Hi John,

Your "reply" method seems to be starting a new thread each time...

Of course I can ignore unknown attributes, but my confusion probably comes from the wording on page 21 of GIFTI_Surface_Format.pdf, which is pretty strong in stating that those are the only attributes allowed. Consider these pieces:

"A DTD (Document Type Definition) describes the allowable elements and attributes in an XML file..."

"Each ELEMENT entry in the DTD lists a valid element name and the children allowed for the element."

"Each ATTLIST element in the DTD specifies the allowable attributes for an element."


It isn't a big deal of course. And if no one cares about this, maybe it would be enough just to add a statement that unknown attributes will be ignored. If that one validation method forces 4 more attributes, it may not be reasonable to expect to know them all.

- rick