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a0d0e21 perl 5.000
Larry Wall authored
1 /* regcomp.h
d637624 jhi Sprinkle some copyrights (use the oldest timestamp to
jhi authored
2 *
4bb101f jhi Fix up Larry's copyright statements to my best knowledge.
jhi authored
3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
663f364 Fix up copyright years for files modified in 2007.
Nicholas Clark authored
4 * 2000, 2001, 2002, 2003, 2005, 2006, 2007, by Larry Wall and others
d637624 jhi Sprinkle some copyrights (use the oldest timestamp to
jhi authored
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 *
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
9 */
e1d1eef Yves Orton Change meaning of \v, \V, and add \h, \H to match Perl6, add \R to match...
demerphq authored
10 #include "regcharclass.h"
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
11
c277df4 Jumbo regexp patch applied (with minor fix-up tweaks):
Ilya Zakharevich authored
12 typedef OP OP_4tree; /* Will be redefined later. */
13
07be1b8 Yves Orton Re: [PATCH] Better version of the Aho-Corasick patch and lots of benchma...
demerphq authored
14
58e23c8 Yves Orton \G with /g results in infinite loop in 5.6 and later
demerphq authored
15 /* Convert branch sequences to more efficient trie ops? */
07be1b8 Yves Orton Re: [PATCH] Better version of the Aho-Corasick patch and lots of benchma...
demerphq authored
16 #define PERL_ENABLE_TRIE_OPTIMISATION 1
58e23c8 Yves Orton \G with /g results in infinite loop in 5.6 and later
demerphq authored
17
18 /* Be really agressive about optimising patterns with trie sequences? */
07be1b8 Yves Orton Re: [PATCH] Better version of the Aho-Corasick patch and lots of benchma...
demerphq authored
19 #define PERL_ENABLE_EXTENDED_TRIE_OPTIMISATION 1
58e23c8 Yves Orton \G with /g results in infinite loop in 5.6 and later
demerphq authored
20
da7fcca Yves Orton create new unicode props as defined in POSIX spec (optionally use them i...
demerphq authored
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.
ba9ac17 Yves Orton set PERL_LEGACY_UNICODE_CHARCLASS_MAPPINGS to 0 and enable proper POSIX ...
demerphq authored
34 * XXX: It is now enabled for 5.11/5.12
da7fcca Yves Orton create new unicode props as defined in POSIX spec (optionally use them i...
demerphq authored
35 *
36 * -demerphq
37 */
2e84be6 Yves Orton revert to 5.8.x semantics for \s \w and \d
demerphq authored
38 #define PERL_LEGACY_UNICODE_CHARCLASS_MAPPINGS 1
da7fcca Yves Orton create new unicode props as defined in POSIX spec (optionally use them i...
demerphq authored
39
58e23c8 Yves Orton \G with /g results in infinite loop in 5.6 and later
demerphq authored
40 /* Should the optimiser take positive assertions into account? */
68ba3a3 Yves Orton Disable positive lookaround optimisations
demerphq authored
41 #define PERL_ENABLE_POSITIVE_ASSERTION_STUDY 0
58e23c8 Yves Orton \G with /g results in infinite loop in 5.6 and later
demerphq authored
42
43 /* Not for production use: */
07be1b8 Yves Orton Re: [PATCH] Better version of the Aho-Corasick patch and lots of benchma...
demerphq authored
44 #define PERL_ENABLE_EXPERIMENTAL_REGEX_OPTIMISATIONS 0
58e23c8 Yves Orton \G with /g results in infinite loop in 5.6 and later
demerphq authored
45
7122b23 Yves Orton Make offsets support conditional
demerphq authored
46 /* Activate offsets code - set to if 1 to enable */
47 #ifdef DEBUGGING
48 #define RE_TRACK_PATTERN_OFFSETS
49 #endif
50
b9b4ddd Yves Orton Add possessive quantifiers to regex engine.
demerphq authored
51 /* Unless the next line is uncommented it is illegal to combine lazy
52 matching with possessive matching. Frankly it doesn't make much sense
53 to allow it as X*?+ matches nothing, X+?+ matches a single char only,
54 and X{min,max}?+ matches min times only.
55 */
56 /* #define REG_ALLOW_MINMOD_SUSPEND */
07be1b8 Yves Orton Re: [PATCH] Better version of the Aho-Corasick patch and lots of benchma...
demerphq authored
57
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
58 /*
59 * The "internal use only" fields in regexp.h are present to pass info from
60 * compile to execute that permits the execute phase to run lots faster on
61 * simple cases. They are:
62 *
bd61b36 Re: [PATCH] s/Null(av|ch)/NULL/g
Steven Schubiger authored
63 * regstart sv that must begin a match; NULL if none obvious
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
64 * reganch is the match anchored (at beginning-of-line only)?
65 * regmust string (pointer into program) that match must include, or NULL
7907280 perl 5.0 alpha 2
Larry Wall authored
66 * [regmust changed to SV* for bminstr()--law]
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
67 * regmlen length of regmust string
68 * [regmlen not used currently]
69 *
70 * Regstart and reganch permit very fast decisions on suitable starting points
71 * for a match, cutting down the work a lot. Regmust permits fast rejection
72 * of lines that cannot possibly match. The regmust tests are costly enough
e50aee7 This is my patch patch.1m for perl5.001.
Andy Dougherty authored
73 * that pregcomp() supplies a regmust only if the r.e. contains something
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
74 * potentially expensive (at present, the only such thing detected is * or +
75 * at the start of the r.e., which can involve a lot of backup). Regmlen is
e50aee7 This is my patch patch.1m for perl5.001.
Andy Dougherty authored
76 * supplied because the test in pregexec() needs it and pregcomp() is computing
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
77 * it anyway.
78 * [regmust is now supplied always. The tests that use regmust have a
79 * heuristic that disables the test if it usually matches.]
80 *
81 * [In fact, we now use regmust in many cases to locate where the search
82 * starts in the string, so if regback is >= 0, the regmust search is never
83 * wasted effort. The regback variable says how many characters back from
84 * where regmust matched is the earliest possible start of the match.
85 * For instance, /[a-z].foo/ has a regmust of 'foo' and a regback of 2.]
86 */
87
88 /*
89 * Structure for regexp "program". This is essentially a linear encoding
90 * of a nondeterministic finite-state machine (aka syntax charts or
91 * "railroad normal form" in parsing technology). Each node is an opcode
92 * plus a "next" pointer, possibly plus an operand. "Next" pointers of
93 * all nodes except BRANCH implement concatenation; a "next" pointer with
94 * a BRANCH on both ends of it is connecting two alternatives. (Here we
95 * have one of the subtle syntax dependencies: an individual BRANCH (as
96 * opposed to a collection of them) is never concatenated with anything
97 * because of operator precedence.) The operand of some types of node is
98 * a literal string; for others, it is a node leading into a sub-FSM. In
99 * particular, the operand of a BRANCH node is the first node of the branch.
100 * (NB this is *not* a tree structure: the tail of the branch connects
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
101 * to the thing following the set of BRANCHes.) The opcodes are defined
102 * in regnodes.h which is generated from regcomp.sym by regcomp.pl.
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
103 */
104
105 /*
106 * A node is one char of opcode followed by two chars of "next" pointer.
107 * "Next" pointers are stored as two 8-bit pieces, high order first. The
108 * value is a positive offset from the opcode of the node containing it.
109 * An operand, if any, simply follows the node. (Note that much of the
110 * code generation knows about this implicit relationship.)
111 *
112 * Using two bytes for the "next" pointer is vast overkill for most things,
113 * but allows patterns to get big without disasters.
114 *
e91177e applied patch, with indentation tweaks
Ilya Zakharevich authored
115 * [The "next" pointer is always aligned on an even
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
116 * boundary, and reads the offset directly as a short. Also, there is no
117 * special test to reverse the sign of BACK pointers since the offset is
118 * stored negative.]
