src/include/regex/regex.h - hawq - Git at Google

 #ifndef _REGEX_H_
 #define _REGEX_H_				/* never again */
 /*
  * regular expressions
  *
  * Copyright (c) 1998, 1999 Henry Spencer.	All rights reserved.
  *
  * Development of this software was funded, in part, by Cray Research Inc.,
  * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
  * Corporation, none of whom are responsible for the results.  The author
  * thanks all of them.
  *
  * Redistribution and use in source and binary forms -- with or without
  * modification -- are permitted for any purpose, provided that
  * redistributions in source form retain this entire copyright notice and
  * indicate the origin and nature of any modifications.
  *
  * I'd appreciate being given credit for this package in the documentation
  * of software which uses it, but that is not a requirement.
  *
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
  * HENRY SPENCER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  * $PostgreSQL: pgsql/src/include/regex/regex.h,v 1.31 2009/06/11 14:49:12 momjian Exp $
  */

 /*
  * Add your own defines, if needed, here.
  */
 #include "mb/pg_wchar.h"

 /*
  * interface types etc.
  */

 /*
  * regoff_t has to be large enough to hold either off_t or ssize_t,
  * and must be signed; it's only a guess that long is suitable.
  */
 typedef long regoff_t;

 /*
  * other interface types
  */

 /* the biggie, a compiled RE (or rather, a front end to same) */
 typedef struct
 {
 	int			re_magic;		/* magic number */
 	size_t		re_nsub;		/* number of subexpressions */
 	long		re_info;		/* information about RE */
 #define  REG_UBACKREF		 000001
 #define  REG_ULOOKAHEAD		 000002
 #define  REG_UBOUNDS	 000004
 #define  REG_UBRACES	 000010
 #define  REG_UBSALNUM		 000020
 #define  REG_UPBOTCH	 000040
 #define  REG_UBBS		 000100
 #define  REG_UNONPOSIX		 000200
 #define  REG_UUNSPEC	 000400
 #define  REG_UUNPORT	 001000
 #define  REG_ULOCALE	 002000
 #define  REG_UEMPTYMATCH	 004000
 #define  REG_UIMPOSSIBLE	 010000
 #define  REG_USHORTEST		 020000
 	int			re_csize;		/* sizeof(character) */
 	char	   *re_endp;		/* backward compatibility kludge */
 	/* the rest is opaque pointers to hidden innards */
 	char	   *re_guts;		/* `char *' is more portable than `void *' */
 	char	   *re_fns;
 } regex_t;

 /* result reporting (may acquire more fields later) */
 typedef struct
 {
 	regoff_t	rm_so;			/* start of substring */
 	regoff_t	rm_eo;			/* end of substring */
 } regmatch_t;

 /* supplementary control and reporting */
 typedef struct
 {
 	regmatch_t	rm_extend;		/* see REG_EXPECT */
 } rm_detail_t;


 /*
  * regex compilation flags
  */
 #define REG_BASIC	000000		/* BREs (convenience) */
 #define REG_EXTENDED	000001	/* EREs */
 #define REG_ADVF	000002		/* advanced features in EREs */
 #define REG_ADVANCED	000003	/* AREs (which are also EREs) */
 #define REG_QUOTE	000004		/* no special characters, none */
 #define REG_NOSPEC	REG_QUOTE	/* historical synonym */
 #define REG_ICASE	000010		/* ignore case */
 #define REG_NOSUB	000020		/* don't care about subexpressions */
 #define REG_EXPANDED	000040	/* expanded format, white space & comments */
 #define REG_NLSTOP	000100		/* \n doesn't match . or [^ ] */
 #define REG_NLANCH	000200		/* ^ matches after \n, $ before */
 #define REG_NEWLINE 000300		/* newlines are line terminators */
 #define REG_PEND	000400		/* ugh -- backward-compatibility hack */
 #define REG_EXPECT	001000		/* report details on partial/limited matches */
 #define REG_BOSONLY 002000		/* temporary kludge for BOS-only matches */
 #define REG_DUMP	004000		/* none of your business :-) */
 #define REG_FAKE	010000		/* none of your business :-) */
 #define REG_PROGRESS	020000	/* none of your business :-) */


