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 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 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 (c) 1996 by Sun Microsystems, Inc.
23 */
24
25
26 #include <errno.h>
27 #include <stdlib.h>
28 #include "common_han.h"
29 #include "common_utf.h"
30 #include "common_njh.h"
31 #include "utf_njh_table.h"
32
node_compare(const void * node1,const void * node2)33 static int node_compare(const void *node1, const void *node2)
34 {
35 return((int)(((const hcode_table *)node1)->utf8.code) -
36 (int)(((const hcode_table *)node2)->utf8.code));
37 }
38
39
40 /**** _ U T F 8 _ T O _ J O H A P 9 2 ****/
41
_utf8_to_johap92(hcode_type utfcode)42 hcode_type _utf8_to_johap92(hcode_type utfcode)
43 {
44 hcode_table *node_ptr, node;
45 hcode_type johap, unicode;
46 int udc_index;
47
48 /* User Definable Area Check */
49 if ((udc_index = _utf_to_udcidx(utfcode)) != IDX_UDC_ERROR) {
50
51 johap.byte.byte3 = NJH_UDC_SEG;
52
53 if (udc_index < NJH_UDC_OFFSET_GAP)
54 johap.byte.byte4 = (unsigned int)(udc_index +
55 NJH_UDC_OFFSET1_START);
56 else
57 johap.byte.byte4 = NJH_UDC_OFFSET2_START +
58 (unsigned int)(udc_index - NJH_UDC_OFFSET_GAP);
59
60 return(johap);
61 }
62
63 unicode = _utf8_to_uni(utfcode);
64
65 if ((UNICODE_HANGUL_START <= unicode.code) &&
66 (unicode.code <= UNICODE_HANGUL_END)) {
67 /* Hangul Area */
68 unsigned int uni, x, y, z;
69
70 uni = unicode.code - 0xAC00;
71 x = uni / 588;
72 /* 588 = 21(Joongsung Number) * 28(Jongsung Number) */
73 y = (uni % 588) / 28;
74 z = (uni % 588) % 28;
75 z = z > 0x10 ? z + 2 : z + 1;
76
77 johap.code = 0;
78 johap.johap.msb = 1;
79 johap.johap.jongsung = z;
80 johap.johap.joongsung = y > 0x10 ? y + 9 :
81 y > 0x0A ? y + 7 :
82 y > 0x04 ? y + 5 : y + 3;
83 johap.johap.chosung = x + 2;
84
85 return(johap);
86
87 } else {
88 /* Notes: if need hangul jamo later, add here */
89
90 node.utf8 = utfcode;
91
92 node_ptr = bsearch( &node,
93 utf2njh_tbl, sizeof(utf2njh_tbl)/sizeof(hcode_table),
94 sizeof(hcode_table), node_compare);
95
96 johap.code = NON_ID_CHAR; /* initial & default set to fail value */
97
98 if (node_ptr != NULL)
99 johap.word.low = node_ptr->code; /* Success */
100
101 return(johap);
102 }
103
104
105 } /* end of hcode_type _utf8_to_johap92(hcode_type utfcode) */
106