; |
218 | ||
9c7e81e8 AD |
219 | /* XXX fix this description. |
220 | Impose a limit of REG_INFTY on various pattern matching operations | |
221 | to limit stack growth and to avoid "infinite" recursions. | |
222 | */ | |
223 | /* The default size for REG_INFTY is I16_MAX, which is the same as | |
224 | SHORT_MAX (see perl.h). Unfortunately I16 isn't necessarily 16 bits | |
225 | (see handy.h). On the Cray C90, sizeof(short)==4 and hence I16_MAX is | |
226 | ((1<<31)-1), while on the Cray T90, sizeof(short)==8 and I16_MAX is | |
227 | ((1<<63)-1). To limit stack growth to reasonable sizes, supply a | |
228 | smaller default. | |
229 | --Andy Dougherty 11 June 1998 | |
230 | */ | |
231 | #if SHORTSIZE > 2 | |
232 | # ifndef REG_INFTY | |
233 | # define REG_INFTY ((1<<15)-1) | |
234 | # endif | |
235 | #endif | |
236 | ||
237 | #ifndef REG_INFTY | |
83cfe48c IZ |
238 | # define REG_INFTY I16_MAX |
239 | #endif | |
a687059c | 240 | |
e91177ed IZ |
241 | #define ARG_VALUE(arg) (arg) |
242 | #define ARG__SET(arg,val) ((arg) = (val)) | |
c277df42 | 243 | |
e8e3b0fb JH |
244 | #undef ARG |
245 | #undef ARG1 | |
246 | #undef ARG2 | |
247 | ||
c277df42 IZ |
248 | #define ARG(p) ARG_VALUE(ARG_LOC(p)) |
249 | #define ARG1(p) ARG_VALUE(ARG1_LOC(p)) | |
250 | #define ARG2(p) ARG_VALUE(ARG2_LOC(p)) | |
6bda09f9 | 251 | #define ARG2L(p) ARG_VALUE(ARG2L_LOC(p)) |
786e8c11 | 252 | |
c277df42 IZ |
253 | #define ARG_SET(p, val) ARG__SET(ARG_LOC(p), (val)) |
254 | #define ARG1_SET(p, val) ARG__SET(ARG1_LOC(p), (val)) | |
255 | #define ARG2_SET(p, val) ARG__SET(ARG2_LOC(p), (val)) | |
6bda09f9 | 256 | #define ARG2L_SET(p, val) ARG__SET(ARG2L_LOC(p), (val)) |
c277df42 | 257 | |
e8e3b0fb JH |
258 | #undef NEXT_OFF |
259 | #undef NODE_ALIGN | |
260 | ||
075abff3 AL |
261 | #define NEXT_OFF(p) ((p)->next_off) |
262 | #define NODE_ALIGN(node) | |
263 | #define NODE_ALIGN_FILL(node) ((node)->flags = 0xde) /* deadbeef */ | |
a687059c | 264 | |
c277df42 IZ |
265 | #define SIZE_ALIGN NODE_ALIGN |
266 | ||
e8e3b0fb JH |
267 | #undef OP |
268 | #undef OPERAND | |
269 | #undef MASK | |
270 | #undef STRING | |
271 | ||
e91177ed IZ |
272 | #define OP(p) ((p)->type) |
273 | #define OPERAND(p) (((struct regnode_string *)p)->string) | |
cd439c50 IZ |
274 | #define MASK(p) ((char*)OPERAND(p)) |
275 | #define STR_LEN(p) (((struct regnode_string *)p)->str_len) | |
276 | #define STRING(p) (((struct regnode_string *)p)->string) | |
277 | #define STR_SZ(l) ((l + sizeof(regnode) - 1) / sizeof(regnode)) | |
278 | #define NODE_SZ_STR(p) (STR_SZ(STR_LEN(p))+1) | |
279 | ||
e8e3b0fb JH |
280 | #undef NODE_ALIGN |
281 | #undef ARG_LOC | |
282 | #undef NEXTOPER | |
283 | #undef PREVOPER | |
284 | ||
e91177ed IZ |
285 | #define NODE_ALIGN(node) |
286 | #define ARG_LOC(p) (((struct regnode_1 *)p)->arg1) | |
287 | #define ARG1_LOC(p) (((struct regnode_2 *)p)->arg1) | |
288 | #define ARG2_LOC(p) (((struct regnode_2 *)p)->arg2) | |
6bda09f9 | 289 | #define ARG2L_LOC(p) (((struct regnode_2L *)p)->arg2) |
786e8c11 | 290 | |
e91177ed IZ |
291 | #define NODE_STEP_REGNODE 1 /* sizeof(regnode)/sizeof(regnode) */ |
292 | #define EXTRA_STEP_2ARGS EXTRA_SIZE(struct regnode_2) | |
293 | ||
294 | #define NODE_STEP_B 4 | |
c277df42 IZ |
295 | |
296 | #define NEXTOPER(p) ((p) + NODE_STEP_REGNODE) | |
297 | #define PREVOPER(p) ((p) - NODE_STEP_REGNODE) | |
298 | ||
e91177ed | 299 | #define FILL_ADVANCE_NODE(ptr, op) STMT_START { \ |
c277df42 | 300 | (ptr)->type = op; (ptr)->next_off = 0; (ptr)++; } STMT_END |
e91177ed | 301 | #define FILL_ADVANCE_NODE_ARG(ptr, op, arg) STMT_START { \ |