119 */
785a26d Yves Orton Further tweaks to make it easier to create regexp engine plug ins.
demerphq authored
120
121 /* This is the stuff that used to live in regexp.h that was truly
122 private to the engine itself. It now lives here. */
123
28d8d7f Yves Orton Resolve PL_curpm issues with (??{}) and fix corruption of match results ...
demerphq authored
124
785a26d Yves Orton Further tweaks to make it easier to create regexp engine plug ins.
demerphq authored
125
126 typedef struct regexp_internal {
1f1031f Yves Orton Re: Named-capture regex syntax
demerphq authored
127 int name_list_idx; /* Optional data index of an array of paren names */
7122b23 Yves Orton Make offsets support conditional
demerphq authored
128 union {
129 U32 *offsets; /* offset annotations 20001228 MJD
130 data about mapping the program to the
131 string -
132 offsets[0] is proglen when this is used
133 */
134 U32 proglen;
135 } u;
136
6d5c990 Rafael Garcia-Suarez Better version of last patch, by Yves Orton.
rgs authored
137 regnode *regstclass; /* Optional startclass as identified or constructed
138 by the optimiser */
139 struct reg_data *data; /* Additional miscellaneous data used by the program.
140 Used to make it easier to clone and free arbitrary
141 data that the regops need. Often the ARG field of
142 a regop is an index into this structure */
143 regnode program[1]; /* Unwarranted chumminess with compiler. */
144 } regexp_internal;
145
146 #define RXi_SET(x,y) (x)->pprivate = (void*)(y)
147 #define RXi_GET(x) ((regexp_internal *)((x)->pprivate))
148 #define RXi_GET_DECL(r,ri) regexp_internal *ri = RXi_GET(r)
785a26d Yves Orton Further tweaks to make it easier to create regexp engine plug ins.
demerphq authored
149 /*
150 * Flags stored in regexp->intflags
151 * These are used only internally to the regexp engine
152 *
153 * See regexp.h for flags used externally to the regexp engine
154 */
155 #define PREGf_SKIP 0x00000001
156 #define PREGf_IMPLICIT 0x00000002 /* Converted .* to ^.* */
157 #define PREGf_NAUGHTY 0x00000004 /* how exponential is this pattern? */
158 #define PREGf_VERBARG_SEEN 0x00000008
159 #define PREGf_CUTGROUP_SEEN 0x00000010
160
161
162 /* this is where the old regcomp.h started */
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
163
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Ilya Zakharevich authored
164 struct regnode_string {
cd439c5 Clarify RE engine code; inline a static function to a macro;
Ilya Zakharevich authored
165 U8 str_len;
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Ilya Zakharevich authored
166 U8 type;
167 U16 next_off;
cd439c5 Clarify RE engine code; inline a static function to a macro;
Ilya Zakharevich authored
168 char string[1];
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Ilya Zakharevich authored
169 };
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
170
6bda09f Yves Orton Re: [PATCH] Add recursive regexes similar to PCRE
demerphq authored
171 /* Argument bearing node - workhorse,
172 arg1 is often for the data field */
c277df4 Jumbo regexp patch applied (with minor fix-up tweaks):
Ilya Zakharevich authored
173 struct regnode_1 {
174 U8 flags;
175 U8 type;
176 U16 next_off;
177 U32 arg1;
178 };
179
6bda09f Yves Orton Re: [PATCH] Add recursive regexes similar to PCRE
demerphq authored
180 /* Similar to a regnode_1 but with an extra signed argument */
181 struct regnode_2L {
182 U8 flags;
183 U8 type;
184 U16 next_off;
185 U32 arg1;
186 I32 arg2;
187 };
188
189 /* 'Two field' -- Two 16 bit unsigned args */
c277df4 Jumbo regexp patch applied (with minor fix-up tweaks):
Ilya Zakharevich authored
190 struct regnode_2 {
191 U8 flags;
192 U8 type;
193 U16 next_off;
194 U16 arg1;
195 U16 arg2;
196 };
197
6bda09f Yves Orton Re: [PATCH] Add recursive regexes similar to PCRE
demerphq authored
198
936ed89 Remove the last regnode<==>char*
Ilya Zakharevich authored
199 #define ANYOF_BITMAP_SIZE 32 /* 256 b/(8 b/B) */
d1eb317 Yves Orton somewhat fix failing regex tests. but break lots of other stuff at the s...
demerphq authored
200 #define ANYOF_CLASSBITMAP_SIZE 4 /* up to 32 (8*4) named classes */
936ed89 Remove the last regnode<==>char*
Ilya Zakharevich authored
201
786e8c1 Yves Orton Re: [PATCH] Trie jumping
demerphq authored
202 /* also used by trie */
936ed89 Remove the last regnode<==>char*
Ilya Zakharevich authored
203 struct regnode_charclass {
204 U8 flags;
205 U8 type;
206 U16 next_off;
bf3f2d8 regcomp.h: Clean up some comments
Karl Williamson authored
207 U32 arg1; /* used as ptr in S_regclass */
19103b9 jhi Document ANYOF_CLASS.
jhi authored
208 char bitmap[ANYOF_BITMAP_SIZE]; /* only compile-time */
936ed89 Remove the last regnode<==>char*
Ilya Zakharevich authored
209 };
210
bf3f2d8 regcomp.h: Clean up some comments
Karl Williamson authored
211 /* has runtime (locale) \d, \w, ..., [:posix:] classes */
212 struct regnode_charclass_class {
213 U8 flags; /* ANYOF_CLASS bit must go here */
936ed89 Remove the last regnode<==>char*
Ilya Zakharevich authored
214 U8 type;
215 U16 next_off;
bf3f2d8 regcomp.h: Clean up some comments
Karl Williamson authored
216 U32 arg1; /* used as ptr in S_regclass */
19103b9 jhi Document ANYOF_CLASS.
jhi authored
217 char bitmap[ANYOF_BITMAP_SIZE]; /* both compile-time */
218 char classflags[ANYOF_CLASSBITMAP_SIZE]; /* and run-time */
936ed89 Remove the last regnode<==>char*
Ilya Zakharevich authored
219 };
220
9c7e81e make REG_INFTY default to something saner when sizeof(short) > 2
Andy Dougherty authored
221 /* XXX fix this description.
222 Impose a limit of REG_INFTY on various pattern matching operations
223 to limit stack growth and to avoid "infinite" recursions.
224 */
225 /* The default size for REG_INFTY is I16_MAX, which is the same as
226 SHORT_MAX (see perl.h). Unfortunately I16 isn't necessarily 16 bits
227 (see handy.h). On the Cray C90, sizeof(short)==4 and hence I16_MAX is
228 ((1<<31)-1), while on the Cray T90, sizeof(short)==8 and I16_MAX is
229 ((1<<63)-1). To limit stack growth to reasonable sizes, supply a
230 smaller default.
