85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
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/*-
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* Copyright (c) 2002 Tim J. Robbins.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <ctype.h>
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#include <errno.h>
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#include <string.h>
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#include <wctype.h>
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enum {
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_WCT_ERROR = 0,
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_WCT_TOLOWER = 1,
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_WCT_TOUPPER = 2
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};
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/*
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* TODO: Supply a macro version of this.
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*/
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wint_t
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towctrans(wint_t wc, wctrans_t desc)
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{
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switch (desc) {
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case _WCT_TOLOWER:
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wc = tolower(wc);
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break;
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case _WCT_TOUPPER:
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wc = toupper(wc);
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break;
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case _WCT_ERROR:
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default:
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errno = EINVAL;
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break;
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}
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return (wc);
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}
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wctrans_t
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wctrans(const char *charclass)
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{
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struct {
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const char *name;
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wctrans_t trans;
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} ccls[] = {
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{ "tolower", _WCT_TOLOWER },
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{ "toupper", _WCT_TOUPPER },
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{ NULL, _WCT_ERROR }, /* Default */
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};
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int i;
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i = 0;
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while (ccls[i].name != NULL && strcmp(ccls[i].name, charclass) != 0)
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i++;
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if (ccls[i].trans == _WCT_ERROR)
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errno = EINVAL;
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return (ccls[i].trans);
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}
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