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Revision 89 - (hide annotations) (download)
Sat Feb 24 21:41:27 2007 UTC (7 years, 4 months ago) by nigel
File MIME type: text/plain
File size: 11912 byte(s)
Load pcre-6.6 into code/trunk.

1 nigel 87 /*************************************************
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) 1997-2005 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     /* NOTES FOR FUTURE MAINTAINERS: Do not use numbers with leading zeros, because
45     they may be treated as octal constants. The PCRE_PRERELEASE feature is for
46     identifying release candidates. It might be defined as -RC2, for example. In
47     real releases, it should be defined empty. Do not change the alignment of these
48     statments. The code in ./configure greps out the version numbers by using "cut"
49     to get values from column 29 onwards. These are substituted into pcre-config
50     and libpcre.pc. The values are not put into configure.ac and substituted here
51     (which would simplify this issue) because that makes life harder for those who
52     cannot run ./configure. As it now stands, this file need not be edited in that
53     circumstance. */
54    
55     #define PCRE_MAJOR 6
56 nigel 89 #define PCRE_MINOR 6
57 nigel 87 #define PCRE_PRERELEASE
58 nigel 89 #define PCRE_DATE 06-Feb-2006
59 nigel 87
60 nigel 89 /* Win32 uses DLL by default; it needs special stuff for exported functions
61     when building PCRE. */
62 nigel 87
63     #ifdef _WIN32
64     # ifdef PCRE_DEFINITION
65     # ifdef DLL_EXPORT
66     # define PCRE_DATA_SCOPE __declspec(dllexport)
67     # endif
68     # else
69     # ifndef PCRE_STATIC
70     # define PCRE_DATA_SCOPE extern __declspec(dllimport)
71     # endif
72     # endif
73     #endif
74    
75 nigel 89 /* Otherwise, we use the standard "extern". */
76 nigel 87
77     #ifndef PCRE_DATA_SCOPE
78     # ifdef __cplusplus
79     # define PCRE_DATA_SCOPE extern "C"
80     # else
81     # define PCRE_DATA_SCOPE extern
82     # endif
83     #endif
84    
85     /* Have to include stdlib.h in order to ensure that size_t is defined;
86     it is needed here for malloc. */
87    
88     #include <stdlib.h>
89    
90     /* Allow for C++ users */
91    
92     #ifdef __cplusplus
93     extern "C" {
94     #endif
95    
96     /* Options */
97    
98     #define PCRE_CASELESS 0x00000001
99     #define PCRE_MULTILINE 0x00000002
100     #define PCRE_DOTALL 0x00000004
101     #define PCRE_EXTENDED 0x00000008
102     #define PCRE_ANCHORED 0x00000010
103     #define PCRE_DOLLAR_ENDONLY 0x00000020
104     #define PCRE_EXTRA 0x00000040
105     #define PCRE_NOTBOL 0x00000080
106     #define PCRE_NOTEOL 0x00000100
107     #define PCRE_UNGREEDY 0x00000200
108     #define PCRE_NOTEMPTY 0x00000400
109     #define PCRE_UTF8 0x00000800
110     #define PCRE_NO_AUTO_CAPTURE 0x00001000
111     #define PCRE_NO_UTF8_CHECK 0x00002000
112     #define PCRE_AUTO_CALLOUT 0x00004000
113     #define PCRE_PARTIAL 0x00008000
114     #define PCRE_DFA_SHORTEST 0x00010000
115     #define PCRE_DFA_RESTART 0x00020000
116     #define PCRE_FIRSTLINE 0x00040000
117    
118     /* Exec-time and get/set-time error codes */
119    
120     #define PCRE_ERROR_NOMATCH (-1)
121     #define PCRE_ERROR_NULL (-2)
122     #define PCRE_ERROR_BADOPTION (-3)
123     #define PCRE_ERROR_BADMAGIC (-4)
124     #define PCRE_ERROR_UNKNOWN_NODE (-5)
125     #define PCRE_ERROR_NOMEMORY (-6)
126     #define PCRE_ERROR_NOSUBSTRING (-7)
127     #define PCRE_ERROR_MATCHLIMIT (-8)
128     #define PCRE_ERROR_CALLOUT (-9) /* Never used by PCRE itself */
129     #define PCRE_ERROR_BADUTF8 (-10)
130     #define PCRE_ERROR_BADUTF8_OFFSET (-11)
