Just curious to know how to do this, since i already know in other languages (bash, etc).

I know how to insert a character in elisp, just not sure on how to do it when it's done nth time (in succession) in elisp.

Here an example:

Basically, inserting (in file or buffer) the character X, 10 times.

XXXXXXXXXX something like that.

  • Firstly you do it (N-1) times. Then you do it one more time. – phils May 17 '20 at 3:51
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    Serious comment: I have no idea what your question is. – phils May 17 '20 at 3:52
  • My bad, let me try again: basically, you know how you can input/insert a character once in "put your language here" right? what i want to do here, is basically that, but more than once...as in, i can insert/input X character with a given number of time to input it. – Nordine Lotfi May 17 '20 at 3:58
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    Like (insert (make-string 10 ?X)) ? Or (dotimes (_ 10) (insert "X")) ? – phils May 17 '20 at 4:19
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There are many ways to write loops/iterative/repetitive behaviour in elisp.

C-hig (elisp)Iteration has the basic options, including dotimes, which is the canonical way to repeat something N times. E.g.:

(dotimes (_ 10) (insert "X"))

For the specific example of repeating a character N times, you might alternatively use make-string.

(insert (make-string 10 ?X))

For more sophisticated looping options, I suggest starting at C-hig (cl)Iteration


If you want to insert the character interactively, do C-u 10 X. This will give you XXXXXXXXXX.

This repeats the self-insert-command (here, for "X"), 10 times. See the manual node on repeating.


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