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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
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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
58e23c8d 12/* Convert branch sequences to more efficient trie ops? */
07be1b83 13#define PERL_ENABLE_TRIE_OPTIMISATION 1
58e23c8d 14
486ec47a 15/* Be really aggressive about optimising patterns with trie sequences? */
07be1b83 16#define PERL_ENABLE_EXTENDED_TRIE_OPTIMISATION 1
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17
18/* Should the optimiser take positive assertions into account? */
68ba3a3f 19#define PERL_ENABLE_POSITIVE_ASSERTION_STUDY 0
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20
21/* Not for production use: */
07be1b83 22#define PERL_ENABLE_EXPERIMENTAL_REGEX_OPTIMISATIONS 0
58e23c8d 23
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24/* Activate offsets code - set to if 1 to enable */
25#ifdef DEBUGGING
26#define RE_TRACK_PATTERN_OFFSETS
27#endif
28
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29/*
30 * The "internal use only" fields in regexp.h are present to pass info from
31 * compile to execute that permits the execute phase to run lots faster on
32 * simple cases. They are:
33 *
bd61b366 34 * regstart sv that must begin a match; NULL if none obvious
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35 * reganch is the match anchored (at beginning-of-line only)?
36 * regmust string (pointer into program) that match must include, or NULL
79072805 37 * [regmust changed to SV* for bminstr()--law]
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38 * regmlen length of regmust string
39 * [regmlen not used currently]
40 *
41 * Regstart and reganch permit very fast decisions on suitable starting points
42 * for a match, cutting down the work a lot. Regmust permits fast rejection
43 * of lines that cannot possibly match. The regmust tests are costly enough
e50aee73 44 * that pregcomp() supplies a regmust only if the r.e. contains something
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45 * potentially expensive (at present, the only such thing detected is * or +
46 * at the start of the r.e., which can involve a lot of backup). Regmlen is
e50aee73 47 * supplied because the test in pregexec() needs it and pregcomp() is computing
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48 * it anyway.
49 * [regmust is now supplied always. The tests that use regmust have a
50 * heuristic that disables the test if it usually matches.]
51 *
52 * [In fact, we now use regmust in many cases to locate where the search
53 * starts in the string, so if regback is >= 0, the regmust search is never
54 * wasted effort. The regback variable says how many characters back from
55 * where regmust matched is the earliest possible start of the match.
56 * For instance, /[a-z].foo/ has a regmust of 'foo' and a regback of 2.]
57 */
58
59/*
60 * Structure for regexp "program". This is essentially a linear encoding
61 * of a nondeterministic finite-state machine (aka syntax charts or
62 * "railroad normal form" in parsing technology). Each node is an opcode
63 * plus a "next" pointer, possibly plus an operand. "Next" pointers of
64 * all nodes except BRANCH implement concatenation; a "next" pointer with
65 * a BRANCH on both ends of it is connecting two alternatives. (Here we
66 * have one of the subtle syntax dependencies: an individual BRANCH (as
67 * opposed to a collection of them) is never concatenated with anything
68 * because of operator precedence.) The operand of some types of node is
69 * a literal string; for others, it is a node leading into a sub-FSM. In
70 * particular, the operand of a BRANCH node is the first node of the branch.
71 * (NB this is *not* a tree structure: the tail of the branch connects
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72 * to the thing following the set of BRANCHes.) The opcodes are defined
73 * in regnodes.h which is generated from regcomp.sym by regcomp.pl.
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74 */
75
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76/*
77 * A node is one char of opcode followed by two chars of "next" pointer.
78 * "Next" pointers are stored as two 8-bit pieces, high order first. The
79 * value is a positive offset from the opcode of the node containing it.
80 * An operand, if any, simply follows the node. (Note that much of the
81 * code generation knows about this implicit relationship.)
82 *
83 * Using two bytes for the "next" pointer is vast overkill for most things,
84 * but allows patterns to get big without disasters.
85 *
e91177ed 86 * [The "next" pointer is always aligned on an even
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87 * boundary, and reads the offset directly as a short. Also, there is no
88 * special test to reverse the sign of BACK pointers since the offset is
89 * stored negative.]
90 */
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91
92/* This is the stuff that used to live in regexp.h that was truly
93 private to the engine itself. It now lives here. */
94
28d8d7f4 95
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96
97 typedef struct regexp_internal {
1f1031fe 98 int name_list_idx; /* Optional data index of an array of paren names */
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99 union {
100 U32 *offsets; /* offset annotations 20001228 MJD
101 data about mapping the program to the
102 string -
103 offsets[0] is proglen when this is used
104 */
105 U32 proglen;
106 } u;
107
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108 regnode *regstclass; /* Optional startclass as identified or constructed
109 by the optimiser */
110 struct reg_data *data; /* Additional miscellaneous data used by the program.
