bug#57837: 29.0.50; fit-window-to-buffer should reposition the buffer

[Sam Steingold]

> * Eli Zaretskii <ryvm@tah.bet> [2022-09-15 22:07:15 +0300]:
>
>> From: Sam Steingold <sds@gnu.org>
>> Date: Thu, 15 Sep 2022 14:55:16 -0400
>> Cc: 57837@debbugs.gnu.org
>> 
>> > >> --8<---------------cut here---------------start------------->8---
>> > >> (and (pos-visible-in-window-p (point-min))
>> > >>      (pos-visible-in-window-p (point-max)))
>> > >> --8<---------------cut here---------------end--------------->8---
>> 
>> replacing `poing-min` and `point-max` with beginning-of-text and
>> end-of-text, of course...
>
> What are beginning-of-text and end-of-text?  I don't find such
> functions in Emacs.

I meant something like this:

--8<---------------cut here---------------start------------->8---
(defun beginning-of-text ()
  (save-excursion
    (goto-char (point-min))
    (1- (re-search-forward "[[:graph:]]" nil t))))
--8<---------------cut here---------------end--------------->8---


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