summaryrefslogtreecommitdiffstats
path: root/src/codecs/qtsciicodec.cpp
blob: 71a0c831252baaee60555962bfbf5b83acb99ad5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
/****************************************************************************
**
** Implementation of QTsciiCodec class
**
** Copyright (C) 2000-2008 Trolltech ASA.  All rights reserved.
**
** This file is part of the tools module of the Qt GUI Toolkit.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free Qt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.QPL
** included in the packaging of this file.  Licensees holding valid Qt
** Commercial licenses may use this file in accordance with the Qt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/

// Most of the code here was originally written by Hans Petter Bieker,
// and is included in Qt with the author's permission, and the grateful
// thanks of the Trolltech team.

/*! \class QTsciiCodec qtsciicodec.h
    \reentrant
    \ingroup i18n

  \brief The QTsciiCodec class provides conversion to and from the Tamil TSCII encoding.

  TSCII, formally the Tamil Standard Code Information Interchange
  specification, is a commonly used charset for Tamils. The
  official page for the standard is at
  \link http://www.tamil.net/tscii/ http://www.tamil.net/tscii/\endlink

  This codec uses the mapping table found at
  \link http://www.geocities.com/Athens/5180/tsciiset.html
  http://www.geocities.com/Athens/5180/tsciiset.html\endlink.
  Tamil uses composed Unicode which might cause some
  problems if you are using Unicode fonts instead of TSCII fonts.

  Most of the code here  was written by Hans Petter Bieker
  and is included in Qt with the author's permission and the
  grateful thanks of the Trolltech team.
  Here is the copyright statement for the code as it was at the
  point of contribution. Trolltech's subsequent modifications
  are covered by the usual copyright for Qt.

  \legalese

  Copyright (C) 2000 Hans Petter Bieker. All rights reserved.

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions
  are met:
  \list 1
  \i Redistributions of source code must retain the above copyright
	notice, this list of conditions and the following disclaimer.
  \i Redistributions in binary form must reproduce the above copyright
	notice, this list of conditions and the following disclaimer in the
	documentation and/or other materials provided with the distribution.
  \endlist

  THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  SUCH DAMAGE.
*/

#include "qtsciicodec.h"

#ifndef QT_NO_CODECS

static unsigned char qt_UnicodeToTSCII(ushort u1, ushort u2, ushort u3);
static unsigned int qt_TSCIIToUnicode(unsigned int code, uint *s);

#define IsTSCIIChar(c)	(((c) >= 0x80) && ((c) <= 0xfd))
#define	QValidChar(u)	((u) ? QChar((u)) : QChar::replacement)

/*! \reimp */
int QTsciiCodec::mibEnum() const
{
  /* There is no MIBEnum for TSCII now */
  return 2028;
}

/*! \reimp */
QCString QTsciiCodec::fromUnicode(const QString& uc, int& lenInOut) const
{
    int l = QMIN((int)uc.length(), lenInOut);
    int rlen = l+1;
    QCString rstr(rlen);
    uchar* cursor = (uchar*)rstr.data();
    for (int i = 0; i < l; i++) {
	QChar ch = uc[i];
	uchar j;
	if ( ch.row() == 0x00 && ch.cell() < 0x80 ) {
	    // ASCII
	    j = ch.cell();
	} else if ((j = qt_UnicodeToTSCII(uc[i].unicode(),
					  uc[i + 1].unicode(),
					  uc[i + 2].unicode()))) {
	    // We have to check the combined chars first!
	    i += 2;
	} else if ((j = qt_UnicodeToTSCII(uc[i].unicode(),
					  uc[i + 1].unicode(), 0))) {
	    i++;
	} else if ((j = qt_UnicodeToTSCII(uc[i].unicode(), 0, 0))) {
	} else {
	    // Error
	    j = '?';	// unknown char
	}
	*cursor++ = j;
    }
    lenInOut = cursor - (uchar*)rstr.data();
    *cursor = 0;
    return rstr;
}

