[antlr-interest] Rewriting trees

[Maassen, H.A.M.]

Thanks for the help.
Although I did indeed include the BuildAST option, your suggestion helped me find the real culprit:
 
ASTLabelType = "antlr.CommonAST";
 
I don't even remember how that got there... chalk one up to blind copy/pasting ;)
 
Regards, Harald Maassen
 

	-----Original Message----- 
	From: Monty Zukowski [mailto:monty at codetransform.com] 
	Sent: Fri 11/26/2004 4:51 PM 
	To: antlr-interest at yahoogroups.com 
	Cc: 
	Subject: Re: [antlr-interest] Rewriting trees
	
	


	Terence Parr wrote:
	>
	> On Nov 26, 2004, at 2:33 AM, Maassen, H.A.M. wrote:
	>
	>
	>>Ok I'm stumped.. I've looked through the manual, the FAQ, but I can't
	>>figure out how to reorder trees using a treeparser.. why won't this
	>>work:
	>>
	>>rule: "if" // ignore subtrees for now
	>>      { ## = #([VIRT,"IF STATEMENT"], ##); }
	>>    ;
	>>
	>>How do I tell the treewalker to just copy subtrees without having to
	>>describe their exact structure?
	>>
	>>rule: #("if" (.)*)  // this doesn't work :(
	>>    ;
	>>
	>>Am I missing anything? Is it right under my nose? I know it can't be
	>>this difficult...
	>>Are there any tree-reordering examples out there? The ones I
	>>downloaded from ANTLR.org don't rewrite but rather generate code or
	>>calculate expressions or something else unrelated...
	>
	
	Note that the tree parser builds trees as it parses.  If it doesn't
	parse -- like when you use "." -- then it will not build that tree.
	
	Monty
	
	
	
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