111 Used to make it easier to clone and free arbitrary
112 data that the regops need. Often the ARG field of
113 a regop is an index into this structure */
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114 struct reg_code_block *code_blocks;/* positions of literal (?{}) */
115 int num_code_blocks; /* size of code_blocks[] */
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116 regnode program[1]; /* Unwarranted chumminess with compiler. */
117} regexp_internal;
118
119#define RXi_SET(x,y) (x)->pprivate = (void*)(y)
120#define RXi_GET(x) ((regexp_internal *)((x)->pprivate))
121#define RXi_GET_DECL(r,ri) regexp_internal *ri = RXi_GET(r)
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122/*
123 * Flags stored in regexp->intflags
124 * These are used only internally to the regexp engine
125 *
126 * See regexp.h for flags used externally to the regexp engine
127 */
128#define PREGf_SKIP 0x00000001
129#define PREGf_IMPLICIT 0x00000002 /* Converted .* to ^.* */
130#define PREGf_NAUGHTY 0x00000004 /* how exponential is this pattern? */
131#define PREGf_VERBARG_SEEN 0x00000008
132#define PREGf_CUTGROUP_SEEN 0x00000010
732caac7 133#define PREGf_USE_RE_EVAL 0x00000020 /* compiled with "use re 'eval'" */
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134
135
136/* this is where the old regcomp.h started */
a687059c 137
c277df42 138struct regnode_string {
cd439c50 139 U8 str_len;
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140 U8 type;
141 U16 next_off;
cd439c50 142 char string[1];
c277df42 143};
a687059c 144
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145/* Argument bearing node - workhorse,
146 arg1 is often for the data field */
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147struct regnode_1 {
148 U8 flags;
149 U8 type;
150 U16 next_off;
151 U32 arg1;
152};
153
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154/* Similar to a regnode_1 but with an extra signed argument */
155struct regnode_2L {
156 U8 flags;
157 U8 type;
158 U16 next_off;
159 U32 arg1;
160 I32 arg2;
161};
162
163/* 'Two field' -- Two 16 bit unsigned args */
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164struct regnode_2 {
165 U8 flags;
166 U8 type;
167 U16 next_off;
168 U16 arg1;
169 U16 arg2;
170};
171
6bda09f9 172
936ed897 173#define ANYOF_BITMAP_SIZE 32 /* 256 b/(8 b/B) */
936ed897 174
786e8c11 175/* also used by trie */
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176struct regnode_charclass {
177 U8 flags;
178 U8 type;
179 U16 next_off;
bf3f2d85 180 U32 arg1; /* used as ptr in S_regclass */
19103b91 181 char bitmap[ANYOF_BITMAP_SIZE]; /* only compile-time */
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182};
183
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184/* has runtime (locale) \d, \w, ..., [:posix:] classes */
185struct regnode_charclass_class {
8efd3f97 186 U8 flags; /* ANYOF_POSIXL bit must go here */
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187 U8 type;
188 U16 next_off;
bf3f2d85 189 U32 arg1; /* used as ptr in S_regclass */
19103b91 190 char bitmap[ANYOF_BITMAP_SIZE]; /* both compile-time */
9cf78fa0 191 U32 classflags; /* and run-time */
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192};
193
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194/* Synthetic start class; is a regnode_charclass_class plus an SV*. Note that
195 * the 'next_off' field is unused, as the SSC stands alone, so there is never a
196 * next node. */
b8f7bb16 197struct regnode_ssc {
8efd3f97 198 U8 flags; /* ANYOF_POSIXL bit must go here */
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199 U8 type;
200 U16 next_off;
201 U32 arg1; /* used as ptr in S_regclass */
202 char bitmap[ANYOF_BITMAP_SIZE]; /* both compile-time */
203 U32 classflags; /* and run-time */
204 SV* invlist; /* list of code points matched */
205};
206
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207/* XXX fix this description.
208 Impose a limit of REG_INFTY on various pattern matching operations
209 to limit stack growth and to avoid "infinite" recursions.
210*/
211/* The default size for REG_INFTY is I16_MAX, which is the same as
212 SHORT_MAX (see perl.h). Unfortunately I16 isn't necessarily 16 bits
213 (see handy.h). On the Cray C90, sizeof(short)==4 and hence I16_MAX is
214 ((1<<31)-1), while on the Cray T90, sizeof(short)==8 and I16_MAX is
215 ((1<<63)-1). To limit stack growth to reasonable sizes, supply a
216 smaller default.
217 --Andy Dougherty 11 June 1998
218*/
219#if SHORTSIZE > 2
220# ifndef REG_INFTY
221# define REG_INFTY ((1<<15)-1)
222# endif
223#endif
224
225#ifndef REG_INFTY
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226# define REG_INFTY I16_MAX
227#endif
a687059c 228
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229#define ARG_VALUE(arg) (arg)
230#define ARG__SET(arg,val) ((arg) = (val))
c277df42 231
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232#undef ARG
233#undef ARG1
234#undef ARG2
235
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236#define ARG(p) ARG_VALUE(ARG_LOC(p))
237#define ARG1(p) ARG_VALUE(ARG1_LOC(p))
238#define ARG2(p) ARG_VALUE(ARG2_LOC(p))
6bda09f9 239#define ARG2L(p) ARG_VALUE(ARG2L_LOC(p))
786e8c11 240
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241#define ARG_SET(p, val) ARG__SET(ARG_LOC(p), (val))
242#define ARG1_SET(p, val) ARG__SET(ARG1_LOC(p), (val))
243#define ARG2_SET(p, val) ARG__SET(ARG2_LOC(p), (val))
6bda09f9 244#define ARG2L_SET(p, val) ARG__SET(ARG2L_LOC(p), (val))
c277df42 245
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246#undef NEXT_OFF
247#undef NODE_ALIGN
248
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249#define NEXT_OFF(p) ((p)->next_off)
250#define NODE_ALIGN(node)
251#define NODE_ALIGN_FILL(node) ((node)->flags = 0xde) /* deadbeef */
a687059c 252
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253#define SIZE_ALIGN NODE_ALIGN
254
