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pcre.h

/*************************************************
*       Perl-Compatible Regular Expressions      *
*************************************************/

/* In its original form, this is the .in file that is transformed by
"configure" into pcre.h.

           Copyright (c) 1997-2004 University of Cambridge

-----------------------------------------------------------------------------
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

    * Redistributions of source code must retain the above copyright notice,
      this list of conditions and the following disclaimer.

    * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.

    * Neither the name of the University of Cambridge nor the names of its
      contributors may be used to endorse or promote products derived from
      this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
-----------------------------------------------------------------------------
*/

#ifndef _PCRE_H
#define _PCRE_H

/* The file pcre.h is build by "configure". Do not edit it; instead
make changes to pcre.in. */

#define PCRE_MAJOR          5
#define PCRE_MINOR          0
#define PCRE_DATE           13-Sep-2004

/* Win32 uses DLL by default */

#ifdef _WIN32
#  ifdef PCRE_DEFINITION
#    ifdef DLL_EXPORT
#      define PCRE_DATA_SCOPE __declspec(dllexport)
#    endif
#  else
#    ifndef PCRE_STATIC
#      define PCRE_DATA_SCOPE extern __declspec(dllimport)
#    endif
#  endif
#endif
#ifndef PCRE_DATA_SCOPE
#  define PCRE_DATA_SCOPE     extern
#endif

/* Have to include stdlib.h in order to ensure that size_t is defined;
it is needed here for malloc. */

#include <stdlib.h>

/* Allow for C++ users */

#ifdef __cplusplus
extern "C" {
#endif

/* Options */

#define PCRE_CASELESS           0x0001
#define PCRE_MULTILINE          0x0002
#define PCRE_DOTALL             0x0004
#define PCRE_EXTENDED           0x0008
#define PCRE_ANCHORED           0x0010
#define PCRE_DOLLAR_ENDONLY     0x0020
#define PCRE_EXTRA              0x0040
#define PCRE_NOTBOL             0x0080
#define PCRE_NOTEOL             0x0100
#define PCRE_UNGREEDY           0x0200
#define PCRE_NOTEMPTY           0x0400
#define PCRE_UTF8               0x0800
#define PCRE_NO_AUTO_CAPTURE    0x1000
#define PCRE_NO_UTF8_CHECK      0x2000
#define PCRE_AUTO_CALLOUT       0x4000
#define PCRE_PARTIAL            0x8000

/* Exec-time and get/set-time error codes */

#define PCRE_ERROR_NOMATCH         (-1)
#define PCRE_ERROR_NULL            (-2)
#define PCRE_ERROR_BADOPTION       (-3)
#define PCRE_ERROR_BADMAGIC        (-4)
#define PCRE_ERROR_UNKNOWN_NODE    (-5)
#define PCRE_ERROR_NOMEMORY        (-6)
#define PCRE_ERROR_NOSUBSTRING     (-7)
#define PCRE_ERROR_MATCHLIMIT      (-8)
#define PCRE_ERROR_CALLOUT         (-9)  /* Never used by PCRE itself */
#define PCRE_ERROR_BADUTF8        (-10)
#define PCRE_ERROR_BADUTF8_OFFSET (-11)
#define PCRE_ERROR_PARTIAL        (-12)
#define PCRE_ERROR_BADPARTIAL     (-13)
#define PCRE_ERROR_INTERNAL       (-14)
#define PCRE_ERROR_BADCOUNT       (-15)

/* Request types for pcre_fullinfo() */

#define PCRE_INFO_OPTIONS            0
#define PCRE_INFO_SIZE               1
#define PCRE_INFO_CAPTURECOUNT       2
#define PCRE_INFO_BACKREFMAX         3
#define PCRE_INFO_FIRSTBYTE          4
#define PCRE_INFO_FIRSTCHAR          4  /* For backwards compatibility */
#define PCRE_INFO_FIRSTTABLE         5
#define PCRE_INFO_LASTLITERAL        6
#define PCRE_INFO_NAMEENTRYSIZE      7
#define PCRE_INFO_NAMECOUNT          8
#define PCRE_INFO_NAMETABLE          9
#define PCRE_INFO_STUDYSIZE         10
#define PCRE_INFO_DEFAULT_TABLES    11

/* Request types for pcre_config() */

#define PCRE_CONFIG_UTF8                    0
#define PCRE_CONFIG_NEWLINE                 1
#define PCRE_CONFIG_LINK_SIZE               2
#define PCRE_CONFIG_POSIX_MALLOC_THRESHOLD  3
#define PCRE_CONFIG_MATCH_LIMIT             4
#define PCRE_CONFIG_STACKRECURSE            5
#define PCRE_CONFIG_UNICODE_PROPERTIES      6

