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 <note.h>
31 #include <errno.h>
32 #include <string.h>
33 #include <wctype.h>
34 #include <locale.h>
35
36 enum {
37 _WCT_ERROR = 0,
38 _WCT_TOLOWER = 1,
39 _WCT_TOUPPER = 2
40 };
41
42 wint_t
towctrans_l(wint_t wc,wctrans_t desc,locale_t loc)43 towctrans_l(wint_t wc, wctrans_t desc, locale_t loc)
44 {
45 switch (desc) {
46 case _WCT_TOLOWER:
47 wc = towlower_l(wc, loc);
48 break;
49 case _WCT_TOUPPER:
50 wc = towupper_l(wc, loc);
51 break;
52 case _WCT_ERROR:
53 default:
54 errno = EINVAL;
55 break;
56 }
57
58 return (wc);
59 }
60
61 wint_t
towctrans(wint_t wc,wctrans_t desc)62 towctrans(wint_t wc, wctrans_t desc)
63 {
64 return (towctrans_l(wc, desc, uselocale(NULL)));
65 }
66
67 /*
68 * For *now* we don't support locale sensitive transforms besides toupper
69 * and tolower.
70 */
71 wctrans_t
wctrans_l(const char * charclass,locale_t loc)72 wctrans_l(const char *charclass, locale_t loc)
73 {
74 struct {
75 const char *name;
76 wctrans_t trans;
77 } ccls[] = {
78 { "tolower", _WCT_TOLOWER },
79 { "toupper", _WCT_TOUPPER },
80 { NULL, _WCT_ERROR }, /* Default */
81 };
82 int i;
83 _NOTE(ARGUNUSED(loc));
84
85 i = 0;
86 while (ccls[i].name != NULL && strcmp(ccls[i].name, charclass) != 0)
87 i++;
88
89 if (ccls[i].trans == _WCT_ERROR)
90 errno = EINVAL;
91 return (ccls[i].trans);
92 }
93
94 wctrans_t
wctrans(const char * charclass)95 wctrans(const char *charclass)
96 {
97 return (wctrans_l(charclass, uselocale(NULL)));
98 }
99