 /*
  * regex execution flags
  */
 #define REG_NOTBOL	0001		/* BOS is not BOL */
 #define REG_NOTEOL	0002		/* EOS is not EOL */
 #define REG_STARTEND	0004	/* backward compatibility kludge */
 #define REG_FTRACE	0010		/* none of your business */
 #define REG_MTRACE	0020		/* none of your business */
 #define REG_SMALL	0040		/* none of your business */


 /*
  * error reporting
  * Be careful if modifying the list of error codes -- the table used by
  * regerror() is generated automatically from this file!
  */
 #define REG_OKAY	 0			/* no errors detected */
 #define REG_NOMATCH  1			/* failed to match */
 #define REG_BADPAT	 2			/* invalid regexp */
 #define REG_ECOLLATE	 3		/* invalid collating element */
 #define REG_ECTYPE	 4			/* invalid character class */
 #define REG_EESCAPE  5			/* invalid escape \ sequence */
 #define REG_ESUBREG  6			/* invalid backreference number */
 #define REG_EBRACK	 7			/* brackets [] not balanced */
 #define REG_EPAREN	 8			/* parentheses () not balanced */
 #define REG_EBRACE	 9			/* braces {} not balanced */
 #define REG_BADBR	10			/* invalid repetition count(s) */
 #define REG_ERANGE	11			/* invalid character range */
 #define REG_ESPACE	12			/* out of memory */
 #define REG_BADRPT	13			/* quantifier operand invalid */
 #define REG_ASSERT	15			/* "can't happen" -- you found a bug */
 #define REG_INVARG	16			/* invalid argument to regex function */
 #define REG_MIXED	17			/* character widths of regex and string differ */
 #define REG_BADOPT	18			/* invalid embedded option */
 #define REG_ETOOBIG 19			/* regular expression is too complex */
 /* two specials for debugging and testing */
 #define REG_ATOI	101			/* convert error-code name to number */
 #define REG_ITOA	102			/* convert error-code number to name */


 /*
  * the prototypes for exported functions
  */
 extern int	pg_regcomp(regex_t *, const pg_wchar *, size_t, int);
 extern int	pg_regexec(regex_t *, const pg_wchar *, size_t, size_t, rm_detail_t *, size_t, regmatch_t[], int);
 extern void pg_regfree(regex_t *);
 extern size_t pg_regerror(int, const regex_t *, char *, size_t);

 /*
  * guc configuration variables
  */
 extern int	regex_flavor;

 #endif   /* _REGEX_H_ */
	#ifndef _REGEX_H_
	#define _REGEX_H_ /* never again */
	/*
	* regular expressions
	*
	* Copyright (c) 1998, 1999 Henry Spencer. All rights reserved.
	*
	* Development of this software was funded, in part, by Cray Research Inc.,
	* UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
	* Corporation, none of whom are responsible for the results. The author
	* thanks all of them.
	*
	* Redistribution and use in source and binary forms -- with or without
	* modification -- are permitted for any purpose, provided that
	* redistributions in source form retain this entire copyright notice and
	* indicate the origin and nature of any modifications.
	*
	* I'd appreciate being given credit for this package in the documentation
	* of software which uses it, but that is not a requirement.
	*
	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
	* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
	* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
	* HENRY SPENCER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
	* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
	* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*
	* $PostgreSQL: pgsql/src/include/regex/regex.h,v 1.31 2009/06/11 14:49:12 momjian Exp $
	*/

	/*
	* Add your own defines, if needed, here.
	*/
	#include "mb/pg_wchar.h"

	/*
	* interface types etc.
	*/

	/*
	* regoff_t has to be large enough to hold either off_t or ssize_t,
	* and must be signed; it's only a guess that long is suitable.
	*/
	typedef long regoff_t;

	/*
	* other interface types
	*/

	/* the biggie, a compiled RE (or rather, a front end to same) */
	typedef struct
	{
	int re_magic; /* magic number */
	size_t re_nsub; /* number of subexpressions */
	long re_info; /* information about RE */
	#define REG_UBACKREF 000001
	#define REG_ULOOKAHEAD 000002
	#define REG_UBOUNDS 000004
	#define REG_UBRACES 000010
	#define REG_UBSALNUM 000020
	#define REG_UPBOTCH 000040
	#define REG_UBBS 000100
	#define REG_UNONPOSIX 000200
	#define REG_UUNSPEC 000400
	#define REG_UUNPORT 001000
	#define REG_ULOCALE 002000
	#define REG_UEMPTYMATCH 004000
	#define REG_UIMPOSSIBLE 010000
	#define REG_USHORTEST 020000
	int re_csize; /* sizeof(character) */
	char re_endp; / backward compatibility kludge */
	/* the rest is opaque pointers to hidden innards */
	char re_guts; / `char ' is more portable than `void ' */
	char *re_fns;
	} regex_t;

