jEdit is a programmer's text editor written in Java.
Kile is a feature-rich LaTeX editor
Save time and effort of converting into Unicode through native2ascii
A powerful editor and graphical debugger for code written in Scilab
Vim-like editing in Eclipse
Simple text editor written in Lazarus
VTL (Velocity Template Language) edit support for the NetBeans IDE.
Turn gVim into a Crestron SIMPL+ IDE.
PHP Support for GNU Emacs