[antlr-interest] AST rule association.
praveen_c
praveen_c at yahoo.com
Mon Nov 25 13:57:02 PST 2002
I created an AST and I would like to know which rule matched which
node. While traversing the tree I'd like to use this rule information
as context info. Not sure if I'm asking the right question. But
basically I want to differentiate instances of a given Token/AST Node
based on the rule that matched it. Given an AST how do I find out the
corresponding rule?
It's probably documented somewhere in the documentation or examples.
But since I don't exactly know what I'm looking for, it's a bit
difficult. The only way I can think of, was to subclass and set flags
on the ASTs using actions.
Thanks,
Praveen.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
More information about the antlr-interest
mailing list