1/*
2 * "streamable kanji code filter and converter"
3 * Copyright (c) 1998-2002 HappySize, Inc. All rights reserved.
4 *
5 * LICENSE NOTICES
6 *
7 * This file is part of "streamable kanji code filter and converter",
8 * which is distributed under the terms of GNU Lesser General Public
9 * License (version 2) as published by the Free Software Foundation.
10 *
11 * This software is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 * GNU Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with "streamable kanji code filter and converter";
18 * if not, write to the Free Software Foundation, Inc., 59 Temple Place,
19 * Suite 330, Boston, MA  02111-1307  USA
20 *
21 * The author of this file:
22 *
23 */
24/*
25 * The source code included in this files was separated from mbfilter.c
26 * by rui hrokawa <hirokawa@php.net> on 8 aug 2011.
27 *
28 */
29
30#ifdef HAVE_CONFIG_H
31#include "config.h"
32#endif
33
34#include "mbfilter.h"
35
36#include "mbfilter_utf8_mobile.h"
37#include "mbfilter_sjis_mobile.h"
38
39extern int mbfl_filt_ident_utf8(int c, mbfl_identify_filter *filter);
40extern int mbfl_filt_conv_utf8_wchar_flush(mbfl_convert_filter *filter);
41
42extern const unsigned char mblen_table_utf8[];
43
44static const char *mbfl_encoding_utf8_docomo_aliases[] = {"UTF-8-DOCOMO", "UTF8-DOCOMO", NULL};
45static const char *mbfl_encoding_utf8_kddi_a_aliases[] = {NULL};
46static const char *mbfl_encoding_utf8_kddi_b_aliases[] = {"UTF-8-Mobile#KDDI", "UTF-8-KDDI", "UTF8-KDDI", NULL};
47static const char *mbfl_encoding_utf8_sb_aliases[] = {"UTF-8-SOFTBANK", "UTF8-SOFTBANK", NULL};
48
49const mbfl_encoding mbfl_encoding_utf8_docomo = {
50    mbfl_no_encoding_utf8_docomo,
51    "UTF-8-Mobile#DOCOMO",
52    "UTF-8",
53    (const char *(*)[])&mbfl_encoding_utf8_docomo_aliases,
54    mblen_table_utf8,
55    MBFL_ENCTYPE_MBCS
56};
57
58const mbfl_encoding mbfl_encoding_utf8_kddi_a = {
59    mbfl_no_encoding_utf8_kddi_a,
60    "UTF-8-Mobile#KDDI-A",
61    "UTF-8",
62    (const char *(*)[])&mbfl_encoding_utf8_kddi_a_aliases,
63    mblen_table_utf8,
64    MBFL_ENCTYPE_MBCS
65};
66
67const mbfl_encoding mbfl_encoding_utf8_kddi_b = {
68    mbfl_no_encoding_utf8_kddi_b,
69    "UTF-8-Mobile#KDDI-B",
70    "UTF-8",
71    (const char *(*)[])&mbfl_encoding_utf8_kddi_b_aliases,
72    mblen_table_utf8,
73    MBFL_ENCTYPE_MBCS
74};
75
76const mbfl_encoding mbfl_encoding_utf8_sb = {
77    mbfl_no_encoding_utf8_sb,
78    "UTF-8-Mobile#SOFTBANK",
79    "UTF-8",
80    (const char *(*)[])&mbfl_encoding_utf8_sb_aliases,
81    mblen_table_utf8,
82    MBFL_ENCTYPE_MBCS
83};
84
85const struct mbfl_identify_vtbl vtbl_identify_utf8_docomo = {
86    mbfl_no_encoding_utf8_docomo,
87    mbfl_filt_ident_common_ctor,
88    mbfl_filt_ident_common_dtor,
89    mbfl_filt_ident_utf8
90};
91
92const struct mbfl_identify_vtbl vtbl_identify_utf8_kddi_a = {
93    mbfl_no_encoding_utf8_kddi_a,
94    mbfl_filt_ident_common_ctor,
95    mbfl_filt_ident_common_dtor,
96    mbfl_filt_ident_utf8
97};
98
99const struct mbfl_identify_vtbl vtbl_identify_utf8_kddi_b = {
