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One of the biggest issues with the
DecFamily of
TextEditors is that it is dependent on the Dec Lk201 layout. Especially the
TPU TextEditor. In the default KeyLayout
?, it requires keys such as "DO", "SELECT", "INSERT HERE", and "HELP".
The IbmEditorFamily tends to use a lot of FunctionKeys as well as AltOrMetaKeys. At one time, this limited portability -- today, it is common to have a KeyboardLayout that includes AltOrMetaKeys.
The ViLayout, WordStarDiamond or EmacsLayout? are more portable.
- Vi, WordStar, and Emacs all originated on systems that might have a variety of different keyboards. Some terminals used on early Unix systems, for example, didn't have arrow keys of function keys. And there was a wide variety of keyboards used on the early CP/M systems on which WordStar originated. The Vi. Emacs, and WordStar keyboard layout are keyboard independant. If you have a Control key and a QWERTY keyboard, you can use them.
- Emulators for DEC editors like EDT mapped the GOLD key and DO, SELECT, INSERT HERE and HELP keys to function keys to provide equivalent features. --DMcCunney