/*! \reimp */
QString QTsciiCodec::toUnicode(const char* chars, int len) const
{
    QString result;
    for (int i = 0; i < len; i++) {
	uchar ch = chars[i];
	if ( ch < 0x80 ) {
	    // ASCII
	    result += QChar(ch);
	} else if ( IsTSCIIChar(ch) ) {
	    // TSCII
	    uint s[3];
	    uint u = qt_TSCIIToUnicode(ch, s);
	    uint *p = s;
	    while ( u-- ) {
		uint c = *p++;
		result += QValidChar(c);
	    }
	} else {
	    // Invalid
	    result += QChar::replacement;
	}
    }

    return result;
}

/*! \reimp */
const char* QTsciiCodec::name() const
{
    return "TSCII";
}

/*! \reimp */
int QTsciiCodec::heuristicNameMatch(const char* hint) const
{
    const char *p = strchr(hint, '.');
    if (p)
        p++;
    else
        p = hint;
    if (tqstricmp(p, "TSCII") == 0)
      	return 4;
    return QTextCodec::heuristicNameMatch(hint);
}

/*! \reimp */
int QTsciiCodec::heuristicContentMatch(const char* chars, int len) const
{
    int score = 0;
    for (int i=0; i<len; i++) {
	uchar ch = chars[i];
	// No nulls allowed.
	if ( !ch )
	    return -1;
	if ( ch < 32 && ch != '\t' && ch != '\n' && ch != '\r' ) {
	    // Suspicious
	    if ( score )
		score--;
	} else if ( ch < 0x80 ) {
	    // Inconclusive
	} else if ( IsTSCIIChar(ch) ) {
	    score++;
	} else {
	    // Invalid
	    return -1;
	}
    }
    return score;
}

