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Cweb is a literate programming system for the programming language C. Experience developing and using it forms the basis of this paper, the purpose of which is to: support Knuth's enthusiasm for literate programming; discuss developments in literate programming support, both within the current framework of cweb and to interactive graphics support; discuss the implementation issues, considering cweb as part of a simple IPSE (Integrated Project Support Environment); the conclusions for IPSEs appear pessimistic.
Harold Thimbleby (Sat,) studied this question.