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
|
// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/**
*******************************************************************************
* Copyright (C) 2006-2014, International Business Machines Corporation *
* and others. All Rights Reserved. *
*******************************************************************************
*/
#ifndef DICTBE_H
#define DICTBE_H
#include "unicode/utypes.h"
#include "unicode/uniset.h"
#include "unicode/utext.h"
#include "brkeng.h"
#include "uvectr32.h"
U_NAMESPACE_BEGIN
class DictionaryMatcher;
class Normalizer2;
/*******************************************************************
* DictionaryBreakEngine
*/
/**
* <p>DictionaryBreakEngine is a kind of LanguageBreakEngine that uses a
* dictionary to determine language-specific breaks.</p>
*
* <p>After it is constructed a DictionaryBreakEngine may be shared between
* threads without synchronization.</p>
*/
class DictionaryBreakEngine : public LanguageBreakEngine {
private:
/**
* The set of characters handled by this engine
* @internal
*/
UnicodeSet fSet;
public:
/**
* <p>Constructor </p>
*/
DictionaryBreakEngine();
/**
* <p>Virtual destructor.</p>
*/
virtual ~DictionaryBreakEngine();
/**
* <p>Indicate whether this engine handles a particular character for
* a particular kind of break.</p>
*
* @param c A character which begins a run that the engine might handle
* @return true if this engine handles the particular character and break
* type.
*/
virtual UBool handles(UChar32 c) const override;
/**
* <p>Find any breaks within a run in the supplied text.</p>
*
* @param text A UText representing the text. The iterator is left at
* the end of the run of characters which the engine is capable of handling
* that starts from the first character in the range.
* @param startPos The start of the run within the supplied text.
* @param endPos The end of the run within the supplied text.
* @param foundBreaks vector of int32_t to receive the break positions
* @param status Information on any errors encountered.
* @return The number of breaks found.
*/
virtual int32_t findBreaks( UText *text,
int32_t startPos,
int32_t endPos,
UVector32 &foundBreaks,
UErrorCode& status ) const override;
protected:
/**
* <p>Set the character set handled by this engine.</p>
*
* @param set A UnicodeSet of the set of characters handled by the engine
*/
virtual void setCharacters( const UnicodeSet &set );
/**
* <p>Divide up a range of known dictionary characters handled by this break engine.</p>
*
* @param text A UText representing the text
* @param rangeStart The start of the range of dictionary characters
* @param rangeEnd The end of the range of dictionary characters
* @param foundBreaks Output of C array of int32_t break positions, or 0
* @param status Information on any errors encountered.
* @return The number of breaks found
*/
virtual int32_t divideUpDictionaryRange( UText *text,
int32_t rangeStart,
int32_t rangeEnd,
UVector32 &foundBreaks,
UErrorCode& status) const = 0;
};
/*******************************************************************
* ThaiBreakEngine
*/
/**
* <p>ThaiBreakEngine is a kind of DictionaryBreakEngine that uses a
* dictionary and heuristics to determine Thai-specific breaks.</p>
*
* <p>After it is constructed a ThaiBreakEngine may be shared between
* threads without synchronization.</p>
*/
class ThaiBreakEngine : public DictionaryBreakEngine {
private:
/**
* The set of characters handled by this engine
* @internal
*/
UnicodeSet fThaiWordSet;
UnicodeSet fEndWordSet;
UnicodeSet fBeginWordSet;
UnicodeSet fSuffixSet;
UnicodeSet fMarkSet;
DictionaryMatcher *fDictionary;
public:
/**
* <p>Default constructor.</p>
*
* @param adoptDictionary A DictionaryMatcher to adopt. Deleted when the
* engine is deleted.
*/
ThaiBreakEngine(DictionaryMatcher *adoptDictionary, UErrorCode &status);
/**
* <p>Virtual destructor.</p>
*/
virtual ~ThaiBreakEngine();
protected:
/**
* <p>Divide up a range of known dictionary characters handled by this break engine.</p>
*
* @param text A UText representing the text
* @param rangeStart The start of the range of dictionary characters
* @param rangeEnd The end of the range of dictionary characters
* @param foundBreaks Output of C array of int32_t break positions, or 0
* @param status Information on any errors encountered.
* @return The number of breaks found
*/
virtual int32_t divideUpDictionaryRange( UText *text,
int32_t rangeStart,
int32_t rangeEnd,
UVector32 &foundBreaks,
UErrorCode& status) const override;
};
/*******************************************************************
* LaoBreakEngine
*/
/**
* <p>LaoBreakEngine is a kind of DictionaryBreakEngine that uses a
* dictionary and heuristics to determine Lao-specific breaks.</p>
*
* <p>After it is constructed a LaoBreakEngine may be shared between
* threads without synchronization.</p>
*/
class LaoBreakEngine : public DictionaryBreakEngine {
private:
/**
* The set of characters handled by this engine
* @internal
*/
UnicodeSet fLaoWordSet;
UnicodeSet fEndWordSet;
UnicodeSet fBeginWordSet;
UnicodeSet fMarkSet;
DictionaryMatcher *fDictionary;
public:
/**
* <p>Default constructor.</p>
*
* @param adoptDictionary A DictionaryMatcher to adopt. Deleted when the
* engine is deleted.
*/
LaoBreakEngine(DictionaryMatcher *adoptDictionary, UErrorCode &status);
/**
* <p>Virtual destructor.</p>
*/
virtual ~LaoBreakEngine();
protected:
/**
* <p>Divide up a range of known dictionary characters handled by this break engine.</p>
*
* @param text A UText representing the text
* @param rangeStart The start of the range of dictionary characters
* @param rangeEnd The end of the range of dictionary characters
* @param foundBreaks Output of C array of int32_t break positions, or 0
* @param status Information on any errors encountered.
