xref: /illumos-gate/usr/src/uts/common/sys/kiconv_tc.h (revision b70bf3ee79d81df3ccc36e553e0ff11049a2b51a)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _SYS_KICONV_TC_H
27 #define	_SYS_KICONV_TC_H
28 
29 #ifdef __cplusplus
30 extern "C" {
31 #endif
32 
33 #ifdef	_KERNEL
34 
35 /* Valid first BIG5 byte or not. */
36 #define	KICONV_TC_IS_BIG5_1st_BYTE(v)	((v) >= 0x81 && (v) <= 0xFE)
37 
38 /* Valid second BIG5 byte or not. */
39 #define	KICONV_TC_IS_BIG5_2nd_BYTE(v)				\
40 	    (((v) >= 0x40 && (v) <= 0x7E) || ((v) >= 0xA1 && (v) <= 0xFE))
41 
42 /* Start byte of CNS 11643 plane 2 - plane 16. */
43 #define	KICONV_TC_EUCTW_MBYTE		(0x8E)
44 
45 /* Plane number mask of CNS 11643 */
46 #define	KICONV_TC_EUCTW_PMASK		(0xA0)
47 
48 /* Valid first byte of CNS 11643 1-16 plane character or not. */
49 #define	KICONV_TC_IS_EUCTW_1st_BYTE(v)				\
50 		((v) == KICONV_TC_EUCTW_MBYTE || KICONV_IS_VALID_EUC_BYTE(v))
51 
52 /* Valid EUC-TW sequence or not. */
53 #define	KICONV_TC_IS_VALID_EUCTW_SEQ(ib)				\
54 	    ((isplane1 && (KICONV_IS_VALID_EUC_BYTE(*((ib) + 1)))) ||	\
55 	    (plane_no <= 16 && plane_no >= 2 && 			\
56 	    KICONV_IS_VALID_EUC_BYTE(*((ib) + 2)) &&			\
57 	    KICONV_IS_VALID_EUC_BYTE(*((ib) + 3))))
58 
59 /*
60  * Plane 12/13/14/16 of EUC-TW fall in UDA range [U+F0000, U+F8A0F] in
61  * Unicode.
62  */
63 #define	KICONV_TC_UDA_UCS4_START	(0xF0000)
64 #define	KICONV_TC_UDA_UTF8_START	(0xF3B08080)
65 #define	KICONV_TC_UDA_UTF8_END		(0xF3B8A88F)
66 
67 #endif	/* _KERNEL */
68 
69 #ifdef __cplusplus
70 }
71 #endif
72 
73 #endif /* _SYS_KICONV_TC_H */
74