r878@spiff: Fredrik | 2005-11-12 14:37:22 +0100
minor docstring and comment tweaks (wikipedia might not be the
ultimate reference, but it's a lot better than "XXX" ;-)
added test script and expected output file as well
this closes patch 103297.
__all__ attributes will be added to other modules without first submitting
a patch, just adding the necessary line to the test script to verify
more-or-less correct implementation.