231 --Andy Dougherty 11 June 1998
232 */
233 #if SHORTSIZE > 2
234 # ifndef REG_INFTY
235 # define REG_INFTY ((1<<15)-1)
236 # endif
237 #endif
238
239 #ifndef REG_INFTY
83cfe48 Re: [PATCH 5.004_66] REG_INFTY patch corrected
Ilya Zakharevich authored
240 # define REG_INFTY I16_MAX
241 #endif
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
242
e91177e applied patch, with indentation tweaks
Ilya Zakharevich authored
243 #define ARG_VALUE(arg) (arg)
244 #define ARG__SET(arg,val) ((arg) = (val))
c277df4 Jumbo regexp patch applied (with minor fix-up tweaks):
Ilya Zakharevich authored
245
e8e3b0f jhi Add preemptive #undefs for some of the shorter and more prone
jhi authored
246 #undef ARG
247 #undef ARG1
248 #undef ARG2
249
c277df4 Jumbo regexp patch applied (with minor fix-up tweaks):
Ilya Zakharevich authored
250 #define ARG(p) ARG_VALUE(ARG_LOC(p))
251 #define ARG1(p) ARG_VALUE(ARG1_LOC(p))
252 #define ARG2(p) ARG_VALUE(ARG2_LOC(p))
6bda09f Yves Orton Re: [PATCH] Add recursive regexes similar to PCRE
demerphq authored
253 #define ARG2L(p) ARG_VALUE(ARG2L_LOC(p))
786e8c1 Yves Orton Re: [PATCH] Trie jumping
demerphq authored
254
c277df4 Jumbo regexp patch applied (with minor fix-up tweaks):
Ilya Zakharevich authored
255 #define ARG_SET(p, val) ARG__SET(ARG_LOC(p), (val))
256 #define ARG1_SET(p, val) ARG__SET(ARG1_LOC(p), (val))
257 #define ARG2_SET(p, val) ARG__SET(ARG2_LOC(p), (val))
6bda09f Yves Orton Re: [PATCH] Add recursive regexes similar to PCRE
demerphq authored
258 #define ARG2L_SET(p, val) ARG__SET(ARG2L_LOC(p), (val))
c277df4 Jumbo regexp patch applied (with minor fix-up tweaks):
Ilya Zakharevich authored
259
e8e3b0f jhi Add preemptive #undefs for some of the shorter and more prone
jhi authored
260 #undef NEXT_OFF
261 #undef NODE_ALIGN
262
075abff Andy Lester Updated lint infrastructure
petdance authored
263 #define NEXT_OFF(p) ((p)->next_off)
264 #define NODE_ALIGN(node)
265 #define NODE_ALIGN_FILL(node) ((node)->flags = 0xde) /* deadbeef */
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
266
c277df4 Jumbo regexp patch applied (with minor fix-up tweaks):
Ilya Zakharevich authored
267 #define SIZE_ALIGN NODE_ALIGN
268
e8e3b0f jhi Add preemptive #undefs for some of the shorter and more prone
jhi authored
269 #undef OP
270 #undef OPERAND
271 #undef MASK
272 #undef STRING
273
e91177e applied patch, with indentation tweaks
Ilya Zakharevich authored
274 #define OP(p) ((p)->type)
bf3f2d8 regcomp.h: Clean up some comments
Karl Williamson authored
275 #define FLAGS(p) ((p)->flags) /* Caution: Doesn't apply to all \
b4eac3b Subject: regcomp.h: Add macro to get regnode flags
Karl Williamson authored
276 regnode types */
e91177e applied patch, with indentation tweaks
Ilya Zakharevich authored
277 #define OPERAND(p) (((struct regnode_string *)p)->string)
cd439c5 Clarify RE engine code; inline a static function to a macro;
Ilya Zakharevich authored
278 #define MASK(p) ((char*)OPERAND(p))
279 #define STR_LEN(p) (((struct regnode_string *)p)->str_len)
280 #define STRING(p) (((struct regnode_string *)p)->string)
281 #define STR_SZ(l) ((l + sizeof(regnode) - 1) / sizeof(regnode))
282 #define NODE_SZ_STR(p) (STR_SZ(STR_LEN(p))+1)
283
e8e3b0f jhi Add preemptive #undefs for some of the shorter and more prone
jhi authored
284 #undef NODE_ALIGN
285 #undef ARG_LOC
286 #undef NEXTOPER
287 #undef PREVOPER
288
e91177e applied patch, with indentation tweaks
Ilya Zakharevich authored
289 #define NODE_ALIGN(node)
290 #define ARG_LOC(p) (((struct regnode_1 *)p)->arg1)
291 #define ARG1_LOC(p) (((struct regnode_2 *)p)->arg1)
292 #define ARG2_LOC(p) (((struct regnode_2 *)p)->arg2)
6bda09f Yves Orton Re: [PATCH] Add recursive regexes similar to PCRE
demerphq authored
293 #define ARG2L_LOC(p) (((struct regnode_2L *)p)->arg2)
786e8c1 Yves Orton Re: [PATCH] Trie jumping
demerphq authored
294
e91177e applied patch, with indentation tweaks
Ilya Zakharevich authored
295 #define NODE_STEP_REGNODE 1 /* sizeof(regnode)/sizeof(regnode) */
296 #define EXTRA_STEP_2ARGS EXTRA_SIZE(struct regnode_2)
297
298 #define NODE_STEP_B 4
c277df4 Jumbo regexp patch applied (with minor fix-up tweaks):
Ilya Zakharevich authored
299
300 #define NEXTOPER(p) ((p) + NODE_STEP_REGNODE)
301 #define PREVOPER(p) ((p) - NODE_STEP_REGNODE)
302
e91177e applied patch, with indentation tweaks
Ilya Zakharevich authored
303 #define FILL_ADVANCE_NODE(ptr, op) STMT_START { \
c277df4 Jumbo regexp patch applied (with minor fix-up tweaks):
Ilya Zakharevich authored
304 (ptr)->type = op; (ptr)->next_off = 0; (ptr)++; } STMT_END
e91177e applied patch, with indentation tweaks
Ilya Zakharevich authored
305 #define FILL_ADVANCE_NODE_ARG(ptr, op, arg) STMT_START { \
c277df4 Jumbo regexp patch applied (with minor fix-up tweaks):
Ilya Zakharevich authored
306 ARG_SET(ptr, arg); FILL_ADVANCE_NODE(ptr, op); (ptr) += 1; } STMT_END
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
307
22c35a8 phase 1 of somewhat major rearrangement of PERL_OBJECT stuff
Gurusamy Sarathy authored
308 #define REG_MAGIC 0234
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
309
830247a [PATCH 5.7.0] make regcomp reenterable
Ilya Zakharevich authored
310 #define SIZE_ONLY (RExC_emit == &PL_regdummy)
c277df4 Jumbo regexp patch applied (with minor fix-up tweaks):
Ilya Zakharevich authored
311
a12cf05 Subject: [perl #58182] partial: Add uni \s,\w matching
Karl Williamson authored
312 /* Flags for node->flags of several of the node types */
313 #define USE_UNI 0x01
314
936ed89 Remove the last regnode<==>char*
Ilya Zakharevich authored
315 /* Flags for node->flags of ANYOF */
b8c5462 jhi POSIX [[:character class:]] support for standard, locale,
jhi authored
316
ffc61ed jhi Polymorphic regexps.
jhi authored
317 #define ANYOF_LOCALE 0x01
1984f6a regcomp.h: Reorder statements for clarity
Karl Williamson authored
318 #define ANYOF_FOLD 0x02
319 #define ANYOF_INVERT 0x04
320
321 /* CLASS is never set unless LOCALE is too: has runtime \d, \w, [:posix:], ... */
1eb41b0 regcomp.h: Restore separate bit for LOC class
Karl Williamson authored
322 #define ANYOF_CLASS 0x08
1984f6a regcomp.h: Reorder statements for clarity
Karl Williamson authored
323 #define ANYOF_LARGE ANYOF_CLASS /* Same; name retained for back compat */
b8c5462 jhi POSIX [[:character class:]] support for standard, locale,
jhi authored
324
ef87b81 Split ANYOF_NONBITMAP into two components
Karl Williamson authored
325 /* Can match something outside the bitmap that is expressible only in utf8 */
326 #define ANYOF_UTF8 0x10
327
328 /* Can match something outside the bitmap that isn't in utf8 */
329 #define ANYOF_NONBITMAP_NON_UTF8 0x20
330
3ff7ceb rename ANYOF_UNICODE to ANYOF_NONBITMAP
Karl Williamson authored
331 /* Set if the bitmap doesn't fully represent what this node can match */
ef87b81 Split ANYOF_NONBITMAP into two components
Karl Williamson authored
332 #define ANYOF_NONBITMAP (ANYOF_UTF8|ANYOF_NONBITMAP_NON_UTF8)
3ff7ceb rename ANYOF_UNICODE to ANYOF_NONBITMAP
Karl Williamson authored
333 #define ANYOF_UNICODE ANYOF_NONBITMAP /* old name, for back compat */
334
61ef987 regcomp.h: Add comment
Karl Williamson authored
335 /* Matches every code point 0x100 and above*/
336 #define ANYOF_UNICODE_ALL 0x40
ffc61ed jhi Polymorphic regexps.
jhi authored
337
2bb1f15 regcomp.h: Renumber ANYOF_EOS bit
Karl Williamson authored
338 /* EOS used for regstclass only */
339 #define ANYOF_EOS 0x80 /* Can match an empty string too */
340
ffc61ed jhi Polymorphic regexps.
