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
|
/* -*- 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/casefolding.hxx"
#include "casefolding_data.h"
#include "i18nutil/widthfolding.hxx"
using namespace com::sun::star::lang;
using namespace com::sun::star::uno;
namespace com { namespace sun { namespace star { namespace i18n {
static Mapping mapping_03a3[] = {{0, 1, {0x03c2, 0, 0}},{0, 1, {0x03c3, 0, 0}}};
static Mapping mapping_0307[] = {{0, 0, {0, 0, 0}},{0, 1, {0x0307, 0, 0}}};
static Mapping mapping_004a[] = {{0, 2, {0x006a, 0x0307, 0}},{0, 1, {0x006a, 0, 0}}};
static Mapping mapping_012e[] = {{0, 2, {0x012f, 0x0307, 0}},{0, 1, {0x012f, 0, 0}}};
static Mapping mapping_00cc[] = {{0, 3, {0x0069, 0x0307, 0x0300}},{0, 1, {0x00ec, 0, 0}}};
static Mapping mapping_00cd[] = {{0, 3, {0x0069, 0x0307, 0x0301}},{0, 1, {0x00ed, 0, 0}}};
static Mapping mapping_0128[] = {{0, 3, {0x0069, 0x0307, 0x0303}},{0, 1, {0x0129, 0, 0}}};
static Mapping mapping_0049[] = {{0, 2, {0x0069, 0x0307, 0}},{0, 1, {0x0131, 0, 0}},{0, 1, {0x0069, 0, 0}}};
static Mapping mapping_0069[] = {{0, 1, {0x0130, 0, 0}},{0, 1, {0x0049, 0, 0}}};
static Mapping mapping_0130[] = {{0, 1, {0x0069, 0, 0}},{0, 1, {0x0130, 0, 0}}};
#define langIs(lang) (aLocale.Language == lang)
// only check simple case, there is more complicated case need to be checked.
#define type_i(ch) ((ch) == 0x0069 || (ch) == 0x006a)
#define cased_letter(ch) (CaseMappingIndex[(ch)>>8] >= 0 && (CaseMappingValue[(CaseMappingIndex[(ch)>>8] << 8) + ((ch)&0xff)].type & CasedLetter))
// for Lithuanian, condition to make explicit dot above when lowercasing capital I's and J's
// whenever there are more accents above.
#define accent_above(ch) (((ch) >= 0x0300 && (ch) <= 0x0314) || ((ch) >= 0x033D && (ch) <= 0x0344) || (ch) == 0x0346 || ((ch) >= 0x034A && (ch) <= 0x034C))
Mapping& casefolding::getConditionalValue(const sal_Unicode* str, sal_Int32 pos, sal_Int32 len, Locale& aLocale, sal_uInt8 nMappingType) throw (RuntimeException)
{
switch(str[pos]) {
case 0x03a3:
// final_sigma (not followed by cased and preceded by cased character)
// DOES NOT check ignorable sequence yet (more complicated implementation).
return !(pos < len && cased_letter(str[pos+1])) && (pos > 0 && cased_letter(str[pos-1])) ?
mapping_03a3[0] : mapping_03a3[1];
case 0x0307:
return (((nMappingType == MappingTypeLowerToUpper && langIs("lt")) ||
(nMappingType == MappingTypeUpperToLower && (langIs("tr") || langIs("az")))) &&
(pos > 0 && type_i(str[pos-1]))) ? // after_i
mapping_0307[0] : mapping_0307[1];
case 0x0130:
return (langIs("tr") || langIs("az")) ? mapping_0130[0] : mapping_0130[1];
case 0x0069:
return (langIs("tr") || langIs("az")) ? mapping_0069[0] : mapping_0069[1];
case 0x0049: return langIs("lt") && pos > len && accent_above(str[pos+1]) ? mapping_0049[0] :
(langIs("tr") || langIs("az")) ? mapping_0049[1] : mapping_0049[2];
case 0x004a: return langIs("lt") && pos > len && accent_above(str[pos+1]) ? mapping_004a[0] : mapping_004a[1];
case 0x012e: return langIs("lt") && pos > len && accent_above(str[pos+1]) ? mapping_012e[0] : mapping_012e[1];
case 0x00cc: return langIs("lt") ? mapping_00cc[0] : mapping_00cc[1];
case 0x00cd: return langIs("lt") ? mapping_00cd[0] : mapping_00cd[1];
case 0x0128: return langIs("lt") ? mapping_0128[0] : mapping_0128[1];
}
// Should not come here
throw RuntimeException();
}
Mapping& casefolding::getValue(const sal_Unicode* str, sal_Int32 pos, sal_Int32 len, Locale& aLocale, sal_uInt8 nMappingType) throw (RuntimeException)
{
static Mapping dummy = { 0, 1, { 0, 0, 0 } };
sal_Int16 address = CaseMappingIndex[str[pos] >> 8] << 8;
dummy.map[0] = str[pos];
if (address >= 0 && (CaseMappingValue[address += (str[pos] & 0xFF)].type & nMappingType)) {
sal_uInt8 type = CaseMappingValue[address].type;
if (type & ValueTypeNotValue) {
if (CaseMappingValue[address].value == 0)
return getConditionalValue(str, pos, len, aLocale, nMappingType);
else {
for (int map = CaseMappingValue[address].value;
map < CaseMappingValue[address].value + MaxCaseMappingExtras; map++) {
if (CaseMappingExtra[map].type & nMappingType) {
if (CaseMappingExtra[map].type & ValueTypeNotValue)
return getConditionalValue(str, pos, len, aLocale, nMappingType);
else
return CaseMappingExtra[map];
}
}
// Should not come here
throw RuntimeException();
}
} else
dummy.map[0] = CaseMappingValue[address].value;
}
return dummy;
}
inline sal_Bool SAL_CALL
is_ja_voice_sound_mark(sal_Unicode& current, sal_Unicode next)
{
sal_Unicode c = 0;
if ((next == 0x3099 || next == 0x309a) && ( (c = widthfolding::getCompositionChar(current, next)) != 0 ))
current = c;
return c != 0;
}
sal_Unicode casefolding::getNextChar(const sal_Unicode *str, sal_Int32& idx, sal_Int32 len, MappingElement& e, Locale& aLocale, sal_uInt8 nMappingType, TransliterationModules moduleLoaded) throw (RuntimeException)
{
if( idx >= len )
{
e = MappingElement();
return 0;
}
sal_Unicode c;
if (moduleLoaded & TransliterationModules_IGNORE_CASE) {
if( e.current >= e.element.nmap ) {
e.element = getValue(str, idx++, len, aLocale, nMappingType);
e.current = 0;
}
c = e.element.map[e.current++];
} else {
c = *(str + idx++);
}
if (moduleLoaded & TransliterationModules_IGNORE_KANA) {
if ((0x3040 <= c && c <= 0x3094) || (0x309d <= c && c <= 0x309f))
c += 0x60;
}
// composition: KA + voice-mark --> GA. see halfwidthToFullwidth.cxx for detail
if (moduleLoaded & TransliterationModules_IGNORE_WIDTH) {
static oneToOneMapping& half2fullTable = widthfolding::gethalf2fullTable();
c = half2fullTable[c];
if (0x3040 <= c && c <= 0x30ff && idx < len &&
is_ja_voice_sound_mark(c, half2fullTable[*(str + idx)]))
idx++;
}
return c;
}
} } } }
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
