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_iso2022_jp_ms.c
26 * by Rui Hirokawa <hirokawa@php.net> on 25 July 2011.
27 *
28 */
29
30#ifdef HAVE_CONFIG_H
31#include "config.h"
32#endif
33
34#include "mbfilter.h"
35#include "mbfilter_iso2022jp_mobile.h"
36#include "mbfilter_sjis_mobile.h"
37
38#include "unicode_table_cp932_ext.h"
39#include "unicode_table_jis.h"
40#include "cp932_table.h"
41
42extern int mbfl_filt_conv_any_jis_flush(mbfl_convert_filter *filter);
43extern int mbfl_filt_ident_2022jpms(int c, mbfl_identify_filter *filter);
44
45static const char *mbfl_encoding_2022jp_kddi_aliases[] = {"ISO-2022-JP-KDDI", NULL};
46
47const mbfl_encoding mbfl_encoding_2022jp_kddi = {
48    mbfl_no_encoding_2022jp_kddi,
49    "ISO-2022-JP-MOBILE#KDDI",
50    "ISO-2022-JP",
51    mbfl_encoding_2022jp_kddi_aliases,
52    NULL,
53    MBFL_ENCTYPE_MBCS | MBFL_ENCTYPE_SHFTCODE | MBFL_ENCTYPE_GL_UNSAFE
54};
55
56const struct mbfl_identify_vtbl vtbl_identify_2022jp_kddi = {
57    mbfl_no_encoding_2022jp_kddi,
58    mbfl_filt_ident_common_ctor,
59    mbfl_filt_ident_common_dtor,
60    mbfl_filt_ident_2022jpms
61};
62
63const struct mbfl_convert_vtbl vtbl_2022jp_kddi_wchar = {
64    mbfl_no_encoding_2022jp_kddi,
65    mbfl_no_encoding_wchar,
66    mbfl_filt_conv_common_ctor,
67    mbfl_filt_conv_common_dtor,
68    mbfl_filt_conv_2022jp_mobile_wchar,
69    mbfl_filt_conv_common_flush
70};
71
72const struct mbfl_convert_vtbl vtbl_wchar_2022jp_kddi = {
73    mbfl_no_encoding_wchar,
74    mbfl_no_encoding_2022jp_kddi,
75    mbfl_filt_conv_common_ctor,
76    mbfl_filt_conv_common_dtor,
77    mbfl_filt_conv_wchar_2022jp_mobile,
78    mbfl_filt_conv_any_jis_flush
79};
80
81#define CK(statement)   do { if ((statement) < 0) return (-1); } while (0)
82
83#define sjistoidx(c1, c2) \
84        (((c1) > 0x9f) \
85        ? (((c1) - 0xc1) * 188 + (c2) - (((c2) > 0x7e) ? 0x41 : 0x40)) \
86        : (((c1) - 0x81) * 188 + (c2) - (((c2) > 0x7e) ? 0x41 : 0x40)))
87#define idxtojis1(c) (((c) / 94) + 0x21)
88#define idxtojis2(c) (((c) % 94) + 0x21)
89
90#define SJIS_ENCODE(c1,c2,s1,s2)    \
91        do {                        \
92            s1 = c1;                \
93            s1--;                   \
94            s1 >>= 1;               \
95            if ((c1) < 0x5f) {      \
96                s1 += 0x71;         \
97            } else {                \
98                s1 += 0xb1;         \
99            }                       \
100            s2 = c2;                \
101            if ((c1) & 1) {         \
102                if ((c2) < 0x60) {  \
103                    s2--;           \
104                }                   \
105                s2 += 0x20;         \
106            } else {                \
107                s2 += 0x7e;         \
108            }                       \
109        } while (0)
110
111#define SJIS_DECODE(c1,c2,s1,s2)    \
112        do {                        \
113            s1 = c1;                \
114            if (s1 < 0xa0) {        \
115                s1 -= 0x81;         \
116            } else {                \
117                s1 -= 0xc1;         \
118            }                       \
119            s1 <<= 1;               \
120            s1 += 0x21;             \
121            s2 = c2;                \
122            if (s2 < 0x9f) {        \
123                if (s2 < 0x7f) {    \
124                    s2++;           \
125                }                   \
126                s2 -= 0x20;         \
127            } else {                \
128                s1++;               \
129                s2 -= 0x7e;         \
130            }                       \
131        } while (0)
132
