| // 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 THIRD_PARTY_BLINK_RENDERER_CORE_CSS_PARSER_CSS_TOKENIZER_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_PARSER_CSS_TOKENIZER_H_ |
| |
| #include "third_party/blink/renderer/core/core_export.h" |
| #include "third_party/blink/renderer/core/css/parser/css_parser_token.h" |
| #include "third_party/blink/renderer/core/css/parser/css_tokenizer_input_stream.h" |
| #include "third_party/blink/renderer/core/html/parser/input_stream_preprocessor.h" |
| #include "third_party/blink/renderer/platform/wtf/allocator/allocator.h" |
| #include "third_party/blink/renderer/platform/wtf/text/string_view.h" |
| #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h" |
| |
| #include <climits> |
| |
| namespace blink { |
| |
| class CSSTokenizerInputStream; |
| |
| class CORE_EXPORT CSSTokenizer { |
| DISALLOW_NEW(); |
| |
| public: |
| CSSTokenizer(const String&, wtf_size_t offset = 0); |
| CSSTokenizer(const CSSTokenizer&) = delete; |
| CSSTokenizer& operator=(const CSSTokenizer&) = delete; |
| |
| Vector<CSSParserToken, 32> TokenizeToEOF(); |
| wtf_size_t TokenCount(); |
| |
| wtf_size_t Offset() const { return input_.Offset(); } |
| wtf_size_t PreviousOffset() const { return prev_offset_; } |
| StringView StringRangeAt(wtf_size_t start, wtf_size_t length) const; |
| wtf_size_t BlockStackDepth() const; |
| |
| private: |
| CSSParserToken TokenizeSingle(); |
| CSSParserToken TokenizeSingleWithComments(); |
| |
| 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 block_type, |
| CSSParserTokenType, |
| StringView); |
| CSSParserToken BlockEnd(CSSParserTokenType, CSSParserTokenType start_type); |
| |
| 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 kCodePoints[]; |
| |
| CSSTokenizerInputStream input_; |
| Vector<CSSParserTokenType, 8> block_stack_; |
| |
| // We only allocate strings when escapes are used. |
| Vector<String> string_pool_; |
| |
| friend class CSSParserTokenStream; |
| |
| wtf_size_t prev_offset_ = 0; |
| wtf_size_t token_count_ = 0; |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_CORE_CSS_PARSER_CSS_TOKENIZER_H_ |