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https://github.com/LadybirdBrowser/ladybird.git
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71b4433b0d
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.
87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
/*
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* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibGUI/GMLLexer.h>
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#include <LibGUI/GMLSyntaxHighlighter.h>
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#include <LibGUI/TextEditor.h>
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#include <LibGfx/Font.h>
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#include <LibGfx/Palette.h>
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namespace GUI {
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static Syntax::TextStyle style_for_token_type(const Gfx::Palette& palette, GMLToken::Type type)
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{
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switch (type) {
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case GMLToken::Type::LeftCurly:
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case GMLToken::Type::RightCurly:
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return { palette.syntax_punctuation() };
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case GMLToken::Type::ClassMarker:
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return { palette.syntax_keyword() };
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case GMLToken::Type::ClassName:
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return { palette.syntax_identifier(), true };
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case GMLToken::Type::Identifier:
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return { palette.syntax_identifier() };
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case GMLToken::Type::JsonValue:
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return { palette.syntax_string() };
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case GMLToken::Type::Comment:
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return { palette.syntax_comment() };
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default:
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return { palette.base_text() };
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}
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}
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bool GMLSyntaxHighlighter::is_identifier(u64 token) const
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{
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auto ini_token = static_cast<GUI::GMLToken::Type>(token);
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return ini_token == GUI::GMLToken::Type::Identifier;
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}
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void GMLSyntaxHighlighter::rehighlight(const Palette& palette)
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{
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auto text = m_client->get_text();
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GMLLexer lexer(text);
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auto tokens = lexer.lex();
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Vector<GUI::TextDocumentSpan> spans;
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for (auto& token : tokens) {
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GUI::TextDocumentSpan span;
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span.range.set_start({ token.m_start.line, token.m_start.column });
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span.range.set_end({ token.m_end.line, token.m_end.column });
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auto style = style_for_token_type(palette, token.m_type);
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span.attributes.color = style.color;
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span.attributes.bold = style.bold;
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span.is_skippable = false;
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span.data = static_cast<u64>(token.m_type);
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spans.append(span);
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}
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m_client->do_set_spans(move(spans));
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m_has_brace_buddies = false;
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highlight_matching_token_pair();
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m_client->do_update();
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}
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Vector<GMLSyntaxHighlighter::MatchingTokenPair> GMLSyntaxHighlighter::matching_token_pairs_impl() const
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{
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static Vector<MatchingTokenPair> pairs;
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if (pairs.is_empty()) {
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pairs.append({ static_cast<u64>(GMLToken::Type::LeftCurly), static_cast<u64>(GMLToken::Type::RightCurly) });
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}
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return pairs;
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}
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bool GMLSyntaxHighlighter::token_types_equal(u64 token1, u64 token2) const
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{
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return static_cast<GUI::GMLToken::Type>(token1) == static_cast<GUI::GMLToken::Type>(token2);
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}
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GMLSyntaxHighlighter::~GMLSyntaxHighlighter()
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{
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}
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}
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