133#define CODE2JIS(c1,c2,s1,s2)       \
134    c1 = (s1)/94+0x21;              \
135    c2 = (s1)-94*((c1)-0x21)+0x21;  \
136    s1 = ((c1) << 8) | (c2);        \
137    s2 = 1
138
139/*
140 * ISO-2022-JP-Mobile => wchar
141 */
142int
143mbfl_filt_conv_2022jp_mobile_wchar(int c, mbfl_convert_filter *filter)
144{
145    int c1, s, w, snd;
146
147retry:
148    switch (filter->status & 0xf) {
149/*  case 0x00:   ASCII */
150/*  case 0x10:   X 0201 latin */
151/*  case 0x20:   X 0201 kana */
152/*  case 0x80:   X 0208 */
153    case 0:
154        if (c == 0x1b) {
155            filter->status += 2;
156        } else if (filter->status == 0x20 && c > 0x20 && c < 0x60) {        /* kana */
157            CK((*filter->output_function)(0xff40 + c, filter->data));
158        } else if (filter->status == 0x80 && c > 0x20 && c < 0x80) {        /* kanji first char */
159            filter->cache = c;
160            filter->status += 1;
161        } else if (c >= 0 && c < 0x80) {        /* latin, CTLs */
162            CK((*filter->output_function)(c, filter->data));
163        } else if (c > 0xa0 && c < 0xe0) {  /* GR kana */
164            CK((*filter->output_function)(0xfec0 + c, filter->data));
165        } else {
166            w = c & MBFL_WCSGROUP_MASK;
167            w |= MBFL_WCSGROUP_THROUGH;
168            CK((*filter->output_function)(w, filter->data));
169        }
170        break;
171
172/*  case 0x81:   X 0208 second char */
173    case 1:
174        w = 0;
175        filter->status &= ~0xf;
176        c1 = filter->cache;
177        if (c > 0x20 && c < 0x7f) {
178            s = (c1 - 0x21)*94 + c - 0x21;
179
180            if (s <= 137) {
181                if (s == 31) {
182                    w = 0xff3c;         /* FULLWIDTH REVERSE SOLIDUS */
183                } else if (s == 32) {
184                    w = 0xff5e;         /* FULLWIDTH TILDE */
185                } else if (s == 33) {
186                    w = 0x2225;         /* PARALLEL TO */
187                } else if (s == 60) {
188                    w = 0xff0d;         /* FULLWIDTH HYPHEN-MINUS */
189                } else if (s == 80) {
190                    w = 0xffe0;         /* FULLWIDTH CENT SIGN */
191                } else if (s == 81) {
192                    w = 0xffe1;         /* FULLWIDTH POUND SIGN */
193                } else if (s == 137) {
194                    w = 0xffe2;         /* FULLWIDTH NOT SIGN */
195                }
196            }
197
198            if (w == 0) {
199                if (s >= cp932ext1_ucs_table_min && s < cp932ext1_ucs_table_max) {      /* vendor ext1 (13ku) */
200                    w = cp932ext1_ucs_table[s - cp932ext1_ucs_table_min];
201                } else if (s >= 0 && s < jisx0208_ucs_table_size) {
202                    w = jisx0208_ucs_table[s];
203                } else {
204                    w = 0;
205                }
206            }
207
208            if (s >= (84*94) && s < 91*94) {
209                s += 22*94;
210                if (filter->from->no_encoding == mbfl_no_encoding_2022jp_kddi) {
211                    w = mbfilter_sjis_emoji_kddi2unicode(s, &snd);
212                }
213                if (w > 0  && snd > 0) {
214                    CK((*filter->output_function)(snd, filter->data));
215                }
216            }
217
218            if (w <= 0) {
219                w = (c1 << 8) | c;
220                w &= MBFL_WCSPLANE_MASK;
221                w |= MBFL_WCSPLANE_JIS0208;
222                }
223            CK((*filter->output_function)(w, filter->data));
224        } else if (c == 0x1b) {
225            filter->status += 2;
226        } else if ((c >= 0 && c < 0x21) || c == 0x7f) {     /* CTLs */
