[antlr-interest] How to use greedy in antlr3

[Pantzagias, Martina]

Hi everybody,
 
I´m using ANTLR3 with AW since some weeks and I have a problem with one of my lexer rules.Consider the following pseudocode:
 
alternative 1:
    eat everything between '{' ... '}' until you get the token '}'
 
alternative 2:
    eat everything between '{!{' ... '}!}' until you get '}!}'
 
 
Here is my lexer rule "Tag"
 
Tag
    :    '{' (options{greedy=false;}: .)* '}'
    ;
 
This works fine, but if I add the second alternative an warning occurs (--> multiple alternatives):
 
Tag
    :    '{' (options{greedy=false;}: .)* '}'
    |    '{!{' (options{greedy=false;}: .)* '}!}'
 
 
How can I solve this problem?
 
 
 
best regards,
Martina


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