.editor ¶The .editor command (usually abbreviated as .edit)
invokes an external text editor on a temporary file. You can then
put contents on that file, save it and exit the editor. At that point
poke will read the file contents, turn them into a single line and
execute them in the repl.
If poke is not running interactively, then .editor does nothing.
The editor used is identified by the EDITOR environment
variable.