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Re: Question on undefinedAttribute/Content

* Jan Algermissen <algermissen1971@xxxxxxx> [2006-10-18 10:45]:
> RFC4287 distinguishes between 'undefined' and 'extension'
> constructs. I am understanding the distinction to imply that
> conformant software should provide for handling extension
> elements, but can and should ignore any occurrences of
> undefinedAttribute or undefinedContent.
> 
> Is that understanding correct?

Yes. To be precise:

Extension constructs are any markup which the software knows to
interpret.

Undefined markup is anything it doesn’t know to interpret. In
particular, this includes any future additions to Atom itself.

Regards,
-- 
Aristotle Pagaltzis // <http://plasmasturm.org/>