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Revision 676 - (show annotations) (download)
Sat Aug 27 15:53:04 2011 UTC (2 years, 11 months ago) by ph10
File size: 16089 byte(s)
Give PCRE_ERROR_JIT_STACKLIMIT when JIT runs out of stack.

1 /*************************************************
2 * Perl-Compatible Regular Expressions *
3 *************************************************/
4
5 /* This is the public header file for the PCRE library, to be #included by
6 applications that call the PCRE functions.
7
8 Copyright (c) 1997-2011 University of Cambridge
9
10 -----------------------------------------------------------------------------
11 Redistribution and use in source and binary forms, with or without
12 modification, are permitted provided that the following conditions are met:
13
14 * Redistributions of source code must retain the above copyright notice,
15 this list of conditions and the following disclaimer.
16
17 * Redistributions in binary form must reproduce the above copyright
18 notice, this list of conditions and the following disclaimer in the
19 documentation and/or other materials provided with the distribution.
20
21 * Neither the name of the University of Cambridge nor the names of its
22 contributors may be used to endorse or promote products derived from
23 this software without specific prior written permission.
24
25 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
26 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
29 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 POSSIBILITY OF SUCH DAMAGE.
36 -----------------------------------------------------------------------------
37 */
38
39 #ifndef _PCRE_H
40 #define _PCRE_H
41
42 /* The current PCRE version information. */
43
44 #define PCRE_MAJOR @PCRE_MAJOR@
45 #define PCRE_MINOR @PCRE_MINOR@
46 #define PCRE_PRERELEASE @PCRE_PRERELEASE@
47 #define PCRE_DATE @PCRE_DATE@
48
49 /* When an application links to a PCRE DLL in Windows, the symbols that are
50 imported have to be identified as such. When building PCRE, the appropriate
51 export setting is defined in pcre_internal.h, which includes this file. So we
52 don't change existing definitions of PCRE_EXP_DECL and PCRECPP_EXP_DECL. */
53
54 #if defined(_WIN32) && !defined(PCRE_STATIC)
55 # ifndef PCRE_EXP_DECL
56 # define PCRE_EXP_DECL extern __declspec(dllimport)
57 # endif
58 # ifdef __cplusplus
59 # ifndef PCRECPP_EXP_DECL
60 # define PCRECPP_EXP_DECL extern __declspec(dllimport)
61 # endif
62 # ifndef PCRECPP_EXP_DEFN
63 # define PCRECPP_EXP_DEFN __declspec(dllimport)
64 # endif
65 # endif
66 #endif
67
68 /* By default, we use the standard "extern" declarations. */
69
70 #ifndef PCRE_EXP_DECL
71 # ifdef __cplusplus
72 # define PCRE_EXP_DECL extern "C"
73 # else
74 # define PCRE_EXP_DECL extern
75 # endif
76 #endif
77
78 #ifdef __cplusplus
79 # ifndef PCRECPP_EXP_DECL
80 # define PCRECPP_EXP_DECL extern
81 # endif
82 # ifndef PCRECPP_EXP_DEFN
83 # define PCRECPP_EXP_DEFN
84 # endif
85 #endif
86
87 /* Have to include stdlib.h in order to ensure that size_t is defined;