static const int UnToTsLast = 124; // 125 items -- so the last will be 124
static const ushort UnToTs [][4] = {
    // *Sorted* list of TSCII maping for unicode chars
    //FIRST  SECOND  THIRD   TSCII
    {0x00A0, 0x0000, 0x0000, 0xA0},
    {0x00A9, 0x0000, 0x0000, 0xA9},
    {0x0B83, 0x0000, 0x0000, 0xB7},
    {0x0B85, 0x0000, 0x0000, 0xAB},
    {0x0B86, 0x0000, 0x0000, 0xAC},
    {0x0B87, 0x0000, 0x0000, 0xAD},
    {0x0B88, 0x0000, 0x0000, 0xAE},
    {0x0B89, 0x0000, 0x0000, 0xAF},
    {0x0B8A, 0x0000, 0x0000, 0xB0},
    {0x0B8E, 0x0000, 0x0000, 0xB1},
    {0x0B8F, 0x0000, 0x0000, 0xB2},
    {0x0B90, 0x0000, 0x0000, 0xB3},
    {0x0B92, 0x0000, 0x0000, 0xB4},
    {0x0B93, 0x0000, 0x0000, 0xB5},
    {0x0B94, 0x0000, 0x0000, 0xB6},
    {0x0B95, 0x0000, 0x0000, 0xB8},
    {0x0B95, 0x0B82, 0x0000, 0xEC},
    {0x0B95, 0x0BC1, 0x0000, 0xCC},
    {0x0B95, 0x0BC2, 0x0000, 0xDC},
    {0x0B99, 0x0000, 0x0000, 0xB9},
    {0x0B99, 0x0B82, 0x0000, 0xED},
    {0x0B99, 0x0BC1, 0x0000, 0x99},
    {0x0B99, 0x0BC2, 0x0000, 0x9B},
    {0x0B9A, 0x0000, 0x0000, 0xBA},
    {0x0B9A, 0x0B82, 0x0000, 0xEE},
    {0x0B9A, 0x0BC1, 0x0000, 0xCD},
    {0x0B9A, 0x0BC2, 0x0000, 0xDD},
    {0x0B9C, 0x0000, 0x0000, 0x83},
    {0x0B9C, 0x0B82, 0x0000, 0x88},
    {0x0B9E, 0x0000, 0x0000, 0xBB},
    {0x0B9E, 0x0B82, 0x0000, 0xEF},
    {0x0B9E, 0x0BC1, 0x0000, 0x9A},
    {0x0B9E, 0x0BC2, 0x0000, 0x9C},
    {0x0B9F, 0x0000, 0x0000, 0xBC},
    {0x0B9F, 0x0B82, 0x0000, 0xF0},
    {0x0B9F, 0x0BBF, 0x0000, 0xCA},
    {0x0B9F, 0x0BC0, 0x0000, 0xCB},
    {0x0B9F, 0x0BC1, 0x0000, 0xCE},
    {0x0B9F, 0x0BC2, 0x0000, 0xDE},
    {0x0BA1, 0x0B82, 0x0000, 0xF2},
    {0x0BA3, 0x0000, 0x0000, 0xBD},
    {0x0BA3, 0x0B82, 0x0000, 0xF1},
    {0x0BA3, 0x0BC1, 0x0000, 0xCF},
    {0x0BA3, 0x0BC2, 0x0000, 0xDF},
    {0x0BA4, 0x0000, 0x0000, 0xBE},
    {0x0BA4, 0x0BC1, 0x0000, 0xD0},
    {0x0BA4, 0x0BC2, 0x0000, 0xE0},
    {0x0BA8, 0x0000, 0x0000, 0xBF},
    {0x0BA8, 0x0B82, 0x0000, 0xF3},
    {0x0BA8, 0x0BC1, 0x0000, 0xD1},
    {0x0BA8, 0x0BC2, 0x0000, 0xE1},
    {0x0BA9, 0x0000, 0x0000, 0xC9},
    {0x0BA9, 0x0B82, 0x0000, 0xFD},
    {0x0BA9, 0x0BC1, 0x0000, 0xDB},
    {0x0BA9, 0x0BC2, 0x0000, 0xEB},
    {0x0BAA, 0x0000, 0x0000, 0xC0},
    {0x0BAA, 0x0B82, 0x0000, 0xF4},
    {0x0BAA, 0x0BC1, 0x0000, 0xD2},
    {0x0BAA, 0x0BC2, 0x0000, 0xE2},
    {0x0BAE, 0x0000, 0x0000, 0xC1},
