[antlr-interest] semantic predicate does not work

[mzukowski at yci.com]

Try putting spaces between your operators, like 
{System.out.println("found identifier " + d1.getText());}

Does that work?

Monty


-----Original Message-----
From: weberjn <weberjn at yahoo.com> [mailto:weberjn at yahoo.com]
Sent: Tuesday, January 21, 2003 8:00 AM
To: antlr-interest at yahoogroups.com
Subject: [antlr-interest] semantic predicate does not work


Hi,

on Terence Parr's Getting Started With ANTLR there is a rule with
a semantic predicate

startRule
    :   n:NAME
        {System.out.println("Hi there, "+n.getText());};



I tried to insert something like that into the IDL grammar:

module
	:    "module" 	
	     d1:identifier 
         {System.out.println("found identifier "+d1.getText());}
 	     LCURLY definition_list RCURLY
	;


but the java compile complains of 

   [javac] C:\myjava\antlridl\gensrc\IDLParser.java:268: cannot
resolve symbol
   [javac] symbol  : variable d1
   [javac] location: class IDLParser
   [javac]                     System.out.println("found identifier
"+d1.getText());


What is the trick?

Thanks for any hints,
Juergen



 

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