X-Git-Url: http://www.privoxy.org/gitweb/?p=privoxy.git;a=blobdiff_plain;f=pcrs.h;h=9b6acd8aae4dee2c5eb646fb5a88231a55b7396e;hp=e6ab0e3e1e8b406411ed578e77b566f1f6fc57f1;hb=6c7e0a4e1d05932996735350e0f9292d194574cd;hpb=2c4a5a9be699d2b6219a1e2630a0c2820dc78bef diff --git a/pcrs.h b/pcrs.h index e6ab0e3e..9b6acd8a 100644 --- a/pcrs.h +++ b/pcrs.h @@ -9,55 +9,10 @@ * * Copyright : see pcrs.c * - * Revisions : - * $Log: pcrs.h,v $ - * Revision 1.9 2001/08/18 11:35:29 oes - * - Introduced pcrs_strerror() - * - added pcrs_execute_list() - * - * Revision 1.8 2001/08/15 15:32:50 oes - * Replaced the hard limit for the maximum number of matches - * by dynamic reallocation - * - * Revision 1.7 2001/08/05 13:13:11 jongfoster - * Making parameters "const" where possible. - * - * Revision 1.6 2001/07/29 18:52:06 jongfoster - * Renaming _PCRS_H, and adding "extern C {}" - * - * Revision 1.5 2001/07/18 17:27:00 oes - * Changed interface; Cosmetics - * - * Revision 1.4 2001/06/29 13:33:19 oes - * - Cleaned up, commented and adapted to reflect the - * changes in pcrs.c - * - Introduced the PCRS_* flags - * - * Revision 1.3 2001/06/09 10:58:57 jongfoster - * Removing a single unused #define which referenced BUFSIZ - * - * Revision 1.2 2001/05/25 11:03:55 oes - * Added sanity check for NULL jobs to pcrs_exec_substitution - * - * Revision 1.1.1.1 2001/05/15 13:59:02 oes - * Initial import of version 2.9.3 source tree - * - * Revision 1.4 2001/05/11 01:57:02 rodney - * Added new file header standard w/RCS control tags. - * - * revision 1.3 2001/05/08 02:38:13 rodney - * Changed C++ "//" style comment to C style comments. - * - * revision 1.2 2001/04/30 02:39:24 rodney - * Made this pcrs.h file conditionally included. - * - * revision 1.1 2001/04/16 21:10:38 rodney - * Initial checkin - * *********************************************************************/ -#define PCRS_H_VERSION "$Id: pcrs.h,v 1.9 2001/08/18 11:35:29 oes Exp $" - +#define PCRS_H_VERSION "$Id: pcrs.h,v 1.16 2007/04/30 15:02:19 fabiankeil Exp $" + #ifndef _PCRE_H #include @@ -79,12 +34,22 @@ extern "C" { #define PCRS_MAX_MATCH_INIT 40 /* Initial amount of matches that can be stored in global searches */ #define PCRS_MAX_MATCH_GROW 1.6 /* Factor by which storage for matches is extended if exhausted */ -/* Error codes */ -#define PCRS_ERR_NOMEM -10 /* Failed to acquire memory. */ -#define PCRS_ERR_CMDSYNTAX -11 /* Syntax of s///-command */ -#define PCRS_ERR_STUDY -12 /* pcre error while studying the pattern */ -#define PCRS_ERR_BADJOB -13 /* NULL job pointer, pattern or substitute */ -#define PCRS_WARN_BADREF -14 /* Backreference out of range */ +/* + * PCRS error codes + * + * They are supposed to be handled together with PCRE error + * codes and have to start with an offset to prevent overlaps. + * + * PCRE 6.7 uses error codes from -1 to -21, PCRS error codes + * below -100 should be safe for a while. + */ +#define PCRS_ERR_NOMEM -100 /* Failed to acquire memory. */ +#define PCRS_ERR_CMDSYNTAX -101 /* Syntax of s///-command */ +#define PCRS_ERR_STUDY -102 /* pcre error while studying the pattern */ +#define PCRS_ERR_BADJOB -103 /* NULL job pointer, pattern or substitute */ +#define PCRS_WARN_BADREF -104 /* Backreference out of range */ +#define PCRS_WARN_TRUNCATION -105 /* At least one pcrs variable was too big, + * only the first part was used. */ /* Flags */ #define PCRS_GLOBAL 1 /* Job should be applied globally, as with perl's g option */ @@ -99,12 +64,13 @@ extern "C" { /* A compiled substitute */ typedef struct { - char *text; /* The plaintext part of the substitute, with all backreferences stripped */ - int backrefs; /* The number of backreferences */ - int block_offset[PCRS_MAX_SUBMATCHES]; /* Array with the offsets of all plaintext blocks in text */ - int block_length[PCRS_MAX_SUBMATCHES]; /* Array with the lengths of all plaintext blocks in text */ - int backref[PCRS_MAX_SUBMATCHES]; /* Array with the backref number for all plaintext block borders */ - int backref_count[PCRS_MAX_SUBMATCHES + 2]; /* Array with the number of references to each backref index */ + char *text; /* The plaintext part of the substitute, with all backreferences stripped */ + size_t length; /* The substitute may not be a valid C string so we can't rely on strlen(). */ + int backrefs; /* The number of backreferences */ + int block_offset[PCRS_MAX_SUBMATCHES]; /* Array with the offsets of all plaintext blocks in text */ + size_t block_length[PCRS_MAX_SUBMATCHES]; /* Array with the lengths of all plaintext blocks in text */ + int backref[PCRS_MAX_SUBMATCHES]; /* Array with the backref number for all plaintext block borders */ + int backref_count[PCRS_MAX_SUBMATCHES + 2]; /* Array with the number of references to each backref index */ } pcrs_substitute; @@ -116,9 +82,9 @@ typedef struct { */ typedef struct { - int submatches; /* Number of captured subpatterns */ - int submatch_offset[PCRS_MAX_SUBMATCHES + 2]; /* Offset for each submatch in the subject */ - int submatch_length[PCRS_MAX_SUBMATCHES + 2]; /* Length of each submatch in the subject */ + int submatches; /* Number of captured subpatterns */ + int submatch_offset[PCRS_MAX_SUBMATCHES + 2]; /* Offset for each submatch in the subject */ + size_t submatch_length[PCRS_MAX_SUBMATCHES + 2]; /* Length of each submatch in the subject */ } pcrs_match; @@ -141,7 +107,7 @@ typedef struct PCRS_JOB { /* Main usage */ extern pcrs_job *pcrs_compile_command(const char *command, int *errptr); extern pcrs_job *pcrs_compile(const char *pattern, const char *substitute, const char *options, int *errptr); -extern int pcrs_execute(pcrs_job *job, char *subject, size_t subject_length, char **result, size_t *result_length); +extern int pcrs_execute(pcrs_job *job, const char *subject, size_t subject_length, char **result, size_t *result_length); extern int pcrs_execute_list(pcrs_job *joblist, char *subject, size_t subject_length, char **result, size_t *result_length); /* Freeing jobs */ @@ -151,6 +117,25 @@ extern void pcrs_free_joblist(pcrs_job *joblist); /* Info on errors: */ extern const char *pcrs_strerror(const int error); +extern int pcrs_job_is_dynamic(char *job); +extern char pcrs_get_delimiter(const char *string); +extern char *pcrs_execute_single_command(const char *subject, const char *pcrs_command, int *hits); +/* + * Variable/value pair for dynamic pcrs commands. + */ +struct pcrs_variable +{ + const char *name; + char *value; + int static_value; +}; + +extern pcrs_job *pcrs_compile_dynamic_command(char *pcrs_command, const struct pcrs_variable v[], int *error); + +/* Only relevant for maximum pcrs variable size */ +#ifndef PCRS_BUFFER_SIZE +#define PCRS_BUFFER_SIZE 4000 +#endif /* ndef PCRS_BUFFER_SIZE */ #ifdef __cplusplus } /* extern "C" */