I've run into an age-old issue but I don’t see
any off-the-shelf solutions for.
Suppose I have 2 XML documents I want to compare
(not diff, just give me yes/no are they equivalent).
This is pretty simple to do even with things
like ignoring whitespace options etc. Many tools out there, including
one I wrote
Now here's the twist …
Suppose I want to compare for XSD data model
equivalence, not XDM equivalence ?
Without type annotation these are different.
But if I declare the type for number to be xs:double
they should compare equal.
Thus a compare tool should be able to be given a
schema and do a comparison and report that these 2 documents are
equivalent at the XSD data model level.
Has anyone seen anything like this ?
Would anyone have a use for it ? (I may end up
writing it for my own uses).
Not sure how far one can take this before
entering murky waters …
Even in the numeric cases there are edge cases
where comparisons are not well defined (rounding/precision issues on
floating point numbers).
Then add in things like date/times …
But suppose I'm willing to avoid the murky edges
and just stick to the obvious cases … shouldn’t be too hard right ?
In fact I suspect its so obvious its been done but I can't find one
David A. Lee