1 /*
2 * Copyright (c) 2003-2004, Artem B. Bityuckiy
3 * modification, are permitted provided that the following conditions
4 * are met:
5 * 1. Redistributions of source code must retain the above copyright
6 * notice, this list of conditions and the following disclaimer.
7 * 2. Redistributions in binary form must reproduce the above copyright
8 * notice, this list of conditions and the following disclaimer in the
9 * documentation and/or other materials provided with the distribution.
10 *
11 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
12 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
13 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
14 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
15 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
16 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
17 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
18 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
19 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
20 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
21 * SUCH DAMAGE.
22 */
23
24 /*
25 * This CES converter is just an simple extension of table CES converter.
26 * This CES converter is used for 16 bit CCSes which include 7bit
27 * Portable Characters Set (PCS) (equivalent to ASCII) (example: BIG5).
28 */
29
30 #include "cesbi.h"
31
32 #if defined (ICONV_TO_UCS_CES_TABLE_PCS) \
33 || defined (ICONV_FROM_UCS_CES_TABLE_PCS)
34
35 #include <sys/types.h>
36 #include "../lib/local.h"
37 #include "../lib/ucsconv.h"
38
39 #if defined (ICONV_FROM_UCS_CES_TABLE_PCS)
40 static size_t
table_pcs_convert_from_ucs(void * data,ucs4_t in,unsigned char ** outbuf,size_t * outbytesleft)41 table_pcs_convert_from_ucs (void *data,
42 ucs4_t in,
43 unsigned char **outbuf,
44 size_t *outbytesleft)
45 {
46 if (*outbytesleft < 1)
47 return (size_t)ICONV_CES_NOSPACE;
48
49 if (in < 0x80)
50 {
51 **outbuf = (unsigned char)in;
52 *outbuf += 1;
53 *outbytesleft -= 1;
54 return 1;
55 }
56
57 return _iconv_from_ucs_ces_handlers_table.convert_from_ucs (
58 data,
59 in,
60 outbuf,
61 outbytesleft);
62 }
63
64 static void *
table_pcs_from_ucs_init(const char * encoding)65 table_pcs_from_ucs_init (
66 const char *encoding)
67 {
68 return _iconv_from_ucs_ces_handlers_table.init (encoding);
69 }
70
71 static size_t
table_pcs_from_ucs_close(void * data)72 table_pcs_from_ucs_close (
73 void *data)
74 {
75 return _iconv_from_ucs_ces_handlers_table.close (data);
76 }
77
78 static int
table_pcs_from_ucs_get_mb_cur_max(void * data)79 table_pcs_from_ucs_get_mb_cur_max (void *data)
80 {
81 return _iconv_from_ucs_ces_handlers_table.get_mb_cur_max (data);
82 }
83
84 #endif /* ICONV_FROM_UCS_CES_TABLE_PCS */
85
86 #if defined (ICONV_TO_UCS_CES_TABLE_PCS)
87 static ucs4_t
table_pcs_convert_to_ucs(void * data,const unsigned char ** inbuf,size_t * inbytesleft)88 table_pcs_convert_to_ucs (void *data,
89 const unsigned char **inbuf,
90 size_t *inbytesleft)
91 {
92 if (*inbytesleft < 1)
93 return (ucs4_t)ICONV_CES_BAD_SEQUENCE;
94
95 if (**inbuf < 0x80)
96 {
97 *inbytesleft -= 1;
98 *inbuf += 1;
99 return (ucs4_t)(*(*inbuf - 1));
100 }
101
102 return _iconv_to_ucs_ces_handlers_table.convert_to_ucs (
103 data,
104 inbuf,
105 inbytesleft);
106 }
107
108 static void *
table_pcs_to_ucs_init(const char * encoding)109 table_pcs_to_ucs_init (
110 const char *encoding)
111 {
112 return _iconv_to_ucs_ces_handlers_table.init (encoding);
113 }
114
115 static size_t
table_pcs_to_ucs_close(void * data)116 table_pcs_to_ucs_close (
117 void *data)
118 {
119 return _iconv_to_ucs_ces_handlers_table.close (data);
120 }
121
122 static int
table_pcs_to_ucs_get_mb_cur_max(void * data)123 table_pcs_to_ucs_get_mb_cur_max (void *data)
124 {
125 return _iconv_to_ucs_ces_handlers_table.get_mb_cur_max (data);
126 }
127
128 #endif /* ICONV_TO_UCS_CES_TABLE_PCS */
129
130 #if defined (ICONV_FROM_UCS_CES_TABLE_PCS)
131 const iconv_from_ucs_ces_handlers_t
132 _iconv_from_ucs_ces_handlers_table_pcs =
133 {
134 table_pcs_from_ucs_init,
135 table_pcs_from_ucs_close,
136 table_pcs_from_ucs_get_mb_cur_max,
137 NULL,
138 NULL,
139 NULL,
140 table_pcs_convert_from_ucs
141 };
142 #endif
143
144 #if defined (ICONV_TO_UCS_CES_TABLE_PCS)
145 const iconv_to_ucs_ces_handlers_t
146 _iconv_to_ucs_ces_handlers_table_pcs =
147 {
148 table_pcs_to_ucs_init,
149 table_pcs_to_ucs_close,
150 table_pcs_to_ucs_get_mb_cur_max,
151 NULL,
152 NULL,
153 NULL,
154 table_pcs_convert_to_ucs
155 };
156 #endif
157
158 #endif /* ICONV_TO_UCS_CES_TABLE_PCS || ICONV_FROM_UCS_CES_TABLE_PCS */
159
160
