I updated RSyntaxTextArea in a project, tried version 2.05 and svn-trunc.
Slashes cannot be used anymore, at least in linux but a coworker had the same problem (using windows afaik)
Problem seems to be within this file:
... around this line (the whole file changed a lot since last stable release):
I\'m now using version 18.104.22.168 again which works like a charm.
I just tried RText (2.0.5) which has the same issue.