1 /*- 2 * Copyright (c) 2002 Tim J. Robbins. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <ctype.h> 31 #include <errno.h> 32 #include <string.h> 33 #include <wctype.h> 34 35 enum { 36 _WCT_ERROR = 0, 37 _WCT_TOLOWER = 1, 38 _WCT_TOUPPER = 2 39 }; 40 41 /* 42 * TODO: Supply a macro version of this. 43 */ 44 wint_t 45 towctrans(wint_t wc, wctrans_t desc) 46 { 47 48 switch (desc) { 49 case _WCT_TOLOWER: 50 wc = towlower(wc); 51 break; 52 case _WCT_TOUPPER: 53 wc = towupper(wc); 54 break; 55 case _WCT_ERROR: 56 default: 57 errno = EINVAL; 58 break; 59 } 60 61 return (wc); 62 } 63 64 wctrans_t 65 wctrans(const char *charclass) 66 { 67 struct { 68 const char *name; 69 wctrans_t trans; 70 } ccls[] = { 71 { "tolower", _WCT_TOLOWER }, 72 { "toupper", _WCT_TOUPPER }, 73 { NULL, _WCT_ERROR }, /* Default */ 74 }; 75 int i; 76 77 i = 0; 78 while (ccls[i].name != NULL && strcmp(ccls[i].name, charclass) != 0) 79 i++; 80 81 if (ccls[i].trans == _WCT_ERROR) 82 errno = EINVAL; 83 return (ccls[i].trans); 84 } 85