c277df42 | 302 | ARG_SET(ptr, arg); FILL_ADVANCE_NODE(ptr, op); (ptr) += 1; } STMT_END |
a687059c | 303 | |
22c35a8c | 304 | #define REG_MAGIC 0234 |
a687059c | 305 | |
830247a4 | 306 | #define SIZE_ONLY (RExC_emit == &PL_regdummy) |
c277df42 | 307 | |
936ed897 | 308 | /* Flags for node->flags of ANYOF */ |
b8c5462f | 309 | |
19103b91 | 310 | #define ANYOF_CLASS 0x08 /* has [[:blah:]] classes */ |
ffc61ed2 JH |
311 | #define ANYOF_INVERT 0x04 |
312 | #define ANYOF_FOLD 0x02 | |
313 | #define ANYOF_LOCALE 0x01 | |
b8c5462f | 314 | |
653099ff | 315 | /* Used for regstclass only */ |
ffc61ed2 JH |
316 | #define ANYOF_EOS 0x10 /* Can match an empty string too */ |
317 | ||
318 | /* There is a character or a range past 0xff */ | |
319 | #define ANYOF_UNICODE 0x20 | |
1aa99e6b | 320 | #define ANYOF_UNICODE_ALL 0x40 /* Can match any char past 0xff */ |
ffc61ed2 | 321 | |
4f66b38d HS |
322 | /* size of node is large (includes class pointer) */ |
323 | #define ANYOF_LARGE 0x80 | |
324 | ||
ffc61ed2 JH |
325 | /* Are there any runtime flags on in this node? */ |
326 | #define ANYOF_RUNTIME(s) (ANYOF_FLAGS(s) & 0x0f) | |
327 | ||
328 | #define ANYOF_FLAGS_ALL 0xff | |
653099ff | 329 | |
936ed897 | 330 | /* Character classes for node->classflags of ANYOF */ |
653099ff GS |
331 | /* Should be synchronized with a table in regprop() */ |
332 | /* 2n should pair with 2n+1 */ | |
b8c5462f | 333 | |
289d4f09 | 334 | #define ANYOF_ALNUM 0 /* \w, PL_utf8_alnum, utf8::IsWord, ALNUM */ |
b8c5462f | 335 | #define ANYOF_NALNUM 1 |
aaa51d5e | 336 | #define ANYOF_SPACE 2 /* \s */ |
b8c5462f | 337 | #define ANYOF_NSPACE 3 |
24d786f4 | 338 | #define ANYOF_DIGIT 4 /* \d */ |
b8c5462f | 339 | #define ANYOF_NDIGIT 5 |
24d786f4 | 340 | #define ANYOF_ALNUMC 6 /* [[:alnum:]] isalnum(3), utf8::IsAlnum, ALNUMC */ |
b8c5462f JH |
341 | #define ANYOF_NALNUMC 7 |
342 | #define ANYOF_ALPHA 8 | |
343 | #define ANYOF_NALPHA 9 | |
344 | #define ANYOF_ASCII 10 | |
345 | #define ANYOF_NASCII 11 | |
346 | #define ANYOF_CNTRL 12 | |
347 | #define ANYOF_NCNTRL 13 | |
348 | #define ANYOF_GRAPH 14 | |
349 | #define ANYOF_NGRAPH 15 | |
350 | #define ANYOF_LOWER 16 | |
351 | #define ANYOF_NLOWER 17 | |
352 | #define ANYOF_PRINT 18 | |
353 | #define ANYOF_NPRINT 19 | |
354 | #define ANYOF_PUNCT 20 | |
355 | #define ANYOF_NPUNCT 21 | |
356 | #define ANYOF_UPPER 22 | |
357 | #define ANYOF_NUPPER 23 | |
358 | #define ANYOF_XDIGIT 24 | |
359 | #define ANYOF_NXDIGIT 25 | |
aaa51d5e JF |
360 | #define ANYOF_PSXSPC 26 /* POSIX space: \s plus the vertical tab */ |
361 | #define ANYOF_NPSXSPC 27 | |
ffc61ed2 | 362 | #define ANYOF_BLANK 28 /* GNU extension: space and tab: non-vertical space */ |
289d4f09 | 363 | #define ANYOF_NBLANK 29 |
b8c5462f | 364 | |
aaa51d5e | 365 | #define ANYOF_MAX 32 |
b8c5462f | 366 | |
e1d1eefb YO |
367 | /* pseudo classes, not stored in the class bitmap, but used as flags |
368 | during compilation of char classes */ | |
369 | ||
370 | #define ANYOF_VERTWS (ANYOF_MAX+1) | |
371 | #define ANYOF_NVERTWS (ANYOF_MAX+2) | |
372 | #define ANYOF_HORIZWS (ANYOF_MAX+3) | |
373 | #define ANYOF_NHORIZWS (ANYOF_MAX+4) | |
374 | ||
b8c5462f JH |
375 | /* Backward source code compatibility. */ |
376 | ||
377 | #define ANYOF_ALNUML ANYOF_ALNUM | |
378 | #define ANYOF_NALNUML ANYOF_NALNUM | |
379 | #define ANYOF_SPACEL ANYOF_SPACE | |
380 | #define ANYOF_NSPACEL ANYOF_NSPACE | |
381 | ||
382 | /* Utility macros for the bitmap and classes of ANYOF */ | |
383 | ||
936ed897 IZ |
384 | #define ANYOF_SIZE (sizeof(struct regnode_charclass)) |
385 | #define ANYOF_CLASS_SIZE (sizeof(struct regnode_charclass_class)) | |
