bkiers/ICalParser — pull request #5 by wealdtech (2013-07-09 16:25:53+00:00)
Title: Ensure x_name adheres to RFC 5545

RFC 5545 states that a name can be made up of alphanumeric characters:

x-name = "X-" [vendorid "-"] 1*(ALPHA / DIGIT / "-")

This patches the x_name definition in the grammar to take this in to account