2 * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua>
3 * at Electronni Visti IA, Kiev, Ukraine.
6 * Copyright (c) 2011 The FreeBSD Foundation
8 * Portions of this software were developed by David Chisnall
9 * under sponsorship from the FreeBSD Foundation.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #include <sys/cdefs.h>
35 __FBSDID("FreeBSD: src/lib/libc/string/strxfrm.c,v 1.15 2002/09/06 11:24:06 tjr Exp ");
37 __FBSDID("$FreeBSD$");
44 static char *__mbsdup(const wchar_t *);
47 * Placeholder wcsxfrm() implementation. See wcscoll.c for a description of
51 wcsxfrm_l(wchar_t * __restrict dest, const wchar_t * __restrict src, size_t len, locale_t locale)
57 struct xlocale_collate *table =
58 (struct xlocale_collate*)locale->components[XLC_COLLATE];
66 if (table->__collate_load_error || MB_CUR_MAX > 1) {
72 wcsncpy(dest, src, len - 1);
73 dest[len - 1] = L'\0';
79 mbsrc = __mbsdup(src);
82 ss = s = __collate_substitute(table, mbsrc);
84 while (*s != '\0' && prim == 0) {
85 __collate_lookup(table, s, &l, &prim, &sec);
90 *dest++ = (wchar_t)prim;
105 wcsxfrm(wchar_t * __restrict dest, const wchar_t * __restrict src, size_t len)
107 return wcsxfrm_l(dest, src, len, __get_locale());
111 __mbsdup(const wchar_t *ws)
113 static const mbstate_t initial;
121 if ((len = wcsrtombs(NULL, &wcp, 0, &st)) == (size_t)-1)
123 if ((mbs = malloc(len + 1)) == NULL)
126 wcsrtombs(mbs, &ws, len + 1, &st);