The DOS version of the later VisualSlickEdit.
Author: SlickEdit Homepage: http://www.slickedit.com Family: MicrosoftWindowsEditors, IbmEditorFamily Platform: Windows License: Commercial
This editor was also available on OS/2 as a text mode application. Similar to an IBM internal editor called E3 in large part because it was written by the same programmer, ClarkMaurer. Another similar editor is X2.
The SlickEditorKeyboardLayout is very natural, at least to English language speakers.
Screenshot: (Flash animation)
http://www.slickedit.com/demo/high/SymbolView/SymbolView.html