[antlr-interest] Problems with n-ary trees

[BoneCrusher Pouliot]

I want to compute the result of a n-ary tree, something like :

#(PLUS A B C)

instead of the good ol' :

#(PLUS A #(PLUS B C))

from the calculator exemple. Here the rule would be :

#(PLUS (expr)*)

but I want to keep the result of each children in a vector cell and the add 
all the elements in the vector. Anyone can help ? Any info would be greatly 
appreciated !