88 it is needed here for malloc. */
89
90 #include <stdlib.h>
91
92 /* Allow for C++ users */
93
94 #ifdef __cplusplus
95 extern "C" {
96 #endif
97
98 /* Options. Some are compile-time only, some are run-time only, and some are
99 both, so we keep them all distinct. However, almost all the bits in the options
100 word are now used. In the long run, we may have to re-use some of the
101 compile-time only bits for runtime options, or vice versa. */
102
103 #define PCRE_CASELESS 0x00000001 /* Compile */
104 #define PCRE_MULTILINE 0x00000002 /* Compile */
105 #define PCRE_DOTALL 0x00000004 /* Compile */
106 #define PCRE_EXTENDED 0x00000008 /* Compile */
107 #define PCRE_ANCHORED 0x00000010 /* Compile, exec, DFA exec */
108 #define PCRE_DOLLAR_ENDONLY 0x00000020 /* Compile */
109 #define PCRE_EXTRA 0x00000040 /* Compile */
110 #define PCRE_NOTBOL 0x00000080 /* Exec, DFA exec */
111 #define PCRE_NOTEOL 0x00000100 /* Exec, DFA exec */
112 #define PCRE_UNGREEDY 0x00000200 /* Compile */
113 #define PCRE_NOTEMPTY 0x00000400 /* Exec, DFA exec */
114 #define PCRE_UTF8 0x00000800 /* Compile */
115 #define PCRE_NO_AUTO_CAPTURE 0x00001000 /* Compile */
116 #define PCRE_NO_UTF8_CHECK 0x00002000 /* Compile, exec, DFA exec */
117 #define PCRE_AUTO_CALLOUT 0x00004000 /* Compile */
118 #define PCRE_PARTIAL_SOFT 0x00008000 /* Exec, DFA exec */
119 #define PCRE_PARTIAL 0x00008000 /* Backwards compatible synonym */
120 #define PCRE_DFA_SHORTEST 0x00010000 /* DFA exec */
121 #define PCRE_DFA_RESTART 0x00020000 /* DFA exec */
122 #define PCRE_FIRSTLINE 0x00040000 /* Compile */
123 #define PCRE_DUPNAMES 0x00080000 /* Compile */
124 #define PCRE_NEWLINE_CR 0x00100000 /* Compile, exec, DFA exec */
125 #define PCRE_NEWLINE_LF 0x00200000 /* Compile, exec, DFA exec */
126 #define PCRE_NEWLINE_CRLF 0x00300000 /* Compile, exec, DFA exec */
127 #define PCRE_NEWLINE_ANY 0x00400000 /* Compile, exec, DFA exec */
128 #define PCRE_NEWLINE_ANYCRLF 0x00500000 /* Compile, exec, DFA exec */
129 #define PCRE_BSR_ANYCRLF 0x00800000 /* Compile, exec, DFA exec */
130 #define PCRE_BSR_UNICODE 0x01000000 /* Compile, exec, DFA exec */
131 #define PCRE_JAVASCRIPT_COMPAT 0x02000000 /* Compile */
132 #define PCRE_NO_START_OPTIMIZE 0x04000000 /* Compile, exec, DFA exec */
133 #define PCRE_NO_START_OPTIMISE 0x04000000 /* Synonym */
134 #define PCRE_PARTIAL_HARD 0x08000000 /* Exec, DFA exec */
135 #define PCRE_NOTEMPTY_ATSTART 0x10000000 /* Exec, DFA exec */
136 #define PCRE_UCP 0x20000000 /* Compile */
137
138 /* Exec-time and get/set-time error codes */
139
140 #define PCRE_ERROR_NOMATCH (-1)
141 #define PCRE_ERROR_NULL (-2)
142 #define PCRE_ERROR_BADOPTION (-3)
143 #define PCRE_ERROR_BADMAGIC (-4)
144 #define PCRE_ERROR_UNKNOWN_OPCODE (-5)
145 #define PCRE_ERROR_UNKNOWN_NODE (-5) /* For backward compatibility */
146 #define PCRE_ERROR_NOMEMORY (-6)
147 #define PCRE_ERROR_NOSUBSTRING (-7)
148 #define PCRE_ERROR_MATCHLIMIT (-8)
149 #define PCRE_ERROR_CALLOUT (-9) /* Never used by PCRE itself */
150 #define PCRE_ERROR_BADUTF8 (-10)
151 #define PCRE_ERROR_BADUTF8_OFFSET (-11)
