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Revision 518 - (show annotations) (download)
Tue May 18 15:47:01 2010 UTC (3 years, 10 months ago) by ph10
File size: 13077 byte(s)
Added PCRE_UCP and related stuff to make \w etc use Unicode properties.

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) 1997-2010 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. */
100
101 #define PCRE_CASELESS 0x00000001
102 #define PCRE_MULTILINE 0x00000002
103 #define PCRE_DOTALL 0x00000004
104 #define PCRE_EXTENDED 0x00000008
105 #define PCRE_ANCHORED 0x00000010
106 #define PCRE_DOLLAR_ENDONLY 0x00000020
107 #define PCRE_EXTRA 0x00000040
108 #define PCRE_NOTBOL 0x00000080
109 #define PCRE_NOTEOL 0x00000100
110 #define PCRE_UNGREEDY 0x00000200
111 #define PCRE_NOTEMPTY 0x00000400
112 #define PCRE_UTF8 0x00000800
113 #define PCRE_NO_AUTO_CAPTURE 0x00001000
114 #define PCRE_NO_UTF8_CHECK 0x00002000
115 #define PCRE_AUTO_CALLOUT 0x00004000
116 #define PCRE_PARTIAL_SOFT 0x00008000
117 #define PCRE_PARTIAL 0x00008000 /* Backwards compatible synonym */
118 #define PCRE_DFA_SHORTEST 0x00010000
119 #define PCRE_DFA_RESTART 0x00020000
120 #define PCRE_FIRSTLINE 0x00040000
121 #define PCRE_DUPNAMES 0x00080000
122 #define PCRE_NEWLINE_CR 0x00100000
123 #define PCRE_NEWLINE_LF 0x00200000
124 #define PCRE_NEWLINE_CRLF 0x00300000
125 #define PCRE_NEWLINE_ANY 0x00400000
126 #define PCRE_NEWLINE_ANYCRLF 0x00500000
127 #define PCRE_BSR_ANYCRLF 0x00800000
128 #define PCRE_BSR_UNICODE 0x01000000
129 #define PCRE_JAVASCRIPT_COMPAT 0x02000000
130 #define PCRE_NO_START_OPTIMIZE 0x04000000
131 #define PCRE_NO_START_OPTIMISE 0x04000000
132 #define PCRE_PARTIAL_HARD 0x08000000
133 #define PCRE_NOTEMPTY_ATSTART 0x10000000
134 #define PCRE_UCP 0x20000000
135
136 /* Exec-time and get/set-time error codes */
137
138 #define PCRE_ERROR_NOMATCH (-1)
139 #define PCRE_ERROR_NULL (-2)
140 #define PCRE_ERROR_BADOPTION (-3)
141 #define PCRE_ERROR_BADMAGIC (-4)
142 #define PCRE_ERROR_UNKNOWN_OPCODE (-5)
143 #define PCRE_ERROR_UNKNOWN_NODE (-5) /* For backward compatibility */
144 #define PCRE_ERROR_NOMEMORY (-6)
145 #define PCRE_ERROR_NOSUBSTRING (-7)
146 #define PCRE_ERROR_MATCHLIMIT (-8)
147 #define PCRE_ERROR_CALLOUT (-9) /* Never used by PCRE itself */
148 #define PCRE_ERROR_BADUTF8 (-10)
149 #define PCRE_ERROR_BADUTF8_OFFSET (-11)
150 #define PCRE_ERROR_PARTIAL (-12)
151 #define PCRE_ERROR_BADPARTIAL (-13)
152 #define PCRE_ERROR_INTERNAL (-14)
153 #define PCRE_ERROR_BADCOUNT (-15)
154 #define PCRE_ERROR_DFA_UITEM (-16)
155 #define PCRE_ERROR_DFA_UCOND (-17)
156 #define PCRE_ERROR_DFA_UMLIMIT (-18)
157 #define PCRE_ERROR_DFA_WSSIZE (-19)
158 #define PCRE_ERROR_DFA_RECURSE (-20)
159 #define PCRE_ERROR_RECURSIONLIMIT (-21)
160 #define PCRE_ERROR_NULLWSLIMIT (-22) /* No longer actually used */
161 #define PCRE_ERROR_BADNEWLINE (-23)
162
163 /* Request types for pcre_fullinfo() */
164
165 #define PCRE_INFO_OPTIONS 0
166 #define PCRE_INFO_SIZE 1
167 #define PCRE_INFO_CAPTURECOUNT 2
168 #define PCRE_INFO_BACKREFMAX 3
169 #define PCRE_INFO_FIRSTBYTE 4
170 #define PCRE_INFO_FIRSTCHAR 4 /* For backwards compatibility */
171 #define PCRE_INFO_FIRSTTABLE 5
172 #define PCRE_INFO_LASTLITERAL 6
