1 /*- 2 * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua> 3 * at Electronni Visti IA, Kiev, Ukraine. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $Id: strxfrm.c,v 1.8 1997/02/22 15:03:31 peter Exp $ 28 */ 29 30 #include <stdlib.h> 31 #include <string.h> 32 #include "collate.h" 33 34 size_t 35 strxfrm(dest, src, len) 36 char *dest; 37 const char *src; 38 size_t len; 39 { 40 int prim, sec, l; 41 char *d = dest, *s, *ss; 42 43 if (len < 1) 44 return 0; 45 46 if (!*src) { 47 *d = '\0'; 48 return 0; 49 } 50 51 if (__collate_load_error) { 52 size_t slen = strlen(src); 53 54 if (slen < len) { 55 strcpy(d, src); 56 return slen; 57 } 58 strncpy(d, src, len - 1); 59 d[len - 1] = '\0'; 60 return len - 1; 61 } 62 63 prim = sec = 0; 64 ss = s = __collate_substitute(src); 65 while (*s && len > 1) { 66 while (*s && !prim) { 67 __collate_lookup(s, &l, &prim, &sec); 68 s += l; 69 } 70 if (prim) { 71 *d++ = (char)prim; 72 len--; 73 prim = 0; 74 } 75 } 76 free(ss); 77 *d = '\0'; 78 79 return d - dest; 80 } 81