src/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
  29 /* headers if any */
  30 #include "wx/wxchar.h"
  31
  32 /* overrides for regguts.h definitions, if any */
  33 /* regguts only includes standard headers if NULL is not defined, so do it
  34  * ourselves here */
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #include <ctype.h>
  38 #include <limits.h>
  39 #include <string.h>
  40
  41 /*
  42  * Do not insert extras between the "begin" and "end" lines -- this
  43  * chunk is automatically extracted to be fitted into regex.h.
  44  */
  45 /* --- begin --- */
  46 /* ensure certain things don't sneak in from system headers */
  47 #ifdef __REG_WIDE_T
  48 #undef __REG_WIDE_T
  49 #endif
  50 #ifdef __REG_WIDE_COMPILE
  51 #undef __REG_WIDE_COMPILE
  52 #endif
  53 #ifdef __REG_WIDE_EXEC
  54 #undef __REG_WIDE_EXEC
  55 #endif
  56 #ifdef __REG_REGOFF_T
  57 #undef __REG_REGOFF_T
  58 #endif
  59 #ifdef __REG_VOID_T
  60 #undef __REG_VOID_T
  61 #endif
  62 #ifdef __REG_CONST
  63 #undef __REG_CONST
  64 #endif
  65 #ifdef __REG_NOFRONT
  66 #undef __REG_NOFRONT
  67 #endif
  68 #ifdef __REG_NOCHAR
  69 #undef __REG_NOCHAR
  70 #endif
  71 #if wxUSE_UNICODE
  72 #   define  __REG_WIDE_T        wxChar
  73 #   define  __REG_WIDE_COMPILE  re_comp
  74 #   define  __REG_WIDE_EXEC     re_exec
  75 #   define  __REG_NOCHAR        /* don't want the char versions */
  76 #endif
  77 #define __REG_NOFRONT           /* don't want regcomp() and regexec() */
  78 #define _ANSI_ARGS_(x)          x
  79 /* --- end --- */
  80
  81 /* internal character type and related */
  82 typedef wxChar chr;             /* the type itself */
  83 typedef int pchr;               /* what it promotes to */
  84 typedef unsigned uchr;          /* unsigned type that will hold a chr */
  85 typedef int celt;               /* type to hold chr, MCCE number, or NOCELT */
  86 #define NOCELT  (-1)            /* celt value which is not valid chr or MCCE */
  87 #define UCHAR(c) ((unsigned char) (c))
  88 #define CHR(c)  (UCHAR(c))      /* turn char literal into chr literal */
  89 #define DIGITVAL(c) ((c)-'0')   /* turn chr digit into its value */
  90 #if !wxUSE_UNICODE
  91 #   define CHRBITS 8            /* bits in a chr; must not use sizeof */
  92 #   define CHR_MIN 0x00         /* smallest and largest chr; the value */
  93 #   define CHR_MAX 0xff         /*  CHR_MAX-CHR_MIN+1 should fit in uchr */
  94 #elif SIZEOF_WCHAR_T == 4
  95 #   define CHRBITS 32           /* bits in a chr; must not use sizeof */
  96 #   define CHR_MIN 0x00000000   /* smallest and largest chr; the value */
  97 #   define CHR_MAX 0xffffffff   /*  CHR_MAX-CHR_MIN+1 should fit in uchr */
  98 #else
  99 #   define CHRBITS 16           /* bits in a chr; must not use sizeof */
 100 #   define CHR_MIN 0x0000       /* smallest and largest chr; the value */
 101 #   define CHR_MAX 0xffff       /*  CHR_MAX-CHR_MIN+1 should fit in uchr */
 102 #endif
 103
 104 /*
 105  * I'm using isalpha et al. instead of wxIsalpha since BCC 5.5's iswalpha
 106  * seems not to work on Windows 9x? Note that these are only used by the
 107  * lexer, and although they must work for wxChars, they need only return
 108  * true for characters within the ascii range.
 109  */
 110 #define iscalnum(x)     ((wxUChar)(x) < 128 && isalnum(x))
 111 #define iscalpha(x)     ((wxUChar)(x) < 128 && isalpha(x))
 112 #define iscdigit(x)     ((wxUChar)(x) < 128 && isdigit(x))
 113 #define iscspace(x)     ((wxUChar)(x) < 128 && isspace(x))
 114
 115 /* name the external functions */
 116 #define compile         re_comp
 117 #define exec            re_exec
 118
 119 /* enable/disable debugging code (by whether REG_DEBUG is defined or not) */
 120 #if 0           /* no debug unless requested by makefile */
 121 #define REG_DEBUG       /* */
 122 #endif
 123
 124 /* and pick up the standard header */
 125 #include "regex.h"