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ladybird/Userland/Libraries/LibCpp/SyntaxHighlighter.h

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LibGUI: Add missing copyright headers
2020-03-14 00:07:44 +02:00
/*
* Copyright (c) 2020, the SerenityOS developers.
*
Everything: Move to SPDX license identifiers in all files. SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
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* SPDX-License-Identifier: BSD-2-Clause
LibGUI: Add missing copyright headers
2020-03-14 00:07:44 +02:00
*/
LibGUI+HackStudio: Move syntax highlighting from HackStudio to LibGUI This patch introduces the GUI::SyntaxHighlighter class, which can be attached to a GUI::TextEditor to provide syntax highlighting. The C++ syntax highlighting from HackStudio becomes a new class called GUI::CppSyntaxHighlighter. This will make it possible to get C++ syntax highlighting in any app that uses a GUI::TextEditor. :^) Sidenote: It does feel a bit weird having a C++ lexer in a GUI toolkit library, and we'll probably end up moving this out to a separate place as this functionality grows larger.
2020-02-07 20:07:15 +01:00
#pragma once
LibSyntax: Move GUI::Highlighter to Syntax::Highlighter in LibSyntax This is a move towards dropping more LibGUI dependencies.
2021-02-07 15:15:10 +01:00
#include <LibSyntax/Highlighter.h>
LibGUI+HackStudio: Move syntax highlighting from HackStudio to LibGUI This patch introduces the GUI::SyntaxHighlighter class, which can be attached to a GUI::TextEditor to provide syntax highlighting. The C++ syntax highlighting from HackStudio becomes a new class called GUI::CppSyntaxHighlighter. This will make it possible to get C++ syntax highlighting in any app that uses a GUI::TextEditor. :^) Sidenote: It does feel a bit weird having a C++ lexer in a GUI toolkit library, and we'll probably end up moving this out to a separate place as this functionality grows larger.
2020-02-07 20:07:15 +01:00
LibGUI+LibCpp: Move C++ syntax highlighter to LibCpp This makes LibGUI not depend on LibCpp.
2021-02-07 14:40:36 +01:00
namespace Cpp {
LibGUI+HackStudio: Move syntax highlighting from HackStudio to LibGUI This patch introduces the GUI::SyntaxHighlighter class, which can be attached to a GUI::TextEditor to provide syntax highlighting. The C++ syntax highlighting from HackStudio becomes a new class called GUI::CppSyntaxHighlighter. This will make it possible to get C++ syntax highlighting in any app that uses a GUI::TextEditor. :^) Sidenote: It does feel a bit weird having a C++ lexer in a GUI toolkit library, and we'll probably end up moving this out to a separate place as this functionality grows larger.
2020-02-07 20:07:15 +01:00
LibCpp: Add SemanticSyntaxHighlighter The SemanticSyntaxHighlighter uses TokenInfo results from the language server to provide 'semantic' syntax highlighting, which provides more fin-grained text spans results. For example, the SemanticSyntaxHighlighter can color function calls, member fields references and user-defined types in different colors. With the simple lexer-only syntax highlighter, all of these tokens were given the same text highlighting span type. Since we have to provide immediate highlighting feedback to the user after each edit and before we get the result for the language server, we use a heuristic which computes the diff between the current tokens and the last known tokens with compete semantic information (We use LibDiff for this). This heuristic is not very performant, and starts feeling sluggish with bigger (~200 LOC) files. A possible future improvement would be only computing the diff for tokens in text ranges that have changes since the last commit.
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class SemanticSyntaxHighlighter;
LibSyntax: Move GUI::Highlighter to Syntax::Highlighter in LibSyntax This is a move towards dropping more LibGUI dependencies.