131     #define PCRE_ERROR_PARTIAL (-12)
132     #define PCRE_ERROR_BADPARTIAL (-13)
133     #define PCRE_ERROR_INTERNAL (-14)
134     #define PCRE_ERROR_BADCOUNT (-15)
135     #define PCRE_ERROR_DFA_UITEM (-16)
136     #define PCRE_ERROR_DFA_UCOND (-17)
137     #define PCRE_ERROR_DFA_UMLIMIT (-18)
138     #define PCRE_ERROR_DFA_WSSIZE (-19)
139     #define PCRE_ERROR_DFA_RECURSE (-20)
140     #define PCRE_ERROR_RECURSIONLIMIT (-21)
141    
142     /* Request types for pcre_fullinfo() */
143    
144     #define PCRE_INFO_OPTIONS 0
145     #define PCRE_INFO_SIZE 1
146     #define PCRE_INFO_CAPTURECOUNT 2
147     #define PCRE_INFO_BACKREFMAX 3
148     #define PCRE_INFO_FIRSTBYTE 4
149     #define PCRE_INFO_FIRSTCHAR 4 /* For backwards compatibility */
150     #define PCRE_INFO_FIRSTTABLE 5
151     #define PCRE_INFO_LASTLITERAL 6
152     #define PCRE_INFO_NAMEENTRYSIZE 7
153     #define PCRE_INFO_NAMECOUNT 8
154     #define PCRE_INFO_NAMETABLE 9
155     #define PCRE_INFO_STUDYSIZE 10
156     #define PCRE_INFO_DEFAULT_TABLES 11
157    
158     /* Request types for pcre_config(). Do not re-arrange, in order to remain
159     compatible. */
160    
161     #define PCRE_CONFIG_UTF8 0
162     #define PCRE_CONFIG_NEWLINE 1
163     #define PCRE_CONFIG_LINK_SIZE 2
164     #define PCRE_CONFIG_POSIX_MALLOC_THRESHOLD 3
165     #define PCRE_CONFIG_MATCH_LIMIT 4
166     #define PCRE_CONFIG_STACKRECURSE 5
167     #define PCRE_CONFIG_UNICODE_PROPERTIES 6
168     #define PCRE_CONFIG_MATCH_LIMIT_RECURSION 7
169    
170     /* Bit flags for the pcre_extra structure. Do not re-arrange or redefine
171     these bits, just add new ones on the end, in order to remain compatible. */
172    
173     #define PCRE_EXTRA_STUDY_DATA 0x0001
174     #define PCRE_EXTRA_MATCH_LIMIT 0x0002
175     #define PCRE_EXTRA_CALLOUT_DATA 0x0004
176     #define PCRE_EXTRA_TABLES 0x0008
177     #define PCRE_EXTRA_MATCH_LIMIT_RECURSION 0x0010
178    
179     /* Types */
180    
181     struct real_pcre; /* declaration; the definition is private */
182     typedef struct real_pcre pcre;
183    
184     /* When PCRE is compiled as a C++ library, the subject pointer type can be
185     replaced with a custom type. For conventional use, the public interface is a
186     const char *. */
187    
188     #ifndef PCRE_SPTR
189     #define PCRE_SPTR const char *
190     #endif
191    
192     /* The structure for passing additional data to pcre_exec(). This is defined in
193     such as way as to be extensible. Always add new fields at the end, in order to
194     remain compatible. */
195    
196     typedef struct pcre_extra {
197     unsigned long int flags; /* Bits for which fields are set */
198     void *study_data; /* Opaque data from pcre_study() */
199     unsigned long int match_limit; /* Maximum number of calls to match() */
200     void *callout_data; /* Data passed back in callouts */
201     const unsigned char *tables; /* Pointer to character tables */
202     unsigned long int match_limit_recursion; /* Max recursive calls to match() */
203     } pcre_extra;
204    
205     /* The structure for passing out data via the pcre_callout_function. We use a
206     structure so that new fields can be added on the end in future versions,
207     without changing the API of the function, thereby allowing old clients to work
208     without modification. */
209    
210     typedef struct pcre_callout_block {
211     int version; /* Identifies version of block */
212     /* ------------------------ Version 0 ------------------------------- */
213     int callout_number; /* Number compiled into pattern */
214     int *offset_vector; /* The offset vector */
215     PCRE_SPTR subject; /* The subject being matched */
