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
|
// **********************************************************************
//
// Copyright (c) 2003-2016 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#include <IceUtil/Unicode.h>
#include <IceUtil/ConvertUTF.h>
using namespace std;
using namespace IceUtil;
using namespace IceUtilInternal;
namespace
{
//
// Helper class, base never defined
// Usage: WstringHelper<sizeof(wchar_t)>::toUTF8 and fromUTF8.
//
template<size_t wcharSize>
struct WstringHelper
{
static ConversionResult toUTF8(
const wchar_t*& sourceStart, const wchar_t* sourceEnd,
Byte*& targetStart, Byte* targetEnd, ConversionFlags flags);
static ConversionResult fromUTF8(
const Byte*& sourceStart, const Byte* sourceEnd,
wchar_t*& targetStart, wchar_t* targetEnd, ConversionFlags flags);
};
template<>
struct WstringHelper<2>
{
static ConversionResult toUTF8(
const wchar_t*& sourceStart, const wchar_t* sourceEnd,
Byte*& targetStart, Byte* targetEnd, ConversionFlags flags)
{
return ConvertUTF16toUTF8(
reinterpret_cast<const UTF16**>(&sourceStart),
reinterpret_cast<const UTF16*>(sourceEnd),
&targetStart, targetEnd, flags);
}
static ConversionResult fromUTF8(
const Byte*& sourceStart, const Byte* sourceEnd,
wchar_t*& targetStart, wchar_t* targetEnd, ConversionFlags flags)
{
return ConvertUTF8toUTF16(
&sourceStart, sourceEnd,
reinterpret_cast<UTF16**>(&targetStart),
reinterpret_cast<UTF16*>(targetEnd), flags);
}
};
template<>
struct WstringHelper<4>
{
static ConversionResult toUTF8(
const wchar_t*& sourceStart, const wchar_t* sourceEnd,
Byte*& targetStart, Byte* targetEnd, ConversionFlags flags)
{
return ConvertUTF32toUTF8(
reinterpret_cast<const UTF32**>(&sourceStart),
reinterpret_cast<const UTF32*>(sourceEnd),
&targetStart, targetEnd, flags);
}
static ConversionResult fromUTF8(
const Byte*& sourceStart, const Byte* sourceEnd,
wchar_t*& targetStart, wchar_t* targetEnd, ConversionFlags flags)
{
return ConvertUTF8toUTF32(
&sourceStart, sourceEnd,
reinterpret_cast<UTF32**>(&targetStart),
reinterpret_cast<UTF32*>(targetEnd), flags);
}
};
}
//
// convertXXX functions
//
ConversionResult
IceUtilInternal::convertUTFWstringToUTF8(
const wchar_t*& sourceStart, const wchar_t* sourceEnd,
Byte*& targetStart, Byte* targetEnd, ConversionFlags flags)
{
return WstringHelper<sizeof(wchar_t)>::toUTF8(
sourceStart, sourceEnd, targetStart, targetEnd, flags);
}
ConversionResult
IceUtilInternal::convertUTF8ToUTFWstring(
const Byte*& sourceStart, const Byte* sourceEnd,
wchar_t*& targetStart, wchar_t* targetEnd, ConversionFlags flags)
{
return WstringHelper<sizeof(wchar_t)>::fromUTF8(
sourceStart, sourceEnd, targetStart, targetEnd, flags);
}
ConversionResult
IceUtilInternal::convertUTF8ToUTFWstring(const Byte*& sourceStart, const Byte* sourceEnd,
std::wstring& target, ConversionFlags flags)
{
//
// Could be reimplemented without this temporary wchar_t buffer
//
size_t size = static_cast<size_t>(sourceEnd - sourceStart);
wchar_t* outBuf = new wchar_t[size];
wchar_t* targetStart = outBuf;
wchar_t* targetEnd = targetStart + size;
ConversionResult result =
convertUTF8ToUTFWstring(sourceStart, sourceEnd, targetStart,
targetEnd, flags);
if(result == conversionOK)
{
std::wstring s(outBuf, static_cast<size_t>(targetStart - outBuf));
s.swap(target);
}
delete[] outBuf;
return result;
}
ConversionResult
IceUtilInternal::convertUTF8ToUTF16(const vector<unsigned char>& source, vector<unsigned short>& target, ConversionFlags flags)
{
target.resize(source.size());
const unsigned char* sourceStart = &source[0];
const unsigned char* sourceEnd = &source[0] + source.size();
unsigned short* targetStart = &target[0];
unsigned short* targetEnd = &target[0] + target.size();
ConversionResult result = ConvertUTF8toUTF16(&sourceStart, sourceEnd, &targetStart, targetEnd, flags);
if(result == conversionOK)
{
target.resize(targetStart - &target[0]);
}
return result;
}
ConversionResult
IceUtilInternal::convertUTF8ToUTF32(const vector<unsigned char>& source, vector<unsigned int>& target, ConversionFlags flags)
{
target.resize(source.size());
const unsigned char* sourceStart = &source[0];
const unsigned char* sourceEnd = &source[0] + source.size();
unsigned int* targetStart = &target[0];
unsigned int* targetEnd = &target[0] + target.size();
ConversionResult result = ConvertUTF8toUTF32(&sourceStart, sourceEnd, &targetStart, targetEnd, flags);
if(result == conversionOK)
{
target.resize(targetStart - &target[0]);
}
return result;
}
ConversionResult
IceUtilInternal::convertUTF32ToUTF8(const vector<unsigned int>& source, vector<unsigned char>& target, ConversionFlags flags)
{
target.resize(source.size() * 4);
const unsigned int* sourceStart = &source[0];
const unsigned int* sourceEnd = &source[0] + source.size();
unsigned char* targetStart = &target[0];
unsigned char* targetEnd = &target[0] + target.size();
ConversionResult result = ConvertUTF32toUTF8(&sourceStart, sourceEnd, &targetStart, targetEnd, flags);
if(result == conversionOK)
{
target.resize(targetStart - &target[0]);
}
return result;
}
|