227            CK((*filter->output_function)(c, filter->data));
228        } else {
229            w = (c1 << 8) | c;
230            w &= MBFL_WCSGROUP_MASK;
231            w |= MBFL_WCSGROUP_THROUGH;
232            CK((*filter->output_function)(w, filter->data));
233        }
234        break;
235
236    /* ESC */
237/*  case 0x02:  */
238/*  case 0x12:  */
239/*  case 0x22:  */
240/*  case 0x82:  */
241    case 2:
242        if (c == 0x24) {        /* '$' */
243            filter->status++;
244        } else if (c == 0x28) {     /* '(' */
245            filter->status += 3;
246        } else {
247            filter->status &= ~0xf;
248            CK((*filter->output_function)(0x1b, filter->data));
249            goto retry;
250        }
251        break;
252
253    /* ESC $ */
254/*  case 0x03:  */
255/*  case 0x13:  */
256/*  case 0x23:  */
257/*  case 0x83:  */
258    case 3:
259        if (c == 0x40 || c == 0x42) {   /* '@' or 'B' */
260            filter->status = 0x80;
261        } else if (c == 0x28) {     /* '(' */
262            filter->status++;
263        } else {
264            filter->status &= ~0xf;
265            CK((*filter->output_function)(0x1b, filter->data));
266            CK((*filter->output_function)(0x24, filter->data));
267            goto retry;
268        }
269        break;
270
271    /* ESC $ ( */
272/*  case 0x04:  */
273/*  case 0x14:  */
274/*  case 0x24:  */
275/*  case 0x84:  */
276    case 4:
277        if (c == 0x40 || c == 0x42) {   /* '@' or 'B' */
278            filter->status = 0x80;
279        } else {
280            filter->status &= ~0xf;
281            CK((*filter->output_function)(0x1b, filter->data));
282            CK((*filter->output_function)(0x24, filter->data));
283            CK((*filter->output_function)(0x28, filter->data));
284            goto retry;
285        }
286        break;
287
288    /* ESC ( */
289/*  case 0x05:  */
290/*  case 0x15:  */
291/*  case 0x25:  */
292/*  case 0x85:  */
293    case 5:
294        if (c == 0x42) {        /* 'B' */
295            filter->status = 0;
296        } else if (c == 0x4a) {     /* 'J' */
297            filter->status = 0;
298        } else if (c == 0x49) {     /* 'I' */
299            filter->status = 0x20;
300        } else {
301            filter->status &= ~0xf;
302            CK((*filter->output_function)(0x1b, filter->data));
303            CK((*filter->output_function)(0x28, filter->data));
304            goto retry;
305        }
306        break;
307
308    default:
309        filter->status = 0;
310        break;
311    }
312
313    return c;
314}
315
316/*
317 * wchar => ISO-2022-JP-Mobile
318 */
319int
320mbfl_filt_conv_wchar_2022jp_mobile(int c, mbfl_convert_filter *filter)
321{
322    int c1, c2, s1, s2;
323
324    s1 = 0;
325    s2 = 0;
326    if (c >= ucs_a1_jis_table_min && c < ucs_a1_jis_table_max) {
327        s1 = ucs_a1_jis_table[c - ucs_a1_jis_table_min];
328    } else if (c >= ucs_a2_jis_table_min && c < ucs_a2_jis_table_max) {
329        s1 = ucs_a2_jis_table[c - ucs_a2_jis_table_min];
330    } else if (c >= ucs_i_jis_table_min && c < ucs_i_jis_table_max) {
331        s1 = ucs_i_jis_table[c - ucs_i_jis_table_min];
332    } else if (c >= ucs_r_jis_table_min && c < ucs_r_jis_table_max) {
333        s1 = ucs_r_jis_table[c - ucs_r_jis_table_min];
334    } else if (c >= 0xe000 && c < (0xe000 + 20*94)) {   /* user  (95ku - 114ku) */
335        s1 = c - 0xe000;
336        c1 = s1/94 + 0x7f;
337        c2 = s1%94 + 0x21;
338        s1 = (c1 << 8) | c2;
339    }
340    if (s1 <= 0) {
341        c1 = c & ~MBFL_WCSPLANE_MASK;
342        if (c1 == MBFL_WCSPLANE_WINCP932) {
343            s1 = c & MBFL_WCSPLANE_MASK;
344            s2 = 1;
345        } else if (c1 == MBFL_WCSPLANE_JIS0208) {
