Adding upstream version 13.4.upstream/13.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 184 insertions, 0 deletions

diff --git a/src/include/regex/regex.h b/src/include/regex/regex.h
new file mode 100644
index 0000000..dc31899
--- /dev/null
+++ b/src/include/regex/regex.h
@@ -0,0 +1,184 @@
+#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.
+ *
+ * src/include/regex/regex.h
+ */
+
+/*
+ * 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_ULOOKAROUND	 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 */
+	Oid			re_collation;	/* Collation that defines LC_CTYPE behavior */
+	/* 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 */
+#define REG_ECOLORS 20			/* too many colors */
+#define REG_CANCEL	21			/* operation cancelled */
+/* 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 */
+/* non-error result codes for pg_regprefix */
+#define REG_PREFIX	(-1)		/* identified a common prefix */
+#define REG_EXACT	(-2)		/* identified an exact match */
+
+
+
+/*
+ * the prototypes for exported functions
+ */
+
+/* regcomp.c */
+extern int	pg_regcomp(regex_t *, const pg_wchar *, size_t, int, Oid);
+extern int	pg_regexec(regex_t *, const pg_wchar *, size_t, size_t, rm_detail_t *, size_t, regmatch_t[], int);
+extern int	pg_regprefix(regex_t *, pg_wchar **, size_t *);
+extern void pg_regfree(regex_t *);
+extern size_t pg_regerror(int, const regex_t *, char *, size_t);
+
+/* regexp.c */
+extern regex_t *RE_compile_and_cache(text *text_re, int cflags, Oid collation);
+extern bool RE_compile_and_execute(text *text_re, char *dat, int dat_len,
+								   int cflags, Oid collation,
+								   int nmatch, regmatch_t *pmatch);
+
+#endif							/* _REGEX_H_ */