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255#undef OP
256#undef OPERAND
257#undef MASK
258#undef STRING
259
e91177ed 260#define OP(p) ((p)->type)
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261#define FLAGS(p) ((p)->flags) /* Caution: Doesn't apply to all \
262 regnode types. For some, it's the \
263 character set of the regnode */
e91177ed 264#define OPERAND(p) (((struct regnode_string *)p)->string)
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265#define MASK(p) ((char*)OPERAND(p))
266#define STR_LEN(p) (((struct regnode_string *)p)->str_len)
267#define STRING(p) (((struct regnode_string *)p)->string)
268#define STR_SZ(l) ((l + sizeof(regnode) - 1) / sizeof(regnode))
269#define NODE_SZ_STR(p) (STR_SZ(STR_LEN(p))+1)
270
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271#undef NODE_ALIGN
272#undef ARG_LOC
273#undef NEXTOPER
274#undef PREVOPER
275
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276#define NODE_ALIGN(node)
277#define ARG_LOC(p) (((struct regnode_1 *)p)->arg1)
278#define ARG1_LOC(p) (((struct regnode_2 *)p)->arg1)
279#define ARG2_LOC(p) (((struct regnode_2 *)p)->arg2)
6bda09f9 280#define ARG2L_LOC(p) (((struct regnode_2L *)p)->arg2)
786e8c11 281
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282#define NODE_STEP_REGNODE 1 /* sizeof(regnode)/sizeof(regnode) */
283#define EXTRA_STEP_2ARGS EXTRA_SIZE(struct regnode_2)
284
285#define NODE_STEP_B 4
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286
287#define NEXTOPER(p) ((p) + NODE_STEP_REGNODE)
288#define PREVOPER(p) ((p) - NODE_STEP_REGNODE)
289
e91177ed 290#define FILL_ADVANCE_NODE(ptr, op) STMT_START { \
c277df42 291 (ptr)->type = op; (ptr)->next_off = 0; (ptr)++; } STMT_END
e91177ed 292#define FILL_ADVANCE_NODE_ARG(ptr, op, arg) STMT_START { \
c277df42 293 ARG_SET(ptr, arg); FILL_ADVANCE_NODE(ptr, op); (ptr) += 1; } STMT_END
a687059c 294
22c35a8c 295#define REG_MAGIC 0234
a687059c 296
9a81a976 297#define SIZE_ONLY (RExC_emit == (regnode *) & RExC_emit_dummy)
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298#define PASS1 SIZE_ONLY
299#define PASS2 (! SIZE_ONLY)
c277df42 300
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301/* If the bitmap doesn't fully represent what this ANYOF node can match, the
302 * ARG is set to this special value (since 0, 1, ... are legal, but will never
303 * reach this high). */
304#define ANYOF_NONBITMAP_EMPTY ((U32) -1)
305
306/* The information used to be stored as as combination of the ANYOF_UTF8 and
307 * ANYOF_NONBITMAP_NON_UTF8 bits in the flags field, but was moved out of there
308 * to free up a bit for other uses. This tries to hide the change from
309 * existing code as much as possible. Now, the data structure that goes in ARG
310 * is not allocated unless it is needed, and that is what is used to determine
311 * if there is something outside the bitmap. The code now assumes that if
312 * that structure exists, that any UTF-8 encoded string should be tried against
313 * it, but a non-UTF8-encoded string will be tried only if the
314 * ANYOF_NONBITMAP_NON_UTF8 bit is also set. */
315#define ANYOF_NONBITMAP(node) (ARG(node) != ANYOF_NONBITMAP_EMPTY)
316
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317/* Flags for node->flags of ANYOF. These are in short supply, but there is one
318 * currently available. If more than this are needed, the ANYOF_LOCALE and
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319 * ANYOF_POSIXL bits could be shared, making a space penalty for all locale
320 * nodes. Also, the ABOVE_LATIN1_ALL bit could be freed up by resorting to
321 * creating a swash containing everything above 255. This introduces a
322 * performance penalty. Better would be to split it off into a separate node,
323 * which actually would improve performance a bit by allowing regexec.c to test
324 * for a UTF-8 character being above 255 without having to call a function nor
9b1eb067 325 * calculate its code point value. However, this solution might need to have a
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326 * second node type, ANYOF_SYNTHETIC_ABOVE_LATIN1_ALL. Several flags are not
327 * used in synthetic start class (SSC) nodes, so could be shared should new
328 * flags be needed for SSCs. */
b8c5462f 329
a4e790c1 330#define ANYOF_LOCALE 0x01 /* /l modifier */
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331
332/* The fold is calculated and stored in the bitmap where possible at compile
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333 * time. However under locale, the actual folding varies depending on
334 * what the locale is at the time of execution, so it has to be deferred until
335 * then */
acf67047 336#define ANYOF_LOC_FOLD 0x02
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337
338#define ANYOF_INVERT 0x04
1984f6a0 339
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340/* For the SSC node only, which cannot be inverted, so is shared with that bit.
341 * This means "Does this SSC match an empty string?" This is used only during
342 * regex compilation. */
343#define ANYOF_EMPTY_STRING ANYOF_INVERT
344
d1d040e5 345/* Set if this is a regnode_charclass_posixl vs a regnode_charclass. This
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346 * is used for runtime \d, \w, [:posix:], ..., which are used only in locale
347 * and the optimizer's synthetic start class. Non-locale \d, etc are resolved
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348 * at compile-time. Could be shared with ANYOF_LOCALE, forcing all locale
349 * nodes to be large */
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350#define ANYOF_POSIXL 0x08
351#define ANYOF_CLASS ANYOF_POSIXL
352#define ANYOF_LARGE ANYOF_POSIXL
c8d3cd88 353
899d20b9 354/* Unused: 0x10. When using, be sure to change ANYOF_FLAGS_ALL below */
f4244008 355
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356/* Can match something outside the bitmap that isn't in utf8 */