346            s1 = c & MBFL_WCSPLANE_MASK;
347        } else if (c1 == MBFL_WCSPLANE_JIS0212) {
348            s1 = c & MBFL_WCSPLANE_MASK;
349            s1 |= 0x8080;
350        } else if (c == 0xa5) {     /* YEN SIGN */
351            s1 = 0x216f;                /* FULLWIDTH YEN SIGN */
352        } else if (c == 0x203e) {   /* OVER LINE */
353            s1 = 0x2131;    /* FULLWIDTH MACRON */
354        } else if (c == 0xff3c) {   /* FULLWIDTH REVERSE SOLIDUS */
355            s1 = 0x2140;
356        } else if (c == 0xff5e) {   /* FULLWIDTH TILDE */
357            s1 = 0x2141;
358        } else if (c == 0x2225) {   /* PARALLEL TO */
359            s1 = 0x2142;
360        } else if (c == 0xff0d) {   /* FULLWIDTH HYPHEN-MINUS */
361            s1 = 0x215d;
362        } else if (c == 0xffe0) {   /* FULLWIDTH CENT SIGN */
363            s1 = 0x2171;
364        } else if (c == 0xffe1) {   /* FULLWIDTH POUND SIGN */
365            s1 = 0x2172;
366        } else if (c == 0xffe2) {   /* FULLWIDTH NOT SIGN */
367            s1 = 0x224c;
368        }
369    }
370
371    if ((s1 <= 0) || (s1 >= 0xa1a1 && s2 == 0)) { /* not found or X 0212 */
372        s1 = -1;
373        c1 = 0;
374        c2 = cp932ext1_ucs_table_max - cp932ext1_ucs_table_min;
375        while (c1 < c2) {       /* CP932 vendor ext1 (13ku) */
376            if (c == cp932ext1_ucs_table[c1]) {
377                s1 = ((c1/94 + 0x2d) << 8) + (c1%94 + 0x21);
378                break;
379            }
380            c1++;
381        }
382        if (c == 0) {
383            s1 = 0;
384        } else if (s1 <= 0) {
385            s1 = -1;
386        }
387    }
388
389    if (filter->to->no_encoding == mbfl_no_encoding_2022jp_kddi &&
390        mbfilter_unicode2sjis_emoji_kddi(c, &s1, filter) > 0) {
391        CODE2JIS(c1,c2,s1,s2);
392        s1 -= 0x1600;
393    }
394
395    if (filter->status == 1 && filter->cache > 0) {
396        return c;
397    }
398
399    if (s1 >= 0) {
400        if (s1 < 0x80) { /* latin */
401            if ((filter->status & 0xff00) != 0) {
402                CK((*filter->output_function)(0x1b, filter->data));     /* ESC */
403                CK((*filter->output_function)(0x28, filter->data));     /* '(' */
404                CK((*filter->output_function)(0x42, filter->data));     /* 'B' */
405            }
406            CK((*filter->output_function)(s1, filter->data));
407            filter->status = 0;
408        } else if (s1 > 0xa0 && s1 < 0xe0) { /* kana */
409            if ((filter->status & 0xff00) != 0x100) {
410                CK((*filter->output_function)(0x1b, filter->data));     /* ESC */
411                CK((*filter->output_function)(0x28, filter->data));     /* '(' */
412                CK((*filter->output_function)(0x49, filter->data));     /* 'I' */
413            }
414            filter->status = 0x100;
415            CK((*filter->output_function)(s1 & 0x7f, filter->data));
416        } else if (s1 < 0x7e7f) { /* X 0208 */
417            if ((filter->status & 0xff00) != 0x200) {
418                CK((*filter->output_function)(0x1b, filter->data));     /* ESC */
419                CK((*filter->output_function)(0x24, filter->data));     /* '$' */
420                CK((*filter->output_function)(0x42, filter->data));     /* 'B' */
421            }
422            filter->status = 0x200;
423            CK((*filter->output_function)((s1 >> 8) & 0xff, filter->data));
424            CK((*filter->output_function)(s1 & 0x7f, filter->data));
425        }
426    } else {
427        if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
428            CK(mbfl_filt_conv_illegal_output(c, filter));
429        }
430    }
431
432    return c;
433}
434