    {0x0BAE, 0x0B82, 0x0000, 0xF5},
    {0x0BAE, 0x0BC1, 0x0000, 0xD3},
    {0x0BAE, 0x0BC2, 0x0000, 0xE3},
    {0x0BAF, 0x0000, 0x0000, 0xC2},
    {0x0BAF, 0x0B82, 0x0000, 0xF6},
    {0x0BAF, 0x0BC1, 0x0000, 0xD4},
    {0x0BAF, 0x0BC2, 0x0000, 0xE4},
    {0x0BB0, 0x0000, 0x0000, 0xC3},
    {0x0BB0, 0x0B82, 0x0000, 0xF7},
    {0x0BB0, 0x0BC1, 0x0000, 0xD5},
    {0x0BB0, 0x0BC2, 0x0000, 0xE5},
    {0x0BB1, 0x0000, 0x0000, 0xC8},
    {0x0BB1, 0x0B82, 0x0000, 0xFC},
    {0x0BB1, 0x0BC1, 0x0000, 0xDA},
    {0x0BB1, 0x0BC2, 0x0000, 0xEA},
    {0x0BB2, 0x0000, 0x0000, 0xC4},
    {0x0BB2, 0x0B82, 0x0000, 0xF8},
    {0x0BB2, 0x0BC1, 0x0000, 0xD6},
    {0x0BB2, 0x0BC2, 0x0000, 0xE6},
    {0x0BB3, 0x0000, 0x0000, 0xC7},
    {0x0BB3, 0x0B82, 0x0000, 0xFB},
    {0x0BB3, 0x0BC1, 0x0000, 0xD9},
    {0x0BB3, 0x0BC2, 0x0000, 0xE9},
    {0x0BB4, 0x0000, 0x0000, 0xC6},
    {0x0BB4, 0x0B82, 0x0000, 0xFA},
    {0x0BB4, 0x0BC1, 0x0000, 0xD8},
    {0x0BB4, 0x0BC2, 0x0000, 0xE8},
    {0x0BB5, 0x0000, 0x0000, 0xC5},
    {0x0BB5, 0x0B82, 0x0000, 0xF9},
    {0x0BB5, 0x0BC1, 0x0000, 0xD7},
    {0x0BB5, 0x0BC2, 0x0000, 0xE7},
    {0x0BB7, 0x0000, 0x0000, 0x84},
    {0x0BB7, 0x0B82, 0x0000, 0x89},
    {0x0BB8, 0x0000, 0x0000, 0x85},
    {0x0BB8, 0x0B82, 0x0000, 0x8A},
    {0x0BB9, 0x0000, 0x0000, 0x86},
    {0x0BB9, 0x0B82, 0x0000, 0x8B},
    {0x0BBE, 0x0000, 0x0000, 0xA1},
    {0x0BBF, 0x0000, 0x0000, 0xA2},
    {0x0BC0, 0x0000, 0x0000, 0xA3},
    {0x0BC1, 0x0000, 0x0000, 0xA4},
    {0x0BC2, 0x0000, 0x0000, 0xA5},
    {0x0BC6, 0x0000, 0x0000, 0xA6},
    {0x0BC7, 0x0000, 0x0000, 0xA7},
    {0x0BC8, 0x0000, 0x0000, 0xA8},
    {0x0BCC, 0x0000, 0x0000, 0xAA},
    {0x0BE6, 0x0000, 0x0000, 0x80},
    {0x0BE7, 0x0000, 0x0000, 0x81},
    {0x0BE7, 0x0BB7, 0x0000, 0x87},
    {0x0BE7, 0x0BB7, 0x0B82, 0x8C},
    {0x0BE8, 0x0000, 0x0000, 0x8D},
    {0x0BE9, 0x0000, 0x0000, 0x8E},
    {0x0BEA, 0x0000, 0x0000, 0x8F},
    {0x0BEB, 0x0000, 0x0000, 0x90},
    {0x0BEC, 0x0000, 0x0000, 0x95},
    {0x0BED, 0x0000, 0x0000, 0x96},
    {0x0BEE, 0x0000, 0x0000, 0x97},
    {0x0BEF, 0x0000, 0x0000, 0x98},
    {0x0BF0, 0x0000, 0x0000, 0x9D},
    {0x0BF1, 0x0000, 0x0000, 0x9E},
    {0x0BF2, 0x0000, 0x0000, 0x9F},
    {0x2018, 0x0000, 0x0000, 0x91},
    {0x2019, 0x0000, 0x0000, 0x92},
    {0x201C, 0x0000, 0x0000, 0x93},
    {0x201C, 0x0000, 0x0000, 0x94}
};

