105 lines
2.5 KiB
C
105 lines
2.5 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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* 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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* $Id: strxfrm.c,v 1.4 1995/02/18 11:36:33 ache Exp $
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include "collate.h"
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size_t
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strxfrm(dest, src, len)
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char *dest;
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const char *src;
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size_t len;
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{
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int prim, sec, l;
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char *d = dest, *s, *ss;
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if (len < 1)
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return 0;
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if (!*src) {
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*d = '\0';
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return 0;
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}
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if (__collate_load_error) {
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size_t slen = strlen(src);
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u_char *us;
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if (slen < len)
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strcpy(d, src);
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else {
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slen = len - 1;
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strncpy(d, src, slen);
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d[slen] = '\0';
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}
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for (us = d; *us; us++) {
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if (isupper(*us)) {
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if (tolower(*us) < *us)
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*us = tolower(*us) - 1;
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/* assume it not started from 0 */
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else
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*us = tolower(*us);
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}
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}
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return slen;
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}
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ss = s = __collate_substitute(src);
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prim = sec = 0;
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while (*s && len > 1) {
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while (*s && !prim) {
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__collate_lookup(s, &l, &prim, &sec);
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s += l;
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}
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if (prim) {
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*d++ = (char)prim;
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len--;
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}
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}
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#if 0
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s = ss;
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while (*s && len > 1) {
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while (*s && !prim) {
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lookup(s, &l, &prim, &sec);
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s += l;
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}
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if (prim && sec) {
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*d++ = (char)sec;
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len--;
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}
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}
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#endif /* 0 */
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*d = '\0';
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free(ss);
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return d - dest;
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}
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