1 /*
2 * Copyright 2013 Garrett D'Amore <garrett@damore.org>
3 * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
4 * Copyright (c) 2002 Tim J. Robbins.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include "lint.h"
30 #include <errno.h>
31 #include <string.h>
32 #include <wctype.h>
33 #include <locale.h>
34
35 enum {
36 _WCT_ERROR = 0,
37 _WCT_TOLOWER = 1,
38 _WCT_TOUPPER = 2
39 };
40
41 wint_t
towctrans_l(wint_t wc,wctrans_t desc,locale_t loc)42 towctrans_l(wint_t wc, wctrans_t desc, locale_t loc)
43 {
44 switch (desc) {
45 case _WCT_TOLOWER:
46 wc = towlower_l(wc, loc);
47 break;
48 case _WCT_TOUPPER:
49 wc = towupper_l(wc, loc);
50 break;
51 case _WCT_ERROR:
52 default:
53 errno = EINVAL;
54 break;
55 }
56
57 return (wc);
58 }
59
60 wint_t
towctrans(wint_t wc,wctrans_t desc)61 towctrans(wint_t wc, wctrans_t desc)
62 {
63 return (towctrans_l(wc, desc, uselocale(NULL)));
64 }
65
66 /*
67 * For *now* we don't support locale sensitive transforms besides toupper
68 * and tolower.
69 */
70 wctrans_t
wctrans_l(const char * charclass,locale_t loc __unused)71 wctrans_l(const char *charclass, locale_t loc __unused)
72 {
73 struct {
74 const char *name;
75 wctrans_t trans;
76 } ccls[] = {
77 { "tolower", _WCT_TOLOWER },
78 { "toupper", _WCT_TOUPPER },
79 { NULL, _WCT_ERROR }, /* Default */
80 };
81 int i;
82
83 i = 0;
84 while (ccls[i].name != NULL && strcmp(ccls[i].name, charclass) != 0)
85 i++;
86
87 if (ccls[i].trans == _WCT_ERROR)
88 errno = EINVAL;
89 return (ccls[i].trans);
90 }
91
92 wctrans_t
wctrans(const char * charclass)93 wctrans(const char *charclass)
94 {
95 return (wctrans_l(charclass, uselocale(NULL)));
96 }
97