I just tried haddock-0.1. Good thing! Two quibbles, though: * the parser chokes on CVS headers like -- $Id ...$ ( but -- -- $Id ..$ is OK)

Yes, because '-- $' has a special meaning in Haddock (it's a named documentation comment).

* is there support for hierarchical namespaces? ( with module Foo.Bar in file Foo/Bar.hs, and so on )

Yes, hierarchical modules are supported. You must pass the full filenames of each of the modules to be processed to Haddock, though. Cheers, Simon