/* Bit flags for the pcre_extra structure */

#define PCRE_EXTRA_STUDY_DATA          0x0001
#define PCRE_EXTRA_MATCH_LIMIT         0x0002
#define PCRE_EXTRA_CALLOUT_DATA        0x0004
#define PCRE_EXTRA_TABLES              0x0008

/* Types */

struct real_pcre;                 /* declaration; the definition is private  */
typedef struct real_pcre pcre;

/* The structure for passing additional data to pcre_exec(). This is defined in
such as way as to be extensible. Always add new fields at the end, in order to
remain compatible. */

typedef struct pcre_extra {
  unsigned long int flags;        /* Bits for which fields are set */
  void *study_data;               /* Opaque data from pcre_study() */
  unsigned long int match_limit;  /* Maximum number of calls to match() */
  void *callout_data;             /* Data passed back in callouts */
  const unsigned char *tables;    /* Pointer to character tables */
} pcre_extra;

/* The structure for passing out data via the pcre_callout_function. We use a
structure so that new fields can be added on the end in future versions,
without changing the API of the function, thereby allowing old clients to work
without modification. */

typedef struct pcre_callout_block {
  int          version;           /* Identifies version of block */
  /* ------------------------ Version 0 ------------------------------- */
  int          callout_number;    /* Number compiled into pattern */
  int         *offset_vector;     /* The offset vector */
  const char  *subject;           /* The subject being matched */
  int          subject_length;    /* The length of the subject */
  int          start_match;       /* Offset to start of this match attempt */
  int          current_position;  /* Where we currently are in the subject */
  int          capture_top;       /* Max current capture */
  int          capture_last;      /* Most recently closed capture */
  void        *callout_data;      /* Data passed in with the call */
  /* ------------------- Added for Version 1 -------------------------- */
  int          pattern_position;  /* Offset to next item in the pattern */
  int          next_item_length;  /* Length of next item in the pattern */
  /* ------------------------------------------------------------------ */
} pcre_callout_block;

/* Indirection for store get and free functions. These can be set to
alternative malloc/free functions if required. Special ones are used in the
non-recursive case for "frames". There is also an optional callout function
that is triggered by the (?) regex item. Some magic is required for Win32 DLL;
it is null on other OS. For Virtual Pascal, these have to be different again.
*/

#ifndef VPCOMPAT
PCRE_DATA_SCOPE void *(*pcre_malloc)(size_t);
PCRE_DATA_SCOPE void  (*pcre_free)(void *);
PCRE_DATA_SCOPE void *(*pcre_stack_malloc)(size_t);
PCRE_DATA_SCOPE void  (*pcre_stack_free)(void *);
PCRE_DATA_SCOPE int   (*pcre_callout)(pcre_callout_block *);
#else   /* VPCOMPAT */
extern void *pcre_malloc(size_t);
extern void  pcre_free(void *);
extern void *pcre_stack_malloc(size_t);
extern void  pcre_stack_free(void *);
extern int   pcre_callout(pcre_callout_block *);
#endif  /* VPCOMPAT */

/* Exported PCRE functions */

extern pcre *pcre_compile(const char *, int, const char **,
              int *, const unsigned char *);
extern int  pcre_config(int, void *);
extern int  pcre_copy_named_substring(const pcre *, const char *,
              int *, int, const char *, char *, int);
extern int  pcre_copy_substring(const char *, int *, int, int,
              char *, int);
extern int  pcre_exec(const pcre *, const pcre_extra *,
              const char *, int, int, int, int *, int);
extern void pcre_free_substring(const char *);
extern void pcre_free_substring_list(const char **);
extern int  pcre_fullinfo(const pcre *, const pcre_extra *, int,
              void *);
extern int  pcre_get_named_substring(const pcre *, const char *,
              int *, int,  const char *, const char **);
extern int  pcre_get_stringnumber(const pcre *, const char *);
extern int  pcre_get_substring(const char *, int *, int, int,
              const char **);
extern int  pcre_get_substring_list(const char *, int *, int,
              const char ***);
extern int  pcre_info(const pcre *, int *, int *);
extern const unsigned char *pcre_maketables(void);
extern pcre_extra *pcre_study(const pcre *, int, const char **);
extern const char *pcre_version(void);

#ifdef __cplusplus
}  /* extern "C" */
#endif

#endif /* End of pcre.h */

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