jhi authored
341 #define ANYOF_FLAGS_ALL 0xff
653099f apply change#4618 again along with Ilya's patch to fix bugs
Gurusamy Sarathy authored
342
936ed89 Remove the last regnode<==>char*
Ilya Zakharevich authored
343 /* Character classes for node->classflags of ANYOF */
653099f apply change#4618 again along with Ilya's patch to fix bugs
Gurusamy Sarathy authored
344 /* Should be synchronized with a table in regprop() */
345 /* 2n should pair with 2n+1 */
b8c5462 jhi POSIX [[:character class:]] support for standard, locale,
jhi authored
346
289d4f0 Fix for
Marc Lehmann authored
347 #define ANYOF_ALNUM 0 /* \w, PL_utf8_alnum, utf8::IsWord, ALNUM */
b8c5462 jhi POSIX [[:character class:]] support for standard, locale,
jhi authored
348 #define ANYOF_NALNUM 1
aaa51d5 Add [[:blank:]] as suggested in
Jeffrey Friedl authored
349 #define ANYOF_SPACE 2 /* \s */
b8c5462 jhi POSIX [[:character class:]] support for standard, locale,
jhi authored
350 #define ANYOF_NSPACE 3
24d786f Yves Orton Various changes to regex diagnostics and testing
demerphq authored
351 #define ANYOF_DIGIT 4 /* \d */
b8c5462 jhi POSIX [[:character class:]] support for standard, locale,
jhi authored
352 #define ANYOF_NDIGIT 5
24d786f Yves Orton Various changes to regex diagnostics and testing
demerphq authored
353 #define ANYOF_ALNUMC 6 /* [[:alnum:]] isalnum(3), utf8::IsAlnum, ALNUMC */
b8c5462 jhi POSIX [[:character class:]] support for standard, locale,
jhi authored
354 #define ANYOF_NALNUMC 7
355 #define ANYOF_ALPHA 8
356 #define ANYOF_NALPHA 9
357 #define ANYOF_ASCII 10
358 #define ANYOF_NASCII 11
359 #define ANYOF_CNTRL 12
360 #define ANYOF_NCNTRL 13
361 #define ANYOF_GRAPH 14
362 #define ANYOF_NGRAPH 15
363 #define ANYOF_LOWER 16
364 #define ANYOF_NLOWER 17
365 #define ANYOF_PRINT 18
366 #define ANYOF_NPRINT 19
367 #define ANYOF_PUNCT 20
368 #define ANYOF_NPUNCT 21
369 #define ANYOF_UPPER 22
370 #define ANYOF_NUPPER 23
371 #define ANYOF_XDIGIT 24
372 #define ANYOF_NXDIGIT 25
aaa51d5 Add [[:blank:]] as suggested in
Jeffrey Friedl authored
373 #define ANYOF_PSXSPC 26 /* POSIX space: \s plus the vertical tab */
374 #define ANYOF_NPSXSPC 27
ffc61ed jhi Polymorphic regexps.
jhi authored
375 #define ANYOF_BLANK 28 /* GNU extension: space and tab: non-vertical space */
289d4f0 Fix for
Marc Lehmann authored
376 #define ANYOF_NBLANK 29
b8c5462 jhi POSIX [[:character class:]] support for standard, locale,
jhi authored
377
aaa51d5 Add [[:blank:]] as suggested in
Jeffrey Friedl authored
378 #define ANYOF_MAX 32
b8c5462 jhi POSIX [[:character class:]] support for standard, locale,
jhi authored
379
e1d1eef Yves Orton Change meaning of \v, \V, and add \h, \H to match Perl6, add \R to match...
demerphq authored
380 /* pseudo classes, not stored in the class bitmap, but used as flags
381 during compilation of char classes */
382
383 #define ANYOF_VERTWS (ANYOF_MAX+1)
384 #define ANYOF_NVERTWS (ANYOF_MAX+2)
385 #define ANYOF_HORIZWS (ANYOF_MAX+3)
386 #define ANYOF_NHORIZWS (ANYOF_MAX+4)
387
b8c5462 jhi POSIX [[:character class:]] support for standard, locale,
jhi authored
388 /* Backward source code compatibility. */
389
390 #define ANYOF_ALNUML ANYOF_ALNUM
391 #define ANYOF_NALNUML ANYOF_NALNUM
392 #define ANYOF_SPACEL ANYOF_SPACE
393 #define ANYOF_NSPACEL ANYOF_NSPACE
394
395 /* Utility macros for the bitmap and classes of ANYOF */
396
936ed89 Remove the last regnode<==>char*
Ilya Zakharevich authored
397 #define ANYOF_SIZE (sizeof(struct regnode_charclass))
398 #define ANYOF_CLASS_SIZE (sizeof(struct regnode_charclass_class))
b8c5462 jhi POSIX [[:character class:]] support for standard, locale,
jhi authored
399
936ed89 Remove the last regnode<==>char*
Ilya Zakharevich authored
400 #define ANYOF_FLAGS(p) ((p)->flags)
b8c5462 jhi POSIX [[:character class:]] support for standard, locale,
jhi authored
401
402 #define ANYOF_BIT(c) (1 << ((c) & 7))
403
936ed89 Remove the last regnode<==>char*
Ilya Zakharevich authored
404 #define ANYOF_CLASS_BYTE(p, c) (((struct regnode_charclass_class*)(p))->classflags[((c) >> 3) & 3])
b8c5462 jhi POSIX [[:character class:]] support for standard, locale,
jhi authored
405 #define ANYOF_CLASS_SET(p, c) (ANYOF_CLASS_BYTE(p, c) |= ANYOF_BIT(c))
406 #define ANYOF_CLASS_CLEAR(p, c) (ANYOF_CLASS_BYTE(p, c) &= ~ANYOF_BIT(c))
407 #define ANYOF_CLASS_TEST(p, c) (ANYOF_CLASS_BYTE(p, c) & ANYOF_BIT(c))
408
936ed89 Remove the last regnode<==>char*
Ilya Zakharevich authored
409 #define ANYOF_CLASS_ZERO(ret) Zero(((struct regnode_charclass_class*)(ret))->classflags, ANYOF_CLASSBITMAP_SIZE, char)
410 #define ANYOF_BITMAP_ZERO(ret) Zero(((struct regnode_charclass*)(ret))->bitmap, ANYOF_BITMAP_SIZE, char)
411
412 #define ANYOF_BITMAP(p) (((struct regnode_charclass*)(p))->bitmap)
786e8c1 Yves Orton Re: [PATCH] Trie jumping
demerphq authored
413 #define ANYOF_BITMAP_BYTE(p, c) (ANYOF_BITMAP(p)[(((U8)(c)) >> 3) & 31])
b8c5462 jhi POSIX [[:character class:]] support for standard, locale,
jhi authored
414 #define ANYOF_BITMAP_SET(p, c) (ANYOF_BITMAP_BYTE(p, c) |= ANYOF_BIT(c))
415 #define ANYOF_BITMAP_CLEAR(p,c) (ANYOF_BITMAP_BYTE(p, c) &= ~ANYOF_BIT(c))
416 #define ANYOF_BITMAP_TEST(p, c) (ANYOF_BITMAP_BYTE(p, c) & ANYOF_BIT(c))
417
f8bef55 memset() is cheaper than a loop of 256 bit-a-a-times
Nicholas Clark authored
418 #define ANYOF_BITMAP_SETALL(p) \
419 memset (ANYOF_BITMAP(p), 255, ANYOF_BITMAP_SIZE)
420 #define ANYOF_BITMAP_CLEARALL(p) \
421 Zero (ANYOF_BITMAP(p), ANYOF_BITMAP_SIZE)
422 /* Check that all 256 bits are all set. Used in S_cl_is_anything() */
c355c09 regcomp.h: Add comment
Karl Williamson authored
423 #define ANYOF_BITMAP_TESTALLSET(p) /* Assumes sizeof(p) == 32 */ \
f8bef55 memset() is cheaper than a loop of 256 bit-a-a-times
Nicholas Clark authored
424 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)
425
936ed89 Remove the last regnode<==>char*
Ilya Zakharevich authored
426 #define ANYOF_SKIP ((ANYOF_SIZE - 1)/sizeof(regnode))
427 #define ANYOF_CLASS_SKIP ((ANYOF_CLASS_SIZE - 1)/sizeof(regnode))
3a15e69 regcomp: Allow freeing up bit in ANYOF flags
Karl Williamson authored
428
429 /* The class bit can be set to the locale one if necessary to save bits at the
430 * expense of having locale ANYOF nodes always have a class bit map, and hence
431 * take up extra space. This allows convenient changing it as development
432 * proceeds on this */
433 #if ANYOF_CLASS == ANYOF_LOCALE
434 # undef ANYOF_CLASS_ADD_SKIP
435 # define ANYOF_ADD_LOC_SKIP (ANYOF_CLASS_SKIP - ANYOF_SKIP)
436
437 /* Quicker way to see if there are actually any tests. This is because
438 * currently the set of tests can be empty even when the class bitmap is
439 * allocated */
440 # if ANYOF_CLASSBITMAP_SIZE != 4
441 # error ANYOF_CLASSBITMAP_SIZE is expected to be 4
442 # endif
443 # define ANYOF_CLASS_TEST_ANY_SET(p) /* assumes sizeof(p) = 4 */ \
444 memNE (((struct regnode_charclass_class*)(p))->classflags, \
445 "\0\0\0\0", ANYOF_CLASSBITMAP_SIZE)
446 #else
447 # define ANYOF_CLASS_ADD_SKIP (ANYOF_CLASS_SKIP - ANYOF_SKIP)
448 # undef ANYOF_ADD_LOC_SKIP
449 # define ANYOF_CLASS_TEST_ANY_SET(p) (ANYOF_FLAGS(p) & ANYOF_CLASS)
450 #endif
c277df4 Jumbo regexp patch applied (with minor fix-up tweaks):
Ilya Zakharevich authored
451
786e8c1 Yves Orton Re: [PATCH] Trie jumping
demerphq authored
452
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
453 /*
454 * Utility definitions.
