[jats-list] checking URIs

[Kevin Hawkins <kevin.s.hawkins@xxxxxxxxxxxxxxxxxx>]

I am interested in checking all URIs in JATS files.  Well, not all URIs. 
 I am happy to ignore a URI that might for some reason be mentioned in 
the prose of the article, but I'm interested in any actionable URIs, 
even relative URIs giving the location of, say, a graphic.

Given that scope ...

a) Is it true that all such URIs are found in @xlink:html?  Are there 
any other attributes whose value is a URI?  Or possibly an element whose 
content is supposed to be a URI?

b) Do people have suggestions on whether it's better to test that they 
resolve (a link checker), testing for well-formedness as a URI, or both? 
 That is, does anyone know of URIs that resolve using some software but 
which aren't valid according to RFC 3986?  If so, for preservation 
purposes, I think I would want to catch these.

--Kevin