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
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <i18nutil/widthfolding.hxx>
#include "widthfolding_data.h"
using namespace com::sun::star::uno;
namespace i18nutil {
sal_Unicode widthfolding::decompose_ja_voiced_sound_marksChar2Char (sal_Unicode inChar)
{
if (0x30a0 <= inChar && inChar <= 0x30ff) {
sal_Int16 i = inChar - 0x3040;
if (decomposition_table[i].decomposited_character_1)
return 0xFFFF;
}
return inChar;
}
/**
* Decompose Japanese specific voiced and semi-voiced sound marks.
*/
OUString widthfolding::decompose_ja_voiced_sound_marks (const OUString& inStr, sal_Int32 startPos, sal_Int32 nCount, Sequence< sal_Int32 >& offset, bool useOffset )
{
// Create a string buffer which can hold nCount * 2 + 1 characters.
// Its size may become double of nCount.
// The reference count is 1 now.
rtl_uString * newStr = rtl_uString_alloc(nCount * 2);
sal_Int32 *p = nullptr;
sal_Int32 position = 0;
if (useOffset) {
// Allocate double of nCount length to offset argument.
offset.realloc( nCount * 2 );
p = offset.getArray();
position = startPos;
}
// Prepare pointers of unicode character arrays.
const sal_Unicode* src = inStr.getStr() + startPos;
sal_Unicode* dst = newStr->buffer;
// Decomposition: GA --> KA + voice-mark
while (nCount -- > 0) {
sal_Unicode c = *src++;
// see http://charts.unicode.org/Web/U3040.html Hiragana (U+3040..U+309F)
// see http://charts.unicode.org/Web/U30A0.html Katakana (U+30A0..U+30FF)
// Hiragana is not applied to decomposition.
// Only Katakana is applied to decomposition
if (0x30a0 <= c && c <= 0x30ff) {
int i = int(c - 0x3040);
sal_Unicode first = decomposition_table[i].decomposited_character_1;
if (first != 0x0000) {
*dst ++ = first;
*dst ++ = decomposition_table[i].decomposited_character_2; // second
if (useOffset) {
*p ++ = position;
*p ++ = position ++;
}
continue;
}
}
*dst ++ = c;
if (useOffset)
*p ++ = position ++;
}
*dst = u'\0';
newStr->length = sal_Int32(dst - newStr->buffer);
if (useOffset)
offset.realloc(newStr->length);
return OUString(newStr, SAL_NO_ACQUIRE); // take ownership
}
oneToOneMapping& widthfolding::getfull2halfTable()
{
static oneToOneMappingWithFlag table(full2half, sizeof(full2half), FULL2HALF_NORMAL);
table.makeIndex();
return table;
}
/**
* Compose Japanese specific voiced and semi-voiced sound marks.
*/
OUString widthfolding::compose_ja_voiced_sound_marks (const OUString& inStr, sal_Int32 startPos, sal_Int32 nCount, Sequence< sal_Int32 >& offset, bool useOffset, sal_Int32 nFlags )
{
// Create a string buffer which can hold nCount + 1 characters.
// Its size may become equal to nCount or smaller.
// The reference count is 1 now.
rtl_uString * newStr = rtl_uString_alloc(nCount);
// Prepare pointers of unicode character arrays.
const sal_Unicode* src = inStr.getStr() + startPos;
sal_Unicode* dst = newStr->buffer;
// This conversion algorithm requires at least one character.
if (nCount > 0) {
// .. .. KA VOICE .. ..
// ^ ^
// previousChar currentChar
// ^
// position
//
// will be converted to
// .. .. GA .. ..
sal_Int32 *p = nullptr;
sal_Int32 position = 0;
if (useOffset) {
// Allocate nCount length to offset argument.
offset.realloc( nCount );
p = offset.getArray();
position = startPos;
}
//
sal_Unicode previousChar = *src ++;
sal_Unicode currentChar;
// Composition: KA + voice-mark --> GA
while (-- nCount > 0) {
currentChar = *src ++;
// see http://charts.unicode.org/Web/U3040.html Hiragana (U+3040..U+309F)
// see http://charts.unicode.org/Web/U30A0.html Katakana (U+30A0..U+30FF)
// 0x3099 COMBINING KATAKANA-HIRAGANA VOICED SOUND MARK
// 0x309a COMBINING KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK
// 0x309b KATAKANA-HIRAGANA VOICED SOUND MARK
// 0x309c KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK
int j = currentChar - 0x3099; // 0x3099, 0x309a, 0x309b, 0x309c ?
if (2 <= j && j <= 3) // 0x309b or 0x309c
j -= 2;
if (0 <= j && j <= 1) {
// 0 addresses a code point regarding 0x3099 or 0x309b (voiced sound mark),
// 1 is 0x309a or 0x309c (semi-voiced sound mark)
int i = int(previousChar - 0x3040); // i acts as an index of array
bool bCompose = false;
if (0 <= i && i <= (0x30ff - 0x3040) && composition_table[i][j])
bCompose = true;
// not to use combined KATAKANA LETTER VU
if ( previousChar == 0x30a6 && (nFlags & WIDTHFOLDNIG_DONT_USE_COMBINED_VU) )
bCompose = false;
if( bCompose ){
if (useOffset) {
position ++;
*p ++ = position ++;
}
*dst ++ = composition_table[i][j];
previousChar = *src ++;
nCount --;
continue;
}
}
if (useOffset)
*p ++ = position ++;
*dst ++ = previousChar;
previousChar = currentChar;
}
if (nCount == 0) {
if (useOffset)
*p = position;
*dst ++ = previousChar;
}
*dst = u'\0';
newStr->length = sal_Int32(dst - newStr->buffer);
}
if (useOffset)
offset.realloc(newStr->length);
return OUString(newStr, SAL_NO_ACQUIRE); // take ownership
}
oneToOneMapping& widthfolding::gethalf2fullTable()
{
static oneToOneMappingWithFlag table(half2full, sizeof(half2full), HALF2FULL_NORMAL);
table.makeIndex();
return table;
}
sal_Unicode widthfolding::getCompositionChar(sal_Unicode c1, sal_Unicode c2)
{
return composition_table[c1 - 0x3040][c2 - 0x3099];
}
oneToOneMapping& widthfolding::getfull2halfTableForASC()
{
static oneToOneMappingWithFlag table(full2half, sizeof(full2half), FULL2HALF_ASC_FUNCTION);
table.makeIndex();
return table;
}
oneToOneMapping& widthfolding::gethalf2fullTableForJIS()
{
static oneToOneMappingWithFlag table(half2full, sizeof(half2full), HALF2FULL_JIS_FUNCTION);
table.makeIndex();
return table;
}
oneToOneMapping& widthfolding::getfullKana2halfKanaTable()
{
static oneToOneMappingWithFlag table(full2half, sizeof(full2half), FULL2HALF_KATAKANA_ONLY);
table.makeIndex();
return table;
}
oneToOneMapping& widthfolding::gethalfKana2fullKanaTable()
{
static oneToOneMappingWithFlag table(half2full, sizeof(half2full), HALF2FULL_KATAKANA_ONLY);
table.makeIndex();
return table;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
