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) 1999 by Sun Microsystems, Inc.
23 */
24
25
26 #include <errno.h>
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include "common_han.h"
30 #include "common_utf.h"
31 #include "common_euc.h"
32 #include "uhang_uni_table.h"
33
34 static int
node_compare(const void * node1,const void * node2)35 node_compare (const void *node1, const void *node2)
36 {
37 return(((int)(((const hcode_table *)node1)->code) -
38 (int)(((const hcode_table *)node2)->code)));
39 }
40
41
42
43 hcode_type
_unified_hangul_to_UCS2LE(hcode_type euc_code)44 _unified_hangul_to_UCS2LE (hcode_type euc_code)
45 {
46 hcode_table *node_ptr, node;
47 hcode_type utf_code;
48 int udc_index;
49
50 /* User Definable Area Check */
51 if ((EUC_UDC_SEG1 == euc_code.byte.byte3) ||
52 (EUC_UDC_SEG2 == euc_code.byte.byte3)) {
53 if ((euc_code.byte.byte4 < EUC_UDC_OFFSET_START) ||
54 (EUC_UDC_OFFSET_END < euc_code.byte.byte4)) {
55 /* beyond the UDC area */
56 utf_code.code = 0;
57
58 return(utf_code);
59 }
60
61 udc_index = (euc_code.byte.byte3 == EUC_UDC_SEG1) ?
62 0 : EUC_UDC_SEG_GAP;
63 udc_index += (int)(euc_code.byte.byte4 - EUC_UDC_OFFSET_START);
64
65 utf_code = _udcidx_to_utf(udc_index);
66
67 if (utf_code.code == UTF_UDC_ERROR)
68 utf_code.code = UTF8_NON_ID_CHAR; /* Failed */
69
70 return(utf_code);
71 }
72
73 node.code = euc_code.word.low;
74
75 node_ptr = bsearch( &node,
76 uhang_uni_tbl, sizeof(uhang_uni_tbl)/sizeof(hcode_table),
77 sizeof(hcode_table), node_compare);
78
79 if (node_ptr != NULL) /* Success */
80 utf_code = node_ptr->utf8;
81 else /* Failed */
82 utf_code.code = UTF8_NON_ID_CHAR;
83 return(utf_code);
84 }
85