Julian/jsonschema — pull request #10 by mdboom (2012-04-23 21:06:43+00:00)
Title: Support for "format".

Not all of the built-in formats have been implemented. "color" and "style" require most of a CSS parser. "uri" and "email" are really tricky to get exactly right, and the stdlib tools for this aren't so great.

At this point, though, it would be nice to get a discussion around how this is done. I'm starting to use this in my own work (which has custom formats for astronomy-specific things) and it would be nice to include the support for this upstream.