Editing NonPortableKeyLayout
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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
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