* @return The number of breaks found
*/
virtual int32_t divideUpDictionaryRange( UText *text,
int32_t rangeStart,
int32_t rangeEnd,
UVector32 &foundBreaks,
UErrorCode& status) const override;
};
/*******************************************************************
* BurmeseBreakEngine
*/
/**
* <p>BurmeseBreakEngine is a kind of DictionaryBreakEngine that uses a
* DictionaryMatcher and heuristics to determine Burmese-specific breaks.</p>
*
* <p>After it is constructed a BurmeseBreakEngine may be shared between
* threads without synchronization.</p>
*/
class BurmeseBreakEngine : public DictionaryBreakEngine {
private:
/**
* The set of characters handled by this engine
* @internal
*/
UnicodeSet fBurmeseWordSet;
UnicodeSet fEndWordSet;
UnicodeSet fBeginWordSet;
UnicodeSet fMarkSet;
DictionaryMatcher *fDictionary;
public:
/**
* <p>Default constructor.</p>
*
* @param adoptDictionary A DictionaryMatcher to adopt. Deleted when the
* engine is deleted.
*/
BurmeseBreakEngine(DictionaryMatcher *adoptDictionary, UErrorCode &status);
/**
* <p>Virtual destructor.</p>
*/
virtual ~BurmeseBreakEngine();
protected:
/**
* <p>Divide up a range of known dictionary characters.</p>
*
* @param text A UText representing the text
* @param rangeStart The start of the range of dictionary characters
* @param rangeEnd The end of the range of dictionary characters
* @param foundBreaks Output of C array of int32_t break positions, or 0
* @param status Information on any errors encountered.
* @return The number of breaks found
*/
virtual int32_t divideUpDictionaryRange( UText *text,
int32_t rangeStart,
int32_t rangeEnd,
UVector32 &foundBreaks,
UErrorCode& status) const override;
};
/*******************************************************************
* KhmerBreakEngine
*/
/**
* <p>KhmerBreakEngine is a kind of DictionaryBreakEngine that uses a
* DictionaryMatcher and heuristics to determine Khmer-specific breaks.</p>
*
* <p>After it is constructed a KhmerBreakEngine may be shared between
* threads without synchronization.</p>
*/
class KhmerBreakEngine : public DictionaryBreakEngine {
private:
/**
* The set of characters handled by this engine
* @internal
*/
UnicodeSet fKhmerWordSet;
UnicodeSet fEndWordSet;
UnicodeSet fBeginWordSet;
UnicodeSet fMarkSet;
DictionaryMatcher *fDictionary;
public:
/**
* <p>Default constructor.</p>
*
* @param adoptDictionary A DictionaryMatcher to adopt. Deleted when the
* engine is deleted.
*/
KhmerBreakEngine(DictionaryMatcher *adoptDictionary, UErrorCode &status);
/**
* <p>Virtual destructor.</p>
*/
virtual ~KhmerBreakEngine();
protected:
/**
* <p>Divide up a range of known dictionary characters.</p>
*
* @param text A UText representing the text
* @param rangeStart The start of the range of dictionary characters
* @param rangeEnd The end of the range of dictionary characters
* @param foundBreaks Output of C array of int32_t break positions, or 0
* @param status Information on any errors encountered.
* @return The number of breaks found
*/
virtual int32_t divideUpDictionaryRange( UText *text,
int32_t rangeStart,
int32_t rangeEnd,
UVector32 &foundBreaks,
UErrorCode& status) const override;
};
#if !UCONFIG_NO_NORMALIZATION
/*******************************************************************
* CjkBreakEngine
*/
//indicates language/script that the CjkBreakEngine will handle
enum LanguageType {
kKorean,
kChineseJapanese
};
/**
* <p>CjkBreakEngine is a kind of DictionaryBreakEngine that uses a
* dictionary with costs associated with each word and
* Viterbi decoding to determine CJK-specific breaks.</p>
*/
class CjkBreakEngine : public DictionaryBreakEngine {
protected:
/**
* The set of characters handled by this engine
* @internal
*/
UnicodeSet fHangulWordSet;
UnicodeSet fHanWordSet;
UnicodeSet fKatakanaWordSet;
UnicodeSet fHiraganaWordSet;
DictionaryMatcher *fDictionary;
const Normalizer2 *nfkcNorm2;
public:
/**
* <p>Default constructor.</p>
*
* @param adoptDictionary A DictionaryMatcher to adopt. Deleted when the
* engine is deleted. The DictionaryMatcher must contain costs for each word
* in order for the dictionary to work properly.
*/
CjkBreakEngine(DictionaryMatcher *adoptDictionary, LanguageType type, UErrorCode &status);
/**
* <p>Virtual destructor.</p>
*/
virtual ~CjkBreakEngine();
protected:
/**
* <p>Divide up a range of known dictionary characters handled by this break engine.</p>
*
* @param text A UText representing the text
* @param rangeStart The start of the range of dictionary characters
* @param rangeEnd The end of the range of dictionary characters
* @param foundBreaks Output of C array of int32_t break positions, or 0
* @param status Information on any errors encountered.
* @return The number of breaks found
*/
virtual int32_t divideUpDictionaryRange( UText *text,
int32_t rangeStart,
int32_t rangeEnd,
UVector32 &foundBreaks,
UErrorCode& status) const override;
};
#endif
U_NAMESPACE_END
/* DICTBE_H */
#endif
|