JED is a text editor that is heavily extensible by the S-Lang programming language and library. It is available for all major operating systems, among others. JED's extensible nature allows for many plug-ins or extensions, which are called 'modes' in JED and emacs, ranging from programming language-specific keybindings to primitive web browsers. JED's git repository receives irregular updates ranging from months to weeks in between.
Features
From the JED homepage:
Color syntax highlighting on color terminals
Code folding support
Drop-down menus on all terminals and platforms
Emulates editors Emacs, EDT, WordStar, Borland, Brief
Extensible in the C-like language S-Lang, making the editor highly customizable
Can read Texinfo (GNU info) files from within JED's info browser
A variety of programming modes (with syntax highlighting) are available including C, C++, Fortran, TeX, HTML, Bourne shell (sh), Perl, Python, IDL, DIGITAL Command Language (DCL), nroff, more
Edits TeX files with AUC-TeX style editing, BibTeX support
Asynchronous subprocess support, allowing one to compile from within the editor
Built-in support for the GPM mouse driver on Linux console
Abbreviation and dynamic abbreviation modes
8-bit clean with mute/dead key support
Rectangular cut/paste; regular expressions; incremental searches; search replace across multiple files; multiple windows; multiple buffers; shell modes; directory editor (dired); mail; rmail; ispell; and much, much more.
Variants:
"jed" is the name of the console version, whether for the Windows command-box, or for any Unix-like console.
"xjed" is a thin graphical user interface (GUI) wrapper for X Window System (X).
"wjed" is a thin GUI wrapper for MS Windows.