b8c5462f | 386 | |
936ed897 | 387 | #define ANYOF_FLAGS(p) ((p)->flags) |
b8c5462f JH |
388 | |
389 | #define ANYOF_BIT(c) (1 << ((c) & 7)) | |
390 | ||
936ed897 | 391 | #define ANYOF_CLASS_BYTE(p, c) (((struct regnode_charclass_class*)(p))->classflags[((c) >> 3) & 3]) |
b8c5462f JH |
392 | #define ANYOF_CLASS_SET(p, c) (ANYOF_CLASS_BYTE(p, c) |= ANYOF_BIT(c)) |
393 | #define ANYOF_CLASS_CLEAR(p, c) (ANYOF_CLASS_BYTE(p, c) &= ~ANYOF_BIT(c)) | |
394 | #define ANYOF_CLASS_TEST(p, c) (ANYOF_CLASS_BYTE(p, c) & ANYOF_BIT(c)) | |
395 | ||
936ed897 IZ |
396 | #define ANYOF_CLASS_ZERO(ret) Zero(((struct regnode_charclass_class*)(ret))->classflags, ANYOF_CLASSBITMAP_SIZE, char) |
397 | #define ANYOF_BITMAP_ZERO(ret) Zero(((struct regnode_charclass*)(ret))->bitmap, ANYOF_BITMAP_SIZE, char) | |
398 | ||
399 | #define ANYOF_BITMAP(p) (((struct regnode_charclass*)(p))->bitmap) | |
786e8c11 | 400 | #define ANYOF_BITMAP_BYTE(p, c) (ANYOF_BITMAP(p)[(((U8)(c)) >> 3) & 31]) |
b8c5462f JH |
401 | #define ANYOF_BITMAP_SET(p, c) (ANYOF_BITMAP_BYTE(p, c) |= ANYOF_BIT(c)) |
402 | #define ANYOF_BITMAP_CLEAR(p,c) (ANYOF_BITMAP_BYTE(p, c) &= ~ANYOF_BIT(c)) | |
403 | #define ANYOF_BITMAP_TEST(p, c) (ANYOF_BITMAP_BYTE(p, c) & ANYOF_BIT(c)) | |
404 | ||
f8bef550 NC |
405 | #define ANYOF_BITMAP_SETALL(p) \ |
406 | memset (ANYOF_BITMAP(p), 255, ANYOF_BITMAP_SIZE) | |
407 | #define ANYOF_BITMAP_CLEARALL(p) \ | |
408 | Zero (ANYOF_BITMAP(p), ANYOF_BITMAP_SIZE) | |
409 | /* Check that all 256 bits are all set. Used in S_cl_is_anything() */ | |
410 | #define ANYOF_BITMAP_TESTALLSET(p) \ | |
411 | memEQ (ANYOF_BITMAP(p), "\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377\377", ANYOF_BITMAP_SIZE) | |
412 | ||
936ed897 IZ |
413 | #define ANYOF_SKIP ((ANYOF_SIZE - 1)/sizeof(regnode)) |
414 | #define ANYOF_CLASS_SKIP ((ANYOF_CLASS_SIZE - 1)/sizeof(regnode)) | |
415 | #define ANYOF_CLASS_ADD_SKIP (ANYOF_CLASS_SKIP - ANYOF_SKIP) | |
c277df42 | 416 | |
786e8c11 | 417 | |
a687059c LW |
418 | /* |
419 | * Utility definitions. | |
420 | */ | |
2304df62 | 421 | #ifndef CHARMASK |
075abff3 | 422 | # define UCHARAT(p) ((int)*(const U8*)(p)) |
a687059c | 423 | #else |
075abff3 | 424 | # define UCHARAT(p) ((int)*(p)&CHARMASK) |
a687059c | 425 | #endif |
a687059c | 426 | |
c277df42 IZ |
427 | #define EXTRA_SIZE(guy) ((sizeof(guy)-1)/sizeof(struct regnode)) |
428 | ||
3dab1dad YO |
429 | #define REG_SEEN_ZERO_LEN 0x00000001 |
430 | #define REG_SEEN_LOOKBEHIND 0x00000002 | |
431 | #define REG_SEEN_GPOS 0x00000004 | |
432 | #define REG_SEEN_EVAL 0x00000008 | |
433 | #define REG_SEEN_CANY 0x00000010 | |
cce850e4 | 434 | #define REG_SEEN_SANY REG_SEEN_CANY /* src bckwrd cmpt */ |
6bda09f9 | 435 | #define REG_SEEN_RECURSE 0x00000020 |
eaf3ca90 | 436 | #define REG_TOP_LEVEL_BRANCHES 0x00000040 |
e2e6a0f1 | 437 | #define REG_SEEN_VERBARG 0x00000080 |
5d458dd8 | 438 | #define REG_SEEN_CUTGROUP 0x00000100 |
bcdf7404 | 439 | #define REG_SEEN_RUN_ON_COMMENT 0x00000200 |
d09b2d29 | 440 | |
73c4f7a1 GS |
441 | START_EXTERN_C |
442 | ||
be8e71aa YO |
443 | #ifdef PLUGGABLE_RE_EXTENSION |
444 | #include "re_nodes.h" | |
445 | #else | |
d09b2d29 | 446 | #include "regnodes.h" |
be8e71aa | 447 | #endif |
d09b2d29 | 448 | |
4d61ec05 | 449 | /* The following have no fixed length. U8 so we can do strchr() on it. */ |
d09b2d29 | 450 | #ifndef DOINIT |
4d61ec05 | 451 | EXTCONST U8 PL_varies[]; |
d09b2d29 | 452 | #else |
4d61ec05 | 453 | EXTCONST U8 PL_varies[] = { |
0111c4fd | 454 | BRANCH, BACK, STAR, PLUS, CURLY, CURLYX, REF, REFF, REFFL, |
99ed40ff YO |
