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Re: syntax



>unfortunately, the next most powerful notation after regular languages
>is context-free grammars
One could envison a regexp++ that handles the matching paren kind of stuff.

For what it's worth, I don't think extending the syntax is the way to go.
Put the base language in a good library, and let people write whatever
frontends they want.  Let a thousand interfaces bloom; a thousand points
of interaction, etc.