[antlr-interest] Problem in getting the Identifiers

[Premkumar Rathanavelu]

Hi to all.,
 
I'm writing a preprocessor grammar and need to get only 
ID's from the below eg:
 
eg: #if (A + B | C+D)  
 
here A,B,C,D are Identifiers.
 
I want to get only the ID's that is A,B,C,D.
 
Please help me to frame a rule(lexer/parser) for this.
 
Thanks.,
Prem
 

		
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