	/* result reporting (may acquire more fields later) */
	typedef struct
	{
	regoff_t rm_so; /* start of substring */
	regoff_t rm_eo; /* end of substring */
	} regmatch_t;

	/* supplementary control and reporting */
	typedef struct
	{
	regmatch_t rm_extend; /* see REG_EXPECT */
	} rm_detail_t;



	/*
	* regex compilation flags
	*/
	#define REG_BASIC 000000 /* BREs (convenience) */
	#define REG_EXTENDED 000001 /* EREs */
	#define REG_ADVF 000002 /* advanced features in EREs */
	#define REG_ADVANCED 000003 /* AREs (which are also EREs) */
	#define REG_QUOTE 000004 /* no special characters, none */
	#define REG_NOSPEC REG_QUOTE /* historical synonym */
	#define REG_ICASE 000010 /* ignore case */
	#define REG_NOSUB 000020 /* don't care about subexpressions */
	#define REG_EXPANDED 000040 /* expanded format, white space & comments */
	#define REG_NLSTOP 000100 /* \n doesn't match . or [^ ] */
	#define REG_NLANCH 000200 /* ^ matches after \n, $ before */
	#define REG_NEWLINE 000300 /* newlines are line terminators */
	#define REG_PEND 000400 /* ugh -- backward-compatibility hack */
	#define REG_EXPECT 001000 /* report details on partial/limited matches */
	#define REG_BOSONLY 002000 /* temporary kludge for BOS-only matches */
	#define REG_DUMP 004000 /* none of your business :-) */
	#define REG_FAKE 010000 /* none of your business :-) */
	#define REG_PROGRESS 020000 /* none of your business :-) */



	/*
	* regex execution flags
	*/
	#define REG_NOTBOL 0001 /* BOS is not BOL */
	#define REG_NOTEOL 0002 /* EOS is not EOL */
	#define REG_STARTEND 0004 /* backward compatibility kludge */
	#define REG_FTRACE 0010 /* none of your business */
	#define REG_MTRACE 0020 /* none of your business */
	#define REG_SMALL 0040 /* none of your business */


	/*
	* error reporting
	* Be careful if modifying the list of error codes -- the table used by
	* regerror() is generated automatically from this file!
	*/
	#define REG_OKAY 0 /* no errors detected */
	#define REG_NOMATCH 1 /* failed to match */
	#define REG_BADPAT 2 /* invalid regexp */
	#define REG_ECOLLATE 3 /* invalid collating element */
	#define REG_ECTYPE 4 /* invalid character class */
	#define REG_EESCAPE 5 /* invalid escape \ sequence */
	#define REG_ESUBREG 6 /* invalid backreference number */
	#define REG_EBRACK 7 /* brackets [] not balanced */
	#define REG_EPAREN 8 /* parentheses () not balanced */
	#define REG_EBRACE 9 /* braces {} not balanced */
	#define REG_BADBR 10 /* invalid repetition count(s) */
	#define REG_ERANGE 11 /* invalid character range */
	#define REG_ESPACE 12 /* out of memory */
	#define REG_BADRPT 13 /* quantifier operand invalid */
	#define REG_ASSERT 15 /* "can't happen" -- you found a bug */
	#define REG_INVARG 16 /* invalid argument to regex function */
	#define REG_MIXED 17 /* character widths of regex and string differ */
	#define REG_BADOPT 18 /* invalid embedded option */
	#define REG_ETOOBIG 19 /* regular expression is too complex */
	/* two specials for debugging and testing */
	#define REG_ATOI 101 /* convert error-code name to number */
	#define REG_ITOA 102 /* convert error-code number to name */



	/*
	* the prototypes for exported functions
	*/
	extern int pg_regcomp(regex_t , const pg_wchar , size_t, int);
	extern int pg_regexec(regex_t , const pg_wchar , size_t, size_t, rm_detail_t *, size_t, regmatch_t[], int);
	extern void pg_regfree(regex_t *);
	extern size_t pg_regerror(int, const regex_t , char , size_t);

	/*
	* guc configuration variables
	*/
	extern int regex_flavor;

	#endif /* _REGEX_H_ */