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Syntax coloring seems to ignore custom lexer [message #772060]

Wed, 28 December 2011 22:55

Adam Missing name

Messages: 12
Registered: December 2011

Junior Member

I have a grammar with a custom, external lexer (which extends the generated antlr lexer). I'm trying to do some syntax coloring. For this, I created AntlrTokenToAttributeIdMapper which gets bound in the UI module. My problem is that syntax coloring uses a TokenScanner which seems to ignore my custom lexer and to use the terminals from the grammar file directly. I understand the two scanners are not doing quite the same thing. Is it possible to configure syntax coloring to make use of my custom lexer, or shall I implement a syntaxcoloring TokenScanner, too?

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Re: Syntax coloring seems to ignore custom lexer [message #772067 is a reply to message #772060]

Wed, 28 December 2011 23:17

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Hi,

are you sure you added the correct bindings for the lexer

	public Class<? extends org.eclipse.xtext.parser.antlr.Lexer> bindLexer() {
		return org.xtext.example.mydsl.parser.antlr.internal.InternalMyDslLexer.class;
	}

	public void configureRuntimeLexer(com.google.inject.Binder binder) {
		binder.bind(org.eclipse.xtext.parser.antlr.Lexer.class).annotatedWith(com.google.inject.name.Names.named(org.eclipse.xtext.parser.antlr.LexerBindings.RUNTIME)).to(org.xtext.example.mydsl.parser.antlr.internal.InternalMyDslLexer.class);
	}

	public void configureHighlightingLexer(com.google.inject.Binder binder) {
		binder.bind(org.eclipse.xtext.parser.antlr.Lexer.class).annotatedWith(com.google.inject.name.Names.named(org.eclipse.xtext.ui.LexerUIBindings.HIGHLIGHTING)).to(org.xtext.example.mydsl.parser.antlr.internal.InternalMyDslLexer.class);
	}

	public void configureContentAssistLexer(com.google.inject.Binder binder) {
		binder.bind(org.eclipse.xtext.ui.editor.contentassist.antlr.internal.Lexer.class).annotatedWith(com.google.inject.name.Names.named(org.eclipse.xtext.ui.LexerUIBindings.CONTENT_ASSIST)).to(org.xtext.example.mydsl.ui.contentassist.antlr.internal.InternalMyDslLexer.class);
	}

~Christian

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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