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			https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules "The compiler is more likely to get the default semantics right and you cannot implement these functions better than the compiler."
		
			
				
	
	
		
			81 lines
		
	
	
	
		
			2.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			81 lines
		
	
	
	
		
			2.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
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|  * Copyright (c) 2022, the SerenityOS developers.
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|  *
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|  * SPDX-License-Identifier: BSD-2-Clause
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|  */
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| 
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| #include "SyntaxHighlighter.h"
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| #include "Lexer.h"
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| #include <LibGfx/Palette.h>
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| 
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| namespace GUI::GML {
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| 
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| static Syntax::TextStyle style_for_token_type(const Gfx::Palette& palette, Token::Type type)
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| {
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|     switch (type) {
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|     case Token::Type::LeftCurly:
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|     case Token::Type::RightCurly:
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|         return { palette.syntax_punctuation() };
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|     case Token::Type::ClassMarker:
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|         return { palette.syntax_keyword() };
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|     case Token::Type::ClassName:
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|         return { palette.syntax_identifier(), true };
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|     case Token::Type::Identifier:
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|         return { palette.syntax_identifier() };
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|     case Token::Type::JsonValue:
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|         return { palette.syntax_string() };
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|     case Token::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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| 
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| bool SyntaxHighlighter::is_identifier(u64 token) const
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| {
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|     auto ini_token = static_cast<Token::Type>(token);
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|     return ini_token == Token::Type::Identifier;
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| }
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| 
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| void SyntaxHighlighter::rehighlight(const Palette& palette)
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| {
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|     auto text = m_client->get_text();
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|     Lexer lexer(text);
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|     auto tokens = lexer.lex();
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| 
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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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| 
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|     m_has_brace_buddies = false;
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|     highlight_matching_token_pair();
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| 
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|     m_client->do_update();
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| }
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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> pairs;
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|     if (pairs.is_empty()) {
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|         pairs.append({ static_cast<u64>(Token::Type::LeftCurly), static_cast<u64>(Token::Type::RightCurly) });
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|     }
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|     return pairs;
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| }
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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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| }
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