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16017f6d78
Draft 3 of IEEE 1003.1 200x, "2.2 The Compilation Environment" All identifiers that begin with an underscore and either an uppercase letter or another underscore are always reserved for any use by the implementation.
89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
/*************************************************
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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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