crypto/external/bsd/heimdal/dist/lib/wind/combining.c

   1 /*      $NetBSD: combining.c,v 1.1.1.1 2011/04/13 18:15:45 elric Exp $  */
   2
   3 /*
   4  * Copyright (c) 2008 Kungliga Tekniska Högskolan
   5  * (Royal Institute of Technology, Stockholm, Sweden).
   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  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * 3. Neither the name of the Institute nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include "windlocl.h"
  37
  38 #include <stdlib.h>
  39
  40 #include "combining_table.h"
  41
  42 static int
  43 translation_cmp(const void *key, const void *data)
  44 {
  45     const struct translation *t1 = (const struct translation *)key;
  46     const struct translation *t2 = (const struct translation *)data;
  47
  48     return t1->key - t2->key;
  49 }
  50
  51 int
  52 _wind_combining_class(uint32_t code_point)
  53 {
  54     struct translation ts = {code_point};
  55     void *s = bsearch(&ts, _wind_combining_table, _wind_combining_table_size,
  56                       sizeof(_wind_combining_table[0]),
  57                       translation_cmp);
  58     if (s != NULL) {
  59         const struct translation *t = (const struct translation *)s;
  60         return t->combining_class;
  61     } else {
  62         return 0;
  63     }
  64 }