[antlr-interest] Pb with tree walker
jcdur
Jean-Claude.Durand at imag.fr
Thu Sep 30 11:05:28 PDT 2004
New to antlr, I am trying some examples of tree walking; I got some trouble with this
simple one which prints an AST:
imprimerArbre[int indent]:
#( nc:.
{ for(int i=1;i<=indent*3; i++)
cout<<' ';
cout<<nc->getText()<<endl;
}
( imprimerArbre[indent+1] )*
)
;
As I hoped "toStringList" prints the true AST:
( Foret ( Arbre ( Structure ( 1 ( 2 3 4 ) ) ) ( Decoration ( FORME ' ' ) ( UL 'ULTXT' ) ) (
Decoration ( FORME 'ANLAGEKOSTEN' ) ( KSY GN ) ) ( Decoration ( FORME ' ' ) ( UL '.' ) ) (
Decoration ( FORME 'ANLAGEKOSTEN' ) ( SF GOV ) ) ) )
and "ImprimerArbre" only prints:
Foret
Arbre
Structure
1
2
3
4
and not the siblings of the node Structure (ie the Decoration subtrees). And the sibling of
3 is printed !
Thanks a lot,
Jean-Claude.
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