1 /* $NetBSD: citrus_bcs.c,v 1.5 2005/05/14 17:55:42 tshiozak Exp $ */ 2 /* $DragonFly: src/lib/libc/citrus/citrus_bcs.c,v 1.3 2008/04/10 10:21:01 hasso Exp $ */ 3 4 /*- 5 * Copyright (c)2003 Citrus Project, 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/types.h> 31 #include <assert.h> 32 #include <stdlib.h> 33 34 #include "citrus_namespace.h" 35 #include "citrus_bcs.h" 36 37 /* 38 * case insensitive comparison between two C strings. 39 */ 40 int 41 _citrus_bcs_strcasecmp(const char * __restrict str1, 42 const char * __restrict str2) 43 { 44 int c1 = 1, c2 = 1; 45 46 while (c1 && c2 && c1 == c2) { 47 c1 = _bcs_toupper(*str1++); 48 c2 = _bcs_toupper(*str2++); 49 } 50 51 return ((c1 == c2) ? 0 : ((c1 > c2) ? 1 : -1)); 52 } 53 54 /* 55 * case insensitive comparison between two C strings with limitation of length. 56 */ 57 int 58 _citrus_bcs_strncasecmp(const char * __restrict str1, 59 const char * __restrict str2, size_t sz) 60 { 61 int c1 = 1, c2 = 1; 62 63 while (c1 && c2 && c1 == c2 && sz != 0) { 64 c1 = _bcs_toupper(*str1++); 65 c2 = _bcs_toupper(*str2++); 66 sz--; 67 } 68 69 return ((c1 == c2) ? 0 : ((c1 > c2) ? 1 : -1)); 70 } 71 72 /* 73 * skip white space characters. 74 */ 75 const char * 76 _citrus_bcs_skip_ws(const char *p) 77 { 78 79 while (*p && _bcs_isspace(*p)) 80 p++; 81 82 return (p); 83 } 84 85 /* 86 * skip non white space characters. 87 */ 88 const char * 89 _citrus_bcs_skip_nonws(const char *p) 90 { 91 92 while (*p && !_bcs_isspace(*p)) 93 p++; 94 95 return (p); 96 } 97 98 /* 99 * skip white space characters with limitation of length. 100 */ 101 const char * 102 _citrus_bcs_skip_ws_len(const char * __restrict p, size_t * __restrict len) 103 { 104 105 while (*p && *len > 0 && _bcs_isspace(*p)) { 106 p++; 107 (*len)--; 108 } 109 110 return (p); 111 } 112 113 /* 114 * skip non white space characters with limitation of length. 115 */ 116 const char * 117 _citrus_bcs_skip_nonws_len(const char * __restrict p, size_t * __restrict len) 118 { 119 120 while (*p && *len > 0 && !_bcs_isspace(*p)) { 121 p++; 122 (*len)--; 123 } 124 125 return (p); 126 } 127 128 /* 129 * truncate trailing white space characters. 130 */ 131 void 132 _citrus_bcs_trunc_rws_len(const char * __restrict p, size_t * __restrict len) 133 { 134 135 while (*len > 0 && _bcs_isspace(p[*len - 1])) 136 (*len)--; 137 } 138 139 /* 140 * destructive transliterate to lowercase. 141 */ 142 void 143 _citrus_bcs_convert_to_lower(char *s) 144 { 145 while (*s) { 146 *s = _bcs_tolower(*s); 147 s++; 148 } 149 } 150 151 /* 152 * destructive transliterate to uppercase. 153 */ 154 void 155 _citrus_bcs_convert_to_upper(char *s) 156 { 157 while (*s) { 158 *s = _bcs_toupper(*s); 159 s++; 160 } 161 } 162