All Rights Reserved. Please see the source code for details. There is also an optional editor, emacs , which the JAC systems have. The ones used most often are vi and emacs , which are full-screen editors. Emacs and Sun's textedit have X11 functionalities.
Editors are personal taste and pro's and con's are different for different people.
Emacs has the advantage of being available for almost all current computers types, including VAXes, is non-proprietory, and works under X11 windows as well as character based terminals. Texedit is purely X11 and best integrated with the rest of Sun's Openwindows.