[antlr-interest] Rewriting trees

[Maassen, H.A.M.]

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...
 
S.O.S., Harald Maassen


 
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