455 | WHILEM, CURLYM, CURLYN, BRANCHJ, IFTHEN, SUSPEND, CLUMP, |
456 | NREF, NREFF, NREFFL, | |
457 | 0 | |
c277df42 | 458 | }; |
d09b2d29 | 459 | #endif |
c277df42 | 460 | |
4d61ec05 GS |
461 | /* The following always have a length of 1. U8 we can do strchr() on it. */ |
462 | /* (Note that length 1 means "one character" under UTF8, not "one octet".) */ | |
d09b2d29 | 463 | #ifndef DOINIT |
4d61ec05 | 464 | EXTCONST U8 PL_simple[]; |
d09b2d29 | 465 | #else |
4d61ec05 | 466 | EXTCONST U8 PL_simple[] = { |
f33976b4 | 467 | REG_ANY, SANY, CANY, |
ffc61ed2 JH |
468 | ANYOF, |
469 | ALNUM, ALNUML, | |
470 | NALNUM, NALNUML, | |
471 | SPACE, SPACEL, | |
472 | NSPACE, NSPACEL, | |
473 | DIGIT, NDIGIT, | |
e1d1eefb YO |
474 | VERTWS, NVERTWS, |
475 | HORIZWS, NHORIZWS, | |
ffc61ed2 | 476 | 0 |
c277df42 IZ |
477 | }; |
478 | #endif | |
479 | ||
f9f4320a YO |
480 | #ifndef PLUGGABLE_RE_EXTENSION |
481 | #ifndef DOINIT | |
482 | EXTCONST regexp_engine PL_core_reg_engine; | |
483 | #else /* DOINIT */ | |
484 | EXTCONST regexp_engine PL_core_reg_engine = { | |
fe578d7f | 485 | Perl_re_compile, |
2fdbfb4d | 486 | Perl_regexec_flags, |
f9f4320a YO |
487 | Perl_re_intuit_start, |
488 | Perl_re_intuit_string, | |
2fdbfb4d AB |
489 | Perl_regfree_internal, |
490 | Perl_reg_numbered_buff_fetch, | |
491 | Perl_reg_numbered_buff_store, | |
492 | Perl_reg_numbered_buff_length, | |
192b9cd1 AB |
493 | Perl_reg_named_buff, |
494 | Perl_reg_named_buff_iter, | |
49d7dfbc | 495 | Perl_reg_qr_package, |
f9f4320a | 496 | #if defined(USE_ITHREADS) |
f8149455 | 497 | Perl_regdupe_internal |
f9f4320a YO |
498 | #endif |
499 | }; | |
500 | #endif /* DOINIT */ | |
501 | #endif /* PLUGGABLE_RE_EXTENSION */ | |
502 | ||
503 | ||
73c4f7a1 | 504 | END_EXTERN_C |
cad2e5aa | 505 | |
cad2e5aa | 506 | |
261faec3 MJD |
507 | /* .what is a character array with one character for each member of .data |
508 | * The character describes the function of the corresponding .data item: | |
0111c4fd | 509 | * f - start-class data for regstclass optimization |
261faec3 MJD |
510 | * n - Root of op tree for (?{EVAL}) item |
511 | * o - Start op for (?{EVAL}) item | |
3dab1dad | 512 | * p - Pad for (?{EVAL}) item |
38a44b82 | 513 | * s - swash for Unicode-style character class, and the multicharacter |
9e55ce06 JH |
514 | * strings resulting from casefolding the single-character entries |
515 | * in the character class | |
a3621e74 | 516 | * t - trie struct |
55eed653 | 517 | * u - trie struct's widecharmap (a HV, so can't share, must dup) |
2b8b4781 | 518 | * also used for revcharmap and words under DEBUGGING |
07be1b83 | 519 | * T - aho-trie struct |
81714fb9 | 520 | * S - sv for named capture lookup |
261faec3 | 521 | * 20010712 mjd@plover.com |
c3613ed7 | 522 | * (Remember to update re_dup() and pregfree() if you add any items.) |
261faec3 | 523 | */ |
cad2e5aa JH |
524 | struct reg_data { |
525 | U32 count; | |
526 | U8 *what; | |
527 | void* data[1]; | |
528 | }; | |
529 | ||
a1cac82e NC |
530 | /* Code in S_to_utf8_substr() and S_to_byte_substr() in regexec.c accesses |
531 | anchored* and float* via array indexes 0 and 1. */ | |
cad2e5aa | 532 | #define anchored_substr substrs->data[0].substr |
33b8afdf | 533 | #define anchored_utf8 substrs->data[0].utf8_substr |
cad2e5aa | 534 | #define anchored_offset substrs->data[0].min_offset |
1de06328 YO |
535 | #define anchored_end_shift substrs->data[0].end_shift |
536 | ||
cad2e5aa | 537 | #define float_substr substrs->data[1].substr |
33b8afdf | 538 | #define float_utf8 substrs->data[1].utf8_substr |
cad2e5aa JH |
