Re: Is it possible to set a "goal column" for 'beginning-of-line'?

[rgb]

Herbert Euler wrote:
> Hello everyone,
>
> The command 'beginning-of-line' moves point to column 0
> by default. Is it possible to set a "goal column," so that
> this command moves point to that column, e.g. column 7,
> rather than 0? The content before such column will become
> irreachable in this situation (but it might still be displayed).
>
> In another word, is there a vertical version of narrowing
> (but perhaps don't try to hide something)?

This would do what you want globally.
I tried it and it seems dangerous.

(defun avoid-columns-1-7 ()
  (when (< (current-column) 7)
    (move-to-column 7 t)))
(add-hook 'post-command-hook 'avoid-columns-1-7)

You probably want to limit it to a mode by using a more
restrictive `when' condition like this:

(and (string= mode-name "FOO") (< (current-column) 7))

Or maybe having it look at some variable that you can toggle.