357#define ANYOF_NONBITMAP_NON_UTF8 0x20
358
61ef9872 359/* Matches every code point 0x100 and above*/
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360#define ANYOF_ABOVE_LATIN1_ALL 0x40
361#define ANYOF_UNICODE_ALL ANYOF_ABOVE_LATIN1_ALL
ffc61ed2 362
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363/* Match all Latin1 characters that aren't ASCII when the target string is not
364 * in utf8. */
365#define ANYOF_NON_UTF8_LATIN1_ALL 0x80
366
899d20b9 367#define ANYOF_FLAGS_ALL (0xff & ~0x10)
653099ff 368
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369#define ANYOF_LOCALE_FLAGS (ANYOF_LOCALE \
370 |ANYOF_LOC_FOLD \
371 |ANYOF_POSIXL)
ace6b0e4 372
936ed897 373/* Character classes for node->classflags of ANYOF */
653099ff 374/* Should be synchronized with a table in regprop() */
575a8a29 375/* 2n should be the normal one, paired with its complement at 2n+1 */
b8c5462f 376
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377#define ANYOF_ALPHA ((_CC_ALPHA) * 2)
378#define ANYOF_NALPHA ((ANYOF_ALPHA) + 1)
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379#define ANYOF_ALPHANUMERIC ((_CC_ALPHANUMERIC) * 2) /* [[:alnum:]] isalnum(3), utf8::IsAlnum */
380#define ANYOF_NALPHANUMERIC ((ANYOF_ALPHANUMERIC) + 1)
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381#define ANYOF_ASCII ((_CC_ASCII) * 2)
382#define ANYOF_NASCII ((ANYOF_ASCII) + 1)
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383#define ANYOF_BLANK ((_CC_BLANK) * 2) /* GNU extension: space and tab: non-vertical space */
384#define ANYOF_NBLANK ((ANYOF_BLANK) + 1)
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385#define ANYOF_CASED ((_CC_CASED) * 2) /* Pseudo class for [:lower:] or
386 [:upper:] under /i */
387#define ANYOF_NCASED ((ANYOF_CASED) + 1)
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388#define ANYOF_CNTRL ((_CC_CNTRL) * 2)
389#define ANYOF_NCNTRL ((ANYOF_CNTRL) + 1)
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390#define ANYOF_DIGIT ((_CC_DIGIT) * 2) /* \d */
391#define ANYOF_NDIGIT ((ANYOF_DIGIT) + 1)
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392#define ANYOF_GRAPH ((_CC_GRAPH) * 2)
393#define ANYOF_NGRAPH ((ANYOF_GRAPH) + 1)
394#define ANYOF_LOWER ((_CC_LOWER) * 2)
395#define ANYOF_NLOWER ((ANYOF_LOWER) + 1)
396#define ANYOF_PRINT ((_CC_PRINT) * 2)
397#define ANYOF_NPRINT ((ANYOF_PRINT) + 1)
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398#define ANYOF_PSXSPC ((_CC_PSXSPC) * 2) /* POSIX space: \s plus the vertical tab */
399#define ANYOF_NPSXSPC ((ANYOF_PSXSPC) + 1)
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400#define ANYOF_PUNCT ((_CC_PUNCT) * 2)
401#define ANYOF_NPUNCT ((ANYOF_PUNCT) + 1)
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402#define ANYOF_SPACE ((_CC_SPACE) * 2) /* \s */
403#define ANYOF_NSPACE ((ANYOF_SPACE) + 1)
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404#define ANYOF_UPPER ((_CC_UPPER) * 2)
405#define ANYOF_NUPPER ((ANYOF_UPPER) + 1)
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406#define ANYOF_WORDCHAR ((_CC_WORDCHAR) * 2) /* \w, PL_utf8_alnum, utf8::IsWord, ALNUM */
407#define ANYOF_NWORDCHAR ((ANYOF_WORDCHAR) + 1)
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408#define ANYOF_XDIGIT ((_CC_XDIGIT) * 2)
409#define ANYOF_NXDIGIT ((ANYOF_XDIGIT) + 1)
b8c5462f 410
87cad4c0 411/* pseudo classes below this, not stored in the class bitmap, but used as flags
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412 during compilation of char classes */
413
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414#define ANYOF_VERTWS ((_CC_VERTSPACE) * 2)
415#define ANYOF_NVERTWS ((ANYOF_VERTWS)+1)
e1d1eefb 416
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417/* It is best if this is the last one, as all above it are stored as bits in a
418 * bitmap, and it isn't part of that bitmap */
419#if _CC_VERTSPACE != _HIGHEST_REGCOMP_DOT_H_SYNC
420# error Problem with handy.h _HIGHEST_REGCOMP_DOT_H_SYNC #define
421#endif
422
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423#define ANYOF_POSIXL_MAX (ANYOF_VERTWS) /* So upper loop limit is written:
424 * '< ANYOF_MAX'
425 * Hence doesn't include VERTWS, as that
426 * is a pseudo class */
427#define ANYOF_MAX ANYOF_POSIXL_MAX
428
429#if (ANYOF_POSIXL_MAX > 32) /* Must fit in 32-bit word */
b2ef2e34 430# error Problem with handy.h _CC_foo #defines
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431#endif
432
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433#define ANYOF_HORIZWS ((ANYOF_POSIXL_MAX)+2) /* = (ANYOF_NVERTWS + 1) */
434#define ANYOF_NHORIZWS ((ANYOF_POSIXL_MAX)+3)
87cad4c0 435
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436#define ANYOF_UNIPROP ((ANYOF_POSIXL_MAX)+4) /* Used to indicate a Unicode
437 property: \p{} or \P{} */
f39a4dc2 438
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439/* Backward source code compatibility. */
440
441#define ANYOF_ALNUML ANYOF_ALNUM
442#define ANYOF_NALNUML ANYOF_NALNUM
443#define ANYOF_SPACEL ANYOF_SPACE
444#define ANYOF_NSPACEL ANYOF_NSPACE
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445#define ANYOF_ALNUM ANYOF_WORDCHAR
446#define ANYOF_NALNUM ANYOF_NWORDCHAR
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447
448/* Utility macros for the bitmap and classes of ANYOF */
449
936ed897 450#define ANYOF_SIZE (sizeof(struct regnode_charclass))
d1d040e5 451#define ANYOF_POSIXL_SIZE (sizeof(regnode_charclass_posixl))
8efd3f97 452#define ANYOF_CLASS_SIZE ANYOF_POSIXL_SIZE
b8c5462f 453
936ed897 454#define ANYOF_FLAGS(p) ((p)->flags)
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455
456#define ANYOF_BIT(c) (1 << ((c) & 7))
457
d1d040e5 458#define ANYOF_POSIXL_SET(p, c) (((regnode_charclass_posixl*) (p))->classflags |= (1U << (c)))
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459#define ANYOF_CLASS_SET(p, c) ANYOF_POSIXL_SET((p), (c))
