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 * $Id$ 28 */ 29 30 #include <stdlib.h> 31 #include <string.h> 32 #include "collate.h" 33 34 int 35 strcoll(s, s2) 36 const char *s, *s2; 37 { 38 int len, len2, prim, prim2, sec, sec2, ret, ret2; 39 char *tt, *t, *tt2, *t2; 40 41 if (__collate_load_error) 42 return strcmp(s, s2); 43 44 len = len2 = 1; 45 ret = ret2 = 0; 46 tt = t = __collate_substitute(s); 47 tt2 = t2 = __collate_substitute(s2); 48 while(*t && *t2) { 49 prim = prim2 = 0; 50 while(*t && !prim) { 51 __collate_lookup(t, &len, &prim, &sec); 52 t += len; 53 } 54 while(*t2 && !prim2) { 55 __collate_lookup(t2, &len2, &prim2, &sec2); 56 t2 += len2; 57 } 58 if(!prim || !prim2) 59 break; 60 if(prim != prim2) { 61 ret = prim - prim2; 62 goto end; 63 } 64 if(!ret2) 65 ret2 = sec - sec2; 66 } 67 if(!*t && *t2) 68 ret = -(int)((u_char)*t2); 69 else if(*t && !*t2) 70 ret = (u_char)*t; 71 else if(!*t && !*t2) 72 ret = ret2; 73 end: 74 free(tt); 75 free(tt2); 76 77 return ret; 78 } 79