Author: HewlettPackard (formerly Compaq formerly DEC) Homepage: http://www.hp.com Wikipedia: http://en.wikipedia.org/wiki/EDT_text_editor Manual: http://www.openvms.compaq.com/doc/73final/6489/6489pro_020.html#edt_ch http://elvira.stacken.kth.se/rstsdoc/rsts-doc-v97/v9.7-v4a-a-aa-m476a-tk-edt-editor-manual.pdf (38MB) Family: DecFamily Platform: VAX/VMS, OpenVMS, RT-11, RSTS-E, RSX-11mPlus License: Commercial
It evolved from a LineEditor (called "si" I think) and, indeed, many operations can be performed from the command line.
There are seven versions that I know of:
The EdtKeyboardLayout is notable for its extensive use of the keyboard keypad. Historically, this is because of two reasons: First, the DEC terminals available at the time (VT100/VT52) had only four function (f-keys) available. Secondly, the DEC terminals had quite a number of keys on the keypad.
The keys used by EDT are:
(NOTE: I'm not sure about the colors to F-key mapping. feel free to correct.)
For comparison ... the ultra common PC 101 keyboards don't have the following keys:
Instead, they have:
To Start: $ EDIT FILENAME To Exit: Control-Z follow by exit and Return key.