460
d1d040e5 461#define ANYOF_POSIXL_CLEAR(p, c) (((regnode_charclass_posixl*) (p))->classflags &= ~ (1U <<(c)))
8efd3f97
KW
462#define ANYOF_CLASS_CLEAR(p, c) ANYOF_POSIXL_CLEAR((p), (c))
463
d1d040e5 464#define ANYOF_POSIXL_TEST(p, c) (((regnode_charclass_posixl*) (p))->classflags & (1U << (c)))
8efd3f97 465#define ANYOF_CLASS_TEST(p, c) ANYOF_POSIXL_TEST((p), (c))
b8c5462f 466
d1d040e5 467#define ANYOF_POSIXL_ZERO(ret) STMT_START { ((regnode_charclass_posixl*) (ret))->classflags = 0; } STMT_END
8efd3f97 468#define ANYOF_CLASS_ZERO(ret) ANYOF_POSIXL_ZERO(ret)
9cf78fa0
KW
469
470/* Shifts a bit to get, eg. 0x4000_0000, then subtracts 1 to get 0x3FFF_FFFF */
d1d040e5 471#define ANYOF_POSIXL_SETALL(ret) STMT_START { ((regnode_charclass_posixl*) (ret))->classflags = ((1U << ((ANYOF_POSIXL_MAX) - 1))) - 1; } STMT_END
8efd3f97 472#define ANYOF_CLASS_SETALL(ret) ANYOF_POSIXL_SETALL(ret)
9cf78fa0 473
8efd3f97
KW
474#define ANYOF_POSIXL_TEST_ANY_SET(p) \
475 ((ANYOF_FLAGS(p) & ANYOF_POSIXL) \
d1d040e5 476 && (((regnode_charclass_posixl*)(p))->classflags))
8efd3f97 477#define ANYOF_CLASS_TEST_ANY_SET(p) ANYOF_POSIXL_TEST_ANY_SET(p)
e867ce45 478
fb38762f
KW
479#define ANYOF_POSIXL_TEST_ALL_SET(p) \
480 ((ANYOF_FLAGS(p) & ANYOF_POSIXL) \
481 && ((regnode_charclass_posixl*) (p))->classflags == ((1U << ((ANYOF_POSIXL_MAX) - 1))) - 1)
482
b27fd97a 483#define ANYOF_POSIXL_OR(source, dest) STMT_START { (dest)->classflags |= (source)->classflags ; } STMT_END
8efd3f97 484#define ANYOF_CLASS_OR(source, dest) ANYOF_POSIXL_OR((source), (dest))
936ed897 485
cdd87c1d
KW
486#define ANYOF_POSIXL_AND(source, dest) STMT_START { (dest)->classflags &= (source)->classflags ; } STMT_END
487
9cf78fa0 488#define ANYOF_BITMAP_ZERO(ret) Zero(((struct regnode_charclass*)(ret))->bitmap, ANYOF_BITMAP_SIZE, char)
936ed897 489#define ANYOF_BITMAP(p) (((struct regnode_charclass*)(p))->bitmap)
786e8c11 490#define ANYOF_BITMAP_BYTE(p, c) (ANYOF_BITMAP(p)[(((U8)(c)) >> 3) & 31])
b8c5462f
JH
491#define ANYOF_BITMAP_SET(p, c) (ANYOF_BITMAP_BYTE(p, c) |= ANYOF_BIT(c))
492#define ANYOF_BITMAP_CLEAR(p,c) (ANYOF_BITMAP_BYTE(p, c) &= ~ANYOF_BIT(c))
493#define ANYOF_BITMAP_TEST(p, c) (ANYOF_BITMAP_BYTE(p, c) & ANYOF_BIT(c))
494
f8bef550
NC
495#define ANYOF_BITMAP_SETALL(p) \
496 memset (ANYOF_BITMAP(p), 255, ANYOF_BITMAP_SIZE)
497#define ANYOF_BITMAP_CLEARALL(p) \
498 Zero (ANYOF_BITMAP(p), ANYOF_BITMAP_SIZE)
499/* Check that all 256 bits are all set. Used in S_cl_is_anything() */
c355c09a 500#define ANYOF_BITMAP_TESTALLSET(p) /* Assumes sizeof(p) == 32 */ \
f8bef550
NC
501 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)
502
936ed897 503#define ANYOF_SKIP ((ANYOF_SIZE - 1)/sizeof(regnode))
8efd3f97
KW
504#define ANYOF_POSIXL_SKIP ((ANYOF_POSIXL_SIZE - 1)/sizeof(regnode))
505#define ANYOF_CLASS_SKIP ANYOF_POSIXL_SKIP
3a15e693 506
a687059c
LW
507/*
508 * Utility definitions.
509 */
2304df62 510#ifndef CHARMASK
075abff3 511# define UCHARAT(p) ((int)*(const U8*)(p))
a687059c 512#else
075abff3 513# define UCHARAT(p) ((int)*(p)&CHARMASK)
a687059c 514#endif
a687059c 515
c277df42
IZ
516#define EXTRA_SIZE(guy) ((sizeof(guy)-1)/sizeof(struct regnode))
517
3dab1dad
YO
518#define REG_SEEN_ZERO_LEN 0x00000001
519#define REG_SEEN_LOOKBEHIND 0x00000002
520#define REG_SEEN_GPOS 0x00000004
471f5387 521/* spare */
3dab1dad 522#define REG_SEEN_CANY 0x00000010
cce850e4 523#define REG_SEEN_SANY REG_SEEN_CANY /* src bckwrd cmpt */
6bda09f9 524#define REG_SEEN_RECURSE 0x00000020
eaf3ca90 525#define REG_TOP_LEVEL_BRANCHES 0x00000040
e2e6a0f1 526#define REG_SEEN_VERBARG 0x00000080
5d458dd8 527#define REG_SEEN_CUTGROUP 0x00000100
bcdf7404 528#define REG_SEEN_RUN_ON_COMMENT 0x00000200
bb914485 529#define REG_SEEN_EXACTF_SHARP_S 0x00000400
09a65838 530#define REG_SEEN_GOSTART 0x00000800
d09b2d29 531
73c4f7a1
GS
532START_EXTERN_C
533
be8e71aa
YO
534#ifdef PLUGGABLE_RE_EXTENSION
535#include "re_nodes.h"
536#else
d09b2d29 537#include "regnodes.h"
be8e71aa 538#endif
d09b2d29 539
f9f4320a
YO
540#ifndef PLUGGABLE_RE_EXTENSION
541#ifndef DOINIT
542EXTCONST regexp_engine PL_core_reg_engine;
543#else /* DOINIT */
544EXTCONST regexp_engine PL_core_reg_engine = {
fe578d7f 545 Perl_re_compile,
2fdbfb4d 546 Perl_regexec_flags,
f9f4320a
YO
547 Perl_re_intuit_start,
548 Perl_re_intuit_string,
2fdbfb4d
AB
549 Perl_regfree_internal,
550 Perl_reg_numbered_buff_fetch,
551 Perl_reg_numbered_buff_store,
552 Perl_reg_numbered_buff_length,
192b9cd1
AB
553 Perl_reg_named_buff,
554 Perl_reg_named_buff_iter,
49d7dfbc 555 Perl_reg_qr_package,
f9f4320a 556#if defined(USE_ITHREADS)
3c13cae6 557 Perl_regdupe_internal,
f9f4320a 558#endif
3c13cae6 559 Perl_re_op_compile
f9f4320a
YO
560};
561#endif /* DOINIT */
562#endif /* PLUGGABLE_RE_EXTENSION */
563
564
73c4f7a1 565END_EXTERN_C
cad2e5aa 566
cad2e5aa 567
261faec3
MJD
568/* .what is a character array with one character for each member of .data
569 * The character describes the function of the corresponding .data item:
af534a04 570 * a - AV for paren_name_list under DEBUGGING
0111c4fd 571 * f - start-class data for regstclass optimization
68e2671b 572 * l - start op for literal (?{EVAL}) item
d63c20f2 573 * L - start op for literal (?{EVAL}) item, with separate CV (qr//)
b30fcab9 574 * r - pointer to an embedded code-containing qr, e.g. /ab$qr/
38a44b82 575 * s - swash for Unicode-style character class, and the multicharacter
9e55ce06
JH
576 * strings resulting from casefolding the single-character entries
577 * in the character class
a3621e74 578 * t - trie struct
55eed653 579 * u - trie struct's widecharmap (a HV, so can't share, must dup)
2b8b4781 580 * also used for revcharmap and words under DEBUGGING
07be1b83 581 * T - aho-trie struct
81714fb9 582 * S - sv for named capture lookup
261faec3 583 * 20010712 mjd@plover.com
c3613ed7 584 * (Remember to update re_dup() and pregfree() if you add any items.)
