lib/libc/locale/runeglue.c

   1 /*      $NetBSD: src/lib/libc/locale/runeglue.c,v 1.10 2003/03/10 21:18:49 tshiozak Exp $       */
   2 /*      $DragonFly: src/lib/libc/locale/runeglue.c,v 1.3 2005/09/17 14:39:44 joerg Exp $ */
   3
   4 /*-
   5  * Copyright (c)1999 Citrus Project,
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  *      Id: runeglue.c,v 1.7 2000/12/22 22:52:29 itojun Exp
  30  */
  31
  32 /*
  33  * Glue code to hide "rune" facility from user programs.
  34  * This is important to keep backward/future compatibility.
  35  */
  36
  37 #define _CTYPE_PRIVATE
  38
  39 #include <sys/types.h>
  40 #include <assert.h>
  41 #include <ctype.h>
  42 #include <limits.h>
  43 #include <stdio.h>
  44 #include <stdlib.h>
  45 #include <string.h>
  46 #include <wchar.h>
  47 #include "rune.h"
  48 #include "rune_local.h"
  49
  50 #if EOF != -1
  51 #error "EOF != -1"
  52 #endif
  53 #if _CACHED_RUNES != 256
  54 #error "_CACHED_RUNES != 256"
  55 #endif
  56
  57 int
  58 __runetable_to_netbsd_ctype(const char *locale)
  59 {
  60         int i;
  61         uint16_t *new_ctype;
  62         int16_t *new_toupper, *new_tolower;
  63
  64         _DIAGASSERT(locale != NULL);
  65
  66         /* set to C locale, to ease failure case handling */
  67         if (__libc_ctype_ != __libc_C_ctype_) {
  68                 /* LINTED const castaway */
  69                 free(__DECONST(void *, __libc_ctype_));
  70                 __libc_ctype_ = __libc_C_ctype_;
  71         }
  72         if (__libc_toupper_tab_ != __libc_C_toupper_) {
  73                 /* LINTED const castaway */
  74                 free(__DECONST(void *, __libc_toupper_tab_));
  75                 __libc_toupper_tab_ = __libc_C_toupper_;
  76         }
  77         if (__libc_tolower_tab_ != __libc_C_tolower_) {
  78                 /* LINTED const castaway */
  79                 free(__DECONST(void *, __libc_tolower_tab_));
  80                 __libc_tolower_tab_ = __libc_C_tolower_;
  81         }
  82
  83         if (strcmp(locale, "C") == 0 || strcmp(locale, "POSIX") == 0)
  84                 return(0);
  85
  86         new_ctype = malloc(sizeof(*new_ctype) * (1 + _CTYPE_NUM_CHARS));
  87         if (new_ctype == NULL)
  88                 return(-1);
  89         new_toupper = malloc(sizeof(*new_toupper) * (1 + 256));
  90         if (new_toupper == NULL) {
  91                 free(new_ctype);
  92                 return(-1);
  93         }
  94         new_tolower = malloc(sizeof(*new_tolower) * (1 + 256));
  95         if (new_tolower == NULL) {
  96                 free(new_ctype);
  97                 free(new_toupper);
  98                 return(-1);
  99         }
 100
 101         memset(new_ctype, 0, sizeof(*new_ctype) * (1 + _CTYPE_NUM_CHARS));
 102         memset(new_toupper, 0, sizeof(*new_toupper) * (1 + 256));
 103         memset(new_tolower, 0, sizeof(*new_tolower) * (1 + 256));
 104
 105         new_ctype[0] = 0;
 106         new_toupper[0] = EOF;
 107         new_tolower[0] = EOF;
 108         for (i = 0; i < _CTYPE_NUM_CHARS; i++) {
 109                 new_ctype[i + 1] = 0;
 110                 if (_CurrentRuneLocale->rl_runetype[i] & _CTYPE_U)
 111                         new_ctype[i + 1] |= _CTYPEMASK_U;
 112                 if (_CurrentRuneLocale->rl_runetype[i] & _CTYPE_L)
 113                         new_ctype[i + 1] |= _CTYPEMASK_L;
 114                 if (_CurrentRuneLocale->rl_runetype[i] & _CTYPE_D)
 115                         new_ctype[i + 1] |= _CTYPEMASK_D;
 116                 if (_CurrentRuneLocale->rl_runetype[i] & _CTYPE_S)
 117                         new_ctype[i + 1] |= _CTYPEMASK_S;
 118                 if (_CurrentRuneLocale->rl_runetype[i] & _CTYPE_P)
 119                         new_ctype[i + 1] |= _CTYPEMASK_P;
 120                 if (_CurrentRuneLocale->rl_runetype[i] & _CTYPE_C)
 121                         new_ctype[i + 1] |= _CTYPEMASK_C;
 122                 if (_CurrentRuneLocale->rl_runetype[i] & _CTYPE_X)
 123                         new_ctype[i + 1] |= _CTYPEMASK_X;
 124                 if (_CurrentRuneLocale->rl_runetype[i] & _CTYPE_B)
 125                         new_ctype[i + 1] |= _CTYPEMASK_B;
 126                 if (_CurrentRuneLocale->rl_runetype[i] & _CTYPE_A)
 127                         new_ctype[i + 1] |= _CTYPEMASK_A;
 128                 if (_CurrentRuneLocale->rl_runetype[i] & _CTYPE_G)
 129                         new_ctype[i + 1] |= _CTYPEMASK_G;
 130                 if (_CurrentRuneLocale->rl_runetype[i] & _CTYPE_R)
 131                         new_ctype[i + 1] |= _CTYPEMASK_R;
 132
 133                 new_toupper[i + 1] = (int16_t)_CurrentRuneLocale->rl_mapupper[i];
 134                 new_tolower[i + 1] = (int16_t)_CurrentRuneLocale->rl_maplower[i];
 135         }
 136
 137         __libc_ctype_ = new_ctype;
 138         __libc_toupper_tab_ = new_toupper;
 139         __libc_tolower_tab_ = new_tolower;
 140
 141         return(0);
 142 }