I'm trying to create a constraints on DITA - e.g. enforce <title> to be the first element of a section. While this was very simple to do with Relax NG I didn't manage to realize this with XSD.
Even the simple sample I found http://dita4practitioners.github.io/dit ... odule.html does not work since I'm getting a Saxon error:
I also found this tutorial http://oxygenxml.com/doc/m/dita1.2_spec ... n-xsd.html but it only removes an element. But this is not sufficient to force the title-element to be the firt child of a section!?Saxon-EE 184.108.40.206
Group p.content is not a valid restriction of the group that it redefines. Restricted type allows element u where the base type does not
Is there any known issue? Or can you maybe point me to any other sample or tutorial?
Thanks and regards,