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/*************************************************
* Perl-Compatible Regular Expressions *
*************************************************/
/* Copyright (c) 1997-2000 University of Cambridge */
/**
* @file include/pcreposix.h
* @brief PCRE definitions
*/
#ifndef _PCREPOSIX_H
#define _PCREPOSIX_H
/* This is the header for the POSIX wrapper interface to the PCRE Perl-
Compatible Regular Expression library. It defines the things POSIX says should
be there. I hope. */
/* Have to include stdlib.h in order to ensure that size_t is defined. */
#include <stdlib.h>
/* Allow for C++ users */
#ifdef __cplusplus
extern "C" {
#endif
/* Options defined by POSIX. */
/** Ignore case */
#define REG_ICASE 0x01
/** Don't match newlines with wildcards */
#define REG_NEWLINE 0x02
/** Don't match BOL */
#define REG_NOTBOL 0x04
/** Don't match EOL */
#define REG_NOTEOL 0x08
/* These are not used by PCRE, but by defining them we make it easier
to slot PCRE into existing programs that make POSIX calls. */
/** UNUSED! */
#define REG_EXTENDED 0
/** UNUSED! */
#define REG_NOSUB 0
/* Error values. Not all these are relevant or used by the wrapper. */
enum {
REG_ASSERT = 1, /* internal error ? */
REG_BADBR, /* invalid repeat counts in {} */
REG_BADPAT, /* pattern error */
REG_BADRPT, /* ? * + invalid */
REG_EBRACE, /* unbalanced {} */
REG_EBRACK, /* unbalanced [] */
REG_ECOLLATE, /* collation error - not relevant */
REG_ECTYPE, /* bad class */
REG_EESCAPE, /* bad escape sequence */
REG_EMPTY, /* empty expression */
REG_EPAREN, /* unbalanced () */
REG_ERANGE, /* bad range inside [] */
REG_ESIZE, /* expression too big */
REG_ESPACE, /* failed to get memory */
REG_ESUBREG, /* bad back reference */
REG_INVARG, /* bad argument */
REG_NOMATCH /* match failed */
};
/* The structure representing a compiled regular expression. */
typedef struct {
void *re_pcre;
size_t re_nsub;
size_t re_erroffset;
} regex_t;
/* The structure in which a captured offset is returned. */
typedef int regoff_t;
typedef struct {
regoff_t rm_so;
regoff_t rm_eo;
} regmatch_t;
/* The functions */
extern int regcomp(regex_t *, const char *, int);
extern int regexec(regex_t *, const char *, size_t, regmatch_t *, int);
extern size_t regerror(int, const regex_t *, char *, size_t);
extern void regfree(regex_t *);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* End of pcreposix.h */
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