| | 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 | |
| | 28 | #include <sys/cdefs.h> |
| | 29 | __FBSDID("$FreeBSD: src/lib/libc/string/strxfrm.c,v 1.15 2002/09/06 11:24:06 tjr Exp $"); |
| | 30 | |
| | 31 | #include <stdlib.h> |
| | 32 | #include <string.h> |
| | 33 | #include "collate.h" |
| | 34 | |
| | 35 | size_t |
| | 36 | strxfrm(char * __restrict dest, const char * __restrict src, size_t len) |
| | 37 | { |
| | 38 | int prim, sec, l; |
| | 39 | size_t slen; |
| | 40 | char *s, *ss; |
| | 41 | |
| | 42 | if (!*src) { |
| | 43 | if (len > 0) |
| | 44 | *dest = '\0'; |
| | 45 | return 0; |
| | 46 | } |
| | 47 | |
| | 48 | if (__collate_load_error) { |
| | 49 | slen = strlen(src); |
| | 50 | if (len > 0) { |
| | 51 | if (slen < len) |
| | 52 | strcpy(dest, src); |
| | 53 | else { |
| | 54 | strncpy(dest, src, len - 1); |
| | 55 | dest[len - 1] = '\0'; |
| | 56 | } |
| | 57 | } |
| | 58 | return slen; |
| | 59 | } |
| | 60 | |
| | 61 | slen = 0; |
| | 62 | prim = sec = 0; |
| | 63 | ss = s = __collate_substitute(src); |
| | 64 | while (*s) { |
| | 65 | while (*s && !prim) { |
| | 66 | __collate_lookup(s, &l, &prim, &sec); |
| | 67 | s += l; |
| | 68 | } |
| | 69 | if (prim) { |
| | 70 | if (len > 1) { |
| | 71 | *dest++ = (char)prim; |
| | 72 | len--; |
| | 73 | } |
| | 74 | slen++; |
| | 75 | prim = 0; |
| | 76 | } |
| | 77 | } |
| | 78 | free(ss); |
| | 79 | if (len > 0) |
| | 80 | *dest = '\0'; |
| | 81 | |
| | 82 | return slen; |
| | 83 | } |
projects / apple / libc.git / blame_incremental