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/*
* 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 THIRD_PARTY_BLINK_RENDERER_CORE_HTML_PARSER_HTML_META_CHARSET_PARSER_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_PARSER_HTML_META_CHARSET_PARSER_H_
#include <memory>
#include "base/macros.h"
#include "base/memory/ptr_util.h"
#include "third_party/blink/renderer/core/html/parser/html_token.h"
#include "third_party/blink/renderer/platform/text/segmented_string.h"
#include "third_party/blink/renderer/platform/wtf/text/text_codec.h"
#include "third_party/blink/renderer/platform/wtf/text/text_encoding.h"
namespace blink {
class HTMLTokenizer;
class HTMLMetaCharsetParser {
USING_FAST_MALLOC(HTMLMetaCharsetParser);
public:
static std::unique_ptr<HTMLMetaCharsetParser> Create() {
return base::WrapUnique(new HTMLMetaCharsetParser());
}
~HTMLMetaCharsetParser();
// Returns true if done checking, regardless whether an encoding is found.
bool CheckForMetaCharset(const char*, wtf_size_t);
const WTF::TextEncoding& Encoding() { return encoding_; }
private:
HTMLMetaCharsetParser();
bool ProcessMeta();
std::unique_ptr<HTMLTokenizer> tokenizer_;
std::unique_ptr<TextCodec> assumed_codec_;
SegmentedString input_;
HTMLToken token_;
bool in_head_section_;
bool done_checking_;
WTF::TextEncoding encoding_;
DISALLOW_COPY_AND_ASSIGN(HTMLMetaCharsetParser);
};
} // namespace blink
#endif