261faec3 585 */
cad2e5aa
JH
586struct reg_data {
587 U32 count;
588 U8 *what;
589 void* data[1];
590};
591
a1cac82e
NC
592/* Code in S_to_utf8_substr() and S_to_byte_substr() in regexec.c accesses
593 anchored* and float* via array indexes 0 and 1. */
cad2e5aa 594#define anchored_substr substrs->data[0].substr
33b8afdf 595#define anchored_utf8 substrs->data[0].utf8_substr
cad2e5aa 596#define anchored_offset substrs->data[0].min_offset
1de06328
YO
597#define anchored_end_shift substrs->data[0].end_shift
598
cad2e5aa 599#define float_substr substrs->data[1].substr
33b8afdf 600#define float_utf8 substrs->data[1].utf8_substr
cad2e5aa
JH
601#define float_min_offset substrs->data[1].min_offset
602#define float_max_offset substrs->data[1].max_offset
1de06328
YO
603#define float_end_shift substrs->data[1].end_shift
604
cad2e5aa 605#define check_substr substrs->data[2].substr
33b8afdf 606#define check_utf8 substrs->data[2].utf8_substr
cad2e5aa
JH
607#define check_offset_min substrs->data[2].min_offset
608#define check_offset_max substrs->data[2].max_offset
1de06328 609#define check_end_shift substrs->data[2].end_shift
a3621e74 610
8d919b0a
FC
611#define RX_ANCHORED_SUBSTR(rx) (ReANY(rx)->anchored_substr)
612#define RX_ANCHORED_UTF8(rx) (ReANY(rx)->anchored_utf8)
613#define RX_FLOAT_SUBSTR(rx) (ReANY(rx)->float_substr)
614#define RX_FLOAT_UTF8(rx) (ReANY(rx)->float_utf8)
a3621e74
YO
615
616/* trie related stuff */
5d9a96ca 617
a3621e74
YO
618/* a transition record for the state machine. the
619 check field determines which state "owns" the
620 transition. the char the transition is for is
621 determined by offset from the owning states base
622 field. the next field determines which state
623 is to be transitioned to if any.
624*/
625struct _reg_trie_trans {
626 U32 next;
627 U32 check;
628};
629
630/* a transition list element for the list based representation */
631struct _reg_trie_trans_list_elem {
632 U16 forid;
633 U32 newstate;
634};
635typedef struct _reg_trie_trans_list_elem reg_trie_trans_le;
636
637/* a state for compressed nodes. base is an offset
638 into an array of reg_trie_trans array. If wordnum is
639 nonzero the state is accepting. if base is zero then
640 the state has no children (and will be accepting)
641*/
642struct _reg_trie_state {
643 U16 wordnum;
644 union {
645 U32 base;
646 reg_trie_trans_le* list;
647 } trans;
648};
649
2e64971a
DM
650/* info per word; indexed by wordnum */
651typedef struct {
652 U16 prev; /* previous word in acceptance chain; eg in
653 * zzz|abc|ab/ after matching the chars abc, the
654 * accepted word is #2, and the previous accepted
655 * word is #3 */
656 U32 len; /* how many chars long is this word? */
657 U32 accept; /* accept state for this word */
658} reg_trie_wordinfo;
a3621e74
YO
659
660
a3621e74
YO
661typedef struct _reg_trie_state reg_trie_state;
662typedef struct _reg_trie_trans reg_trie_trans;
663
664
665/* anything in here that needs to be freed later
23eab42c
NC
666 should be dealt with in pregfree.
667 refcount is first in both this and _reg_ac_data to allow a space
668 optimisation in Perl_regdupe. */
a3621e74 669struct _reg_trie_data {
23eab42c 670 U32 refcount; /* number of times this trie is referenced */
786e8c11
YO
671 U32 lasttrans; /* last valid transition element */
672 U16 *charmap; /* byte to charid lookup array */
786e8c11
YO
673 reg_trie_state *states; /* state data */
674 reg_trie_trans *trans; /* array of transition elements */
675 char *bitmap; /* stclass bitmap */
786e8c11
YO
676 U16 *jump; /* optional 1 indexed array of offsets before tail
677 for the node following a given word. */
2e64971a 678 reg_trie_wordinfo *wordinfo; /* array of info per word */
1b5c067c
NC
679 U16 uniquecharcount; /* unique chars in trie (width of trans table) */
680 U32 startstate; /* initial state - used for common prefix optimisation */
681 STRLEN minlen; /* minimum length of words in trie - build/opt only? */
682 STRLEN maxlen; /* maximum length of words in trie - build/opt only? */
2e64971a 683 U32 prefixlen; /* #chars in common prefix */
1e2e3d02
YO
684 U32 statecount; /* Build only - number of states in the states array
685 (including the unused zero state) */
786e8c11 686 U32 wordcount; /* Build only */
a3621e74 687#ifdef DEBUGGING
786e8c11 688 STRLEN charcount; /* Build only */
a3621e74
YO
689#endif
690};
2b8b4781
NC
691/* There is one (3 under DEBUGGING) pointers that logically belong in this
692 structure, but are held outside as they need duplication on thread cloning,
693 whereas the rest of the structure can be read only:
694 HV *widecharmap; code points > 255 to charid
695#ifdef DEBUGGING
696 AV *words; Array of words contained in trie, for dumping
697 AV *revcharmap; Map of each charid back to its character representation
698#endif
699*/
700
701#define TRIE_WORDS_OFFSET 2
702
a3621e74
YO
703typedef struct _reg_trie_data reg_trie_data;
704
23eab42c
NC
705/* refcount is first in both this and _reg_trie_data to allow a space
706 optimisation in Perl_regdupe. */
07be1b83 707struct _reg_ac_data {
23eab42c 708 U32 refcount;
1b5c067c 709 U32 trie;
07be1b83
YO
710 U32 *fail;
711 reg_trie_state *states;
07be1b83
YO
712};
713typedef struct _reg_ac_data reg_ac_data;
714
486ec47a 715/* ANY_BIT doesn't use the structure, so we can borrow it here.
