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 "tclInt.h"
  31
  32 /* overrides for regguts.h definitions, if any */
  33 #define FUNCPTR(name, args)     (*name) _ANSI_ARGS_(args)
  34 #define MALLOC(n)               ckalloc(n)
  35 #define FREE(p)                 ckfree(VS(p))
  36 #define REALLOC(p,n)            ckrealloc(VS(p),n)
  37
  38
  39
  40 /*
  41  * Do not insert extras between the "begin" and "end" lines -- this
  42  * chunk is automatically extracted to be fitted into regex.h.
  43  */
  44 /* --- begin --- */
  45 /* ensure certain things don't sneak in from system headers */
  46 #ifdef __REG_WIDE_T
  47 #undef __REG_WIDE_T
  48 #endif
  49 #ifdef __REG_WIDE_COMPILE
  50 #undef __REG_WIDE_COMPILE
  51 #endif
  52 #ifdef __REG_WIDE_EXEC
  53 #undef __REG_WIDE_EXEC
  54 #endif
  55 #ifdef __REG_REGOFF_T
  56 #undef __REG_REGOFF_T
  57 #endif
  58 #ifdef __REG_VOID_T
  59 #undef __REG_VOID_T
  60 #endif
  61 #ifdef __REG_CONST
  62 #undef __REG_CONST
  63 #endif
  64 #ifdef __REG_NOFRONT
  65 #undef __REG_NOFRONT
  66 #endif
  67 #ifdef __REG_NOCHAR
  68 #undef __REG_NOCHAR
  69 #endif
  70 /* interface types */
  71 #define __REG_WIDE_T    Tcl_UniChar
  72 #define __REG_REGOFF_T  long    /* not really right, but good enough... */
  73 #define __REG_VOID_T    VOID
  74 #define __REG_CONST     CONST
  75 /* names and declarations */
  76 #define __REG_WIDE_COMPILE      TclReComp
  77 #define __REG_WIDE_EXEC         TclReExec
  78 #define __REG_NOFRONT           /* don't want regcomp() and regexec() */
  79 #define __REG_NOCHAR            /* or the char versions */
  80 #define regfree         TclReFree
  81 #define regerror        TclReError
  82 /* --- end --- */
  83
  84
  85
  86 /* internal character type and related */
  87 typedef Tcl_UniChar chr;        /* the type itself */
  88 typedef int pchr;               /* what it promotes to */
  89 typedef unsigned uchr;          /* unsigned type that will hold a chr */
  90 typedef int celt;               /* type to hold chr, MCCE number, or NOCELT */
  91 #define NOCELT  (-1)            /* celt value which is not valid chr or MCCE */
  92 #define CHR(c)  (UCHAR(c))      /* turn char literal into chr literal */
  93 #define DIGITVAL(c)     ((c)-'0')       /* turn chr digit into its value */
  94 #if TCL_UTF_MAX > 3
  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 /* functions operating on chr */
 105 #define iscalnum(x)     Tcl_UniCharIsAlnum(x)
 106 #define iscalpha(x)     Tcl_UniCharIsAlpha(x)
 107 #define iscdigit(x)     Tcl_UniCharIsDigit(x)
 108 #define iscspace(x)     Tcl_UniCharIsSpace(x)
 109
 110 /* name the external functions */
 111 #define compile         TclReComp
 112 #define exec            TclReExec
 113
 114 /* enable/disable debugging code (by whether REG_DEBUG is defined or not) */
 115 #if 0           /* no debug unless requested by makefile */
 116 #define REG_DEBUG       /* */
 117 #endif
 118
 119 /* and pick up the standard header */
 120 #include "regex.h"