3c87aa1d3d
load of _l suffixed versions of various standard library functions that use the global locale, making them take an explicit locale parameter. Also adds support for per-thread locales. This work was funded by the FreeBSD Foundation. Please test any code you have that uses the C standard locale functions! Reviewed by: das (gdtoa changes) Approved by: dim (mentor)
90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
/*-
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* Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua>
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* at Electronni Visti IA, Kiev, Ukraine.
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* All rights reserved.
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*
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* Copyright (c) 2011 The FreeBSD Foundation
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* All rights reserved.
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* Portions of this software were developed by David Chisnall
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* under sponsorship from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stdlib.h>
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#include <string.h>
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#include "collate.h"
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size_t
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strxfrm_l(char * __restrict dest, const char * __restrict src, size_t len, locale_t loc);
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size_t
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strxfrm(char * __restrict dest, const char * __restrict src, size_t len)
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{
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return strxfrm_l(dest, src, len, __get_locale());
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}
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size_t
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strxfrm_l(char * __restrict dest, const char * __restrict src, size_t len, locale_t locale)
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{
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int prim, sec, l;
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size_t slen;
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char *s, *ss;
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FIX_LOCALE(locale);
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struct xlocale_collate *table =
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(struct xlocale_collate*)locale->components[XLC_COLLATE];
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if (!*src) {
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if (len > 0)
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*dest = '\0';
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return 0;
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}
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if (table->__collate_load_error)
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return strlcpy(dest, src, len);
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slen = 0;
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prim = sec = 0;
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ss = s = __collate_substitute(table, src);
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while (*s) {
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while (*s && !prim) {
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__collate_lookup(table, s, &l, &prim, &sec);
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s += l;
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}
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if (prim) {
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if (len > 1) {
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*dest++ = (char)prim;
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len--;
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}
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slen++;
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prim = 0;
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}
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}
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free(ss);
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if (len > 0)
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*dest = '\0';
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return slen;
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}
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