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* Perl-Compatible Regular Expressions *

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*************************************************/

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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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-----------------------------------------------------------------------------

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Redistribution and use in source and binary forms, with or without

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modification, are permitted provided that the following conditions are met:

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* Redistributions of source code must retain the above copyright notice,

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this list of conditions and the following disclaimer.

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* Redistributions in binary form must reproduce the above copyright

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notice, this list of conditions and the following disclaimer in the

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documentation and/or other materials provided with the distribution.

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* Neither the name of the University of Cambridge nor the names of its

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contributors may be used to endorse or promote products derived from

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this software without specific prior written permission.

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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE

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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

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POSSIBILITY OF SUCH DAMAGE.

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-----------------------------------------------------------------------------

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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, mostly defined by POSIX, but with some extras. */

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#define REG_ICASE 0x0001 /* Maps to PCRE_CASELESS */

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#define REG_NEWLINE 0x0002 /* Maps to PCRE_MULTILINE */

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#define REG_NOTBOL 0x0004 /* Maps to PCRE_NOTBOL */

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#define REG_NOTEOL 0x0008 /* Maps to PCRE_NOTEOL */

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#define REG_DOTALL 0x0010 /* NOT defined by POSIX; maps to PCRE_DOTALL */

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#define REG_NOSUB 0x0020 /* Maps to PCRE_NO_AUTO_CAPTURE */

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#define REG_UTF8 0x0040 /* NOT defined by POSIX; maps to PCRE_UTF8 */

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#define REG_STARTEND 0x0080 /* BSD feature: pass subject string by so,eo */

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#define REG_NOTEMPTY 0x0100 /* NOT defined by POSIX; maps to PCRE_NOTEMPTY */

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#define REG_UNGREEDY 0x0200 /* NOT defined by POSIX; maps to PCRE_UNGREEDY */

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#define REG_UCP 0x0400 /* NOT defined by POSIX; maps to PCRE_UCP */

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/* This is not used by PCRE, but by defining it 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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/* 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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/* When an application links to a PCRE DLL in Windows, the symbols that are

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imported have to be identified as such. When building PCRE, the appropriate

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export settings are needed, and are set in pcreposix.c before including this

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file. */

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#if defined(_WIN32) && !defined(PCRE_STATIC) && !defined(PCREPOSIX_EXP_DECL)

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# define PCREPOSIX_EXP_DECL extern __declspec(dllimport)

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# define PCREPOSIX_EXP_DEFN __declspec(dllimport)

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#endif

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/* By default, we use the standard "extern" declarations. */

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#ifndef PCREPOSIX_EXP_DECL

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# ifdef __cplusplus

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# define PCREPOSIX_EXP_DECL extern "C"

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# define PCREPOSIX_EXP_DEFN extern "C"

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# else

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# define PCREPOSIX_EXP_DECL extern

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# define PCREPOSIX_EXP_DEFN extern

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# endif

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#endif

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/* The functions */

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PCREPOSIX_EXP_DECL int regcomp(regex_t *, const char *, int);

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PCREPOSIX_EXP_DECL int regexec(const regex_t *, const char *, size_t,

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regmatch_t *, int);

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PCREPOSIX_EXP_DECL size_t regerror(int, const regex_t *, char *, size_t);

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PCREPOSIX_EXP_DECL 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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