xref: /freebsd/lib/libc/locale/mskanji.c (revision 4b2eaea43fec8e8792be611dea204071a10b655a)
1 /*
2  *    ja_JP.SJIS locale table for BSD4.4/rune
3  *    version 1.0
4  *    (C) Sin'ichiro MIYATANI / Phase One, Inc
5  *    May 12, 1995
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  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *      This product includes software developed by Phase One, Inc.
18  * 4. The name of Phase One, Inc. may be used to endorse or promote products
19  *    derived from this software without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 #if defined(LIBC_SCCS) && !defined(lint)
35 static char sccsid[] = "@(#)mskanji.c	1.0 (Phase One) 5/5/95";
36 #endif /* LIBC_SCCS and not lint */
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
39 
40 #include <sys/types.h>
41 
42 #include <rune.h>
43 #include <stddef.h>
44 #include <stdio.h>
45 #include <stdlib.h>
46 
47 rune_t	_MSKanji_sgetrune(const char *, size_t, char const **);
48 int	_MSKanji_sputrune(rune_t, char *, size_t, char **);
49 
50 int
51 _MSKanji_init(rl)
52 	_RuneLocale *rl;
53 {
54 	rl->sgetrune = _MSKanji_sgetrune;
55 	rl->sputrune = _MSKanji_sputrune;
56 
57 	_CurrentRuneLocale = rl;
58 	__mb_cur_max = 2;
59 	return (0);
60 }
61 
62 rune_t
63 _MSKanji_sgetrune(string, n, result)
64 	const char *string;
65 	size_t n;
66 	char const **result;
67 {
68 	rune_t rune = 0;
69 
70 	if (n < 1) {
71 		if (result != NULL)
72 			*result = string;
73 		return (_INVALID_RUNE);
74 	}
75 
76 	rune = *string++ & 0xff;
77 	if ((rune > 0x80 && rune < 0xa0) ||
78 	    (rune >= 0xe0 && rune < 0xfd)) {
79 		if (n < 2) {
80 			rune = _INVALID_RUNE;
81 			--string;
82 		} else
83 			rune = (rune << 8) | (*string++ & 0xff);
84 	}
85 	if (result != NULL)
86 		*result = string;
87 
88 	return (rune);
89 }
90 
91 int
92 _MSKanji_sputrune(c, string, n, result)
93 	rune_t c;
94 	char *string, **result;
95 	size_t n;
96 {
97 	int len, i;
98 
99 	len = (c > 0x100) ? 2 : 1;
100 	if (n < len) {
101 		if (result != NULL)
102 			*result = NULL;
103 	} else {
104 		if (result != NULL)
105 			*result = string + len;
106 		for (i = len; i-- > 0; )
107 			*string++ = c >> (i << 3);
108 	}
109 
110 	return (len);
111 }
112