[antlr-interest] v3: using literals

[Dieter Frej]

Hi,

since antlrworks is a nice program I started using it (in my case it 
does not matter whether I use antlr v2 or v3).

I have something pretty easy such as

typeSpec
	:
	(classOrInterfaceType | primitiveType)
	;
	
primitiveType
	:	//
	|	'boolean'
	|	'byte'
	|	'char'
	|	'short'
	|	'int'
	|	'float'
	|	'long'
	|	'double'
	;

classOrInterfaceType
	:	//
		IDENT
	;

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

I am getting a

[16:32:58] test.g:47:9: Decision can match input such as "IDENT" using
multiple alternatives: 1, 2
As a result, alternative(s) 2 were disabled for that input

which I completly understand. The problem is that I do not know how to
use and test for literals in antlr v3. I did put

grammar test;
options {
	output = AST;
}
tokens {
	LITERAL_boolean='boolean';
	LITERAL_byte='byte';
	LITERAL_char='char';
	LITERAL_short='short';
	LITERAL_int='int';
	LITERAL_float='float';
	LITERAL_long='long';
	LITERAL_double='double';
}

in my grammar, but when I put testLiterals=true under options, it keeps
complaining. I searched for it on the web page, but nothing :-/ Not even
in the java example grammar that is on the v3 page.

Any hints/suggestions how I could do that in v3? Or is v3 not yet ready
for that?
If so: is there any other nice visual development tool for antlr v2?

Didi