Cweb query

[Preston L. Bannister]

D.E.Knuth mentions Cweb in his paper "Literate Programming" as
developed at the University of York by Harold Thimbleby.

Does anyone out there know the status of Cweb?  Is it availible?  If
so, on what terms?  Is the University of York on the net?

Please mail any responses.  

Thanks.
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Preston L. Bannister
USENET:  ucbvax!trwrb!felix!preston