src/include/regex/regcustom.h

   1 /*
   2  * Copyright (c) 1998, 1999 Henry Spencer.      All rights reserved.
   3  *
   4  * Development of this software was funded, in part, by Cray Research Inc.,
   5  * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
   6  * Corporation, none of whom are responsible for the results.  The author
   7  * thanks all of them.
   8  *
   9  * Redistribution and use in source and binary forms -- with or without
  10  * modification -- are permitted for any purpose, provided that
  11  * redistributions in source form retain this entire copyright notice and
  12  * indicate the origin and nature of any modifications.
  13  *
  14  * I'd appreciate being given credit for this package in the documentation
  15  * of software which uses it, but that is not a requirement.
  16  *
  17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  18  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
  19  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
  20  * HENRY SPENCER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  21  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  22  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  23  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  24  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  25  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  26  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  * $PostgreSQL$
  29  */
  30
  31 /* headers if any */
  32 #include "postgres.h"
  33
  34 #include <ctype.h>
  35 #include <limits.h>
  36
  37 #include "mb/pg_wchar.h"
  38
  39
  40 /* overrides for regguts.h definitions, if any */
  41 #define FUNCPTR(name, args) (*name) args
  42 #define MALLOC(n)               malloc(n)
  43 #define FREE(p)                 free(VS(p))
  44 #define REALLOC(p,n)    realloc(VS(p),n)
  45 #define assert(x)               Assert(x)
  46
  47 /* internal character type and related */
  48 typedef pg_wchar chr;                   /* the type itself */
  49 typedef unsigned uchr;                  /* unsigned type that will hold a chr */
  50 typedef int celt;                               /* type to hold chr, or NOCELT */
  51
  52 #define NOCELT  (-1)                    /* celt value which is not valid chr */
  53 #define CHR(c)  ((unsigned char) (c))   /* turn char literal into chr literal */
  54 #define DIGITVAL(c) ((c)-'0')   /* turn chr digit into its value */
  55 #define CHRBITS 32                              /* bits in a chr; must not use sizeof */
  56 #define CHR_MIN 0x00000000              /* smallest and largest chr; the value */
  57 #define CHR_MAX 0xfffffffe              /* CHR_MAX-CHR_MIN+1 should fit in uchr */
  58
  59 /* functions operating on chr */
  60 #define iscalnum(x) pg_wc_isalnum(x)
  61 #define iscalpha(x) pg_wc_isalpha(x)
  62 #define iscdigit(x) pg_wc_isdigit(x)
  63 #define iscspace(x) pg_wc_isspace(x)
  64
  65 /* and pick up the standard header */
  66 #include "regex.h"