static const ushort TsToUn [][3] = {
    // Starting at 0x80
    {0x0BE6, 0x0000, 0x0000},
    {0x0BE7, 0x0000, 0x0000},
    {0x0000, 0x0000, 0x0000}, // unknown
    {0x0B9C, 0x0000, 0x0000},
    {0x0BB7, 0x0000, 0x0000},
    {0x0BB8, 0x0000, 0x0000},
    {0x0BB9, 0x0000, 0x0000},
    {0x0BE7, 0x0BB7, 0x0000},
    {0x0B9C, 0x0B82, 0x0000},
    {0x0BB7, 0x0B82, 0x0000},
    {0x0BB8, 0x0B82, 0x0000},
    {0x0BB9, 0x0B82, 0x0000},
    {0x0BE7, 0x0BB7, 0x0B82},
    {0x0BE8, 0x0000, 0x0000},
    {0x0BE9, 0x0000, 0x0000},
    {0x0BEA, 0x0000, 0x0000},
    {0x0BEB, 0x0000, 0x0000},
    {0x2018, 0x0000, 0x0000},
    {0x2019, 0x0000, 0x0000},
    {0x201C, 0x0000, 0x0000},
    {0x201C, 0x0000, 0x0000}, // two of the same??
    {0x0BEC, 0x0000, 0x0000},
    {0x0BED, 0x0000, 0x0000},
    {0x0BEE, 0x0000, 0x0000},
    {0x0BEF, 0x0000, 0x0000},
    {0x0B99, 0x0BC1, 0x0000},
    {0x0B9E, 0x0BC1, 0x0000},
    {0x0B99, 0x0BC2, 0x0000},
    {0x0B9E, 0x0BC2, 0x0000},
    {0x0BF0, 0x0000, 0x0000},
    {0x0BF1, 0x0000, 0x0000},
    {0x0BF2, 0x0000, 0x0000},
    {0x00A0, 0x0000, 0x0000},
    {0x0BBE, 0x0000, 0x0000},
    {0x0BBF, 0x0000, 0x0000},
    {0x0BC0, 0x0000, 0x0000},
    {0x0BC1, 0x0000, 0x0000},
    {0x0BC2, 0x0000, 0x0000},
    {0x0BC6, 0x0000, 0x0000},
    {0x0BC7, 0x0000, 0x0000},
    {0x0BC8, 0x0000, 0x0000},
    {0x00A9, 0x0000, 0x0000},
    {0x0BCC, 0x0000, 0x0000},
    {0x0B85, 0x0000, 0x0000},
    {0x0B86, 0x0000, 0x0000},
    {0x0B87, 0x0000, 0x0000},
    {0x0B88, 0x0000, 0x0000},
    {0x0B89, 0x0000, 0x0000},
    {0x0B8A, 0x0000, 0x0000},
    {0x0B8E, 0x0000, 0x0000},
    {0x0B8F, 0x0000, 0x0000},
    {0x0B90, 0x0000, 0x0000},
    {0x0B92, 0x0000, 0x0000},
    {0x0B93, 0x0000, 0x0000},
    {0x0B94, 0x0000, 0x0000},
    {0x0B83, 0x0000, 0x0000},
    {0x0B95, 0x0000, 0x0000},
    {0x0B99, 0x0000, 0x0000},
    {0x0B9A, 0x0000, 0x0000},
    {0x0B9E, 0x0000, 0x0000},
    {0x0B9F, 0x0000, 0x0000},
    {0x0BA3, 0x0000, 0x0000},
    {0x0BA4, 0x0000, 0x0000},
    {0x0BA8, 0x0000, 0x0000},
    {0x0BAA, 0x0000, 0x0000},
    {0x0BAE, 0x0000, 0x0000},
    {0x0BAF, 0x0000, 0x0000},
    {0x0BB0, 0x0000, 0x0000},
    {0x0BB2, 0x0000, 0x0000},
    {0x0BB5, 0x0000, 0x0000},
    {0x0BB4, 0x0000, 0x0000},
    {0x0BB3, 0x0000, 0x0000},
    {0x0BB1, 0x0000, 0x0000},
    {0x0BA9, 0x0000, 0x0000},
    {0x0B9F, 0x0BBF, 0x0000},