152 #define PCRE_ERROR_PARTIAL (-12)
153 #define PCRE_ERROR_BADPARTIAL (-13)
154 #define PCRE_ERROR_INTERNAL (-14)
155 #define PCRE_ERROR_BADCOUNT (-15)
156 #define PCRE_ERROR_DFA_UITEM (-16)
157 #define PCRE_ERROR_DFA_UCOND (-17)
158 #define PCRE_ERROR_DFA_UMLIMIT (-18)
159 #define PCRE_ERROR_DFA_WSSIZE (-19)
160 #define PCRE_ERROR_DFA_RECURSE (-20)
161 #define PCRE_ERROR_RECURSIONLIMIT (-21)
162 #define PCRE_ERROR_NULLWSLIMIT (-22) /* No longer actually used */
163 #define PCRE_ERROR_BADNEWLINE (-23)
164 #define PCRE_ERROR_BADOFFSET (-24)
165 #define PCRE_ERROR_SHORTUTF8 (-25)
166 #define PCRE_ERROR_RECURSELOOP (-26)
167 #define PCRE_ERROR_JIT_STACKLIMIT (-27)
168
169 /* Specific error codes for UTF-8 validity checks */
170
171 #define PCRE_UTF8_ERR0 0
172 #define PCRE_UTF8_ERR1 1
173 #define PCRE_UTF8_ERR2 2
174 #define PCRE_UTF8_ERR3 3
175 #define PCRE_UTF8_ERR4 4
176 #define PCRE_UTF8_ERR5 5
177 #define PCRE_UTF8_ERR6 6
178 #define PCRE_UTF8_ERR7 7
179 #define PCRE_UTF8_ERR8 8
180 #define PCRE_UTF8_ERR9 9
181 #define PCRE_UTF8_ERR10 10
182 #define PCRE_UTF8_ERR11 11
183 #define PCRE_UTF8_ERR12 12
184 #define PCRE_UTF8_ERR13 13
185 #define PCRE_UTF8_ERR14 14
186 #define PCRE_UTF8_ERR15 15
187 #define PCRE_UTF8_ERR16 16
188 #define PCRE_UTF8_ERR17 17
189 #define PCRE_UTF8_ERR18 18
190 #define PCRE_UTF8_ERR19 19
191 #define PCRE_UTF8_ERR20 20
192 #define PCRE_UTF8_ERR21 21
193
194 /* Request types for pcre_fullinfo() */
195
196 #define PCRE_INFO_OPTIONS 0
197 #define PCRE_INFO_SIZE 1
198 #define PCRE_INFO_CAPTURECOUNT 2
199 #define PCRE_INFO_BACKREFMAX 3
200 #define PCRE_INFO_FIRSTBYTE 4
201 #define PCRE_INFO_FIRSTCHAR 4 /* For backwards compatibility */
202 #define PCRE_INFO_FIRSTTABLE 5
203 #define PCRE_INFO_LASTLITERAL 6
204 #define PCRE_INFO_NAMEENTRYSIZE 7
205 #define PCRE_INFO_NAMECOUNT 8
206 #define PCRE_INFO_NAMETABLE 9
207 #define PCRE_INFO_STUDYSIZE 10
208 #define PCRE_INFO_DEFAULT_TABLES 11
209 #define PCRE_INFO_OKPARTIAL 12
210 #define PCRE_INFO_JCHANGED 13
211 #define PCRE_INFO_HASCRORLF 14
212 #define PCRE_INFO_MINLENGTH 15
213 #define PCRE_INFO_JIT 16
214
215 /* Request types for pcre_config(). Do not re-arrange, in order to remain
216 compatible. */
217
218 #define PCRE_CONFIG_UTF8 0
219 #define PCRE_CONFIG_NEWLINE 1
220 #define PCRE_CONFIG_LINK_SIZE 2
221 #define PCRE_CONFIG_POSIX_MALLOC_THRESHOLD 3
222 #define PCRE_CONFIG_MATCH_LIMIT 4
223 #define PCRE_CONFIG_STACKRECURSE 5
224 #define PCRE_CONFIG_UNICODE_PROPERTIES 6
225 #define PCRE_CONFIG_MATCH_LIMIT_RECURSION 7
226 #define PCRE_CONFIG_BSR 8
227 #define PCRE_CONFIG_JIT 9
228
229 /* Request types for pcre_study(). Do not re-arrange, in order to remain
230 compatible. */
231
232 #define PCRE_STUDY_JIT_COMPILE 0x0001
233
234 /* Bit flags for the pcre_extra structure. Do not re-arrange or redefine
235 these bits, just add new ones on the end, in order to remain compatible. */
236
237 #define PCRE_EXTRA_STUDY_DATA 0x0001
238 #define PCRE_EXTRA_MATCH_LIMIT 0x0002
239 #define PCRE_EXTRA_CALLOUT_DATA 0x0004
240 #define PCRE_EXTRA_TABLES 0x0008