3dab1dad
YO
716 This is simpler than refactoring all of it as wed end up with
717 three different sets... */
718
719#define TRIE_BITMAP(p) (((reg_trie_data *)(p))->bitmap)
786e8c11 720#define TRIE_BITMAP_BYTE(p, c) (TRIE_BITMAP(p)[(((U8)(c)) >> 3) & 31])
5dfe062f
YO
721#define TRIE_BITMAP_SET(p, c) (TRIE_BITMAP_BYTE(p, c) |= ANYOF_BIT((U8)c))
722#define TRIE_BITMAP_CLEAR(p,c) (TRIE_BITMAP_BYTE(p, c) &= ~ANYOF_BIT((U8)c))
723#define TRIE_BITMAP_TEST(p, c) (TRIE_BITMAP_BYTE(p, c) & ANYOF_BIT((U8)c))
3dab1dad 724
1de06328
YO
725#define IS_ANYOF_TRIE(op) ((op)==TRIEC || (op)==AHOCORASICKC)
726#define IS_TRIE_AC(op) ((op)>=AHOCORASICK)
727
728
786e8c11
YO
729#define BITMAP_BYTE(p, c) (((U8*)p)[(((U8)(c)) >> 3) & 31])
730#define BITMAP_TEST(p, c) (BITMAP_BYTE(p, c) & ANYOF_BIT((U8)c))
3dab1dad 731
a3621e74
YO
732/* these defines assume uniquecharcount is the correct variable, and state may be evaluated twice */
733#define TRIE_NODENUM(state) (((state)-1)/(trie->uniquecharcount)+1)
734#define SAFE_TRIE_NODENUM(state) ((state) ? (((state)-1)/(trie->uniquecharcount)+1) : (state))
735#define TRIE_NODEIDX(state) ((state) ? (((state)-1)*(trie->uniquecharcount)+1) : (state))
736
3dab1dad 737#ifdef DEBUGGING
3dab1dad 738#define TRIE_CHARCOUNT(trie) ((trie)->charcount)
3dab1dad 739#else
3dab1dad 740#define TRIE_CHARCOUNT(trie) (trie_charcount)
3dab1dad 741#endif
a3621e74 742
0111c4fd
RGS
743#define RE_TRIE_MAXBUF_INIT 65536
744#define RE_TRIE_MAXBUF_NAME "\022E_TRIE_MAXBUF"
a3621e74
YO
745#define RE_DEBUG_FLAGS "\022E_DEBUG_FLAGS"
746
be8e71aa
YO
747/*
748
749RE_DEBUG_FLAGS is used to control what debug output is emitted
750its divided into three groups of options, some of which interact.
751The three groups are: Compile, Execute, Extra. There is room for a
752further group, as currently only the low three bytes are used.
753
754 Compile Options:
07be1b83 755
be8e71aa
YO
756 PARSE
757 PEEP
758 TRIE
759 PROGRAM
760 OFFSETS
a3621e74 761
be8e71aa 762 Execute Options:
a3621e74 763
be8e71aa
YO
764 INTUIT
765 MATCH
766 TRIE
a3621e74 767
be8e71aa 768 Extra Options
a3621e74 769
be8e71aa
YO
770 TRIE
771 OFFSETS
772
773If you modify any of these make sure you make corresponding changes to
774re.pm, especially to the documentation.
a3621e74 775
be8e71aa
YO
776*/
777
778
779/* Compile */
780#define RE_DEBUG_COMPILE_MASK 0x0000FF
781#define RE_DEBUG_COMPILE_PARSE 0x000001
782#define RE_DEBUG_COMPILE_OPTIMISE 0x000002
783#define RE_DEBUG_COMPILE_TRIE 0x000004
784#define RE_DEBUG_COMPILE_DUMP 0x000008
f7819f85 785#define RE_DEBUG_COMPILE_FLAGS 0x000010
be8e71aa
YO
786
787/* Execute */
788#define RE_DEBUG_EXECUTE_MASK 0x00FF00
789#define RE_DEBUG_EXECUTE_INTUIT 0x000100
790#define RE_DEBUG_EXECUTE_MATCH 0x000200
791#define RE_DEBUG_EXECUTE_TRIE 0x000400
792
793/* Extra */
794#define RE_DEBUG_EXTRA_MASK 0xFF0000
795#define RE_DEBUG_EXTRA_TRIE 0x010000
796#define RE_DEBUG_EXTRA_OFFSETS 0x020000
a5ca303d
YO
797#define RE_DEBUG_EXTRA_OFFDEBUG 0x040000
798#define RE_DEBUG_EXTRA_STATE 0x080000
799#define RE_DEBUG_EXTRA_OPTIMISE 0x100000
e7707071 800#define RE_DEBUG_EXTRA_BUFFERS 0x400000
2c296965 801#define RE_DEBUG_EXTRA_GPOS 0x800000
24b23f37
YO
802/* combined */
803#define RE_DEBUG_EXTRA_STACK 0x280000
be8e71aa 804
e68ec53f 805#define RE_DEBUG_FLAG(x) (re_debug_flags & x)
be8e71aa
YO
806/* Compile */
807#define DEBUG_COMPILE_r(x) DEBUG_r( \
e68ec53f 808 if (re_debug_flags & RE_DEBUG_COMPILE_MASK) x )
be8e71aa 809#define DEBUG_PARSE_r(x) DEBUG_r( \
e68ec53f 810 if (re_debug_flags & RE_DEBUG_COMPILE_PARSE) x )
be8e71aa 811#define DEBUG_OPTIMISE_r(x) DEBUG_r( \
e68ec53f 812 if (re_debug_flags & RE_DEBUG_COMPILE_OPTIMISE) x )
be8e71aa 813#define DEBUG_PARSE_r(x) DEBUG_r( \
e68ec53f 814 if (re_debug_flags & RE_DEBUG_COMPILE_PARSE) x )
be8e71aa 815#define DEBUG_DUMP_r(x) DEBUG_r( \
e68ec53f 816 if (re_debug_flags & RE_DEBUG_COMPILE_DUMP) x )
be8e71aa 817#define DEBUG_TRIE_COMPILE_r(x) DEBUG_r( \
e68ec53f 818 if (re_debug_flags & RE_DEBUG_COMPILE_TRIE) x )
f7819f85
A
819#define DEBUG_FLAGS_r(x) DEBUG_r( \
820 if (re_debug_flags & RE_DEBUG_COMPILE_FLAGS) x )
be8e71aa
YO
821/* Execute */
822#define DEBUG_EXECUTE_r(x) DEBUG_r( \
e68ec53f 823 if (re_debug_flags & RE_DEBUG_EXECUTE_MASK) x )
be8e71aa 824#define DEBUG_INTUIT_r(x) DEBUG_r( \
e68ec53f 825 if (re_debug_flags & RE_DEBUG_EXECUTE_INTUIT) x )