    {0x0B9F, 0x0BC0, 0x0000},
    {0x0B95, 0x0BC1, 0x0000},
    {0x0B9A, 0x0BC1, 0x0000},
    {0x0B9F, 0x0BC1, 0x0000},
    {0x0BA3, 0x0BC1, 0x0000},
    {0x0BA4, 0x0BC1, 0x0000},
    {0x0BA8, 0x0BC1, 0x0000},
    {0x0BAA, 0x0BC1, 0x0000},
    {0x0BAE, 0x0BC1, 0x0000},
    {0x0BAF, 0x0BC1, 0x0000},
    {0x0BB0, 0x0BC1, 0x0000},
    {0x0BB2, 0x0BC1, 0x0000},
    {0x0BB5, 0x0BC1, 0x0000},
    {0x0BB4, 0x0BC1, 0x0000},
    {0x0BB3, 0x0BC1, 0x0000},
    {0x0BB1, 0x0BC1, 0x0000},
    {0x0BA9, 0x0BC1, 0x0000},
    {0x0B95, 0x0BC2, 0x0000},
    {0x0B9A, 0x0BC2, 0x0000},
    {0x0B9F, 0x0BC2, 0x0000},
    {0x0BA3, 0x0BC2, 0x0000},
    {0x0BA4, 0x0BC2, 0x0000},
    {0x0BA8, 0x0BC2, 0x0000},
    {0x0BAA, 0x0BC2, 0x0000},
    {0x0BAE, 0x0BC2, 0x0000},
    {0x0BAF, 0x0BC2, 0x0000},
    {0x0BB0, 0x0BC2, 0x0000},
    {0x0BB2, 0x0BC2, 0x0000},
    {0x0BB5, 0x0BC2, 0x0000},
    {0x0BB4, 0x0BC2, 0x0000},
    {0x0BB3, 0x0BC2, 0x0000},
    {0x0BB1, 0x0BC2, 0x0000},
    {0x0BA9, 0x0BC2, 0x0000},
    {0x0B95, 0x0B82, 0x0000},
    {0x0B99, 0x0B82, 0x0000},
    {0x0B9A, 0x0B82, 0x0000},
    {0x0B9E, 0x0B82, 0x0000},
    {0x0B9F, 0x0B82, 0x0000},
    {0x0BA3, 0x0B82, 0x0000},
    {0x0BA1, 0x0B82, 0x0000},
    {0x0BA8, 0x0B82, 0x0000},
    {0x0BAA, 0x0B82, 0x0000},
    {0x0BAE, 0x0B82, 0x0000},
    {0x0BAF, 0x0B82, 0x0000},
    {0x0BB0, 0x0B82, 0x0000},
    {0x0BB2, 0x0B82, 0x0000},
    {0x0BB5, 0x0B82, 0x0000},
    {0x0BB4, 0x0B82, 0x0000},
    {0x0BB3, 0x0B82, 0x0000},
    {0x0BB1, 0x0B82, 0x0000},
    {0x0BA9, 0x0B82, 0x0000}
};

static int cmp(const ushort *s1, const ushort *s2, size_t len)
{
    int diff = 0;

    while (len-- && (diff = *s1++ - *s2++) == 0)
	;

    return diff;
}

static unsigned char qt_UnicodeToTSCII(ushort u1, ushort u2, ushort u3)
{
    ushort s[3];
    s[0] = u1;
    s[1] = u2;
    s[2] = u3;

    int a = 0;  // start pos
    int b = UnToTsLast; // end pos

    // do a binary search for the composed unicode in the list
    while (a <= b) {
	int w = (a + b) / 2;
	int j = cmp(UnToTs[w], s, 3);

	if (j == 0)
	    // found it
	    return UnToTs[w][3];

	if (j < 0)
	    a = w + 1;
	else
	    b = w - 1;
    }

    return 0;
}

static unsigned int qt_TSCIIToUnicode(uint code, uint *s)
{
    int len = 0;
    for (int i = 0; i < 3; i++) {
	uint u = TsToUn[code & 0x7f][i];
	s[i] = u;
	if (s[i]) len = i + 1;
    }

    return len;
}

#endif