1219019Sgabor/* $FreeBSD: releng/10.2/lib/libc/iconv/citrus_bcs.c 219019 2011-02-25 00:04:39Z gabor $ */ 2219019Sgabor/* $NetBSD: citrus_bcs.c,v 1.5 2005/05/14 17:55:42 tshiozak Exp $ */ 3219019Sgabor 4219019Sgabor/*- 5219019Sgabor * Copyright (c)2003 Citrus Project, 6219019Sgabor * All rights reserved. 7219019Sgabor * 8219019Sgabor * Redistribution and use in source and binary forms, with or without 9219019Sgabor * modification, are permitted provided that the following conditions 10219019Sgabor * are met: 11219019Sgabor * 1. Redistributions of source code must retain the above copyright 12219019Sgabor * notice, this list of conditions and the following disclaimer. 13219019Sgabor * 2. Redistributions in binary form must reproduce the above copyright 14219019Sgabor * notice, this list of conditions and the following disclaimer in the 15219019Sgabor * documentation and/or other materials provided with the distribution. 16219019Sgabor * 17219019Sgabor * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18219019Sgabor * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19219019Sgabor * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20219019Sgabor * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21219019Sgabor * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22219019Sgabor * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23219019Sgabor * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24219019Sgabor * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25219019Sgabor * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26219019Sgabor * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27219019Sgabor * SUCH DAMAGE. 28219019Sgabor */ 29219019Sgabor 30219019Sgabor#include <sys/cdefs.h> 31219019Sgabor 32219019Sgabor#include <assert.h> 33219019Sgabor#include <stdlib.h> 34219019Sgabor 35219019Sgabor#include "citrus_namespace.h" 36219019Sgabor#include "citrus_bcs.h" 37219019Sgabor 38219019Sgabor/* 39219019Sgabor * case insensitive comparison between two C strings. 40219019Sgabor */ 41219019Sgaborint 42219019Sgabor_citrus_bcs_strcasecmp(const char * __restrict str1, 43219019Sgabor const char * __restrict str2) 44219019Sgabor{ 45219019Sgabor int c1, c2; 46219019Sgabor 47219019Sgabor c1 = c2 = 1; 48219019Sgabor 49219019Sgabor while (c1 && c2 && c1 == c2) { 50219019Sgabor c1 = _bcs_toupper(*str1++); 51219019Sgabor c2 = _bcs_toupper(*str2++); 52219019Sgabor } 53219019Sgabor 54219019Sgabor return ((c1 == c2) ? 0 : ((c1 > c2) ? 1 : -1)); 55219019Sgabor} 56219019Sgabor 57219019Sgabor/* 58219019Sgabor * case insensitive comparison between two C strings with limitation of length. 59219019Sgabor */ 60219019Sgaborint 61219019Sgabor_citrus_bcs_strncasecmp(const char * __restrict str1, 62219019Sgabor const char * __restrict str2, size_t sz) 63219019Sgabor{ 64219019Sgabor int c1, c2; 65219019Sgabor 66219019Sgabor c1 = c2 = 1; 67219019Sgabor 68219019Sgabor while (c1 && c2 && c1 == c2 && sz != 0) { 69219019Sgabor c1 = _bcs_toupper(*str1++); 70219019Sgabor c2 = _bcs_toupper(*str2++); 71219019Sgabor sz--; 72219019Sgabor } 73219019Sgabor 74219019Sgabor return ((c1 == c2) ? 0 : ((c1 > c2) ? 1 : -1)); 75219019Sgabor} 76219019Sgabor 77219019Sgabor/* 78219019Sgabor * skip white space characters. 79219019Sgabor */ 80219019Sgaborconst char * 81219019Sgabor_citrus_bcs_skip_ws(const char *p) 82219019Sgabor{ 83219019Sgabor 84219019Sgabor while (*p && _bcs_isspace(*p)) 85219019Sgabor p++; 86219019Sgabor 87219019Sgabor return (p); 88219019Sgabor} 89219019Sgabor 90219019Sgabor/* 91219019Sgabor * skip non white space characters. 92219019Sgabor */ 93219019Sgaborconst char * 94219019Sgabor_citrus_bcs_skip_nonws(const char *p) 95219019Sgabor{ 96219019Sgabor 97219019Sgabor while (*p && !_bcs_isspace(*p)) 98219019Sgabor p++; 99219019Sgabor 100219019Sgabor return (p); 101219019Sgabor} 102219019Sgabor 103219019Sgabor/* 104219019Sgabor * skip white space characters with limitation of length. 105219019Sgabor */ 106219019Sgaborconst char * 107219019Sgabor_citrus_bcs_skip_ws_len(const char * __restrict p, size_t * __restrict len) 108219019Sgabor{ 109219019Sgabor 110219019Sgabor while (*p && *len > 0 && _bcs_isspace(*p)) { 111219019Sgabor p++; 112219019Sgabor (*len)--; 113219019Sgabor } 114219019Sgabor 115219019Sgabor return (p); 116219019Sgabor} 117219019Sgabor 118219019Sgabor/* 119219019Sgabor * skip non white space characters with limitation of length. 120219019Sgabor */ 121219019Sgaborconst char * 122219019Sgabor_citrus_bcs_skip_nonws_len(const char * __restrict p, size_t * __restrict len) 123219019Sgabor{ 124219019Sgabor 125219019Sgabor while (*p && *len > 0 && !_bcs_isspace(*p)) { 126219019Sgabor p++; 127219019Sgabor (*len)--; 128219019Sgabor } 129219019Sgabor 130219019Sgabor return (p); 131219019Sgabor} 132219019Sgabor 133219019Sgabor/* 134219019Sgabor * truncate trailing white space characters. 135219019Sgabor */ 136219019Sgaborvoid 137219019Sgabor_citrus_bcs_trunc_rws_len(const char * __restrict p, size_t * __restrict len) 138219019Sgabor{ 139219019Sgabor 140219019Sgabor while (*len > 0 && _bcs_isspace(p[*len - 1])) 141219019Sgabor (*len)--; 142219019Sgabor} 143219019Sgabor 144219019Sgabor/* 145219019Sgabor * destructive transliterate to lowercase. 146219019Sgabor */ 147219019Sgaborvoid 148219019Sgabor_citrus_bcs_convert_to_lower(char *s) 149219019Sgabor{ 150219019Sgabor 151219019Sgabor while (*s) { 152219019Sgabor *s = _bcs_tolower(*s); 153219019Sgabor s++; 154219019Sgabor } 155219019Sgabor} 156219019Sgabor 157219019Sgabor/* 158219019Sgabor * destructive transliterate to uppercase. 159219019Sgabor */ 160219019Sgaborvoid 161219019Sgabor_citrus_bcs_convert_to_upper(char *s) 162219019Sgabor{ 163219019Sgabor 164219019Sgabor while (*s) { 165219019Sgabor *s = _bcs_toupper(*s); 166219019Sgabor s++; 167219019Sgabor } 168219019Sgabor} 169