539 | #define float_min_offset substrs->data[1].min_offset |
540 | #define float_max_offset substrs->data[1].max_offset | |
1de06328 YO |
541 | #define float_end_shift substrs->data[1].end_shift |
542 | ||
cad2e5aa | 543 | #define check_substr substrs->data[2].substr |
33b8afdf | 544 | #define check_utf8 substrs->data[2].utf8_substr |
cad2e5aa JH |
545 | #define check_offset_min substrs->data[2].min_offset |
546 | #define check_offset_max substrs->data[2].max_offset | |
1de06328 | 547 | #define check_end_shift substrs->data[2].end_shift |
a3621e74 | 548 | |
288b8c02 NC |
549 | #define RX_ANCHORED_SUBSTR(rx) (((struct regexp *)SvANY(rx))->anchored_substr) |
550 | #define RX_ANCHORED_UTF8(rx) (((struct regexp *)SvANY(rx))->anchored_utf8) | |
551 | #define RX_FLOAT_SUBSTR(rx) (((struct regexp *)SvANY(rx))->float_substr) | |
552 | #define RX_FLOAT_UTF8(rx) (((struct regexp *)SvANY(rx))->float_utf8) | |
a3621e74 YO |
553 | |
554 | /* trie related stuff */ | |
5d9a96ca | 555 | |
a3621e74 YO |
556 | /* a transition record for the state machine. the |
557 | check field determines which state "owns" the | |
558 | transition. the char the transition is for is | |
559 | determined by offset from the owning states base | |
560 | field. the next field determines which state | |
561 | is to be transitioned to if any. | |
562 | */ | |
563 | struct _reg_trie_trans { | |
564 | U32 next; | |
565 | U32 check; | |
566 | }; | |
567 | ||
568 | /* a transition list element for the list based representation */ | |
569 | struct _reg_trie_trans_list_elem { | |
570 | U16 forid; | |
571 | U32 newstate; | |
572 | }; | |
573 | typedef struct _reg_trie_trans_list_elem reg_trie_trans_le; | |
574 | ||
575 | /* a state for compressed nodes. base is an offset | |
576 | into an array of reg_trie_trans array. If wordnum is | |
577 | nonzero the state is accepting. if base is zero then | |
578 | the state has no children (and will be accepting) | |
579 | */ | |
580 | struct _reg_trie_state { | |
581 | U16 wordnum; | |
582 | union { | |
583 | U32 base; | |
584 | reg_trie_trans_le* list; | |
585 | } trans; | |
586 | }; | |
587 | ||
588 | ||
589 | ||
a3621e74 YO |
590 | typedef struct _reg_trie_state reg_trie_state; |
591 | typedef struct _reg_trie_trans reg_trie_trans; | |
592 | ||
593 | ||
594 | /* anything in here that needs to be freed later | |
23eab42c NC |
595 | should be dealt with in pregfree. |
596 | refcount is first in both this and _reg_ac_data to allow a space | |
597 | optimisation in Perl_regdupe. */ | |
a3621e74 | 598 | struct _reg_trie_data { |
23eab42c | 599 | U32 refcount; /* number of times this trie is referenced */ |
786e8c11 YO |
600 | U32 lasttrans; /* last valid transition element */ |
601 | U16 *charmap; /* byte to charid lookup array */ | |
786e8c11 YO |
602 | reg_trie_state *states; /* state data */ |
603 | reg_trie_trans *trans; /* array of transition elements */ | |
604 | char *bitmap; /* stclass bitmap */ | |
786e8c11 YO |
605 | U32 *wordlen; /* array of lengths of words */ |
606 | U16 *jump; /* optional 1 indexed array of offsets before tail | |
607 | for the node following a given word. */ | |
608 | U16 *nextword; /* optional 1 indexed array to support linked list | |
609 | of duplicate wordnums */ | |
1b5c067c NC |
610 | U16 uniquecharcount; /* unique chars in trie (width of trans table) */ |
611 | U32 startstate; /* initial state - used for common prefix optimisation */ | |
612 | STRLEN minlen; /* minimum length of words in trie - build/opt only? */ | |
613 | STRLEN maxlen; /* maximum length of words in trie - build/opt only? */ | |
1e2e3d02 YO |