241 #define PCRE_EXTRA_MATCH_LIMIT_RECURSION 0x0010
242 #define PCRE_EXTRA_MARK 0x0020
243 #define PCRE_EXTRA_EXECUTABLE_JIT 0x0040
244
245 /* Types */
246
247 struct real_pcre; /* declaration; the definition is private */
248 typedef struct real_pcre pcre;
249
250 struct real_pcre_jit_stack; /* declaration; the definition is private */
251 typedef struct real_pcre_jit_stack pcre_jit_stack;
252
253 /* When PCRE is compiled as a C++ library, the subject pointer type can be
254 replaced with a custom type. For conventional use, the public interface is a
255 const char *. */
256
257 #ifndef PCRE_SPTR
258 #define PCRE_SPTR const char *
259 #endif
260
261 /* The structure for passing additional data to pcre_exec(). This is defined in
262 such as way as to be extensible. Always add new fields at the end, in order to
263 remain compatible. */
264
265 typedef struct pcre_extra {
266 unsigned long int flags; /* Bits for which fields are set */
267 void *study_data; /* Opaque data from pcre_study() */
268 unsigned long int match_limit; /* Maximum number of calls to match() */
269 void *callout_data; /* Data passed back in callouts */
270 const unsigned char *tables; /* Pointer to character tables */
271 unsigned long int match_limit_recursion; /* Max recursive calls to match() */
272 unsigned char **mark; /* For passing back a mark pointer */
273 void *executable_jit; /* Contains a pointer to a compiled jit code */
274 } pcre_extra;
275
276 /* The structure for passing out data via the pcre_callout_function. We use a
277 structure so that new fields can be added on the end in future versions,
278 without changing the API of the function, thereby allowing old clients to work
279 without modification. */
280
281 typedef struct pcre_callout_block {
282 int version; /* Identifies version of block */
283 /* ------------------------ Version 0 ------------------------------- */
284 int callout_number; /* Number compiled into pattern */
285 int *offset_vector; /* The offset vector */
286 PCRE_SPTR subject; /* The subject being matched */
287 int subject_length; /* The length of the subject */
288 int start_match; /* Offset to start of this match attempt */
289 int current_position; /* Where we currently are in the subject */
290 int capture_top; /* Max current capture */
291 int capture_last; /* Most recently closed capture */
292 void *callout_data; /* Data passed in with the call */
293 /* ------------------- Added for Version 1 -------------------------- */
294 int pattern_position; /* Offset to next item in the pattern */
295 int next_item_length; /* Length of next item in the pattern */
296 /* ------------------- Added for Version 2 -------------------------- */
297 const unsigned char *mark; /* Pointer to current mark or NULL */
298 /* ------------------------------------------------------------------ */
299 } pcre_callout_block;
300
301 /* Indirection for store get and free functions. These can be set to
302 alternative malloc/free functions if required. Special ones are used in the
303 non-recursive case for "frames". There is also an optional callout function
