ba4db899d4
This moves some stuff around to make LibGUI depend on LibSyntax instead of the other way around, as not every application that wishes to do syntax highlighting is necessarily a LibGUI (or even a GUI) application.
82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
/*
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* Copyright (c) 2023, Sam Atkins <atkinssj@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 "SyntaxHighlighter.h"
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#include <LibCMake/CMakeCache/Lexer.h>
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namespace CMake::Cache {
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static Gfx::TextAttributes style_for_token_type(Gfx::Palette const& palette, Token::Type type)
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{
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switch (type) {
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case Token::Type::Comment:
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case Token::Type::HelpText:
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return { palette.syntax_comment() };
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case Token::Type::Key:
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return { palette.syntax_identifier() };
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case Token::Type::Type:
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return { palette.syntax_type() };
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case Token::Type::Colon:
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case Token::Type::Equals:
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return { palette.syntax_punctuation() };
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case Token::Type::Value:
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return { palette.syntax_string() };
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case Token::Type::Garbage:
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return { palette.red(), {}, false, Gfx::TextAttributes::UnderlineStyle::Wavy, palette.red() };
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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 SyntaxHighlighter::is_identifier(u64 token_type) const
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{
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auto cmake_token = static_cast<Token::Type>(token_type);
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return cmake_token == Token::Type::Key;
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}
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void SyntaxHighlighter::rehighlight(Gfx::Palette const& palette)
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{
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auto text = m_client->get_text();
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auto tokens = Lexer::lex(text).release_value_but_fixme_should_propagate_errors();
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Vector<Syntax::TextDocumentSpan> spans;
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auto highlight_span = [&](Token::Type type, Position const& start, Position const& end) {
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Syntax::TextDocumentSpan span;
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span.range.set_start({ start.line, start.column });
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span.range.set_end({ end.line, end.column });
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if (!span.range.is_valid())
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return;
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span.attributes = style_for_token_type(palette, type);
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span.is_skippable = false;
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span.data = static_cast<u64>(type);
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spans.append(move(span));
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};
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for (auto const& token : tokens) {
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highlight_span(token.type, token.start, token.end);
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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<SyntaxHighlighter::MatchingTokenPair> SyntaxHighlighter::matching_token_pairs_impl() const
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{
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static Vector<MatchingTokenPair> empty;
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return empty;
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}
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bool SyntaxHighlighter::token_types_equal(u64 token1, u64 token2) const
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{
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return static_cast<Token::Type>(token1) == static_cast<Token::Type>(token2);
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}
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}
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