be8e71aa 826#define DEBUG_MATCH_r(x) DEBUG_r( \
e68ec53f 827 if (re_debug_flags & RE_DEBUG_EXECUTE_MATCH) x )
be8e71aa 828#define DEBUG_TRIE_EXECUTE_r(x) DEBUG_r( \
e68ec53f 829 if (re_debug_flags & RE_DEBUG_EXECUTE_TRIE) x )
be8e71aa
YO
830
831/* Extra */
832#define DEBUG_EXTRA_r(x) DEBUG_r( \
e68ec53f 833 if (re_debug_flags & RE_DEBUG_EXTRA_MASK) x )
a5ca303d
YO
834#define DEBUG_OFFSETS_r(x) DEBUG_r( \
835 if (re_debug_flags & RE_DEBUG_EXTRA_OFFSETS) x )
ab3bbdeb
YO
836#define DEBUG_STATE_r(x) DEBUG_r( \
837 if (re_debug_flags & RE_DEBUG_EXTRA_STATE) x )
24b23f37
YO
838#define DEBUG_STACK_r(x) DEBUG_r( \
839 if (re_debug_flags & RE_DEBUG_EXTRA_STACK) x )
e7707071
YO
840#define DEBUG_BUFFERS_r(x) DEBUG_r( \
841 if (re_debug_flags & RE_DEBUG_EXTRA_BUFFERS) x )
842
a5ca303d
YO
843#define DEBUG_OPTIMISE_MORE_r(x) DEBUG_r( \
844 if ((RE_DEBUG_EXTRA_OPTIMISE|RE_DEBUG_COMPILE_OPTIMISE) == \
845 (re_debug_flags & (RE_DEBUG_EXTRA_OPTIMISE|RE_DEBUG_COMPILE_OPTIMISE)) ) x )
07be1b83 846#define MJD_OFFSET_DEBUG(x) DEBUG_r( \
a5ca303d 847 if (re_debug_flags & RE_DEBUG_EXTRA_OFFDEBUG) \
be8e71aa
YO
848 Perl_warn_nocontext x )
849#define DEBUG_TRIE_COMPILE_MORE_r(x) DEBUG_TRIE_COMPILE_r( \
e68ec53f 850 if (re_debug_flags & RE_DEBUG_EXTRA_TRIE) x )
be8e71aa 851#define DEBUG_TRIE_EXECUTE_MORE_r(x) DEBUG_TRIE_EXECUTE_r( \
e68ec53f 852 if (re_debug_flags & RE_DEBUG_EXTRA_TRIE) x )
be8e71aa
YO
853
854#define DEBUG_TRIE_r(x) DEBUG_r( \
e68ec53f 855 if (re_debug_flags & (RE_DEBUG_COMPILE_TRIE \
be8e71aa 856 | RE_DEBUG_EXECUTE_TRIE )) x )
2c296965
YO
857#define DEBUG_GPOS_r(x) DEBUG_r( \
858 if (re_debug_flags & RE_DEBUG_EXTRA_GPOS) x )
be8e71aa
YO
859
860/* initialization */
d2d8c711 861/* get_sv() can return NULL during global destruction. */
e68ec53f
YO
862#define GET_RE_DEBUG_FLAGS DEBUG_r({ \
863 SV * re_debug_flags_sv = NULL; \
864 re_debug_flags_sv = get_sv(RE_DEBUG_FLAGS, 1); \
865 if (re_debug_flags_sv) { \
8e9a8a48 866 if (!SvIOK(re_debug_flags_sv)) \
e68ec53f 867 sv_setuv(re_debug_flags_sv, RE_DEBUG_COMPILE_DUMP | RE_DEBUG_EXECUTE_MASK ); \
8e9a8a48 868 re_debug_flags=SvIV(re_debug_flags_sv); \
e68ec53f
YO
869 }\
870})
a3621e74
YO
871
872#ifdef DEBUGGING
ab3bbdeb 873
cb65b687
DM
874#define GET_RE_DEBUG_FLAGS_DECL VOL IV re_debug_flags = 0; \
875 PERL_UNUSED_VAR(re_debug_flags); GET_RE_DEBUG_FLAGS;
ab3bbdeb
YO
876
877#define RE_PV_COLOR_DECL(rpv,rlen,isuni,dsv,pv,l,m,c1,c2) \
878 const char * const rpv = \
ddc5bc0f 879 pv_pretty((dsv), (pv), (l), (m), \
ab3bbdeb 880 PL_colors[(c1)],PL_colors[(c2)], \
c89df6cf 881 PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII |((isuni) ? PERL_PV_ESCAPE_UNI : 0) ); \
0df25f3d 882 const int rlen = SvCUR(dsv)
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883
884#define RE_SV_ESCAPE(rpv,isuni,dsv,sv,m) \
885 const char * const rpv = \
ddc5bc0f 886 pv_pretty((dsv), (SvPV_nolen_const(sv)), (SvCUR(sv)), (m), \
ab3bbdeb 887 PL_colors[(c1)],PL_colors[(c2)], \
c89df6cf 888 PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII |((isuni) ? PERL_PV_ESCAPE_UNI : 0) )
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889
890#define RE_PV_QUOTED_DECL(rpv,isuni,dsv,pv,l,m) \
891 const char * const rpv = \
ddc5bc0f 892 pv_pretty((dsv), (pv), (l), (m), \
ab3bbdeb 893 PL_colors[0], PL_colors[1], \
c89df6cf 894 ( PERL_PV_PRETTY_QUOTE | PERL_PV_ESCAPE_RE | PERL_PV_ESCAPE_NONASCII | PERL_PV_PRETTY_ELLIPSES | \
ab3bbdeb 895 ((isuni) ? PERL_PV_ESCAPE_UNI : 0)) \
0a0e9afc 896 )
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897
898#define RE_SV_DUMPLEN(ItEm) (SvCUR(ItEm) - (SvTAIL(ItEm)!=0))
899#define RE_SV_TAIL(ItEm) (SvTAIL(ItEm) ? "$" : "")
900
901#else /* if not DEBUGGING */
902
a3621e74 903#define GET_RE_DEBUG_FLAGS_DECL
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904#define RE_PV_COLOR_DECL(rpv,rlen,isuni,dsv,pv,l,m,c1,c2)
905#define RE_SV_ESCAPE(rpv,isuni,dsv,sv,m)
906#define RE_PV_QUOTED_DECL(rpv,isuni,dsv,pv,l,m)
907#define RE_SV_DUMPLEN(ItEm)
908#define RE_SV_TAIL(ItEm)
909
910#endif /* DEBUG RELATED DEFINES */
a3621e74 911
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912/*
913 * Local variables:
914 * c-indentation-style: bsd
915 * c-basic-offset: 4
14d04a33 916 * indent-tabs-mode: nil
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917 * End:
918 *
14d04a33 919 * ex: set ts=8 sts=4 sw=4 et:
e9a8c099 920 */