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
|
/*
* Copyright (C) 2004, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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.
*/
#ifndef TextEncoding_h
#define TextEncoding_h
#include "TextCodec.h"
#include <wtf/Forward.h>
namespace WebCore {
class TextEncoding {
public:
TextEncoding() : m_name(0) { }
WEBCORE_EXPORT TextEncoding(const char* name);
WEBCORE_EXPORT TextEncoding(const String& name);
bool isValid() const { return m_name; }
const char* name() const { return m_name; }
const char* domName() const; // name exposed via DOM
bool usesVisualOrdering() const;
bool isJapanese() const;
PassRefPtr<StringImpl> displayString(PassRefPtr<StringImpl> str) const
{
if (m_backslashAsCurrencySymbol == '\\' || !str)
return str;
return str->replace('\\', m_backslashAsCurrencySymbol);
}
template <typename CharacterType>
void displayBuffer(CharacterType* characters, unsigned len) const
{
if (m_backslashAsCurrencySymbol == '\\')
return;
for (unsigned i = 0; i < len; ++i) {
if (characters[i] == '\\')
characters[i] = m_backslashAsCurrencySymbol;
}
}
const TextEncoding& closestByteBasedEquivalent() const;
const TextEncoding& encodingForFormSubmission() const;
String decode(const char* str, size_t length) const
{
bool ignored;
return decode(str, length, false, ignored);
}
WEBCORE_EXPORT String decode(const char*, size_t length, bool stopOnError, bool& sawError) const;
CString encode(StringView, UnencodableHandling) const;
UChar backslashAsCurrencySymbol() const;
bool isByteBasedEncoding() const { return !isNonByteBasedEncoding(); }
private:
bool isNonByteBasedEncoding() const;
bool isUTF7Encoding() const;
const char* m_name;
UChar m_backslashAsCurrencySymbol;
};
inline bool operator==(const TextEncoding& a, const TextEncoding& b) { return a.name() == b.name(); }
inline bool operator!=(const TextEncoding& a, const TextEncoding& b) { return a.name() != b.name(); }
const TextEncoding& ASCIIEncoding();
const TextEncoding& Latin1Encoding();
const TextEncoding& UTF16BigEndianEncoding();
const TextEncoding& UTF16LittleEndianEncoding();
const TextEncoding& UTF32BigEndianEncoding();
const TextEncoding& UTF32LittleEndianEncoding();
WEBCORE_EXPORT const TextEncoding& UTF8Encoding();
WEBCORE_EXPORT const TextEncoding& WindowsLatin1Encoding();
} // namespace WebCore
#endif // TextEncoding_h
|