455 */
2304df6 perl 5.0 alpha 8
Andy Dougherty authored
456 #ifndef CHARMASK
075abff Andy Lester Updated lint infrastructure
petdance authored
457 # define UCHARAT(p) ((int)*(const U8*)(p))
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
458 #else
075abff Andy Lester Updated lint infrastructure
petdance authored
459 # define UCHARAT(p) ((int)*(p)&CHARMASK)
a687059 Larry Wall perl 3.0: (no announcement message available)
TimToady authored
460 #endif
461
c277df4 Jumbo regexp patch applied (with minor fix-up tweaks):
Ilya Zakharevich authored
462 #define EXTRA_SIZE(guy) ((sizeof(guy)-1)/sizeof(struct regnode))
463
3dab1da Yves Orton Re: [PATCH] More regex optimisations and debug enhancements (including A...
demerphq authored
464 #define REG_SEEN_ZERO_LEN 0x00000001
465 #define REG_SEEN_LOOKBEHIND 0x00000002
466 #define REG_SEEN_GPOS 0x00000004
467 #define REG_SEEN_EVAL 0x00000008
468 #define REG_SEEN_CANY 0x00000010
cce850e jhi Continuation of #11575: SANY_SEEN completely deprecated,
jhi authored
469 #define REG_SEEN_SANY REG_SEEN_CANY /* src bckwrd cmpt */
6bda09f Yves Orton Re: [PATCH] Add recursive regexes similar to PCRE
demerphq authored
470 #define REG_SEEN_RECURSE 0x00000020
eaf3ca9 Yves Orton Re: [perl #8835] fairly large regex optimization bug with 5.7.3
demerphq authored
471 #define REG_TOP_LEVEL_BRANCHES 0x00000040
e2e6a0f Yves Orton New regex syntax omnibus
demerphq authored
472 #define REG_SEEN_VERBARG 0x00000080
5d458dd Yves Orton Re: [PATCH] New regex syntax omnibus
demerphq authored
473 #define REG_SEEN_CUTGROUP 0x00000100
bcdf740 Yves Orton Improve regex stringification code
demerphq authored
474 #define REG_SEEN_RUN_ON_COMMENT 0x00000200
d09b2d2 add patch that generates regnodes.h via regcomp.pl
Ilya Zakharevich authored
475
73c4f7a EXTERN_C declarations for global arrays in various
Gurusamy Sarathy authored
476 START_EXTERN_C
477
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
478 #ifdef PLUGGABLE_RE_EXTENSION
479 #include "re_nodes.h"
480 #else
d09b2d2 add patch that generates regnodes.h via regcomp.pl
Ilya Zakharevich authored
481 #include "regnodes.h"
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
482 #endif
d09b2d2 add patch that generates regnodes.h via regcomp.pl
Ilya Zakharevich authored
483
f9f4320 Yves Orton Re: [PATCH] Add hook for re_dup() into regex engine as reg_dupe (make re...
demerphq authored
484 #ifndef PLUGGABLE_RE_EXTENSION
485 #ifndef DOINIT
486 EXTCONST regexp_engine PL_core_reg_engine;
487 #else /* DOINIT */
488 EXTCONST regexp_engine PL_core_reg_engine = {
fe578d7 Re: Proposed changes and to regular expression interfaces in core
Ævar Arnfjörð Bjarmason authored
489 Perl_re_compile,
2fdbfb4 FETCH/STORE/LENGTH callbacks for numbered capture variables
Ævar Arnfjörð Bjarmason authored
490 Perl_regexec_flags,
f9f4320 Yves Orton Re: [PATCH] Add hook for re_dup() into regex engine as reg_dupe (make re...
demerphq authored
491 Perl_re_intuit_start,
492 Perl_re_intuit_string,
2fdbfb4 FETCH/STORE/LENGTH callbacks for numbered capture variables
Ævar Arnfjörð Bjarmason authored
493 Perl_regfree_internal,
494 Perl_reg_numbered_buff_fetch,
495 Perl_reg_numbered_buff_store,
496 Perl_reg_numbered_buff_length,
192b9cd Re: [PATCH] Callbacks for named captures (%+ and %-)
Ævar Arnfjörð Bjarmason authored
497 Perl_reg_named_buff,
498 Perl_reg_named_buff_iter,
49d7dfb Re: [PATCH] Cleanup of the regexp API
Ævar Arnfjörð Bjarmason authored
499 Perl_reg_qr_package,
f9f4320 Yves Orton Re: [PATCH] Add hook for re_dup() into regex engine as reg_dupe (make re...
demerphq authored
500 #if defined(USE_ITHREADS)
f814945 Yves Orton Continue split of perl internal regexp structures from ones that are eng...
demerphq authored
501 Perl_regdupe_internal
f9f4320 Yves Orton Re: [PATCH] Add hook for re_dup() into regex engine as reg_dupe (make re...
demerphq authored
502 #endif
503 };
504 #endif /* DOINIT */
505 #endif /* PLUGGABLE_RE_EXTENSION */
506
507
73c4f7a EXTERN_C declarations for global arrays in various
Gurusamy Sarathy authored
508 END_EXTERN_C
cad2e5a jhi Integrate with Sarathy.
jhi authored
509
510
261faec Mark Jason Dominus (陶敏修) Patch: document reg_data.what member
mjdominus authored
511 /* .what is a character array with one character for each member of .data
512 * The character describes the function of the corresponding .data item:
af534a0 Properly free paren_name_list with its regexp.
Nicholas Clark authored
513 * a - AV for paren_name_list under DEBUGGING
0111c4f Rafael Garcia-Suarez Rename ${^RE_TRIE_MAXBUFF} to ${^RE_TRIE_MAXBUF},
rgs authored
514 * f - start-class data for regstclass optimization
261faec Mark Jason Dominus (陶敏修) Patch: document reg_data.what member
mjdominus authored
515 * n - Root of op tree for (?{EVAL}) item
516 * o - Start op for (?{EVAL}) item
3dab1da Yves Orton Re: [PATCH] More regex optimisations and debug enhancements (including A...
demerphq authored
517 * p - Pad for (?{EVAL}) item
38a44b8 s/\bunicode\b/Unicode/; # For everything not dual life
Nicholas Clark authored
518 * s - swash for Unicode-style character class, and the multicharacter
9e55ce0 jhi Finish up (ha!) the Unicode case folding;
jhi authored
519 * strings resulting from casefolding the single-character entries
520 * in the character class
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
521 * t - trie struct
55eed65 Move widecharmap out of the shared structure _reg_trie_data into the
Nicholas Clark authored
522 * u - trie struct's widecharmap (a HV, so can't share, must dup)
2b8b478 Move words and revcharmap out of struct _rev_trie_data and duplicate
Nicholas Clark authored
523 * also used for revcharmap and words under DEBUGGING
07be1b8 Yves Orton Re: [PATCH] Better version of the Aho-Corasick patch and lots of benchma...
demerphq authored
524 * T - aho-trie struct
81714fb Yves Orton Re: [PATCH] Initial attempt at named captures for perls regexp engine
demerphq authored
525 * S - sv for named capture lookup
261faec Mark Jason Dominus (陶敏修) Patch: document reg_data.what member
mjdominus authored
526 * 20010712 mjd@plover.com
c3613ed adds a comment
Abhijit Menon-Sen authored
527 * (Remember to update re_dup() and pregfree() if you add any items.)