100    mbfl_no_encoding_utf8_kddi_b,
101    mbfl_filt_ident_common_ctor,
102    mbfl_filt_ident_common_dtor,
103    mbfl_filt_ident_utf8
104};
105
106const struct mbfl_identify_vtbl vtbl_identify_utf8_sb = {
107    mbfl_no_encoding_utf8_sb,
108    mbfl_filt_ident_common_ctor,
109    mbfl_filt_ident_common_dtor,
110    mbfl_filt_ident_utf8
111};
112
113const struct mbfl_convert_vtbl vtbl_utf8_docomo_wchar = {
114    mbfl_no_encoding_utf8_docomo,
115    mbfl_no_encoding_wchar,
116    mbfl_filt_conv_common_ctor,
117    mbfl_filt_conv_common_dtor,
118    mbfl_filt_conv_utf8_mobile_wchar,
119    mbfl_filt_conv_utf8_wchar_flush
120};
121
122const struct mbfl_convert_vtbl vtbl_wchar_utf8_docomo = {
123    mbfl_no_encoding_wchar,
124    mbfl_no_encoding_utf8_docomo,
125    mbfl_filt_conv_common_ctor,
126    mbfl_filt_conv_common_dtor,
127    mbfl_filt_conv_wchar_utf8_mobile,
128    mbfl_filt_conv_common_flush
129};
130
131const struct mbfl_convert_vtbl vtbl_utf8_kddi_a_wchar = {
132    mbfl_no_encoding_utf8_kddi_a,
133    mbfl_no_encoding_wchar,
134    mbfl_filt_conv_common_ctor,
135    mbfl_filt_conv_common_dtor,
136    mbfl_filt_conv_utf8_mobile_wchar,
137    mbfl_filt_conv_utf8_wchar_flush
138};
139
140const struct mbfl_convert_vtbl vtbl_wchar_utf8_kddi_a = {
141    mbfl_no_encoding_wchar,
142    mbfl_no_encoding_utf8_kddi_a,
143    mbfl_filt_conv_common_ctor,
144    mbfl_filt_conv_common_dtor,
145    mbfl_filt_conv_wchar_utf8_mobile,
146    mbfl_filt_conv_common_flush
147};
148
149const struct mbfl_convert_vtbl vtbl_utf8_kddi_b_wchar = {
150    mbfl_no_encoding_utf8_kddi_b,
151    mbfl_no_encoding_wchar,
152    mbfl_filt_conv_common_ctor,
153    mbfl_filt_conv_common_dtor,
154    mbfl_filt_conv_utf8_mobile_wchar,
155    mbfl_filt_conv_utf8_wchar_flush
156};
157
158const struct mbfl_convert_vtbl vtbl_wchar_utf8_kddi_b = {
159    mbfl_no_encoding_wchar,
160    mbfl_no_encoding_utf8_kddi_b,
161    mbfl_filt_conv_common_ctor,
162    mbfl_filt_conv_common_dtor,
163    mbfl_filt_conv_wchar_utf8_mobile,
164    mbfl_filt_conv_common_flush
165};
166
167const struct mbfl_convert_vtbl vtbl_utf8_sb_wchar = {
168    mbfl_no_encoding_utf8_sb,
169    mbfl_no_encoding_wchar,
170    mbfl_filt_conv_common_ctor,
171    mbfl_filt_conv_common_dtor,
172    mbfl_filt_conv_utf8_mobile_wchar,
173    mbfl_filt_conv_utf8_wchar_flush
174};
175
176const struct mbfl_convert_vtbl vtbl_wchar_utf8_sb = {
177    mbfl_no_encoding_wchar,
178    mbfl_no_encoding_utf8_sb,
179    mbfl_filt_conv_common_ctor,
180    mbfl_filt_conv_common_dtor,
181    mbfl_filt_conv_wchar_utf8_mobile,
182    mbfl_filt_conv_common_flush
183};
184
185#define CK(statement)   do { if ((statement) < 0) return (-1); } while (0)
186
187/*
188 * UTF-8 => wchar
189 */
190int mbfl_filt_conv_utf8_mobile_wchar(int c, mbfl_convert_filter *filter)
191{
192    int s, w = 0, flag = 0;
193    int s1 = 0, c1 = 0, snd = 0;
194
195retry:
196    switch (filter->status & 0xff) {
197    case 0x00:
198        if (c < 0x80) {
199            CK((*filter->output_function)(c, filter->data));
