Hi,
This looks like an interesting site for deriving various code metrics. You can register your public SVN in the site and it'll pull lots of information off.
http://www.ohloh.net
I've added the Angband license by directly copying the contents of
copying.txt from the Angband copying.txt. I hope this was the right
thing to do.
Unfortunately, it's listed under 'The Angband License' as opposed to
'Angband license'. Doh!