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LibWeb: Implement first draft of CSS syntax highlighting :^)

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This works at the Token level, which is quick and easy but has
drawbacks: We don't know when something is a property name or a value,
or if something is part of a selector. But, this works for now.
This commit is contained in:
Sam Atkins 2021-10-21 21:29:10 +01:00 • committed by Andreas Kling
parent ecf5368535
commit 38f6140159
4 changed files with 191 additions and 0 deletions
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29
Userland/Libraries/LibWeb/CSS/SyntaxHighlighter/SyntaxHighlighter.h Normal file
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/*
* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibSyntax/Highlighter.h>
namespace Web::CSS {
class SyntaxHighlighter : public Syntax::Highlighter {
public:
SyntaxHighlighter() = default;
virtual ~SyntaxHighlighter() override = default;
virtual bool is_identifier(u64) const override;
virtual bool is_navigatable(u64) const override;
virtual Syntax::Language language() const override { return Syntax::Language::CSS; }
virtual void rehighlight(Palette const&) override;
protected:
virtual Vector<MatchingTokenPair> matching_token_pairs_impl() const override;
virtual bool token_types_equal(u64, u64) const override;
};
}