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