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e0be17e4fb
CSS Syntax 3 (https://drafts.csswg.org/css-syntax) has changed significantly since we implemented it a couple of years ago. Just about every parsing algorithm has been rewritten in terms of the new token stream concept, and to support nested styles. As all of those algorithms call into each other, this is an unfortunately chonky diff. As part of this, the transitory types (Declaration, Function, AtRule...) have been rewritten. That's both because we have new requirements of what they should be and contain, and also because the spec asks us to create and then gradually modify them in place, which is easier if they are plain structs.
56 lines
1.9 KiB
C++
56 lines
1.9 KiB
C++
/*
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* Copyright (c) 2020-2021, the SerenityOS developers.
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* Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
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* Copyright (c) 2023, Andreas Kling <andreas@ladybird.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/NonnullRefPtr.h>
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#include <AK/RefPtr.h>
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#include <LibWeb/CSS/Parser/Token.h>
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#include <LibWeb/CSS/Parser/Types.h>
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namespace Web::CSS::Parser {
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// https://drafts.csswg.org/css-syntax/#component-value
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class ComponentValue {
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public:
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ComponentValue(Token);
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explicit ComponentValue(Function&&);
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explicit ComponentValue(SimpleBlock&&);
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~ComponentValue();
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bool is_block() const { return m_value.has<SimpleBlock>(); }
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SimpleBlock& block() { return m_value.get<SimpleBlock>(); }
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SimpleBlock const& block() const { return m_value.get<SimpleBlock>(); }
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bool is_function() const { return m_value.has<Function>(); }
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bool is_function(StringView name) const;
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Function& function() { return m_value.get<Function>(); }
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Function const& function() const { return m_value.get<Function>(); }
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bool is_token() const { return m_value.has<Token>(); }
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bool is(Token::Type type) const { return is_token() && token().is(type); }
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bool is_delim(u32 delim) const { return is(Token::Type::Delim) && token().delim() == delim; }
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bool is_ident(StringView ident) const;
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Token const& token() const { return m_value.get<Token>(); }
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operator Token() const { return m_value.get<Token>(); }
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String to_string() const;
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String to_debug_string() const;
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private:
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Variant<Token, Function, SimpleBlock> m_value;
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};
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}
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template<>
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struct AK::Formatter<Web::CSS::Parser::ComponentValue> : Formatter<StringView> {
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ErrorOr<void> format(FormatBuilder& builder, Web::CSS::Parser::ComponentValue const& component_value)
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{
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return Formatter<StringView>::format(builder, component_value.to_string());
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}
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};
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