mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2026-06-19 00:01:59 +00:00
29784ea397
Delete the old C++ tree-construction implementation and helper classes that became unused once the Rust parser is unconditional. Remove the C++ stack of open elements, active formatting elements, speculative mock element, and tree-builder-only token storage. Keep the C++ parser entry points that still own LibWeb DOM integration, encoding detection, tokenizer bridging, incremental parsing, and the speculative parser support used by resource discovery.
169 lines
8.2 KiB
C++
169 lines
8.2 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <andreas@ladybird.org>
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* Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/String.h>
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#include <AK/StringView.h>
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#include <AK/Types.h>
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#include <LibWeb/Export.h>
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#include <LibWeb/HTML/Parser/HTMLToken.h>
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struct RustFfiTokenizerHandle;
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namespace Web::HTML {
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class HTMLParser;
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#define ENUMERATE_TOKENIZER_STATES \
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__ENUMERATE_TOKENIZER_STATE(Data) \
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__ENUMERATE_TOKENIZER_STATE(RCDATA) \
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__ENUMERATE_TOKENIZER_STATE(RAWTEXT) \
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__ENUMERATE_TOKENIZER_STATE(ScriptData) \
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__ENUMERATE_TOKENIZER_STATE(PLAINTEXT) \
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__ENUMERATE_TOKENIZER_STATE(TagOpen) \
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__ENUMERATE_TOKENIZER_STATE(EndTagOpen) \
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__ENUMERATE_TOKENIZER_STATE(TagName) \
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__ENUMERATE_TOKENIZER_STATE(RCDATALessThanSign) \
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__ENUMERATE_TOKENIZER_STATE(RCDATAEndTagOpen) \
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__ENUMERATE_TOKENIZER_STATE(RCDATAEndTagName) \
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__ENUMERATE_TOKENIZER_STATE(RAWTEXTLessThanSign) \
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__ENUMERATE_TOKENIZER_STATE(RAWTEXTEndTagOpen) \
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__ENUMERATE_TOKENIZER_STATE(RAWTEXTEndTagName) \
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__ENUMERATE_TOKENIZER_STATE(ScriptDataLessThanSign) \
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__ENUMERATE_TOKENIZER_STATE(ScriptDataEndTagOpen) \
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__ENUMERATE_TOKENIZER_STATE(ScriptDataEndTagName) \
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__ENUMERATE_TOKENIZER_STATE(ScriptDataEscapeStart) \
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__ENUMERATE_TOKENIZER_STATE(ScriptDataEscapeStartDash) \
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__ENUMERATE_TOKENIZER_STATE(ScriptDataEscaped) \
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__ENUMERATE_TOKENIZER_STATE(ScriptDataEscapedDash) \
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__ENUMERATE_TOKENIZER_STATE(ScriptDataEscapedDashDash) \
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__ENUMERATE_TOKENIZER_STATE(ScriptDataEscapedLessThanSign) \
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__ENUMERATE_TOKENIZER_STATE(ScriptDataEscapedEndTagOpen) \
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__ENUMERATE_TOKENIZER_STATE(ScriptDataEscapedEndTagName) \
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__ENUMERATE_TOKENIZER_STATE(ScriptDataDoubleEscapeStart) \
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__ENUMERATE_TOKENIZER_STATE(ScriptDataDoubleEscaped) \
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__ENUMERATE_TOKENIZER_STATE(ScriptDataDoubleEscapedDash) \
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__ENUMERATE_TOKENIZER_STATE(ScriptDataDoubleEscapedDashDash) \
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__ENUMERATE_TOKENIZER_STATE(ScriptDataDoubleEscapedLessThanSign) \
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__ENUMERATE_TOKENIZER_STATE(ScriptDataDoubleEscapeEnd) \
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__ENUMERATE_TOKENIZER_STATE(BeforeAttributeName) \
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__ENUMERATE_TOKENIZER_STATE(AttributeName) \
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__ENUMERATE_TOKENIZER_STATE(AfterAttributeName) \
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__ENUMERATE_TOKENIZER_STATE(BeforeAttributeValue) \
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__ENUMERATE_TOKENIZER_STATE(AttributeValueDoubleQuoted) \
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__ENUMERATE_TOKENIZER_STATE(AttributeValueSingleQuoted) \
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__ENUMERATE_TOKENIZER_STATE(AttributeValueUnquoted) \
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__ENUMERATE_TOKENIZER_STATE(AfterAttributeValueQuoted) \
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__ENUMERATE_TOKENIZER_STATE(SelfClosingStartTag) \
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__ENUMERATE_TOKENIZER_STATE(BogusComment) \
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__ENUMERATE_TOKENIZER_STATE(MarkupDeclarationOpen) \
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__ENUMERATE_TOKENIZER_STATE(CommentStart) \
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__ENUMERATE_TOKENIZER_STATE(CommentStartDash) \
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__ENUMERATE_TOKENIZER_STATE(Comment) \
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__ENUMERATE_TOKENIZER_STATE(CommentLessThanSign) \
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__ENUMERATE_TOKENIZER_STATE(CommentLessThanSignBang) \
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__ENUMERATE_TOKENIZER_STATE(CommentLessThanSignBangDash) \
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__ENUMERATE_TOKENIZER_STATE(CommentLessThanSignBangDashDash) \
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__ENUMERATE_TOKENIZER_STATE(CommentEndDash) \
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__ENUMERATE_TOKENIZER_STATE(CommentEnd) \
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__ENUMERATE_TOKENIZER_STATE(CommentEndBang) \
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__ENUMERATE_TOKENIZER_STATE(DOCTYPE) \
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__ENUMERATE_TOKENIZER_STATE(BeforeDOCTYPEName) \
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__ENUMERATE_TOKENIZER_STATE(DOCTYPEName) \
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__ENUMERATE_TOKENIZER_STATE(AfterDOCTYPEName) \
