🚀 go-pugleaf

I've discovered two significant incompatibilities between the libg++
stream class and the description in Stroustrup's book.
	1) istream.get(char*,int,char) is of type File, rather than
type istream. This has the unpleasant effect of making a following >>
not function, but not be flagged as an error.
	2) operator>>(char&) doesn't ignore whitespace, yet this
behavior is explicit in the description in the book (in fact, there is
even a code sample, of how to define this operator...) If I wanted to
read whitespace, I would use istream.get(char&).

I'd also like to note that the Regex class is missing any way of using
the registers (\(\) pairs) even though the code is there. In fact,
both libg++ and OOPS use slightly different version of the GNUemacs
regexp code anyway... having the superset here would be nice.

				Mark Eichin
				<eichin@athena.mit.edu>