614 | U32 statecount; /* Build only - number of states in the states array |
615 | (including the unused zero state) */ | |
786e8c11 | 616 | U32 wordcount; /* Build only */ |
a3621e74 | 617 | #ifdef DEBUGGING |
786e8c11 | 618 | STRLEN charcount; /* Build only */ |
a3621e74 YO |
619 | #endif |
620 | }; | |
2b8b4781 NC |
621 | /* There is one (3 under DEBUGGING) pointers that logically belong in this |
622 | structure, but are held outside as they need duplication on thread cloning, | |
623 | whereas the rest of the structure can be read only: | |
624 | HV *widecharmap; code points > 255 to charid | |
625 | #ifdef DEBUGGING | |
626 | AV *words; Array of words contained in trie, for dumping | |
627 | AV *revcharmap; Map of each charid back to its character representation | |
628 | #endif | |
629 | */ | |
630 | ||
631 | #define TRIE_WORDS_OFFSET 2 | |
632 | ||
a3621e74 YO |
633 | typedef struct _reg_trie_data reg_trie_data; |
634 | ||
23eab42c NC |
635 | /* refcount is first in both this and _reg_trie_data to allow a space |
636 | optimisation in Perl_regdupe. */ | |
07be1b83 | 637 | struct _reg_ac_data { |
23eab42c | 638 | U32 refcount; |
1b5c067c | 639 | U32 trie; |
07be1b83 YO |
640 | U32 *fail; |
641 | reg_trie_state *states; | |
07be1b83 YO |
642 | }; |
643 | typedef struct _reg_ac_data reg_ac_data; | |
644 | ||
3dab1dad YO |
645 | /* ANY_BIT doesnt use the structure, so we can borrow it here. |
646 | This is simpler than refactoring all of it as wed end up with | |
647 | three different sets... */ | |
648 | ||
649 | #define TRIE_BITMAP(p) (((reg_trie_data *)(p))->bitmap) | |
786e8c11 | 650 | #define TRIE_BITMAP_BYTE(p, c) (TRIE_BITMAP(p)[(((U8)(c)) >> 3) & 31]) |
5dfe062f YO |
651 | #define TRIE_BITMAP_SET(p, c) (TRIE_BITMAP_BYTE(p, c) |= ANYOF_BIT((U8)c)) |
652 | #define TRIE_BITMAP_CLEAR(p,c) (TRIE_BITMAP_BYTE(p, c) &= ~ANYOF_BIT((U8)c)) | |
653 | #define TRIE_BITMAP_TEST(p, c) (TRIE_BITMAP_BYTE(p, c) & ANYOF_BIT((U8)c)) | |
3dab1dad | 654 | |
1de06328 YO |
655 | #define IS_ANYOF_TRIE(op) ((op)==TRIEC || (op)==AHOCORASICKC) |
656 | #define IS_TRIE_AC(op) ((op)>=AHOCORASICK) | |
657 | ||
658 | ||
786e8c11 YO |
659 | #define BITMAP_BYTE(p, c) (((U8*)p)[(((U8)(c)) >> 3) & 31]) |
660 | #define BITMAP_TEST(p, c) (BITMAP_BYTE(p, c) & ANYOF_BIT((U8)c)) | |
3dab1dad | 661 | |
a3621e74 YO |
662 | /* these defines assume uniquecharcount is the correct variable, and state may be evaluated twice */ |
663 | #define TRIE_NODENUM(state) (((state)-1)/(trie->uniquecharcount)+1) | |
664 | #define SAFE_TRIE_NODENUM(state) ((state) ? (((state)-1)/(trie->uniquecharcount)+1) : (state)) | |
665 | #define TRIE_NODEIDX(state) ((state) ? (((state)-1)*(trie->uniquecharcount)+1) : (state)) | |
666 | ||
3dab1dad | 667 | #ifdef DEBUGGING |
3dab1dad | 668 | #define TRIE_CHARCOUNT(trie) ((trie)->charcount) |
3dab1dad | 669 | #else |
3dab1dad | 670 | #define TRIE_CHARCOUNT(trie) (trie_charcount) |
3dab1dad | 671 | #endif |
a3621e74 | 672 | |
0111c4fd RGS |
673 | #define RE_TRIE_MAXBUF_INIT 65536 |
674 | #define RE_TRIE_MAXBUF_NAME "\022E_TRIE_MAXBUF" | |
a3621e74 YO |
675 | #define RE_DEBUG_FLAGS "\022E_DEBUG_FLAGS" |
676 | ||
be8e71aa YO |
677 | /* |
678 | ||
679 | RE_DEBUG_FLAGS is used to control what debug output is emitted | |
680 | its divided into three groups of options, some of which interact. | |
681 | The three groups are: Compile, Execute, Extra. There is room for a | |
682 | further group, as currently only the low three bytes are used. | |
683 | ||
684 | Compile Options: | |
07be1b83 | 685 | |
be8e71aa YO |
686 | PARSE |
687 | PEEP | |
