AndrewHynes/eprime-mode — pull request #3 by purcell (2014-05-08 15:10:56+00:00)
Title: Restore ?' syntax to original value

This is untested, but I think something like this is a safer way to modify the syntax table, since "." might not be the original syntax class for `?'`. Perhaps give it a whirl and see if it works for you.