On Fri, Jan 18, 2013 at 05:22:32 -0500, Alon Levy wrote: > Hi Eric, > > I'm having trouble with the RNG approach. I've created a test rng and test xml with xmllint that can create the problem I am seeing, specifically: > > test.rng: > > <?xml version="1.0"?> > <grammar xmlns="http://relaxng.org/ns/structure/1.0"; datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes";> > <start> > <ref name="video"/> > </start> > <define name="video"> > <element name="video"> > <optional> > <element name="model"> > <attribute name="type"> > <choice> > <value>vga</value> > </choice> > </attribute> > <group> > <attribute name="type"> > <value>qxl</value> > </attribute> > <optional> > <attribute name="ram"> > </attribute> > </optional> > </group> The critical part you are missing is that the attribute type=vga and the group containing attribute type=qxl need to be within a choice element. That is: <element name="model"> <choice> <!-- this is important --> <attribute name="type"> <choice> <value>vga</value> ... </choice> </attribute> <group> <attribute name="type"> <value>qxl</value> </attribute> <optional> <attribute name="ram"/> </optional> </group> </choice> ... > <optional> > <attribute name="vram"> > </attribute> > </optional> > </element> > </optional> > </element> > </define> > </grammar> Jirka -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list