173 #define PCRE_INFO_NAMEENTRYSIZE 7
174 #define PCRE_INFO_NAMECOUNT 8
175 #define PCRE_INFO_NAMETABLE 9
176 #define PCRE_INFO_STUDYSIZE 10
177 #define PCRE_INFO_DEFAULT_TABLES 11
178 #define PCRE_INFO_OKPARTIAL 12
179 #define PCRE_INFO_JCHANGED 13
180 #define PCRE_INFO_HASCRORLF 14
181 #define PCRE_INFO_MINLENGTH 15
182
183 /* Request types for pcre_config(). Do not re-arrange, in order to remain
184 compatible. */
185
186 #define PCRE_CONFIG_UTF8 0
187 #define PCRE_CONFIG_NEWLINE 1
188 #define PCRE_CONFIG_LINK_SIZE 2
189 #define PCRE_CONFIG_POSIX_MALLOC_THRESHOLD 3
190 #define PCRE_CONFIG_MATCH_LIMIT 4
191 #define PCRE_CONFIG_STACKRECURSE 5
192 #define PCRE_CONFIG_UNICODE_PROPERTIES 6
193 #define PCRE_CONFIG_MATCH_LIMIT_RECURSION 7
194 #define PCRE_CONFIG_BSR 8
195
196 /* Bit flags for the pcre_extra structure. Do not re-arrange or redefine
197 these bits, just add new ones on the end, in order to remain compatible. */
198
199 #define PCRE_EXTRA_STUDY_DATA 0x0001
200 #define PCRE_EXTRA_MATCH_LIMIT 0x0002
201 #define PCRE_EXTRA_CALLOUT_DATA 0x0004
202 #define PCRE_EXTRA_TABLES 0x0008
203 #define PCRE_EXTRA_MATCH_LIMIT_RECURSION 0x0010
204 #define PCRE_EXTRA_MARK 0x0020
205
206 /* Types */
207
208 struct real_pcre; /* declaration; the definition is private */
209 typedef struct real_pcre pcre;
210
211 /* When PCRE is compiled as a C++ library, the subject pointer type can be
212 replaced with a custom type. For conventional use, the public interface is a
213 const char *. */
214
215 #ifndef PCRE_SPTR
216 #define PCRE_SPTR const char *
217 #endif
218
219 /* The structure for passing additional data to pcre_exec(). This is defined in
220 such as way as to be extensible. Always add new fields at the end, in order to
221 remain compatible. */
222
223 typedef struct pcre_extra {
224 unsigned long int flags; /* Bits for which fields are set */
225 void *study_data; /* Opaque data from pcre_study() */
226 unsigned long int match_limit; /* Maximum number of calls to match() */
227 void *callout_data; /* Data passed back in callouts */
228 const unsigned char *tables; /* Pointer to character tables */
229 unsigned long int match_limit_recursion; /* Max recursive calls to match() */
230 unsigned char **mark; /* For passing back a mark pointer */
231 } pcre_extra;
232
233 /* The structure for passing out data via the pcre_callout_function. We use a
234 structure so that new fields can be added on the end in future versions,
235 without changing the API of the function, thereby allowing old clients to work
236 without modification. */
237
238 typedef struct pcre_callout_block {
239 int version; /* Identifies version of block */
240 /* ------------------------ Version 0 ------------------------------- */
241 int callout_number; /* Number compiled into pattern */
242 int *offset_vector; /* The offset vector */
243 PCRE_SPTR subject; /* The subject being matched */
244 int subject_length; /* The length of the subject */
245 int start_match; /* Offset to start of this match attempt */
246 int current_position; /* Where we currently are in the subject */
247 int capture_top; /* Max current capture */
248 int capture_last; /* Most recently closed capture */
