[antlr-interest] Tree rewrite rule problem
Nilo Roberto C Paim
nilopaim at gmail.com
Mon Sep 24 19:48:53 PDT 2012
Hi, all.
I have the following rule on my grammar:
expr
:
i1=ID
(
compOp boolOp
->
^(BOOLEXPR $i1 compOp boolOp)
| (NOT)? NUMERIC
->
^(BOOLEXPR $i1 NOT? NUMERIC)
|
->
^(BOOLEXPR $i1)
)
;
Problem: the parsing is done correctly, but the resulting tree contains
only the imaginary node BOOLEXPR, with no children. If I put a
System.out.println as action for the alternatives, It shows me correctly,
but anyway, the tree is corrupt.
Any hints?
TIA.
Nilo - Brazil
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