200        } else if (c >= 0xc2 && c <= 0xdf) { /* 2byte code first char: 0xc2-0xdf */
201            filter->status = 0x10;
202            filter->cache = c & 0x1f;
203        } else if (c >= 0xe0 && c <= 0xef) { /* 3byte code first char: 0xe0-0xef */
204            filter->status = 0x20;
205            filter->cache = c & 0xf;
206        } else if (c >= 0xf0 && c <= 0xf4) { /* 3byte code first char: 0xf0-0xf4 */
207            filter->status = 0x30;
208            filter->cache = c & 0x7;
209        } else {
210            mbfl_filt_put_invalid_char(c, filter);
211        }
212        break;
213    case 0x10: /* 2byte code 2nd char: 0x80-0xbf */
214    case 0x21: /* 3byte code 3rd char: 0x80-0xbf */
215    case 0x32: /* 4byte code 4th char: 0x80-0xbf */
216        filter->status = 0;
217        if (c >= 0x80 && c <= 0xbf) {
218            s = (filter->cache<<6) | (c & 0x3f);
219            filter->cache = 0;
220
221            if (filter->from->no_encoding == mbfl_no_encoding_utf8_docomo &&
222                mbfilter_conv_r_map_tbl(s, &s1, mbfl_docomo2uni_pua, 4) > 0) {
223                s = mbfilter_sjis_emoji_docomo2unicode(s1, &snd);
224            } else if (filter->from->no_encoding == mbfl_no_encoding_utf8_kddi_a &&
225                       mbfilter_conv_r_map_tbl(s, &s1, mbfl_kddi2uni_pua, 7) > 0) {
226                s = mbfilter_sjis_emoji_kddi2unicode(s1, &snd);
227            } else if (filter->from->no_encoding == mbfl_no_encoding_utf8_kddi_b &&
228                       mbfilter_conv_r_map_tbl(s, &s1, mbfl_kddi2uni_pua_b, 8) > 0) {
229                s = mbfilter_sjis_emoji_kddi2unicode(s1, &snd);
230            } else if (filter->from->no_encoding == mbfl_no_encoding_utf8_sb &&
231                       mbfilter_conv_r_map_tbl(s, &s1, mbfl_sb2uni_pua, 6) > 0) {
232                s = mbfilter_sjis_emoji_sb2unicode(s1, &snd);
233            }
234
235            if (snd > 0) {
236                CK((*filter->output_function)(snd, filter->data));
237            }
238            CK((*filter->output_function)(s, filter->data));
239        } else {
240            mbfl_filt_put_invalid_char(filter->cache, filter);
241            goto retry;
242        }
243        break;
244    case 0x20: /* 3byte code 2nd char: 0:0xa0-0xbf,D:0x80-9F,1-C,E-F:0x80-0x9f */
245        s = (filter->cache<<6) | (c & 0x3f);
246        c1 = filter->cache & 0xf;
247
248        if ((c >= 0x80 && c <= 0xbf) &&
249            ((c1 == 0x0 && c >= 0xa0) ||
250             (c1 == 0xd && c < 0xa0) ||
251             (c1 > 0x0 && c1 != 0xd))) {
252            filter->cache = s;
253            filter->status++;
254        } else {
255            mbfl_filt_put_invalid_char(filter->cache, filter);
256            goto retry;
257        }
258        break;
259    case 0x30: /* 4byte code 2nd char: 0:0x90-0xbf,1-3:0x80-0xbf,4:0x80-0x8f */
260        s = (filter->cache<<6) | (c & 0x3f);
261        c1 = filter->cache & 0x7;
262
263        if ((c >= 0x80 && c <= 0xbf) &&
264            ((c1 == 0x0 && c >= 0x90) ||
265             (c1 == 0x4 && c < 0x90) ||
