[antlr-interest] Problem with lexer

[Emond Papegaaij]

Hello,

I'm having a problem with the attached lexer (v3). When it is run with the 
Test class, the NODE_SELECTION token is never matched, even though the 
input contains a NODE_SELECTION. The problem is that the lexer does not 
look past the WS? in NODE_SELECTION. It first matches '#value'. Now it 
checks the LA and decides to take the (WS? '[]') branch, even though there 
is no '[]'. I've tried adding syntactic predicates and changing k, but to 
no avail. Am I doing something wrong here?

Best regards,
Emond Papegaaij
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lexer grammar ActionMacroGenerate;

NODE_SELECTION
	: '#' IDENTIFIER (WS? '[]')? {
		System.out.println("MATCH: "+getText());
	}
	;

ANY_TEXT
	: . {System.out.println("MATCH ANY: "+getText());}
	;

fragment
WS
	: ( ' ' | '\t' | '\f' | '\r' | '\n')+
	;

fragment
IDENTIFIER
	: ('a'..'z'|'A'..'Z'|'_'|'$') ('a'..'z'|'A'..'Z'|'_'|'0'..'9'|'$')*
	;
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