103 lines
2.8 KiB
C
103 lines
2.8 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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#include <stdio.h>
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int
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strcoll_l(const char *s, const char *s2, locale_t locale)
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{
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int len, len2, prim, prim2, sec, sec2, ret, ret2;
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const char *t, *t2;
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char *tt, *tt2;
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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 (table->__collate_load_error)
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return strcmp(s, s2);
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len = len2 = 1;
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ret = ret2 = 0;
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if (table->__collate_substitute_nontrivial) {
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t = tt = __collate_substitute(table, s);
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t2 = tt2 = __collate_substitute(table, s2);
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} else {
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tt = tt2 = NULL;
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t = s;
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t2 = s2;
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}
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while(*t && *t2) {
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prim = prim2 = 0;
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while(*t && !prim) {
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__collate_lookup(table, t, &len, &prim, &sec);
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t += len;
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}
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while(*t2 && !prim2) {
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__collate_lookup(table, t2, &len2, &prim2, &sec2);
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t2 += len2;
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}
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if(!prim || !prim2)
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break;
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if(prim != prim2) {
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ret = prim - prim2;
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goto end;
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}
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if(!ret2)
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ret2 = sec - sec2;
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}
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if(!*t && *t2)
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ret = -(int)((u_char)*t2);
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else if(*t && !*t2)
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ret = (u_char)*t;
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else if(!*t && !*t2)
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ret = ret2;
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end:
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free(tt);
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free(tt2);
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return ret;
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}
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int
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strcoll(const char *s, const char *s2)
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{
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return strcoll_l(s, s2, __get_locale());
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}
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