261faec Mark Jason Dominus (陶敏修) Patch: document reg_data.what member
mjdominus authored
528 */
cad2e5a jhi Integrate with Sarathy.
jhi authored
529 struct reg_data {
530 U32 count;
531 U8 *what;
532 void* data[1];
533 };
534
a1cac82 Remove code duplication in S_to_utf8_substr() and S_to_byte_substr()
Nicholas Clark authored
535 /* Code in S_to_utf8_substr() and S_to_byte_substr() in regexec.c accesses
536 anchored* and float* via array indexes 0 and 1. */
cad2e5a jhi Integrate with Sarathy.
jhi authored
537 #define anchored_substr substrs->data[0].substr
33b8afd jhi Fix for "UTF-8 bug with s///" from Hugo.
jhi authored
538 #define anchored_utf8 substrs->data[0].utf8_substr
cad2e5a jhi Integrate with Sarathy.
jhi authored
539 #define anchored_offset substrs->data[0].min_offset
1de0632 Yves Orton Teach regex optimiser how to handle (?=) and (?<=) properly.
demerphq authored
540 #define anchored_end_shift substrs->data[0].end_shift
541
cad2e5a jhi Integrate with Sarathy.
jhi authored
542 #define float_substr substrs->data[1].substr
33b8afd jhi Fix for "UTF-8 bug with s///" from Hugo.
jhi authored
543 #define float_utf8 substrs->data[1].utf8_substr
cad2e5a jhi Integrate with Sarathy.
jhi authored
544 #define float_min_offset substrs->data[1].min_offset
545 #define float_max_offset substrs->data[1].max_offset
1de0632 Yves Orton Teach regex optimiser how to handle (?=) and (?<=) properly.
demerphq authored
546 #define float_end_shift substrs->data[1].end_shift
547
cad2e5a jhi Integrate with Sarathy.
jhi authored
548 #define check_substr substrs->data[2].substr
33b8afd jhi Fix for "UTF-8 bug with s///" from Hugo.
jhi authored
549 #define check_utf8 substrs->data[2].utf8_substr
cad2e5a jhi Integrate with Sarathy.
jhi authored
550 #define check_offset_min substrs->data[2].min_offset
551 #define check_offset_max substrs->data[2].max_offset
1de0632 Yves Orton Teach regex optimiser how to handle (?=) and (?<=) properly.
demerphq authored
552 #define check_end_shift substrs->data[2].end_shift
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
553
288b8c0 Make struct regexp the body of SVt_REGEXP SVs, REGEXPs become SVs,
Nicholas Clark authored
554 #define RX_ANCHORED_SUBSTR(rx) (((struct regexp *)SvANY(rx))->anchored_substr)
555 #define RX_ANCHORED_UTF8(rx) (((struct regexp *)SvANY(rx))->anchored_utf8)
556 #define RX_FLOAT_SUBSTR(rx) (((struct regexp *)SvANY(rx))->float_substr)
557 #define RX_FLOAT_UTF8(rx) (((struct regexp *)SvANY(rx))->float_utf8)
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
558
559 /* trie related stuff */
5d9a96c use slabs to allocate save state space in regmatch()
Dave Mitchell authored
560
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
561 /* a transition record for the state machine. the
562 check field determines which state "owns" the
563 transition. the char the transition is for is
564 determined by offset from the owning states base
565 field. the next field determines which state
566 is to be transitioned to if any.
567 */
568 struct _reg_trie_trans {
569 U32 next;
570 U32 check;
571 };
572
573 /* a transition list element for the list based representation */
574 struct _reg_trie_trans_list_elem {
575 U16 forid;
576 U32 newstate;
577 };
578 typedef struct _reg_trie_trans_list_elem reg_trie_trans_le;
579
580 /* a state for compressed nodes. base is an offset
581 into an array of reg_trie_trans array. If wordnum is
582 nonzero the state is accepting. if base is zero then
583 the state has no children (and will be accepting)
584 */
585 struct _reg_trie_state {
586 U16 wordnum;
587 union {
588 U32 base;
589 reg_trie_trans_le* list;
590 } trans;
591 };
592
2e64971 iabyn tries: don't allocate memory at runtime
iabyn authored
593 /* info per word; indexed by wordnum */
594 typedef struct {
595 U16 prev; /* previous word in acceptance chain; eg in
596 * zzz|abc|ab/ after matching the chars abc, the
597 * accepted word is #2, and the previous accepted
598 * word is #3 */
599 U32 len; /* how many chars long is this word? */
600 U32 accept; /* accept state for this word */
601 } reg_trie_wordinfo;
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
602
603
604 typedef struct _reg_trie_state reg_trie_state;
605 typedef struct _reg_trie_trans reg_trie_trans;
606
607
608 /* anything in here that needs to be freed later
23eab42 Moving the reference count to the front of both _reg_trie_data and
Nicholas Clark authored
609 should be dealt with in pregfree.
610 refcount is first in both this and _reg_ac_data to allow a space
611 optimisation in Perl_regdupe. */
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
612 struct _reg_trie_data {
23eab42 Moving the reference count to the front of both _reg_trie_data and
Nicholas Clark authored
613 U32 refcount; /* number of times this trie is referenced */
786e8c1 Yves Orton Re: [PATCH] Trie jumping
demerphq authored
614 U32 lasttrans; /* last valid transition element */
615 U16 *charmap; /* byte to charid lookup array */
616 reg_trie_state *states; /* state data */
617 reg_trie_trans *trans; /* array of transition elements */
618 char *bitmap; /* stclass bitmap */
619 U16 *jump; /* optional 1 indexed array of offsets before tail
620 for the node following a given word. */
2e64971 iabyn tries: don't allocate memory at runtime
iabyn authored
621 reg_trie_wordinfo *wordinfo; /* array of info per word */
1b5c067 Reorder the members of various regexp structs to reduce their size on
Nicholas Clark authored
622 U16 uniquecharcount; /* unique chars in trie (width of trans table) */
623 U32 startstate; /* initial state - used for common prefix optimisation */
624 STRLEN minlen; /* minimum length of words in trie - build/opt only? */
625 STRLEN maxlen; /* maximum length of words in trie - build/opt only? */
2e64971 iabyn tries: don't allocate memory at runtime
iabyn authored
626 U32 prefixlen; /* #chars in common prefix */
1e2e3d0 Yves Orton Re: Off by one in the trie code?
demerphq authored
627 U32 statecount; /* Build only - number of states in the states array
628 (including the unused zero state) */
786e8c1 Yves Orton Re: [PATCH] Trie jumping
demerphq authored
629 U32 wordcount; /* Build only */
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
630 #ifdef DEBUGGING
786e8c1 Yves Orton Re: [PATCH] Trie jumping
demerphq authored
631 STRLEN charcount; /* Build only */
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
632 #endif
633 };
2b8b478 Move words and revcharmap out of struct _rev_trie_data and duplicate
Nicholas Clark authored
634 /* There is one (3 under DEBUGGING) pointers that logically belong in this
635 structure, but are held outside as they need duplication on thread cloning,
636 whereas the rest of the structure can be read only:
637 HV *widecharmap; code points > 255 to charid
638 #ifdef DEBUGGING
639 AV *words; Array of words contained in trie, for dumping
640 AV *revcharmap; Map of each charid back to its character representation
641 #endif
642 */
643
644 #define TRIE_WORDS_OFFSET 2
645
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
646 typedef struct _reg_trie_data reg_trie_data;
647
23eab42 Moving the reference count to the front of both _reg_trie_data and
Nicholas Clark authored
648 /* refcount is first in both this and _reg_trie_data to allow a space
649 optimisation in Perl_regdupe. */
07be1b8 Yves Orton Re: [PATCH] Better version of the Aho-Corasick patch and lots of benchma...
demerphq authored
650 struct _reg_ac_data {
23eab42 Moving the reference count to the front of both _reg_trie_data and
Nicholas Clark authored
651 U32 refcount;
1b5c067 Reorder the members of various regexp structs to reduce their size on
Nicholas Clark authored
652 U32 trie;
07be1b8 Yves Orton Re: [PATCH] Better version of the Aho-Corasick patch and lots of benchma...
demerphq authored
653 U32 *fail;
654 reg_trie_state *states;
655 };
656 typedef struct _reg_ac_data reg_ac_data;
657
3dab1da Yves Orton Re: [PATCH] More regex optimisations and debug enhancements (including A...
demerphq authored
658 /* ANY_BIT doesnt use the structure, so we can borrow it here.
