| /* |
| * 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> |
| #include <wctype.h> |
| |
| #include "mb/pg_wchar.h" |
| |
| #include "miscadmin.h" /* needed by rstacktoodeep */ |
| |
| |
| /* overrides for regguts.h definitions, if any */ |
| #define FUNCPTR(name, args) (*name) args |
| #define MALLOC(n) palloc_extended((n), MCXT_ALLOC_NO_OOM) |
| #define FREE(p) pfree(VS(p)) |
| #define REALLOC(p,n) repalloc_extended(VS(p),(n), MCXT_ALLOC_NO_OOM) |
| #define INTERRUPT(re) CHECK_FOR_INTERRUPTS() |
| #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" |
