adimit/prolog.vim — pull request #2 by borisvassilev (2013-09-23 13:23:56+00:00)
Title: Added Prolog characters (0' notation) as a constant

The change is self-explanatory, using character constants broke the syntax highlighting. The current definition (with an optional backslash for escaping tabs, newlines etc.) is very permissive but I wanted to highlight, not validate.