659 This is simpler than refactoring all of it as wed end up with
660 three different sets... */
661
662 #define TRIE_BITMAP(p) (((reg_trie_data *)(p))->bitmap)
786e8c1 Yves Orton Re: [PATCH] Trie jumping
demerphq authored
663 #define TRIE_BITMAP_BYTE(p, c) (TRIE_BITMAP(p)[(((U8)(c)) >> 3) & 31])
5dfe062 Yves Orton Comply with the 0x80th commandment
demerphq authored
664 #define TRIE_BITMAP_SET(p, c) (TRIE_BITMAP_BYTE(p, c) |= ANYOF_BIT((U8)c))
665 #define TRIE_BITMAP_CLEAR(p,c) (TRIE_BITMAP_BYTE(p, c) &= ~ANYOF_BIT((U8)c))
666 #define TRIE_BITMAP_TEST(p, c) (TRIE_BITMAP_BYTE(p, c) & ANYOF_BIT((U8)c))
3dab1da Yves Orton Re: [PATCH] More regex optimisations and debug enhancements (including A...
demerphq authored
667
1de0632 Yves Orton Teach regex optimiser how to handle (?=) and (?<=) properly.
demerphq authored
668 #define IS_ANYOF_TRIE(op) ((op)==TRIEC || (op)==AHOCORASICKC)
669 #define IS_TRIE_AC(op) ((op)>=AHOCORASICK)
670
671
786e8c1 Yves Orton Re: [PATCH] Trie jumping
demerphq authored
672 #define BITMAP_BYTE(p, c) (((U8*)p)[(((U8)(c)) >> 3) & 31])
673 #define BITMAP_TEST(p, c) (BITMAP_BYTE(p, c) & ANYOF_BIT((U8)c))
3dab1da Yves Orton Re: [PATCH] More regex optimisations and debug enhancements (including A...
demerphq authored
674
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
675 /* these defines assume uniquecharcount is the correct variable, and state may be evaluated twice */
676 #define TRIE_NODENUM(state) (((state)-1)/(trie->uniquecharcount)+1)
677 #define SAFE_TRIE_NODENUM(state) ((state) ? (((state)-1)/(trie->uniquecharcount)+1) : (state))
678 #define TRIE_NODEIDX(state) ((state) ? (((state)-1)*(trie->uniquecharcount)+1) : (state))
679
3dab1da Yves Orton Re: [PATCH] More regex optimisations and debug enhancements (including A...
demerphq authored
680 #ifdef DEBUGGING
681 #define TRIE_CHARCOUNT(trie) ((trie)->charcount)
682 #else
683 #define TRIE_CHARCOUNT(trie) (trie_charcount)
684 #endif
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
685
0111c4f Rafael Garcia-Suarez Rename ${^RE_TRIE_MAXBUFF} to ${^RE_TRIE_MAXBUF},
rgs authored
686 #define RE_TRIE_MAXBUF_INIT 65536
687 #define RE_TRIE_MAXBUF_NAME "\022E_TRIE_MAXBUF"
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
688 #define RE_DEBUG_FLAGS "\022E_DEBUG_FLAGS"
689
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
690 /*
691
692 RE_DEBUG_FLAGS is used to control what debug output is emitted
693 its divided into three groups of options, some of which interact.
694 The three groups are: Compile, Execute, Extra. There is room for a
695 further group, as currently only the low three bytes are used.
696
697 Compile Options:
07be1b8 Yves Orton Re: [PATCH] Better version of the Aho-Corasick patch and lots of benchma...
demerphq authored
698
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
699 PARSE
700 PEEP
701 TRIE
702 PROGRAM
703 OFFSETS
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
704
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
705 Execute Options:
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
706
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
707 INTUIT
708 MATCH
709 TRIE
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
710
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
711 Extra Options
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
712
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
713 TRIE
714 OFFSETS
715
716 If you modify any of these make sure you make corresponding changes to
717 re.pm, especially to the documentation.
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
718
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
719 */
720
721
722 /* Compile */
723 #define RE_DEBUG_COMPILE_MASK 0x0000FF
724 #define RE_DEBUG_COMPILE_PARSE 0x000001
725 #define RE_DEBUG_COMPILE_OPTIMISE 0x000002
726 #define RE_DEBUG_COMPILE_TRIE 0x000004
727 #define RE_DEBUG_COMPILE_DUMP 0x000008
f7819f8 Abigail /p vs (?p)
Abigail authored
728 #define RE_DEBUG_COMPILE_FLAGS 0x000010
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
729
730 /* Execute */
731 #define RE_DEBUG_EXECUTE_MASK 0x00FF00
732 #define RE_DEBUG_EXECUTE_INTUIT 0x000100
733 #define RE_DEBUG_EXECUTE_MATCH 0x000200
734 #define RE_DEBUG_EXECUTE_TRIE 0x000400
735
736 /* Extra */
737 #define RE_DEBUG_EXTRA_MASK 0xFF0000
738 #define RE_DEBUG_EXTRA_TRIE 0x010000
739 #define RE_DEBUG_EXTRA_OFFSETS 0x020000
a5ca303 Yves Orton Minor re 'Debug' tweaks, also fix a bug in dumping certain patterns.
demerphq authored
740 #define RE_DEBUG_EXTRA_OFFDEBUG 0x040000
741 #define RE_DEBUG_EXTRA_STATE 0x080000
742 #define RE_DEBUG_EXTRA_OPTIMISE 0x100000
e770707 Yves Orton Re: New file: t/op/regexp_email.t
demerphq authored
743 #define RE_DEBUG_EXTRA_BUFFERS 0x400000
2c29696 Yves Orton add more positive gofs GPOS tests and fix some bugs too
demerphq authored
744 #define RE_DEBUG_EXTRA_GPOS 0x800000
24b23f3 Yves Orton Add more backtracking control verbs to regex engine (?CUT), (?ERROR)
demerphq authored
745 /* combined */
746 #define RE_DEBUG_EXTRA_STACK 0x280000
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
747
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
748 #define RE_DEBUG_FLAG(x) (re_debug_flags & x)
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
749 /* Compile */
750 #define DEBUG_COMPILE_r(x) DEBUG_r( \
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
751 if (re_debug_flags & RE_DEBUG_COMPILE_MASK) x )
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
752 #define DEBUG_PARSE_r(x) DEBUG_r( \
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
753 if (re_debug_flags & RE_DEBUG_COMPILE_PARSE) x )
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
754 #define DEBUG_OPTIMISE_r(x) DEBUG_r( \
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
755 if (re_debug_flags & RE_DEBUG_COMPILE_OPTIMISE) x )
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
756 #define DEBUG_PARSE_r(x) DEBUG_r( \
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
757 if (re_debug_flags & RE_DEBUG_COMPILE_PARSE) x )
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
758 #define DEBUG_DUMP_r(x) DEBUG_r( \
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
759 if (re_debug_flags & RE_DEBUG_COMPILE_DUMP) x )
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
760 #define DEBUG_TRIE_COMPILE_r(x) DEBUG_r( \
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
761 if (re_debug_flags & RE_DEBUG_COMPILE_TRIE) x )
f7819f8 Abigail /p vs (?p)
Abigail authored
762 #define DEBUG_FLAGS_r(x) DEBUG_r( \
763 if (re_debug_flags & RE_DEBUG_COMPILE_FLAGS) x )
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
764 /* Execute */
765 #define DEBUG_EXECUTE_r(x) DEBUG_r( \
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
766 if (re_debug_flags & RE_DEBUG_EXECUTE_MASK) x )
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
767 #define DEBUG_INTUIT_r(x) DEBUG_r( \
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
768 if (re_debug_flags & RE_DEBUG_EXECUTE_INTUIT) x )
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
769 #define DEBUG_MATCH_r(x) DEBUG_r( \
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
770 if (re_debug_flags & RE_DEBUG_EXECUTE_MATCH) x )
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
771 #define DEBUG_TRIE_EXECUTE_r(x) DEBUG_r( \
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
772 if (re_debug_flags & RE_DEBUG_EXECUTE_TRIE) x )
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
773
774 /* Extra */
775 #define DEBUG_EXTRA_r(x) DEBUG_r( \
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
776 if (re_debug_flags & RE_DEBUG_EXTRA_MASK) x )
a5ca303 Yves Orton Minor re 'Debug' tweaks, also fix a bug in dumping certain patterns.
demerphq authored
777 #define DEBUG_OFFSETS_r(x) DEBUG_r( \
778 if (re_debug_flags & RE_DEBUG_EXTRA_OFFSETS) x )
ab3bbde Yves Orton Updated escaping code. utf8 regex debug output improvements
demerphq authored
779 #define DEBUG_STATE_r(x) DEBUG_r( \
780 if (re_debug_flags & RE_DEBUG_EXTRA_STATE) x )
24b23f3 Yves Orton Add more backtracking control verbs to regex engine (?CUT), (?ERROR)
demerphq authored
781 #define DEBUG_STACK_r(x) DEBUG_r( \
782 if (re_debug_flags & RE_DEBUG_EXTRA_STACK) x )
e770707 Yves Orton Re: New file: t/op/regexp_email.t
demerphq authored
783 #define DEBUG_BUFFERS_r(x) DEBUG_r( \
784 if (re_debug_flags & RE_DEBUG_EXTRA_BUFFERS) x )
785
a5ca303 Yves Orton Minor re 'Debug' tweaks, also fix a bug in dumping certain patterns.
