How do I specify the left and right margins of buffers at a percentage, not a fixed value?

Question

I want to mainly margin only the left side, for example, to set the left margin to about 30% of the total width and 5% on the right side.

I'm using olivetti now but this package doesn't seem to be able to specify separately on the left and right. Is there any solution?

Is [this](https://raw.githubusercontent.com/Shynur/tmp/main/pictures/2023-3-5-0.png) what you mean by margin? — shynur, Mar 05 '23 at 09:46
It's probably set by built-in left-margin-width, your link is fringe? maybe. — roomworoof, Mar 05 '23 at 10:02

dalanicolai · Accepted Answer · 2023-03-09T12:01:21.137

1

I would say just create a custom function for it e.g.:

(defun set-window-margins-relatively (window left-fraction &optional right-fraction)
  (set-window-margins window
                      (round (* (window-width) left-fraction))
                      (when right-fraction
                        (round (* (window-width) right-fraction)))))

This function uses fractions (i.e. percentage/100) instead of percentage.

I haven't looked at Olivetti though (so I am not sure how it implemented things).

edited Mar 09 '23 at 12:01

answered Mar 05 '23 at 10:46

dalanicolai

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It worked perfectly as my purpose. Thanks! – roomworoof Mar 05 '23 at 12:32

How do I specify the left and right margins of buffers at a percentage, not a fixed value?

1 Answers1