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 <_ansi.h>
36 #include <sys/types.h>
37 #include "../lib/local.h"
38 #include "../lib/ucsconv.h"
39
40 #if defined (ICONV_FROM_UCS_CES_TABLE_PCS)
41 static size_t
table_pcs_convert_from_ucs(void * data,ucs4_t in,unsigned char ** outbuf,size_t * outbytesleft)42 table_pcs_convert_from_ucs (void *data,
43 ucs4_t in,
44 unsigned char **outbuf,
45 size_t *outbytesleft)
46 {
47 if (*outbytesleft < 1)
48 return (size_t)ICONV_CES_NOSPACE;
49
50 if (in < 0x80)
51 {
52 **outbuf = (unsigned char)in;
53 *outbuf += 1;
54 *outbytesleft -= 1;
55 return 1;
56 }
57
58 return _iconv_from_ucs_ces_handlers_table.convert_from_ucs (
59 data,
60 in,
61 outbuf,
62 outbytesleft);
63 }
64
65 static void *
table_pcs_from_ucs_init(const char * encoding)66 table_pcs_from_ucs_init (
67 const char *encoding)
68 {
69 return _iconv_from_ucs_ces_handlers_table.init (encoding);
70 }
71
72 static size_t
table_pcs_from_ucs_close(void * data)73 table_pcs_from_ucs_close (
74 void *data)
75 {
76 return _iconv_from_ucs_ces_handlers_table.close (data);
77 }
78
79 static int
table_pcs_from_ucs_get_mb_cur_max(void * data)80 table_pcs_from_ucs_get_mb_cur_max (void *data)
81 {
82 return _iconv_from_ucs_ces_handlers_table.get_mb_cur_max (data);
83 }
84
85 #endif /* ICONV_FROM_UCS_CES_TABLE_PCS */
86
87 #if defined (ICONV_TO_UCS_CES_TABLE_PCS)
88 static ucs4_t
table_pcs_convert_to_ucs(void * data,const unsigned char ** inbuf,size_t * inbytesleft)89 table_pcs_convert_to_ucs (void *data,
90 const unsigned char **inbuf,
91 size_t *inbytesleft)
92 {
93 if (*inbytesleft < 1)
94 return (ucs4_t)ICONV_CES_BAD_SEQUENCE;
95
96 if (**inbuf < 0x80)
97 {
98 *inbytesleft -= 1;
99 *inbuf += 1;
100 return (ucs4_t)(*(*inbuf - 1));
101 }
102
103 return _iconv_to_ucs_ces_handlers_table.convert_to_ucs (
104 data,
105 inbuf,
106 inbytesleft);
107 }
108
109 static void *
table_pcs_to_ucs_init(const char * encoding)110 table_pcs_to_ucs_init (
111 const char *encoding)
112 {
113 return _iconv_to_ucs_ces_handlers_table.init (encoding);
114 }
115
116 static size_t
table_pcs_to_ucs_close(void * data)117 table_pcs_to_ucs_close (
118 void *data)
119 {
120 return _iconv_to_ucs_ces_handlers_table.close (data);
121 }
122
123 static int
table_pcs_to_ucs_get_mb_cur_max(void * data)124 table_pcs_to_ucs_get_mb_cur_max (void *data)
125 {
126 return _iconv_to_ucs_ces_handlers_table.get_mb_cur_max (data);
127 }
128
129 #endif /* ICONV_TO_UCS_CES_TABLE_PCS */
130
131 #if defined (ICONV_FROM_UCS_CES_TABLE_PCS)
132 const iconv_from_ucs_ces_handlers_t
133 _iconv_from_ucs_ces_handlers_table_pcs =
134 {
135 table_pcs_from_ucs_init,
136 table_pcs_from_ucs_close,
137 table_pcs_from_ucs_get_mb_cur_max,
138 NULL,
139 NULL,
140 NULL,
141 table_pcs_convert_from_ucs
142 };
143 #endif
144
145 #if defined (ICONV_TO_UCS_CES_TABLE_PCS)
146 const iconv_to_ucs_ces_handlers_t
147 _iconv_to_ucs_ces_handlers_table_pcs =
148 {
149 table_pcs_to_ucs_init,
150 table_pcs_to_ucs_close,
151 table_pcs_to_ucs_get_mb_cur_max,
152 NULL,
153 NULL,
154 NULL,
155 table_pcs_convert_to_ucs
156 };
157 #endif
158
159 #endif /* ICONV_TO_UCS_CES_TABLE_PCS || ICONV_FROM_UCS_CES_TABLE_PCS */
160
161
