Gedit

Gedit is a simple GUI code / plain text editor (written in C/Python)

There's an apertium translate plugin part of the official gedit-plugins package, should be possible to install with

   sudo apt-get install gedit gedit-plugins

if your Debian/Ubuntu is new enough.

To use gedit for editing Apertium XML:

   sudo apt-get install gedit gedit-developer-plugins
   There's an XML validation plugin at https://launchpad.net/gedit-xmltools but it only works with gedit2 

External links

• https://en.wikipedia.org/wiki/Gedit