8c8b97685b
This adds a lexer capable of handling the XDR protocol files. The lexical rquirements are detailed in https://www.rfc-editor.org/rfc/rfc4506#section-6.2 pytest is introduced as a build dependancy for testing python code. Reviewed-by: Michal Privoznik <mprivozn@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>