XML generator

Hello,
I have two problems with the gobo XML library:
1. {XM_NAMESPACE}.make seems to miss the precondition a_prefix /= Void , 
or there is a bug in {XM_XMLNS_GENERATOR}.on_attribute line "elseif 
is_implicit (a_prefix)" since if a_prefix is Void a Void call will occur 
in is_implicit

2. How can I influence the output generated by the pretty printer? For 
example I'd like it not to add the prefix to every tag and  attribute.

<tag id="2"> instead of <prefix:tag prefix:id="2">

Also I'd like it to use the short form for tags when possible:

<tag id="2"/> instead of <tag id="2"></tag>

Is this possible somehow or will I have to write my own pretty printer?

Thanks,
Jann

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