[antlr-interest] "An Introduction to ANTLR" presentation slides

[Darien Hager]

Hmm. So...  isnt' it possible to write a "syntactic predicate" which checks
whether the next Identifier token is a previously-defined function versus
a previously-defined variable? In that case, aren't you checking meaning
rather than form, and it is therefore is it a semantic-level predicate?

Now, academically there may be some excellent reason "syntactic predicate"
is an equally accurate term in that
case, but for myself and presumably other mere mortals it can be
confusing and seems to be vaguely out of step with the rest of the
documentation.
I think if I hadn't read this thread, "syntactic predicate" would imply to
me some relationship with the lexer rules.

I don't think it would add any negative ambiguituty to call them "grammar
predicates" or just "predicates" in the context of writing ANTLR grammar
rules.
-- 
Darien Hager
Developer
Etelos, Inc.
darien at etelos.com

http://www.etelos.com
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