Increase pcrs error code offset to prevent overlaps

[privoxy.git] / pcrs.h

diff --git a/pcrs.h b/pcrs.h
index 527c8c9..4b22a1b 100644 (file)
--- a/pcrs.h
+++ b/pcrs.h
@@ -11,6 +11,20 @@
  *
  * Revisions   :
  *    $Log: pcrs.h,v $
+ *    Revision 1.13  2006/07/18 14:48:47  david__schmidt
+ *    Reorganizing the repository: swapping out what was HEAD (the old 3.1 branch)
+ *    with what was really the latest development (the v_3_0_branch branch)
+ *
+ *    Revision 1.11  2002/03/08 14:18:23  oes
+ *    Fixing -Wconversion warnings
+ *
+ *    Revision 1.10  2002/03/08 13:44:48  oes
+ *    Hiding internal functions, preventing double inclusion of pcre.h
+ *
+ *    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
@@ -52,10 +66,12 @@
  *
  *********************************************************************/
 
-#define PCRS_H_VERSION "$Id: pcrs.h,v 1.8 2001/08/15 15:32:50 oes Exp $"
+#define PCRS_H_VERSION "$Id: pcrs.h,v 1.13 2006/07/18 14:48:47 david__schmidt Exp $"
 \f
 
+#ifndef _PCRE_H
 #include <pcre.h>
+#endif
 
 #ifdef __cplusplus
 extern "C" {
@@ -73,12 +89,20 @@ 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 */
 
 /* Flags */
 #define PCRS_GLOBAL          1      /* Job should be applied globally, as with perl's g option */
@@ -93,14 +117,15 @@ 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 */
+  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;
 
+
 /*
  * A match, including all captured subpatterns (submatches)
  * Note: The zeroth is the whole match, the PCRS_MAX_SUBMATCHES + 0th
@@ -109,12 +134,13 @@ 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;
 
-/* A pcrs job */
+
+/* A PCRS job */
 
 typedef struct PCRS_JOB {
   pcre *pattern;                            /* The compiled pcre pattern */
@@ -143,10 +169,6 @@ extern void             pcrs_free_joblist(pcrs_job *joblist);
 /* Info on errors: */
 extern const char *pcrs_strerror(const int error);
 
-/* Expert usage */
-extern int              pcrs_parse_perl_options(const char *optstring, int *flags);
-extern pcrs_substitute *pcrs_compile_replacement(const char *replacement, int trivialflag, int capturecount, int *errptr);
-
 
 #ifdef __cplusplus
 } /* extern "C" */