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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CSSTokenizer_h
#define CSSTokenizer_h
#include "core/CoreExport.h"
#include "core/css/parser/CSSParserToken.h"
#include "core/css/parser/CSSTokenizerInputStream.h"
#include "core/html/parser/InputStreamPreprocessor.h"
#include "wtf/Allocator.h"
#include "wtf/text/StringView.h"
#include "wtf/text/WTFString.h"
#include <climits>
namespace blink {
class CSSTokenizerInputStream;
class CSSParserObserverWrapper;
class CSSParserTokenRange;
class CORE_EXPORT CSSTokenizer {
WTF_MAKE_NONCOPYABLE(CSSTokenizer);
DISALLOW_NEW();
public:
CSSTokenizer(const String&);
CSSTokenizer(const String&, CSSParserObserverWrapper&); // For the inspector
CSSParserTokenRange tokenRange();
unsigned tokenCount();
Vector<String> takeEscapedStrings() { return std::move(m_stringPool); }
private:
CSSParserToken nextToken();
UChar consume();
void reconsume(UChar);
CSSParserToken consumeNumericToken();
CSSParserToken consumeIdentLikeToken();
CSSParserToken consumeNumber();
CSSParserToken consumeStringTokenUntil(UChar);
CSSParserToken consumeUnicodeRange();
CSSParserToken consumeUrlToken();
void consumeBadUrlRemnants();
void consumeSingleWhitespaceIfNext();
void consumeUntilCommentEndFound();
bool consumeIfNext(UChar);
StringView consumeName();
UChar32 consumeEscape();
bool nextTwoCharsAreValidEscape();
bool nextCharsAreNumber(UChar);
bool nextCharsAreNumber();
bool nextCharsAreIdentifier(UChar);
bool nextCharsAreIdentifier();
CSSParserToken blockStart(CSSParserTokenType);
CSSParserToken blockStart(CSSParserTokenType blockType,
CSSParserTokenType,
StringView);
CSSParserToken blockEnd(CSSParserTokenType, CSSParserTokenType startType);
CSSParserToken whiteSpace(UChar);
CSSParserToken leftParenthesis(UChar);
CSSParserToken rightParenthesis(UChar);
CSSParserToken leftBracket(UChar);
CSSParserToken rightBracket(UChar);
CSSParserToken leftBrace(UChar);
CSSParserToken rightBrace(UChar);
CSSParserToken plusOrFullStop(UChar);
CSSParserToken comma(UChar);
CSSParserToken hyphenMinus(UChar);
CSSParserToken asterisk(UChar);
CSSParserToken lessThan(UChar);
CSSParserToken solidus(UChar);
CSSParserToken colon(UChar);
CSSParserToken semiColon(UChar);
CSSParserToken hash(UChar);
CSSParserToken circumflexAccent(UChar);
CSSParserToken dollarSign(UChar);
CSSParserToken verticalLine(UChar);
CSSParserToken tilde(UChar);
CSSParserToken commercialAt(UChar);
CSSParserToken reverseSolidus(UChar);
CSSParserToken asciiDigit(UChar);
CSSParserToken letterU(UChar);
CSSParserToken nameStart(UChar);
CSSParserToken stringStart(UChar);
CSSParserToken endOfFile(UChar);
StringView registerString(const String&);
using CodePoint = CSSParserToken (CSSTokenizer::*)(UChar);
static const CodePoint codePoints[];
CSSTokenizerInputStream m_input;
Vector<CSSParserTokenType, 8> m_blockStack;
Vector<CSSParserToken, 32> m_tokens;
// We only allocate strings when escapes are used.
Vector<String> m_stringPool;
};
} // namespace blink
#endif // CSSTokenizer_h
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