1 #ifndef PCRS_H_INCLUDED
2 #define PCRS_H_INCLUDED
4 /*********************************************************************
6 * File : $Source: /cvsroot/ijbswa/current/pcrs.h,v $
8 * Purpose : Header file for pcrs.c
10 * Copyright : see pcrs.c
14 * Revision 1.10 2002/03/08 13:44:48 oes
15 * Hiding internal functions, preventing double inclusion of pcre.h
17 * Revision 1.9 2001/08/18 11:35:29 oes
18 * - Introduced pcrs_strerror()
19 * - added pcrs_execute_list()
21 * Revision 1.8 2001/08/15 15:32:50 oes
22 * Replaced the hard limit for the maximum number of matches
23 * by dynamic reallocation
25 * Revision 1.7 2001/08/05 13:13:11 jongfoster
26 * Making parameters "const" where possible.
28 * Revision 1.6 2001/07/29 18:52:06 jongfoster
29 * Renaming _PCRS_H, and adding "extern C {}"
31 * Revision 1.5 2001/07/18 17:27:00 oes
32 * Changed interface; Cosmetics
34 * Revision 1.4 2001/06/29 13:33:19 oes
35 * - Cleaned up, commented and adapted to reflect the
37 * - Introduced the PCRS_* flags
39 * Revision 1.3 2001/06/09 10:58:57 jongfoster
40 * Removing a single unused #define which referenced BUFSIZ
42 * Revision 1.2 2001/05/25 11:03:55 oes
43 * Added sanity check for NULL jobs to pcrs_exec_substitution
45 * Revision 1.1.1.1 2001/05/15 13:59:02 oes
46 * Initial import of version 2.9.3 source tree
48 * Revision 1.4 2001/05/11 01:57:02 rodney
49 * Added new file header standard w/RCS control tags.
51 * revision 1.3 2001/05/08 02:38:13 rodney
52 * Changed C++ "//" style comment to C style comments.
54 * revision 1.2 2001/04/30 02:39:24 rodney
55 * Made this pcrs.h file conditionally included.
57 * revision 1.1 2001/04/16 21:10:38 rodney
60 *********************************************************************/
62 #define PCRS_H_VERSION "$Id: pcrs.h,v 1.10 2002/03/08 13:44:48 oes Exp $"
81 #define PCRS_MAX_SUBMATCHES 33 /* Maximum number of capturing subpatterns allowed. MUST be <= 99! FIXME: Should be dynamic */
82 #define PCRS_MAX_MATCH_INIT 40 /* Initial amount of matches that can be stored in global searches */
83 #define PCRS_MAX_MATCH_GROW 1.6 /* Factor by which storage for matches is extended if exhausted */
86 #define PCRS_ERR_NOMEM -10 /* Failed to acquire memory. */
87 #define PCRS_ERR_CMDSYNTAX -11 /* Syntax of s///-command */
88 #define PCRS_ERR_STUDY -12 /* pcre error while studying the pattern */
89 #define PCRS_ERR_BADJOB -13 /* NULL job pointer, pattern or substitute */
90 #define PCRS_WARN_BADREF -14 /* Backreference out of range */
93 #define PCRS_GLOBAL 1 /* Job should be applied globally, as with perl's g option */
94 #define PCRS_TRIVIAL 2 /* Backreferences in the substitute are ignored */
95 #define PCRS_SUCCESS 4 /* Job did previously match */
102 /* A compiled substitute */
105 char *text; /* The plaintext part of the substitute, with all backreferences stripped */
106 int backrefs; /* The number of backreferences */
107 int block_offset[PCRS_MAX_SUBMATCHES]; /* Array with the offsets of all plaintext blocks in text */
108 size_t block_length[PCRS_MAX_SUBMATCHES]; /* Array with the lengths of all plaintext blocks in text */
109 int backref[PCRS_MAX_SUBMATCHES]; /* Array with the backref number for all plaintext block borders */
110 int backref_count[PCRS_MAX_SUBMATCHES + 2]; /* Array with the number of references to each backref index */
115 * A match, including all captured subpatterns (submatches)
116 * Note: The zeroth is the whole match, the PCRS_MAX_SUBMATCHES + 0th
117 * is the range before the match, the PCRS_MAX_SUBMATCHES + 1th is the
118 * range after the match.
122 int submatches; /* Number of captured subpatterns */
123 int submatch_offset[PCRS_MAX_SUBMATCHES + 2]; /* Offset for each submatch in the subject */
124 size_t submatch_length[PCRS_MAX_SUBMATCHES + 2]; /* Length of each submatch in the subject */
130 typedef struct PCRS_JOB {
131 pcre *pattern; /* The compiled pcre pattern */
132 pcre_extra *hints; /* The pcre hints for the pattern */
133 int options; /* The pcre options (numeric) */
134 int flags; /* The pcrs and user flags (see "Flags" above) */
135 pcrs_substitute *substitute; /* The compiled pcrs substitute */
136 struct PCRS_JOB *next; /* Pointer for chaining jobs to joblists */
145 extern pcrs_job *pcrs_compile_command(const char *command, int *errptr);
146 extern pcrs_job *pcrs_compile(const char *pattern, const char *substitute, const char *options, int *errptr);
147 extern int pcrs_execute(pcrs_job *job, char *subject, size_t subject_length, char **result, size_t *result_length);
148 extern int pcrs_execute_list(pcrs_job *joblist, char *subject, size_t subject_length, char **result, size_t *result_length);
151 extern pcrs_job *pcrs_free_job(pcrs_job *job);
152 extern void pcrs_free_joblist(pcrs_job *joblist);
154 /* Info on errors: */
155 extern const char *pcrs_strerror(const int error);
162 #endif /* ndef PCRS_H_INCLUDED */