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 <stdio.h>
28 #include <stdlib.h>
29 #include "common_han.h"
30 #include "common_utf.h"
31 #include "common_euc.h"
32 #include "euc_utf_table.h"
33
node_compare(const void * node1,const void * node2)34 static int node_compare(const void *node1, const void *node2)
35 {
36 return(((int)(((const hcode_table *)node1)->code) -
37 (int)(((const hcode_table *)node2)->code)));
38 }
39
40 /**** _ W A N S U N G _ T O _ U T F 8 ****/
41
_wansung_to_utf8(hcode_type euc_code)42 hcode_type _wansung_to_utf8(hcode_type euc_code)
43 {
44 hcode_table *node_ptr, node;
45 hcode_type utf_code;
46 int udc_index;
47
48 /* User Definable Area Check */
49 /* bugid 4701856 */
50 /* characters from 0xc9fa to 0xc9fe are not part of UDC */
51 /* Therefor, they need to be filtered out here... */
52 if ( (euc_code.code < 0xc9fa || euc_code.code > 0xc9fe)
53 && ( (EUC_UDC_SEG1 == euc_code.byte.byte3) ||
54 (EUC_UDC_SEG2 == euc_code.byte.byte3) )
55 ){
56 if ((euc_code.byte.byte4 < EUC_UDC_OFFSET_START) ||
57 (EUC_UDC_OFFSET_END < euc_code.byte.byte4)) {
58 /* beyond the UDC area */
59 utf_code.code = 0;
60
61 return(utf_code);
62 }
63
64 udc_index = (euc_code.byte.byte3 == EUC_UDC_SEG1) ?
65 0 : EUC_UDC_SEG_GAP;
66 udc_index += (int)(euc_code.byte.byte4 - EUC_UDC_OFFSET_START);
67
68 utf_code = _udcidx_to_utf(udc_index);
69
70 if (utf_code.code == UTF_UDC_ERROR)
71 utf_code.code = UTF8_NON_ID_CHAR; /* Failed */
72
73 return(utf_code);
74 }
75
76 node.code = euc_code.word.low;
77
78 node_ptr = bsearch( &node,
79 euc2utf_tbl, sizeof(euc2utf_tbl)/sizeof(hcode_table),
80 sizeof(hcode_table), node_compare);
81
82 if (node_ptr != NULL) /* Success */
83 return(node_ptr->utf8);
84 else { /* Failed */
85 utf_code.code = UTF8_NON_ID_CHAR;
86 return(utf_code);
87 }
88
89 } /* end of hcode_type _wansung_to_utf8(hcode_type euc_code) */
90