[antlr-interest] AST node creation

[Bill Andersen]

Folks,

My apologies.  The example below works - some kind of lag in Eclipse.

On Feb 18, 2008, at 09:34 , Bill Andersen wrote:

> I've been trying the example on p 170 of the ANTLR reference, with a  
> small tweak.  I have a tree-generating grammar ( output=AST is set }
>
> name
> 	: NAME
> 		-> { new CommonTree(new CommonToken(NAME, "Fred")) }
> 	| BLANK_NAME
> 	;
>
> meant to convert any NAMEs seen to "Fred".  When I run the parser  
> and print the AST I don't see any Fred NAMEs, even though the test  
> input hits this production plenty.
>
> Running the code thru the debugger shows the relevant code
>
> root_0 = (Object)adaptor.nil();
> // 102:3: ->
> {
>   adaptor.addChild(root_0,  new CommonTree(new CommonToken(NAME,  
> "Fred")) );
> }
>
> is being executed.  Am I missing anything?
>
>   .bill
>

Bill Andersen (andersen at ontologyworks.com)
Ontology Works, Inc. (www.ontologyworks.com)
3600 O'Donnell Street, Suite 600
Baltimore, MD 21224
Office: 410-675-1201
Cell: 443-858-6444



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