266             (c1 > 0x0 && c1 != 0x4))) {
267            filter->cache = s;
268            filter->status++;
269        } else {
270            mbfl_filt_put_invalid_char(filter->cache, filter);
271            goto retry;
272        }
273        break;
274    case 0x31: /* 4byte code 3rd char: 0x80-0xbf */
275        if (c >= 0x80 && c <= 0xbf) {
276            filter->cache = (filter->cache<<6) | (c & 0x3f);
277            filter->status++;
278        } else {
279            mbfl_filt_put_invalid_char(filter->cache, filter);
280            goto retry;
281        }
282        break;
283    default:
284        filter->status = 0;
285        break;
286    }
287
288    return c;
289}
290
291/*
292 * wchar => UTF-8
293 */
294int mbfl_filt_conv_wchar_utf8_mobile(int c, mbfl_convert_filter *filter)
295{
296    if (c >= 0 && c < 0x110000) {
297        int s1, c1;
298
299        if ((filter->to->no_encoding == mbfl_no_encoding_utf8_docomo &&
300             mbfilter_unicode2sjis_emoji_docomo(c, &s1, filter) > 0 &&
301             mbfilter_conv_map_tbl(s1, &c1, mbfl_docomo2uni_pua, 4) > 0) ||
302            (filter->to->no_encoding == mbfl_no_encoding_utf8_kddi_a &&
303             mbfilter_unicode2sjis_emoji_kddi(c, &s1, filter) > 0 &&
304             mbfilter_conv_map_tbl(s1, &c1, mbfl_kddi2uni_pua, 7) > 0) ||
305            (filter->to->no_encoding == mbfl_no_encoding_utf8_kddi_b &&
306             mbfilter_unicode2sjis_emoji_kddi(c, &s1, filter) > 0 &&
307             mbfilter_conv_map_tbl(s1, &c1, mbfl_kddi2uni_pua_b, 8) > 0) ||
308            (filter->to->no_encoding == mbfl_no_encoding_utf8_sb &&
309             mbfilter_unicode2sjis_emoji_sb(c, &s1, filter) > 0 &&
310             mbfilter_conv_map_tbl(s1, &c1, mbfl_sb2uni_pua, 6) > 0)) {
311            c = c1;
312        }
313
314        if (filter->status == 1 && filter->cache > 0) {
315            return c;
316        }
317
318        if (c < 0x80) {
319            CK((*filter->output_function)(c, filter->data));
320        } else if (c < 0x800) {
321            CK((*filter->output_function)(((c >> 6) & 0x1f) | 0xc0, filter->data));
322            CK((*filter->output_function)((c & 0x3f) | 0x80, filter->data));
323        } else if (c < 0x10000) {
324            CK((*filter->output_function)(((c >> 12) & 0x0f) | 0xe0, filter->data));
325            CK((*filter->output_function)(((c >> 6) & 0x3f) | 0x80, filter->data));
326            CK((*filter->output_function)((c & 0x3f) | 0x80, filter->data));
327        } else {
328            CK((*filter->output_function)(((c >> 18) & 0x07) | 0xf0, filter->data));
329            CK((*filter->output_function)(((c >> 12) & 0x3f) | 0x80, filter->data));
330            CK((*filter->output_function)(((c >> 6) & 0x3f) | 0x80, filter->data));
331            CK((*filter->output_function)((c & 0x3f) | 0x80, filter->data));
332        }
333    } else {
334        if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
335            CK(mbfl_filt_conv_illegal_output(c, filter));
336        }
337    }
338
339    return c;
340}
341
342