249 void *callout_data; /* Data passed in with the call */
250 /* ------------------- Added for Version 1 -------------------------- */
251 int pattern_position; /* Offset to next item in the pattern */
252 int next_item_length; /* Length of next item in the pattern */
253 /* ------------------------------------------------------------------ */
254 } pcre_callout_block;
255
256 /* Indirection for store get and free functions. These can be set to
257 alternative malloc/free functions if required. Special ones are used in the
258 non-recursive case for "frames". There is also an optional callout function
259 that is triggered by the (?) regex item. For Virtual Pascal, these definitions
260 have to take another form. */
261
262 #ifndef VPCOMPAT
263 PCRE_EXP_DECL void *(*pcre_malloc)(size_t);
264 PCRE_EXP_DECL void (*pcre_free)(void *);
265 PCRE_EXP_DECL void *(*pcre_stack_malloc)(size_t);
266 PCRE_EXP_DECL void (*pcre_stack_free)(void *);
267 PCRE_EXP_DECL int (*pcre_callout)(pcre_callout_block *);
268 #else /* VPCOMPAT */
269 PCRE_EXP_DECL void *pcre_malloc(size_t);
270 PCRE_EXP_DECL void pcre_free(void *);
271 PCRE_EXP_DECL void *pcre_stack_malloc(size_t);
272 PCRE_EXP_DECL void pcre_stack_free(void *);
273 PCRE_EXP_DECL int pcre_callout(pcre_callout_block *);
274 #endif /* VPCOMPAT */
275
276 /* Exported PCRE functions */
277
278 PCRE_EXP_DECL pcre *pcre_compile(const char *, int, const char **, int *,
279 const unsigned char *);
280 PCRE_EXP_DECL pcre *pcre_compile2(const char *, int, int *, const char **,
281 int *, const unsigned char *);
282 PCRE_EXP_DECL int pcre_config(int, void *);
283 PCRE_EXP_DECL int pcre_copy_named_substring(const pcre *, const char *,
284 int *, int, const char *, char *, int);
285 PCRE_EXP_DECL int pcre_copy_substring(const char *, int *, int, int, char *,
286 int);
287 PCRE_EXP_DECL int pcre_dfa_exec(const pcre *, const pcre_extra *,
288 const char *, int, int, int, int *, int , int *, int);
289 PCRE_EXP_DECL int pcre_exec(const pcre *, const pcre_extra *, PCRE_SPTR,
290 int, int, int, int *, int);
291 PCRE_EXP_DECL void pcre_free_substring(const char *);
292 PCRE_EXP_DECL void pcre_free_substring_list(const char **);
293 PCRE_EXP_DECL int pcre_fullinfo(const pcre *, const pcre_extra *, int,
294 void *);
295 PCRE_EXP_DECL int pcre_get_named_substring(const pcre *, const char *,
296 int *, int, const char *, const char **);
297 PCRE_EXP_DECL int pcre_get_stringnumber(const pcre *, const char *);
298 PCRE_EXP_DECL int pcre_get_stringtable_entries(const pcre *, const char *,
299 char **, char **);
300 PCRE_EXP_DECL int pcre_get_substring(const char *, int *, int, int,
301 const char **);
302 PCRE_EXP_DECL int pcre_get_substring_list(const char *, int *, int,
303 const char ***);
304 PCRE_EXP_DECL int pcre_info(const pcre *, int *, int *);
305 PCRE_EXP_DECL const unsigned char *pcre_maketables(void);
306 PCRE_EXP_DECL int pcre_refcount(pcre *, int);
307 PCRE_EXP_DECL pcre_extra *pcre_study(const pcre *, int, const char **);
308 PCRE_EXP_DECL const char *pcre_version(void);
309
310 #ifdef __cplusplus
311 } /* extern "C" */
312 #endif
313
314 #endif /* End of pcre.h */

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