216     int subject_length; /* The length of the subject */
217     int start_match; /* Offset to start of this match attempt */
218     int current_position; /* Where we currently are in the subject */
219     int capture_top; /* Max current capture */
220     int capture_last; /* Most recently closed capture */
221     void *callout_data; /* Data passed in with the call */
222     /* ------------------- Added for Version 1 -------------------------- */
223     int pattern_position; /* Offset to next item in the pattern */
224     int next_item_length; /* Length of next item in the pattern */
225     /* ------------------------------------------------------------------ */
226     } pcre_callout_block;
227    
228     /* Indirection for store get and free functions. These can be set to
229     alternative malloc/free functions if required. Special ones are used in the
230     non-recursive case for "frames". There is also an optional callout function
231     that is triggered by the (?) regex item. For Virtual Pascal, these definitions
232     have to take another form. */
233    
234     #ifndef VPCOMPAT
235     PCRE_DATA_SCOPE void *(*pcre_malloc)(size_t);
236     PCRE_DATA_SCOPE void (*pcre_free)(void *);
237     PCRE_DATA_SCOPE void *(*pcre_stack_malloc)(size_t);
238     PCRE_DATA_SCOPE void (*pcre_stack_free)(void *);
239     PCRE_DATA_SCOPE int (*pcre_callout)(pcre_callout_block *);
240     #else /* VPCOMPAT */
241     PCRE_DATA_SCOPE void *pcre_malloc(size_t);
242     PCRE_DATA_SCOPE void pcre_free(void *);
243     PCRE_DATA_SCOPE void *pcre_stack_malloc(size_t);
244     PCRE_DATA_SCOPE void pcre_stack_free(void *);
245     PCRE_DATA_SCOPE int pcre_callout(pcre_callout_block *);
246     #endif /* VPCOMPAT */
247    
248     /* Exported PCRE functions */
249    
250     PCRE_DATA_SCOPE pcre *pcre_compile(const char *, int, const char **, int *,
251     const unsigned char *);
252     PCRE_DATA_SCOPE pcre *pcre_compile2(const char *, int, int *, const char **,
253     int *, const unsigned char *);
254     PCRE_DATA_SCOPE int pcre_config(int, void *);
255     PCRE_DATA_SCOPE int pcre_copy_named_substring(const pcre *, const char *,
256     int *, int, const char *, char *, int);
257     PCRE_DATA_SCOPE int pcre_copy_substring(const char *, int *, int, int, char *,
258     int);
259     PCRE_DATA_SCOPE int pcre_dfa_exec(const pcre *, const pcre_extra *,
260     const char *, int, int, int, int *, int , int *, int);
261     PCRE_DATA_SCOPE int pcre_exec(const pcre *, const pcre_extra *, PCRE_SPTR,
262     int, int, int, int *, int);
263     PCRE_DATA_SCOPE void pcre_free_substring(const char *);
264     PCRE_DATA_SCOPE void pcre_free_substring_list(const char **);
265     PCRE_DATA_SCOPE int pcre_fullinfo(const pcre *, const pcre_extra *, int,
266     void *);
267     PCRE_DATA_SCOPE int pcre_get_named_substring(const pcre *, const char *,
268     int *, int, const char *, const char **);
269     PCRE_DATA_SCOPE int pcre_get_stringnumber(const pcre *, const char *);
270     PCRE_DATA_SCOPE int pcre_get_substring(const char *, int *, int, int,
271     const char **);
272     PCRE_DATA_SCOPE int pcre_get_substring_list(const char *, int *, int,
273     const char ***);
274     PCRE_DATA_SCOPE int pcre_info(const pcre *, int *, int *);
275     PCRE_DATA_SCOPE const unsigned char *pcre_maketables(void);
276     PCRE_DATA_SCOPE int pcre_refcount(pcre *, int);
277     PCRE_DATA_SCOPE pcre_extra *pcre_study(const pcre *, int, const char **);
278     PCRE_DATA_SCOPE const char *pcre_version(void);
279    
280     #ifdef __cplusplus
281     } /* extern "C" */
282     #endif
283    
284     #endif /* End of pcre.h */

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