lib/libc/locale/runeglue.c

   1 /*      $NetBSD: runeglue.c,v 1.13.2.1 2009/01/04 17:02:20 christos Exp $       */
   2
   3 /*-
   4  * Copyright (c)1999 Citrus Project,
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  *
  28  *      Id: runeglue.c,v 1.7 2000/12/22 22:52:29 itojun Exp
  29  */
  30
  31 /*
  32  * Glue code to hide "rune" facility from user programs.
  33  * This is important to keep backward/future compatibility.
  34  */
  35
  36 #include <sys/cdefs.h>
  37 #if defined(LIBC_SCCS) && !defined(lint)
  38 __RCSID("$NetBSD: runeglue.c,v 1.13.2.1 2009/01/04 17:02:20 christos Exp $");
  39 #endif /* LIBC_SCCS and not lint */
  40
  41 #define _CTYPE_PRIVATE
  42 #include <assert.h>
  43 #include <limits.h>
  44 #include <stdio.h>
  45 #include <sys/types.h>
  46 #include <ctype.h>
  47 #include <stdlib.h>
  48 #include <string.h>
  49 #include <wchar.h>
  50 #include "citrus_module.h"
  51 #include "citrus_ctype.h"
  52 #include "rune.h"
  53 #include "rune_local.h"
  54
  55 #if EOF != -1
  56 #error "EOF != -1"
  57 #endif
  58 #if _CACHED_RUNES != 256
  59 #error "_CACHED_RUNES != 256"
  60 #endif
  61
  62 int
  63 __runetable_to_netbsd_ctype(rl)
  64         _RuneLocale *rl;
  65 {
  66         int i, ch;
  67         unsigned char *new_ctype;
  68         short *new_toupper, *new_tolower;
  69
  70         _DIAGASSERT(rl != NULL);
  71
  72         new_ctype = malloc(sizeof(*new_ctype) * (1 + _CTYPE_NUM_CHARS));
  73         if (!new_ctype)
  74                 return -1;
  75         new_toupper = malloc(sizeof(*new_toupper) * (1 + 256));
  76         if (!new_toupper) {
  77                 free(new_ctype);
  78                 return -1;
  79         }
  80         new_tolower = malloc(sizeof(*new_tolower) * (1 + 256));
  81         if (!new_tolower) {
  82                 free(new_ctype);
  83                 free(new_toupper);
  84                 return -1;
  85         }
  86
  87         memset(new_ctype, 0, sizeof(*new_ctype) * (1 + _CTYPE_NUM_CHARS));
  88         memset(new_toupper, 0, sizeof(*new_toupper) * (1 + 256));
  89         memset(new_tolower, 0, sizeof(*new_tolower) * (1 + 256));
  90
  91         new_ctype[0] = 0;
  92         new_toupper[0] = EOF;
  93         new_tolower[0] = EOF;
  94         for (i = 0; i < _CTYPE_NUM_CHARS; i++) {
  95                 new_ctype[i + 1] = 0;
  96                 new_toupper[i + 1] = i;
  97                 new_tolower[i + 1] = i;
  98
  99                 /* XXX: FIXME
 100                  * expected 'x' == L'x', see defect report #279
 101                  * http://www.open-std.org/JTC1/SC22/WG14/www/docs/dr_279.htm
 102                  */
 103                 if (_citrus_ctype_wctob(rl->rl_citrus_ctype, (wint_t)i, &ch)) {
 104                         free(new_ctype);
 105                         free(new_toupper);
 106                         free(new_tolower);
 107                         return -1;
 108                 }
 109                 if (ch == EOF)
 110                         continue;
 111
 112                 if (rl->rl_runetype[i] & _CTYPE_U)
 113                         new_ctype[i + 1] |= _U;
 114                 if (rl->rl_runetype[i] & _CTYPE_L)
 115                         new_ctype[i + 1] |= _L;
 116                 if (rl->rl_runetype[i] & _CTYPE_D)
 117                         new_ctype[i + 1] |= _N;
 118                 if (rl->rl_runetype[i] & _CTYPE_S)
 119                         new_ctype[i + 1] |= _S;
 120                 if (rl->rl_runetype[i] & _CTYPE_P)
 121                         new_ctype[i + 1] |= _P;
 122                 if (rl->rl_runetype[i] & _CTYPE_C)
 123                         new_ctype[i + 1] |= _C;
 124                 if (rl->rl_runetype[i] & _CTYPE_X)
 125                         new_ctype[i + 1] |= _X;
 126                 /*
 127                  * TWEAK!  _B has been used incorrectly (or with older
 128                  * declaration) in ctype.h isprint() macro.
 129                  * _B does not mean isblank, it means "isprint && !isgraph".
 130                  * the following is okay since isblank() was hardcoded in
 131                  * function (i.e. isblank() is inherently locale unfriendly).
 132                  */
 133 #if 1
 134                 if ((rl->rl_runetype[i] & (_CTYPE_R | _CTYPE_G)) == _CTYPE_R)
 135                         new_ctype[i + 1] |= _B;
 136 #else
 137                 if (rl->rl_runetype[i] & _CTYPE_B)
 138                         new_ctype[i + 1] |= _B;
 139 #endif
 140                 new_toupper[i + 1] = (short)rl->rl_mapupper[i];
 141                 new_tolower[i + 1] = (short)rl->rl_maplower[i];
 142         }
 143
 144         /* LINTED const cast */
 145         rl->rl_ctype_tab = (const unsigned char *)new_ctype;
 146         /* LINTED const cast */
 147         rl->rl_toupper_tab = (const short *)new_toupper;
 148         /* LINTED const cast */
 149         rl->rl_tolower_tab = (const short *)new_tolower;
 150
 151         return 0;
 152 }