[antlr-interest] End of child list in tree parser
David Ray
ray at soartech.com
Thu Jan 26 06:57:28 PST 2006
Hello,
In an ANTLR tree parser, is there any special token I can match against
for "end of child list", kind of like EOF in a non-tree parser? I'm
writing a validator for the structure of my AST and I'd like to make
sure there aren't any trailing nodes.
Something like this:
formalParameter: #(FORMAL_PARAMETER IDENT IDENT *EOF*)
to ensure there are two and only two IDENT children of FORMAL_PARAMETER.
I know I can manually check getNextSibling() of the last child in a
rule, but it would be cool if ANTLR did it for me :)
Thanks,
Dave
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