demerphq authored
786 #define DEBUG_OPTIMISE_MORE_r(x) DEBUG_r( \
787 if ((RE_DEBUG_EXTRA_OPTIMISE|RE_DEBUG_COMPILE_OPTIMISE) == \
788 (re_debug_flags & (RE_DEBUG_EXTRA_OPTIMISE|RE_DEBUG_COMPILE_OPTIMISE)) ) x )
07be1b8 Yves Orton Re: [PATCH] Better version of the Aho-Corasick patch and lots of benchma...
demerphq authored
789 #define MJD_OFFSET_DEBUG(x) DEBUG_r( \
a5ca303 Yves Orton Minor re 'Debug' tweaks, also fix a bug in dumping certain patterns.
demerphq authored
790 if (re_debug_flags & RE_DEBUG_EXTRA_OFFDEBUG) \
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
791 Perl_warn_nocontext x )
792 #define DEBUG_TRIE_COMPILE_MORE_r(x) DEBUG_TRIE_COMPILE_r( \
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
793 if (re_debug_flags & RE_DEBUG_EXTRA_TRIE) x )
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
794 #define DEBUG_TRIE_EXECUTE_MORE_r(x) DEBUG_TRIE_EXECUTE_r( \
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
795 if (re_debug_flags & RE_DEBUG_EXTRA_TRIE) x )
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
796
797 #define DEBUG_TRIE_r(x) DEBUG_r( \
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
798 if (re_debug_flags & (RE_DEBUG_COMPILE_TRIE \
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
799 | RE_DEBUG_EXECUTE_TRIE )) x )
2c29696 Yves Orton add more positive gofs GPOS tests and fix some bugs too
demerphq authored
800 #define DEBUG_GPOS_r(x) DEBUG_r( \
801 if (re_debug_flags & RE_DEBUG_EXTRA_GPOS) x )
be8e71a Yves Orton Re: [PATCH] regexec/regcomp.c cleanups
demerphq authored
802
803 /* initialization */
595598e PATCH: regex longjmp flaws
Karl Williamson authored
804 /* get_sv() can return NULL during global destruction. re_debug_flags can get
805 * clobbered by a longjmp, so must be initialized */
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
806 #define GET_RE_DEBUG_FLAGS DEBUG_r({ \
807 SV * re_debug_flags_sv = NULL; \
595598e PATCH: regex longjmp flaws
Karl Williamson authored
808 re_debug_flags = 0; \
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
809 re_debug_flags_sv = get_sv(RE_DEBUG_FLAGS, 1); \
810 if (re_debug_flags_sv) { \
8e9a8a4 Yves Orton Re: [PATCH] fix re debug segvs in global destruction, and a tweak to Ben...
demerphq authored
811 if (!SvIOK(re_debug_flags_sv)) \
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
812 sv_setuv(re_debug_flags_sv, RE_DEBUG_COMPILE_DUMP | RE_DEBUG_EXECUTE_MASK ); \
8e9a8a4 Yves Orton Re: [PATCH] fix re debug segvs in global destruction, and a tweak to Ben...
demerphq authored
813 re_debug_flags=SvIV(re_debug_flags_sv); \
e68ec53 Yves Orton fix re debug segvs in global destruction, and a tweak to Benchmark to pr...
demerphq authored
814 }\
815 })
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
816
817 #ifdef DEBUGGING
ab3bbde Yves Orton Updated escaping code. utf8 regex debug output improvements
demerphq authored
818
d53d27f regcomp.c: Get rid of compiler warning.
Karl Williamson authored
819 #define GET_RE_DEBUG_FLAGS_DECL VOL IV re_debug_flags = 0; GET_RE_DEBUG_FLAGS;
ab3bbde Yves Orton Updated escaping code. utf8 regex debug output improvements
demerphq authored
820
821 #define RE_PV_COLOR_DECL(rpv,rlen,isuni,dsv,pv,l,m,c1,c2) \
822 const char * const rpv = \
ddc5bc0 Yves Orton Re: Fix loads of warnings from the last escaping patch...
demerphq authored
823 pv_pretty((dsv), (pv), (l), (m), \
ab3bbde Yves Orton Updated escaping code. utf8 regex debug output improvements
demerphq authored
824 PL_colors[(c1)],PL_colors[(c2)], \
0a0e9af Yves Orton Re: [PATCH] Change implementation of %+ to use a proper tied hash interf...
demerphq authored
825 PERL_PV_ESCAPE_RE |((isuni) ? PERL_PV_ESCAPE_UNI : 0) ); \
0df25f3 Yves Orton More escaping in the RE
demerphq authored
826 const int rlen = SvCUR(dsv)
ab3bbde Yves Orton Updated escaping code. utf8 regex debug output improvements
demerphq authored
827
828 #define RE_SV_ESCAPE(rpv,isuni,dsv,sv,m) \
829 const char * const rpv = \
ddc5bc0 Yves Orton Re: Fix loads of warnings from the last escaping patch...
demerphq authored
830 pv_pretty((dsv), (SvPV_nolen_const(sv)), (SvCUR(sv)), (m), \
ab3bbde Yves Orton Updated escaping code. utf8 regex debug output improvements
demerphq authored
831 PL_colors[(c1)],PL_colors[(c2)], \
0a0e9af Yves Orton Re: [PATCH] Change implementation of %+ to use a proper tied hash interf...
demerphq authored
832 PERL_PV_ESCAPE_RE |((isuni) ? PERL_PV_ESCAPE_UNI : 0) )
ab3bbde Yves Orton Updated escaping code. utf8 regex debug output improvements
demerphq authored
833
834 #define RE_PV_QUOTED_DECL(rpv,isuni,dsv,pv,l,m) \
835 const char * const rpv = \
ddc5bc0 Yves Orton Re: Fix loads of warnings from the last escaping patch...
demerphq authored
836 pv_pretty((dsv), (pv), (l), (m), \
ab3bbde Yves Orton Updated escaping code. utf8 regex debug output improvements
demerphq authored
837 PL_colors[0], PL_colors[1], \
95b611b Rafael Garcia-Suarez API spelling patch, by Jerry D. Hedden
rgs authored
838 ( PERL_PV_PRETTY_QUOTE | PERL_PV_ESCAPE_RE | PERL_PV_PRETTY_ELLIPSES | \
ab3bbde Yves Orton Updated escaping code. utf8 regex debug output improvements
demerphq authored
839 ((isuni) ? PERL_PV_ESCAPE_UNI : 0)) \
0a0e9af Yves Orton Re: [PATCH] Change implementation of %+ to use a proper tied hash interf...
demerphq authored
840 )
ab3bbde Yves Orton Updated escaping code. utf8 regex debug output improvements
demerphq authored
841
842 #define RE_SV_DUMPLEN(ItEm) (SvCUR(ItEm) - (SvTAIL(ItEm)!=0))
843 #define RE_SV_TAIL(ItEm) (SvTAIL(ItEm) ? "$" : "")
844
845 #else /* if not DEBUGGING */
846
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
847 #define GET_RE_DEBUG_FLAGS_DECL
ab3bbde Yves Orton Updated escaping code. utf8 regex debug output improvements
demerphq authored
848 #define RE_PV_COLOR_DECL(rpv,rlen,isuni,dsv,pv,l,m,c1,c2)
849 #define RE_SV_ESCAPE(rpv,isuni,dsv,sv,m)
850 #define RE_PV_QUOTED_DECL(rpv,isuni,dsv,pv,l,m)
851 #define RE_SV_DUMPLEN(ItEm)
852 #define RE_SV_TAIL(ItEm)
853
854 #endif /* DEBUG RELATED DEFINES */
a3621e7 Yves Orton Re: Reworked Trie Patch
demerphq authored
855
e9a8c09 Add editor blocks to some header files.
Marcus Holland-Moritz authored
856 /*
857 * Local variables:
858 * c-indentation-style: bsd
859 * c-basic-offset: 4
860 * indent-tabs-mode: t
861 * End:
862 *
863 * ex: set ts=8 sts=4 sw=4 noet:
864 */
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