2021-02-07 15:15:10 +01:00
class SyntaxHighlighter final : public Syntax::Highlighter {
LibCpp: Add SemanticSyntaxHighlighter The SemanticSyntaxHighlighter uses TokenInfo results from the language server to provide 'semantic' syntax highlighting, which provides more fin-grained text spans results. For example, the SemanticSyntaxHighlighter can color function calls, member fields references and user-defined types in different colors. With the simple lexer-only syntax highlighter, all of these tokens were given the same text highlighting span type. Since we have to provide immediate highlighting feedback to the user after each edit and before we get the result for the language server, we use a heuristic which computes the diff between the current tokens and the last known tokens with compete semantic information (We use LibDiff for this). This heuristic is not very performant, and starts feeling sluggish with bigger (~200 LOC) files. A possible future improvement would be only computing the diff for tokens in text ranges that have changes since the last commit.
2022-02-06 23:02:34 +02:00
friend SemanticSyntaxHighlighter;
LibGUI+HackStudio: Move syntax highlighting from HackStudio to LibGUI This patch introduces the GUI::SyntaxHighlighter class, which can be attached to a GUI::TextEditor to provide syntax highlighting. The C++ syntax highlighting from HackStudio becomes a new class called GUI::CppSyntaxHighlighter. This will make it possible to get C++ syntax highlighting in any app that uses a GUI::TextEditor. :^) Sidenote: It does feel a bit weird having a C++ lexer in a GUI toolkit library, and we'll probably end up moving this out to a separate place as this functionality grows larger.
2020-02-07 20:07:15 +01:00
public:
LibGUI+LibCpp: Move C++ syntax highlighter to LibCpp This makes LibGUI not depend on LibCpp.
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SyntaxHighlighter() { }
virtual ~SyntaxHighlighter() override;
LibGUI: Add underlines to highlighting
2020-03-12 16:36:25 +02:00
LibWeb+LibSyntax: Implement nested syntax highlighters And use them to highlight javascript in HTML source. This commit also changes how TextDocumentSpan::data is interpreted, as it used to be an opaque pointer, but everyone stuffed an enum value inside it, which made the values not unique to each highlighter; that field is now a u64 serial id. The syntax highlighters don't need to change their ways of stuffing token types into that field, but a highlighter that calls another nested highlighter needs to register the nested types for use with token pairs.
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virtual bool is_identifier(u64) const override;
virtual bool is_navigatable(u64) const override;
HackStudio: Abstract over syntax highlighter
2020-03-12 17:23:54 +02:00
LibSyntax: Move GUI::Highlighter to Syntax::Highlighter in LibSyntax This is a move towards dropping more LibGUI dependencies.
2021-02-07 15:15:10 +01:00
virtual Syntax::Language language() const override { return Syntax::Language::Cpp; }
LibCpp: Use east const style in Lexer and SyntaxHighlighter
2021-06-03 23:17:34 +02:00
virtual void rehighlight(Palette const&) override;
LibGUI: Abstract token pair matching
2020-03-13 00:51:02 +02:00
protected:
LibWeb+LibSyntax: Implement nested syntax highlighters And use them to highlight javascript in HTML source. This commit also changes how TextDocumentSpan::data is interpreted, as it used to be an opaque pointer, but everyone stuffed an enum value inside it, which made the values not unique to each highlighter; that field is now a u64 serial id. The syntax highlighters don't need to change their ways of stuffing token types into that field, but a highlighter that calls another nested highlighter needs to register the nested types for use with token pairs.
2021-06-07 12:03:09 +04:30
virtual Vector<MatchingTokenPair> matching_token_pairs_impl() const override;
virtual bool token_types_equal(u64, u64) const override;
LibGUI+HackStudio: Move syntax highlighting from HackStudio to LibGUI This patch introduces the GUI::SyntaxHighlighter class, which can be attached to a GUI::TextEditor to provide syntax highlighting. The C++ syntax highlighting from HackStudio becomes a new class called GUI::CppSyntaxHighlighter. This will make it possible to get C++ syntax highlighting in any app that uses a GUI::TextEditor. :^) Sidenote: It does feel a bit weird having a C++ lexer in a GUI toolkit library, and we'll probably end up moving this out to a separate place as this functionality grows larger.
2020-02-07 20:07:15 +01:00
};
}
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