xslide is an Emacs major mode for editing XSL stylesheets and running XSL processors.
xacc.ide is a opensource IDE aimed at mainly .NET development. It has a code editor written in 100% C# code, which is faster than most commercial offerings.
JazzScheme is a programming language based on Scheme. It is also a full featured development platform that has been used for more than 10 years to develop high-quality commercial applications.
XEmacs is a highly customizable text editor and application development system. Its emphasis is on modern graphical user interface support and an open software development model.
A bundle of lisp extensions, largely original, for GNU Emacs with the goal to obtain a more user friendly and powerful interface. The new features include contextual tool bars, new TeX interface, very complete menus, and a well structured IDE.
An emacs site-lisp setup that provides a useful package of non-standard emacs lisp extensions, extends the jde mode, adds menu commands for folding mode, buffers associated with the frames they came from and a site-start.el and default.el