xref: /freebsd/lib/libc/locale/wctype.c (revision 559a218c)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2002 Tim J. Robbins.
5  * All rights reserved.
6  *
7  * Copyright (c) 2011 The FreeBSD Foundation
8  *
9  * Portions of this software were developed by David Chisnall
10  * under sponsorship from the FreeBSD Foundation.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #include <ctype.h>
35 #include <string.h>
36 #include <wctype.h>
37 #include <xlocale.h>
38 
39 #undef iswctype
40 int
iswctype(wint_t wc,wctype_t charclass)41 iswctype(wint_t wc, wctype_t charclass)
42 {
43 	return (__istype(wc, charclass));
44 }
45 int
iswctype_l(wint_t wc,wctype_t charclass,locale_t locale)46 iswctype_l(wint_t wc, wctype_t charclass, locale_t locale)
47 {
48 	return __istype_l(wc, charclass, locale);
49 }
50 
51 /*
52  * IMPORTANT: The 0 in the call to this function in wctype() must be changed to
53  * __get_locale() if wctype_l() is ever modified to actually use the locale
54  * parameter.
55  */
56 wctype_t
wctype_l(const char * property,locale_t locale)57 wctype_l(const char *property, locale_t locale)
58 {
59 	const char *propnames =
60 		"alnum\0"
61 		"alpha\0"
62 		"blank\0"
63 		"cntrl\0"
64 		"digit\0"
65 		"graph\0"
66 		"lower\0"
67 		"print\0"
68 		"punct\0"
69 		"space\0"
70 		"upper\0"
71 		"xdigit\0"
72 		"ideogram\0"	/* BSD extension */
73 		"special\0"	/* BSD extension */
74 		"phonogram\0"	/* BSD extension */
75 		"number\0"	/* BSD extension */
76 		"rune\0";	/* BSD extension */
77 	static const wctype_t propmasks[] = {
78 		_CTYPE_A|_CTYPE_N,
79 		_CTYPE_A,
80 		_CTYPE_B,
81 		_CTYPE_C,
82 		_CTYPE_D,
83 		_CTYPE_G,
84 		_CTYPE_L,
85 		_CTYPE_R,
86 		_CTYPE_P,
87 		_CTYPE_S,
88 		_CTYPE_U,
89 		_CTYPE_X,
90 		_CTYPE_I,
91 		_CTYPE_T,
92 		_CTYPE_Q,
93 		_CTYPE_N,
94 		0xFFFFFF00L
95 	};
96 	size_t len1, len2;
97 	const char *p;
98 	const wctype_t *q;
99 
100 	len1 = strlen(property);
101 	q = propmasks;
102 	for (p = propnames; (len2 = strlen(p)) != 0; p += len2 + 1) {
103 		if (len1 == len2 && memcmp(property, p, len1) == 0)
104 			return (*q);
105 		q++;
106 	}
107 
108 	return (0UL);
109 }
110 
wctype(const char * property)111 wctype_t wctype(const char *property)
112 {
113 	return wctype_l(property, 0);
114 }
115