common-atts

[Cheng-Chang Wu <chengchangwu@yahoo.com>]

I'm using the RELAX NG schema for RELAXNG to develop a
RelaxNG code generator for Eiffel language. Because
I'm new to this field, I don't understand the except
part of common-atts well.

<except>
  <nsName/>
  <nsName ns=3D""/>
</except>

What is the difference between <nsName/> and <nsName
ns=""/> ? Does <nsName/> match any name WITH a prefix
like prefix:name, and <nsName = ns=""/> means name
WITHOUT prefix specified? Then this except clause
excludes any name, doesn't it?

I can't find any part of the specification explain this.