Behavior for xref format="ditamap"

["Don Day (LbyW)" <donday@learningbywrote.com>]

I found in one of my transforms a template for handling the syntactically valid case of <xref href="" format="ditamap"/>. Is the processing expectation for this combo defined anywhere? The 1.2 spec (3.4.2.9) defines the format="ditamap" semantic solely in terms of topicref context, not covering the xref case. Therefore this instance seems to be indeterminate. A working solution might point to a first topic in the subject map, but if a working result is not expected, implementers just need to know that it is indeterminate.

--

Don R. Day

DITA and XML Consultant, Learning by Wrote
Co-Chair, OASIS DITA Technical Committee

"Where is the wisdom we have lost in knowledge?

Where is the knowledge we have lost in information?"

--T.S. Eliot