Which editors out of Emacs, Vim and JEdit support multiple simultaneous text insertion points?

Question

Background: JEdit (and some other text editors as well) support a feature called Multiple simultaneous text insertion points. (at least that\'s what I\'m callin

Answer 1

It seemed simple to do a basic version of this in Emacs lisp. This is for when you just want two places to insert text in parallel:

(defun cjw-multi-insert (text)
  "insert text at both point and mark"
  (interactive "sText:")
  (insert-before-markers text)
  (save-excursion
    (exchange-point-and-mark)
    (insert-before-markers text)))

When you run it, it prompts for text and inserts it at both point (current position) and mark. You can set the mark with C-SPC. This could be easily extended for N different positions. A function like set-insert-point would record current position (stored as an Emacs marker) into a list and then when you run the multi-insert command, it just iterates through the list adding text at each.

I'm not sure about what would a simple way to handle a more general "multi-editing" feature.