304 that is triggered by the (?) regex item. For Virtual Pascal, these definitions
305 have to take another form. */
306
307 #ifndef VPCOMPAT
308 PCRE_EXP_DECL void *(*pcre_malloc)(size_t);
309 PCRE_EXP_DECL void (*pcre_free)(void *);
310 PCRE_EXP_DECL void *(*pcre_stack_malloc)(size_t);
311 PCRE_EXP_DECL void (*pcre_stack_free)(void *);
312 PCRE_EXP_DECL int (*pcre_callout)(pcre_callout_block *);
313 #else /* VPCOMPAT */
314 PCRE_EXP_DECL void *pcre_malloc(size_t);
315 PCRE_EXP_DECL void pcre_free(void *);
316 PCRE_EXP_DECL void *pcre_stack_malloc(size_t);
317 PCRE_EXP_DECL void pcre_stack_free(void *);
318 PCRE_EXP_DECL int pcre_callout(pcre_callout_block *);
319 #endif /* VPCOMPAT */
320
321 /* User defined callback which provides a stack just before the match starts. */
322
323 typedef pcre_jit_stack *(*pcre_jit_callback)(void *);
324
325 /* Exported PCRE functions */
326
327 PCRE_EXP_DECL pcre *pcre_compile(const char *, int, const char **, int *,
328 const unsigned char *);
329 PCRE_EXP_DECL pcre *pcre_compile2(const char *, int, int *, const char **,
330 int *, const unsigned char *);
331 PCRE_EXP_DECL int pcre_config(int, void *);
332 PCRE_EXP_DECL int pcre_copy_named_substring(const pcre *, const char *,
333 int *, int, const char *, char *, int);
334 PCRE_EXP_DECL int pcre_copy_substring(const char *, int *, int, int, char *,
335 int);
336 PCRE_EXP_DECL int pcre_dfa_exec(const pcre *, const pcre_extra *,
337 const char *, int, int, int, int *, int , int *, int);
338 PCRE_EXP_DECL int pcre_exec(const pcre *, const pcre_extra *, PCRE_SPTR,
339 int, int, int, int *, int);
340 PCRE_EXP_DECL void pcre_free_substring(const char *);
341 PCRE_EXP_DECL void pcre_free_substring_list(const char **);
342 PCRE_EXP_DECL int pcre_fullinfo(const pcre *, const pcre_extra *, int,
343 void *);
344 PCRE_EXP_DECL int pcre_get_named_substring(const pcre *, const char *,
345 int *, int, const char *, const char **);
346 PCRE_EXP_DECL int pcre_get_stringnumber(const pcre *, const char *);
347 PCRE_EXP_DECL int pcre_get_stringtable_entries(const pcre *, const char *,
348 char **, char **);
349 PCRE_EXP_DECL int pcre_get_substring(const char *, int *, int, int,
350 const char **);
351 PCRE_EXP_DECL int pcre_get_substring_list(const char *, int *, int,
352 const char ***);
353 PCRE_EXP_DECL int pcre_info(const pcre *, int *, int *);
354 PCRE_EXP_DECL const unsigned char *pcre_maketables(void);
355 PCRE_EXP_DECL int pcre_refcount(pcre *, int);
356 PCRE_EXP_DECL pcre_extra *pcre_study(const pcre *, int, const char **);
357 PCRE_EXP_DECL void pcre_free_study(pcre_extra *);
358 PCRE_EXP_DECL const char *pcre_version(void);
359
360 /* JIT compiler related functions. */
361
362 PCRE_EXP_DECL pcre_jit_stack *pcre_jit_stack_alloc(int, int);
363 PCRE_EXP_DECL void pcre_jit_stack_free(pcre_jit_stack *);
364 PCRE_EXP_DECL void pcre_assign_jit_stack(pcre_extra *, pcre_jit_callback, void *);
365
366 #ifdef __cplusplus
367 } /* extern "C" */
368 #endif
369
370 #endif /* End of pcre.h */

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