688 | TRIE | |
689 | PROGRAM | |
690 | OFFSETS | |
a3621e74 | 691 | |
be8e71aa | 692 | Execute Options: |
a3621e74 | 693 | |
be8e71aa YO |
694 | INTUIT |
695 | MATCH | |
696 | TRIE | |
a3621e74 | 697 | |
be8e71aa | 698 | Extra Options |
a3621e74 | 699 | |
be8e71aa YO |
700 | TRIE |
701 | OFFSETS | |
702 | ||
703 | If you modify any of these make sure you make corresponding changes to | |
704 | re.pm, especially to the documentation. | |
a3621e74 | 705 | |
be8e71aa YO |
706 | */ |
707 | ||
708 | ||
709 | /* Compile */ | |
710 | #define RE_DEBUG_COMPILE_MASK 0x0000FF | |
711 | #define RE_DEBUG_COMPILE_PARSE 0x000001 | |
712 | #define RE_DEBUG_COMPILE_OPTIMISE 0x000002 | |
713 | #define RE_DEBUG_COMPILE_TRIE 0x000004 | |
714 | #define RE_DEBUG_COMPILE_DUMP 0x000008 | |
f7819f85 | 715 | #define RE_DEBUG_COMPILE_FLAGS 0x000010 |
be8e71aa YO |
716 | |
717 | /* Execute */ | |
718 | #define RE_DEBUG_EXECUTE_MASK 0x00FF00 | |
719 | #define RE_DEBUG_EXECUTE_INTUIT 0x000100 | |
720 | #define RE_DEBUG_EXECUTE_MATCH 0x000200 | |
721 | #define RE_DEBUG_EXECUTE_TRIE 0x000400 | |
722 | ||
723 | /* Extra */ | |
724 | #define RE_DEBUG_EXTRA_MASK 0xFF0000 | |
725 | #define RE_DEBUG_EXTRA_TRIE 0x010000 | |
726 | #define RE_DEBUG_EXTRA_OFFSETS 0x020000 | |
a5ca303d YO |
727 | #define RE_DEBUG_EXTRA_OFFDEBUG 0x040000 |
728 | #define RE_DEBUG_EXTRA_STATE 0x080000 | |
729 | #define RE_DEBUG_EXTRA_OPTIMISE 0x100000 | |
e7707071 | 730 | #define RE_DEBUG_EXTRA_BUFFERS 0x400000 |
24b23f37 YO |
731 | /* combined */ |
732 | #define RE_DEBUG_EXTRA_STACK 0x280000 | |
be8e71aa | 733 | |
e68ec53f | 734 | #define RE_DEBUG_FLAG(x) (re_debug_flags & x) |
be8e71aa YO |
735 | /* Compile */ |
736 | #define DEBUG_COMPILE_r(x) DEBUG_r( \ | |
e68ec53f | 737 | if (re_debug_flags & RE_DEBUG_COMPILE_MASK) x ) |
be8e71aa | 738 | #define DEBUG_PARSE_r(x) DEBUG_r( \ |
e68ec53f | 739 | if (re_debug_flags & RE_DEBUG_COMPILE_PARSE) x ) |
be8e71aa | 740 | #define DEBUG_OPTIMISE_r(x) DEBUG_r( \ |
e68ec53f | 741 | if (re_debug_flags & RE_DEBUG_COMPILE_OPTIMISE) x ) |
be8e71aa | 742 | #define DEBUG_PARSE_r(x) DEBUG_r( \ |
e68ec53f | 743 | if (re_debug_flags & RE_DEBUG_COMPILE_PARSE) x ) |
be8e71aa | 744 | #define DEBUG_DUMP_r(x) DEBUG_r( \ |
e68ec53f | 745 | if (re_debug_flags & RE_DEBUG_COMPILE_DUMP) x ) |
be8e71aa | 746 | #define DEBUG_TRIE_COMPILE_r(x) DEBUG_r( \ |
e68ec53f | 747 | if (re_debug_flags & RE_DEBUG_COMPILE_TRIE) x ) |
f7819f85 A |
748 | #define DEBUG_FLAGS_r(x) DEBUG_r( \ |
749 | if (re_debug_flags & RE_DEBUG_COMPILE_FLAGS) x ) | |
be8e71aa YO |
750 | /* Execute */ |
751 | #define DEBUG_EXECUTE_r(x) DEBUG_r( \ | |
e68ec53f | 752 | if (re_debug_flags & RE_DEBUG_EXECUTE_MASK) x ) |
be8e71aa | 753 | #define DEBUG_INTUIT_r(x) DEBUG_r( \ |
e68ec53f | 754 | if (re_debug_flags & RE_DEBUG_EXECUTE_INTUIT) x ) |
be8e71aa | 755 | #define DEBUG_MATCH_r(x) DEBUG_r( \ |
e68ec53f | 756 | if (re_debug_flags & RE_DEBUG_EXECUTE_MATCH) x ) |
be8e71aa | 757 | #define DEBUG_TRIE_EXECUTE_r(x) DEBUG_r( \ |
e68ec53f | 758 | if (re_debug_flags & RE_DEBUG_EXECUTE_TRIE) x ) |
be8e71aa YO |
759 | |
760 | /* Extra */ | |
761 | #define DEBUG_EXTRA_r(x) DEBUG_r( \ | |
e68ec53f | 762 | if (re_debug_flags & RE_DEBUG_EXTRA_MASK) x ) |
a5ca303d YO |
763 | #define DEBUG_OFFSETS_r(x) DEBUG_r( \ |
764 | if (re_debug_flags & RE_DEBUG_EXTRA_OFFSETS) x ) | |
ab3bbdeb YO |
765 | #define DEBUG_STATE_r(x) DEBUG_r( \ |
766 | if (re_debug_flags & RE_DEBUG_EXTRA_STATE) x ) | |
24b23f37 YO |
767 | #define DEBUG_STACK_r(x) DEBUG_r( \ |
768 | if (re_debug_flags & RE_DEBUG_EXTRA_STACK) x ) | |
e7707071 YO |
