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- /*
- * 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/regcustom.h
- */
-
- /* headers if any */
-
- /*
- * It's against Postgres coding conventions to include postgres.h in a
- * header file, but we allow the violation here because the regexp library
- * files specifically intend this file to supply application-dependent
- * headers, and are careful to include this file before anything else.
- */
- #include "postgres.h"
-
- #include <ctype.h>
- #include <limits.h>
-
- /*
- * towlower() and friends should be in <wctype.h>, but some pre-C99 systems
- * declare them in <wchar.h>.
- */
- #ifdef HAVE_WCHAR_H
- #include <wchar.h>
- #endif
- #ifdef HAVE_WCTYPE_H
- #include <wctype.h>
- #endif
-
- #include "mb/pg_wchar.h"
-
- #include "miscadmin.h" /* needed by rcancelrequested/rstacktoodeep */
-
-
- /* overrides for regguts.h definitions, if any */
- #define FUNCPTR(name, args) (*name) args
- #define MALLOC(n) malloc(n)
- #define FREE(p) free(VS(p))
- #define REALLOC(p,n) realloc(VS(p),n)
- #define assert(x) Assert(x)
-
- /* internal character type and related */
- typedef pg_wchar chr; /* the type itself */
- typedef unsigned uchr; /* unsigned type that will hold a chr */
-
- #define CHR(c) ((unsigned char) (c)) /* turn char literal into chr literal */
- #define DIGITVAL(c) ((c)-'0') /* turn chr digit into its value */
- #define CHRBITS 32 /* bits in a chr; must not use sizeof */
- #define CHR_MIN 0x00000000 /* smallest and largest chr; the value */
- #define CHR_MAX 0x7ffffffe /* CHR_MAX-CHR_MIN+1 must fit in an int, and
- * CHR_MAX+1 must fit in a chr variable */
-
- /*
- * Check if a chr value is in range. Ideally we'd just write this as
- * ((c) >= CHR_MIN && (c) <= CHR_MAX)
- * However, if chr is unsigned and CHR_MIN is zero, the first part of that
- * is a no-op, and certain overly-nannyish compilers give warnings about it.
- * So we leave that out here. If you want to make chr signed and/or CHR_MIN
- * not zero, redefine this macro as above. Callers should assume that the
- * macro may multiply evaluate its argument, even though it does not today.
- */
- #define CHR_IS_IN_RANGE(c) ((c) <= CHR_MAX)
-
- /*
- * MAX_SIMPLE_CHR is the cutoff between "simple" and "complicated" processing
- * in the color map logic. It should usually be chosen high enough to ensure
- * that all common characters are <= MAX_SIMPLE_CHR. However, very large
- * values will be counterproductive since they cause more regex setup time.
- * Also, small values can be helpful for testing the high-color-map logic
- * with plain old ASCII input.
- */
- #define MAX_SIMPLE_CHR 0x7FF /* suitable value for Unicode */
-
- /* functions operating on chr */
- #define iscalnum(x) pg_wc_isalnum(x)
- #define iscalpha(x) pg_wc_isalpha(x)
- #define iscdigit(x) pg_wc_isdigit(x)
- #define iscspace(x) pg_wc_isspace(x)
-
- /* and pick up the standard header */
- #include "regex.h"
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