That's understandable, but maddening. Why are scripts that control/operate with an editor limited to the particular choice of the editor? Back in the Amiga days

That's understandable, but maddening. Why are scripts that control/operate with an editor limited to the particular choice of the editor? Back in the Amiga days, useful things had an ARexx port, and while that meant most scripting was done in ARexx itself anything could send commands and get information back via those ports. You could write scripts in assembler, BASIC, or whatever variant language you wanted.