Oops. I didn't find that. Thanks for the pointer. (Thinks: does it work with HUGS?)
It works with the latest hugs, November 2002 (use "hugs +N" to get the hierarchical libraries).
A significant amount of my work went into the test cases and matching the parsing code against the (revised work-in-progress) URI spec, so maybe there's some residual value there...?
When I wrote Network.URI I took the grammar from the RFC, and also a bunch of test cases, which are in GHC's testsuite (fptools/testsuite/tests/ghc-regress/lib/net/uri001.hs). It might not be up to date with the latest rev of the spec, however. Any extra testing you can do and/or comments you have on the API would be appreciated. One thing I know is questionable is that parseURI returns a Maybe URI, when in fact there are no strings for which it can return Nothing (*everything* is a valid URI, it seems!). Cheers, Simon