I would suggest to replace the current texteditor in ROS with AkelPad http://akelpad.sf.net/
Its an open source texteditor. Like MetaPad or MS Notepad, but faster, lightweight and with full unicode support!
Its written in C and runs in ROS.
I also have talked to the developer Aleksander Shengalts.
He would be happy to support ROS.
This editor should be implemented in ROS to replace the current one.