tcatm/ffmap-backend — pull request #1 by johnyb (2012-10-02 22:08:57+00:00)
Title: make ids svg friendly

This attribute is used as an id for an svg element. W3C states, these
ids must not start with a number (hence a prefix is added) and must not
contain colons.

The advantage of this is, that nodes in a document containing elements
with these ids can be selected using their id with CSS selectors. This
is not possible within the current map.

I didn’t add this change for the other ids, because I didn’t know how to test this. May be you can give me a hint on this or do it yourself?