Michael Montague scripsit:

> An <sre> is not a data type. It is a language. This is like having
> 'valid-syntax?' to check an expression before you call 'eval' with
> it.

That sounds like a fine idea to me.

--
How they ever reached any conclusion at all     <xxxxxx@ccil.org>
is starkly unknowable to the human mind.        http://www.ccil.org/~cowan
        --"Backstage Lensman", Randall Garrett