xref: /dragonfly/lib/libc/locale/mskanji.c (revision af79c6e5)
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  * $FreeBSD: src/lib/libc/locale/mskanji.c,v 1.2.8.2 2001/03/05 10:22:45 obrien Exp $
34  * $DragonFly: src/lib/libc/locale/Attic/mskanji.c,v 1.4 2003/12/02 14:56:28 eirikn Exp $
35  *
36  * @(#)mskanji.c	1.0 (Phase One) 5/5/95
37  */
38 
39 #include <sys/types.h>
40 
41 #include <rune.h>
42 #include <stdlib.h>
43 
44 rune_t	_MSKanji_sgetrune (const char *, size_t, char const **);
45 int	_MSKanji_sputrune (rune_t, char *, size_t, char **);
46 
47 int
48 _MSKanji_init(rl)
49 	_RuneLocale *rl;
50 {
51 	rl->sgetrune = _MSKanji_sgetrune;
52 	rl->sputrune = _MSKanji_sputrune;
53 
54 	_CurrentRuneLocale = rl;
55 	__mb_cur_max = 2;
56 	return (0);
57 }
58 
59 rune_t
60 _MSKanji_sgetrune(string, n, result)
61 	const char *string;
62 	size_t n;
63 	char const **result;
64 {
65 	rune_t rune = 0;
66 
67 	if (n < 1 ) {
68 		rune = _INVALID_RUNE;
69 	} else {
70 		rune = *( string++ ) & 0xff;
71 		if ( ( rune > 0x80 && rune < 0xa0 )
72 		|| ( rune >= 0xe0 && rune < 0xfa ) ) {
73 			if ( n < 2 ) {
74 				rune = (rune_t)_INVALID_RUNE;
75 				--string;
76 			} else {
77 				rune = ( rune << 8 ) | ( *( string++ ) & 0xff );
78 			}
79 		}
80 	}
81 	if (result) *result = string;
82 	return rune;
83 }
84 
85 int
86 _MSKanji_sputrune(c, string, n, result)
87 	rune_t c;
88 	char *string, **result;
89 	size_t n;
90 {
91 	int	len, i;
92 
93 	len = ( c > 0x100 ) ? 2 : 1;
94 	if ( n < len ) {
95 		if ( result ) *result = (char *) 0;
96 	} else {
97 		if ( result ) *result = string + len;
98 		for ( i = len; i-- > 0; ) {
99 			*( string++ ) = c >> ( i << 3 );
100 		}
101 	}
102 	return len;
103 }
104