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Commit	Line	Data
	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: src/lib/libc/locale/wctrans.c,v 1.3 2003/11/01 08:20:58 tjr Exp $");
	29
	30	#include "xlocale_private.h"
	31
	32	#include <errno.h>
	33	#include <string.h>
	34	#include <wctype.h>
	35
	36	enum {
	37	_WCT_ERROR = 0,
	38	_WCT_TOLOWER = 1,
	39	_WCT_TOUPPER = 2
	40	};
	41
	42	wint_t
	43	towctrans_l(wint_t wc, wctrans_t desc, locale_t loc)
	44	{
	45
	46	NORMALIZE_LOCALE(loc);
	47	switch (desc) {
	48	case _WCT_TOLOWER:
	49	wc = towlower_l(wc, loc);
	50	break;
	51	case _WCT_TOUPPER:
	52	wc = towupper_l(wc, loc);
	53	break;
	54	case _WCT_ERROR:
	55	default:
	56	errno = EINVAL;
	57	break;
	58	}
	59
	60	return (wc);
	61	}
	62
	63	wint_t
	64	towctrans(wint_t wc, wctrans_t desc)
	65	{
	66	return towctrans_l(wc, desc, __current_locale());
	67	}
	68
	69	wctrans_t
	70	wctrans(const char *charclass)
	71	{
	72	struct {
	73	const char *name;
	74	wctrans_t trans;
	75	} ccls[] = {
	76	{ "tolower", _WCT_TOLOWER },
	77	{ "toupper", _WCT_TOUPPER },
	78	{ NULL, _WCT_ERROR }, /* Default */
	79	};
	80	int i;
	81
	82	i = 0;
	83	while (ccls[i].name != NULL && strcmp(ccls[i].name, charclass) != 0)
	84	i++;
	85
	86	if (ccls[i].trans == _WCT_ERROR)
	87	errno = EINVAL;
	88	return (ccls[i].trans);
	89	}
	90
	91	/*
	92	* The extended locale version just calls the regular version. If there
	93	* is ever support for arbitrary per-locale translations, this need to
	94	* be modified.
	95	*/
	96	wctrans_t
	97	wctrans_l(const char *charclass, locale_t loc)
	98	{
	99	return wctrans(charclass);
	100	}