Aquamacs 2.0preview5 - Emacs editor with aqua GUI (formerly Aquamacs Emacs). (Free)
Aquamacs Emacs is a Mac-like distribution of the powerful Emacs text editor. It looks and behaves like a Mac program - even though it\'s still GNU Emacs with all the extensibility that millions have come to appreciate.
Emacs is a text editor of legendary power and configurability, but it also has an enormously complex interface. Aquamacs tames the Emacs tiger: you get Apple shortcuts (in addition to the Emacs ones), nice fonts, one file per window (if wanted), international input methods, Apple Help manuals and more. Aquamacs comes with a range of modes for various markup and programming languages: HTML, C/C++, Java, Python, Perl, AppleScript, Tcl, XML, R (S)... These modes have extra functions for the languages, including excellent syntax highlighting. You can even use Aquamacs to read news and e-mail, just like any Emacs.
- bug-fixes, among them one to the bug-reporting function, and one to a problem causing crashes when a laptop's Function key was pressed.
- Compared to the latest stable release 1.9, there are a myriad of improvements.