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
36enum {
37	_WCT_ERROR	= 0,
38	_WCT_TOLOWER	= 1,
39	_WCT_TOUPPER	= 2
40};
41
42wint_t
43towctrans_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
63wint_t
64towctrans(wint_t wc, wctrans_t desc)
65{
66	return towctrans_l(wc, desc, __current_locale());
67}
68
69wctrans_t
70wctrans(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 */
96wctrans_t
97wctrans_l(const char *charclass, locale_t loc)
98{
99	return wctrans(charclass);
100}
101