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
|
/*
* Copyright (C) 2010 Google 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 HTMLMetaCharsetParser_h
#define HTMLMetaCharsetParser_h
#include "HTMLToken.h"
#include "SegmentedString.h"
#include "TextEncoding.h"
#include <wtf/Noncopyable.h>
namespace WebCore {
class HTMLTokenizer;
class TextCodec;
class HTMLMetaCharsetParser {
WTF_MAKE_NONCOPYABLE(HTMLMetaCharsetParser);
public:
static PassOwnPtr<HTMLMetaCharsetParser> create() { return adoptPtr(new HTMLMetaCharsetParser()); }
~HTMLMetaCharsetParser();
// Returns true if done checking, regardless whether an encoding is found.
bool checkForMetaCharset(const char*, size_t);
const TextEncoding& encoding() { return m_encoding; }
private:
HTMLMetaCharsetParser();
bool processMeta();
String extractCharset(const String&);
enum Mode {
None,
Charset,
Pragma,
};
OwnPtr<HTMLTokenizer> m_tokenizer;
OwnPtr<TextCodec> m_assumedCodec;
SegmentedString m_input;
HTMLToken m_token;
bool m_inHeadSection;
bool m_doneChecking;
TextEncoding m_encoding;
};
}
#endif
|
