xref: /freebsd/lib/libc/locale/collcmp.c (revision 1daad8f5ad767dfe7896b8d1959a329785c9a76b)
12eecfbacSAndrey A. Chernov /*
22eecfbacSAndrey A. Chernov  * Copyright (C) 1996 by Andrey A. Chernov, Moscow, Russia.
32eecfbacSAndrey A. Chernov  * All rights reserved.
42eecfbacSAndrey A. Chernov  *
53c87aa1dSDavid Chisnall  * Copyright (c) 2011 The FreeBSD Foundation
63c87aa1dSDavid Chisnall  * All rights reserved.
73c87aa1dSDavid Chisnall  * Portions of this software were developed by David Chisnall
83c87aa1dSDavid Chisnall  * under sponsorship from the FreeBSD Foundation.
93c87aa1dSDavid Chisnall  *
102eecfbacSAndrey A. Chernov  * Redistribution and use in source and binary forms, with or without
112eecfbacSAndrey A. Chernov  * modification, are permitted provided that the following conditions
122eecfbacSAndrey A. Chernov  * are met:
132eecfbacSAndrey A. Chernov  * 1. Redistributions of source code must retain the above copyright
142eecfbacSAndrey A. Chernov  *    notice, this list of conditions and the following disclaimer.
152eecfbacSAndrey A. Chernov  * 2. Redistributions in binary form must reproduce the above copyright
162eecfbacSAndrey A. Chernov  *    notice, this list of conditions and the following disclaimer in the
172eecfbacSAndrey A. Chernov  *    documentation and/or other materials provided with the distribution.
182eecfbacSAndrey A. Chernov  *
192eecfbacSAndrey A. Chernov  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
202eecfbacSAndrey A. Chernov  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
212eecfbacSAndrey A. Chernov  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
222eecfbacSAndrey A. Chernov  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
232eecfbacSAndrey A. Chernov  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
242eecfbacSAndrey A. Chernov  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
252eecfbacSAndrey A. Chernov  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
262eecfbacSAndrey A. Chernov  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
272eecfbacSAndrey A. Chernov  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
282eecfbacSAndrey A. Chernov  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
292eecfbacSAndrey A. Chernov  * SUCH DAMAGE.
302eecfbacSAndrey A. Chernov  */
312eecfbacSAndrey A. Chernov 
32333fc21eSDavid E. O'Brien #include <sys/cdefs.h>
33333fc21eSDavid E. O'Brien __FBSDID("$FreeBSD$");
34333fc21eSDavid E. O'Brien 
352eecfbacSAndrey A. Chernov #include <string.h>
36*1daad8f5SAndrey A. Chernov #include <wchar.h>
37*1daad8f5SAndrey A. Chernov #include <xlocale.h>
38a9d25ab1SAndrey A. Chernov #include "collate.h"
39883a3266SAndrey A. Chernov 
40cb07d766SAndrey A. Chernov /*
418841d008SAndrey A. Chernov  * Compare two characters using collate
42cb07d766SAndrey A. Chernov  */
43cb07d766SAndrey A. Chernov 
44*1daad8f5SAndrey A. Chernov int __collate_range_cmp(struct xlocale_collate *table, char c1, char c2)
453c2c0c04SPedro F. Giffuni {
463c2c0c04SPedro F. Giffuni 	char s1[2], s2[2];
473c2c0c04SPedro F. Giffuni 
483c2c0c04SPedro F. Giffuni 	s1[0] = c1;
493c2c0c04SPedro F. Giffuni 	s1[1] = '\0';
503c2c0c04SPedro F. Giffuni 	s2[0] = c2;
513c2c0c04SPedro F. Giffuni 	s2[1] = '\0';
52*1daad8f5SAndrey A. Chernov 	struct _xlocale l = {{0}};
53*1daad8f5SAndrey A. Chernov 	l.components[XLC_COLLATE] = (struct xlocale_component *)table;
54*1daad8f5SAndrey A. Chernov 	return (strcoll_l(s1, s2, &l));
55*1daad8f5SAndrey A. Chernov }
56*1daad8f5SAndrey A. Chernov 
57*1daad8f5SAndrey A. Chernov int __wcollate_range_cmp(struct xlocale_collate *table, wchar_t c1, wchar_t c2)
58*1daad8f5SAndrey A. Chernov {
59*1daad8f5SAndrey A. Chernov 	wchar_t s1[2], s2[2];
60*1daad8f5SAndrey A. Chernov 
61*1daad8f5SAndrey A. Chernov 	s1[0] = c1;
62*1daad8f5SAndrey A. Chernov 	s1[1] = L'\0';
63*1daad8f5SAndrey A. Chernov 	s2[0] = c2;
64*1daad8f5SAndrey A. Chernov 	s2[1] = L'\0';
65*1daad8f5SAndrey A. Chernov 	struct _xlocale l = {{0}};
66*1daad8f5SAndrey A. Chernov 	l.components[XLC_COLLATE] = (struct xlocale_component *)table;
67*1daad8f5SAndrey A. Chernov 	return (wcscoll_l(s1, s2, &l));
682eecfbacSAndrey A. Chernov }
69