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__ENUMERATE_TOKENIZER_STATE(AfterDOCTYPEPublicKeyword) \
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__ENUMERATE_TOKENIZER_STATE(BeforeDOCTYPEPublicIdentifier) \
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__ENUMERATE_TOKENIZER_STATE(DOCTYPEPublicIdentifierDoubleQuoted) \
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__ENUMERATE_TOKENIZER_STATE(DOCTYPEPublicIdentifierSingleQuoted) \
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__ENUMERATE_TOKENIZER_STATE(AfterDOCTYPEPublicIdentifier) \
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__ENUMERATE_TOKENIZER_STATE(BetweenDOCTYPEPublicAndSystemIdentifiers) \
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__ENUMERATE_TOKENIZER_STATE(AfterDOCTYPESystemKeyword) \
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__ENUMERATE_TOKENIZER_STATE(BeforeDOCTYPESystemIdentifier) \
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__ENUMERATE_TOKENIZER_STATE(DOCTYPESystemIdentifierDoubleQuoted) \
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__ENUMERATE_TOKENIZER_STATE(DOCTYPESystemIdentifierSingleQuoted) \
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__ENUMERATE_TOKENIZER_STATE(AfterDOCTYPESystemIdentifier) \
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__ENUMERATE_TOKENIZER_STATE(BogusDOCTYPE) \
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__ENUMERATE_TOKENIZER_STATE(CDATASection) \
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__ENUMERATE_TOKENIZER_STATE(CDATASectionBracket) \
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__ENUMERATE_TOKENIZER_STATE(CDATASectionEnd) \
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__ENUMERATE_TOKENIZER_STATE(CharacterReference) \
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__ENUMERATE_TOKENIZER_STATE(NamedCharacterReference) \
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__ENUMERATE_TOKENIZER_STATE(AmbiguousAmpersand) \
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__ENUMERATE_TOKENIZER_STATE(NumericCharacterReference) \
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__ENUMERATE_TOKENIZER_STATE(HexadecimalCharacterReferenceStart) \
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__ENUMERATE_TOKENIZER_STATE(DecimalCharacterReferenceStart) \
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__ENUMERATE_TOKENIZER_STATE(HexadecimalCharacterReference) \
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__ENUMERATE_TOKENIZER_STATE(DecimalCharacterReference) \
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__ENUMERATE_TOKENIZER_STATE(NumericCharacterReferenceEnd)
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class WEB_API HTMLTokenizer {
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public:
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explicit HTMLTokenizer();
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explicit HTMLTokenizer(StringView input, ByteString const& encoding);
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~HTMLTokenizer();
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enum class State {
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#define __ENUMERATE_TOKENIZER_STATE(state) state,
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ENUMERATE_TOKENIZER_STATES
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#undef __ENUMERATE_TOKENIZER_STATE
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};
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enum class StopAtInsertionPoint {
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No,
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Yes,
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};
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Optional<HTMLToken> next_token(StopAtInsertionPoint = StopAtInsertionPoint::No);
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void switch_to(State new_state);
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auto const& source() const { return m_source; }
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String unparsed_input() const;
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void append_to_input_stream(StringView input);
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void close_input_stream();
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bool is_input_stream_closed() const { return m_input_stream_closed; }
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void insert_input_at_insertion_point(StringView input);
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void insert_eof();
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bool is_insertion_point_defined() const;
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bool is_insertion_point_reached();
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void undefine_insertion_point();
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void store_insertion_point();
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void restore_insertion_point();
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void store_old_insertion_point() { store_insertion_point(); }
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void restore_old_insertion_point() { restore_insertion_point(); }
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void update_insertion_point();
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// This permanently cuts off the tokenizer input stream.
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void abort();
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void parser_did_run(Badge<HTMLParser>);
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RustFfiTokenizerHandle* ffi_handle(Badge<HTMLParser>) { return m_tokenizer; }
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private:
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static char const* state_name(State state)
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{
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switch (state) {
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#define __ENUMERATE_TOKENIZER_STATE(state) \
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case State::state: \
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return #state;
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ENUMERATE_TOKENIZER_STATES
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#undef __ENUMERATE_TOKENIZER_STATE
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};
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VERIFY_NOT_REACHED();
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}
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State m_state { State::Data };
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String m_source;
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bool m_input_stream_closed { false };
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RustFfiTokenizerHandle* m_tokenizer { nullptr };
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};
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}
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