Support linking to external docs using Doxygen tags about exhale

[jdemilledt]

TAGFILES += cppreference-doxygen-web.tag.xml=http://en.cppreference.com/w/

[svenevs]

When I try to link to STL components using the cppreference.com

Oh that sounds nice. Can you provide a brief sample code / docstring of how that is actually done with doxygen? It seems like the code being processed was some kind of class or struct that was inheriting from an STL type? I didn't know doxygen linked to this...should be fixable though.

[jdemilledt]

https://en.cppreference.com/w/Cppreference:Archives

[jdemilledt]

Doxygen automatically links based on the names defined in the tag file. For example, I have an exception type inheriting from std::exception, and Doxygen automatically links it.

[svenevs]

Ah very interesting. This may take some doing...I will see if I can patch this weekend, can you show the exact configuration you send to doxygen for the tagfile? Like do you track it locally or do you download it or other?

What I'll need to do is populate a new mapping for tagfile refids.

For now, unfortunately, you're going to need to disable the tagfile since exhale implicitly assumes every refid shows up in index.xml :/ I didn't know about these...