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/************************************************* |
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* Perl-Compatible Regular Expressions * |
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*************************************************/ |
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/* Copyright (c) 1997-2001 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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