769 | #define DEBUG_BUFFERS_r(x) DEBUG_r( \ |
770 | if (re_debug_flags & RE_DEBUG_EXTRA_BUFFERS) x ) | |
771 | ||
a5ca303d YO |
772 | #define DEBUG_OPTIMISE_MORE_r(x) DEBUG_r( \ |
773 | if ((RE_DEBUG_EXTRA_OPTIMISE|RE_DEBUG_COMPILE_OPTIMISE) == \ | |
774 | (re_debug_flags & (RE_DEBUG_EXTRA_OPTIMISE|RE_DEBUG_COMPILE_OPTIMISE)) ) x ) | |
07be1b83 | 775 | #define MJD_OFFSET_DEBUG(x) DEBUG_r( \ |
a5ca303d | 776 | if (re_debug_flags & RE_DEBUG_EXTRA_OFFDEBUG) \ |
be8e71aa YO |
777 | Perl_warn_nocontext x ) |
778 | #define DEBUG_TRIE_COMPILE_MORE_r(x) DEBUG_TRIE_COMPILE_r( \ | |
e68ec53f | 779 | if (re_debug_flags & RE_DEBUG_EXTRA_TRIE) x ) |
be8e71aa | 780 | #define DEBUG_TRIE_EXECUTE_MORE_r(x) DEBUG_TRIE_EXECUTE_r( \ |
e68ec53f | 781 | if (re_debug_flags & RE_DEBUG_EXTRA_TRIE) x ) |
be8e71aa YO |
782 | |
783 | #define DEBUG_TRIE_r(x) DEBUG_r( \ | |
e68ec53f | 784 | if (re_debug_flags & (RE_DEBUG_COMPILE_TRIE \ |
be8e71aa YO |
785 | | RE_DEBUG_EXECUTE_TRIE )) x ) |
786 | ||
787 | /* initialization */ | |
788 | /* get_sv() can return NULL during global destruction. */ | |
e68ec53f YO |
789 | #define GET_RE_DEBUG_FLAGS DEBUG_r({ \ |
790 | SV * re_debug_flags_sv = NULL; \ | |
791 | re_debug_flags_sv = get_sv(RE_DEBUG_FLAGS, 1); \ | |
792 | if (re_debug_flags_sv) { \ | |
8e9a8a48 | 793 | if (!SvIOK(re_debug_flags_sv)) \ |
e68ec53f | 794 | sv_setuv(re_debug_flags_sv, RE_DEBUG_COMPILE_DUMP | RE_DEBUG_EXECUTE_MASK ); \ |
8e9a8a48 | 795 | re_debug_flags=SvIV(re_debug_flags_sv); \ |
e68ec53f YO |
796 | }\ |
797 | }) | |
a3621e74 YO |
798 | |
799 | #ifdef DEBUGGING | |
ab3bbdeb | 800 | |
8e9a8a48 | 801 | #define GET_RE_DEBUG_FLAGS_DECL IV re_debug_flags = 0; GET_RE_DEBUG_FLAGS; |
ab3bbdeb YO |
802 | |
803 | #define RE_PV_COLOR_DECL(rpv,rlen,isuni,dsv,pv,l,m,c1,c2) \ | |
804 | const char * const rpv = \ | |
ddc5bc0f | 805 | pv_pretty((dsv), (pv), (l), (m), \ |
ab3bbdeb | 806 | PL_colors[(c1)],PL_colors[(c2)], \ |
0a0e9afc | 807 | PERL_PV_ESCAPE_RE |((isuni) ? PERL_PV_ESCAPE_UNI : 0) ); \ |
0df25f3d | 808 | const int rlen = SvCUR(dsv) |
ab3bbdeb YO |
809 | |
810 | #define RE_SV_ESCAPE(rpv,isuni,dsv,sv,m) \ | |
811 | const char * const rpv = \ | |
ddc5bc0f | 812 | pv_pretty((dsv), (SvPV_nolen_const(sv)), (SvCUR(sv)), (m), \ |
ab3bbdeb | 813 | PL_colors[(c1)],PL_colors[(c2)], \ |
0a0e9afc | 814 | PERL_PV_ESCAPE_RE |((isuni) ? PERL_PV_ESCAPE_UNI : 0) ) |
ab3bbdeb YO |
815 | |
816 | #define RE_PV_QUOTED_DECL(rpv,isuni,dsv,pv,l,m) \ | |
817 | const char * const rpv = \ | |
ddc5bc0f | 818 | pv_pretty((dsv), (pv), (l), (m), \ |
ab3bbdeb | 819 | PL_colors[0], PL_colors[1], \ |
95b611b0 | 820 | ( PERL_PV_PRETTY_QUOTE | PERL_PV_ESCAPE_RE | PERL_PV_PRETTY_ELLIPSES | \ |
ab3bbdeb | 821 | ((isuni) ? PERL_PV_ESCAPE_UNI : 0)) \ |
0a0e9afc | 822 | ) |
ab3bbdeb YO |
823 | |
824 | #define RE_SV_DUMPLEN(ItEm) (SvCUR(ItEm) - (SvTAIL(ItEm)!=0)) | |
825 | #define RE_SV_TAIL(ItEm) (SvTAIL(ItEm) ? "$" : "") | |
826 | ||
827 | #else /* if not DEBUGGING */ | |
828 | ||
a3621e74 | 829 | #define GET_RE_DEBUG_FLAGS_DECL |
ab3bbdeb YO |
830 | #define RE_PV_COLOR_DECL(rpv,rlen,isuni,dsv,pv,l,m,c1,c2) |
831 | #define RE_SV_ESCAPE(rpv,isuni,dsv,sv,m) | |
832 | #define RE_PV_QUOTED_DECL(rpv,isuni,dsv,pv,l,m) | |
833 | #define RE_SV_DUMPLEN(ItEm) | |
834 | #define RE_SV_TAIL(ItEm) | |
835 | ||
836 | #endif /* DEBUG RELATED DEFINES */ | |
a3621e74 | 837 | |
e9a8c099 MHM |
838 | /* |
839 | * Local variables: | |
840 | * c-indentation-style: bsd | |
841 | * c-basic-offset: 4 | |
842 | * indent-tabs-mode: t | |
843 | * End: | |
844 | * | |
845 | * ex: set ts=8 sts=4 sw=4 noet: | |
846 | */ |