1 /* $NetBSD: wcspbrk.c,v 1.5 2011/11/24 18:44:25 joerg Exp $ */
2
3 /*-
4 * Copyright (c) 1999 Citrus Project,
5 * Copyright (c) 2011 Joerg Sonnenberger,
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 * citrus Id: wcspbrk.c,v 1.2 2000/12/21 05:07:25 itojun Exp
30 */
31
32 #include <sys/cdefs.h>
33 __RCSID("$NetBSD: wcspbrk.c,v 1.5 2011/11/24 18:44:25 joerg Exp $");
34
35 #include <assert.h>
36 #include <inttypes.h>
37 #include <string.h>
38 #include <wchar.h>
39
40 #include "wcscspn_bloom.h"
41
42 wchar_t *
wcspbrk(const wchar_t * s,const wchar_t * set)43 wcspbrk(const wchar_t *s, const wchar_t *set)
44 {
45 size_t bloom[BLOOM_ARRAY_SIZE];
46 const wchar_t *p;
47 const wchar_t *q;
48
49 _DIAGASSERT(s != NULL);
50 _DIAGASSERT(set != NULL);
51
52 if (set[0] == '\0')
53 return NULL;
54 if (set[1] == '\0')
55 return wcschr(s, set[0]);
56
57 wcsspn_bloom_init(bloom, set);
58
59 for (p = s; *p; ++p) {
60 if (!wcsspn_in_bloom(bloom, *p))
61 continue;
62
63 q = set;
64 do {
65 if (*p == *q)
66 return __UNCONST(p);
67 } while (*++q);
68 }
69 return NULL;
70 }
71