Abstract

We present a Haskell solution to the problem of enumerating the strings of a regular expression with respect to a regular preorder, a term we soon define. A version of this problem was considered in a note by Jayadev Misra. We have generalized the problem. The use of Haskell was suggested by Edsger W. Dijkstra and our solution makes critical use of Haskell's lazy evaluation.

Citations