GNU bug report logs - #39512
28.0.50; Add command isearch-yank-region

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Message #59 received at 39512 <at> debbugs.gnu.org (full text, mbox):

From: Juri Linkov <juri <at> linkov.net>
To: Ergus <spacibba <at> aol.com>
Cc: Tino Calancha <tino.calancha <at> gmail.com>, npostavs <at> gmail.com,
 39512 <at> debbugs.gnu.org, contovob <at> tcd.ie, Lars Ingebrigtsen <larsi <at> gnus.org>,
 eliz <at> gnu.org, drew.adams <at> oracle.com
Subject: Re: bug#39512: 28.0.50; Add command isearch-yank-region
Date: Thu, 15 Apr 2021 23:52:03 +0300

> So without any other alternative, `M-s M-.` will be good enough. In
> general it would be better (for consistency) if we "reserve" `M-.`
> "suffixes" for future thing-at-point-or-region commands right?
>
>> In the previous message you sent a link to `ivy-thing-at-point` that
>> also uses (thing-at-point 'url) and also tries to get a filename at point.
>> Do you think `thing-at-point-or-region` should do the same?
>
> With the interactive experience in mind I think this could make sense as
> it does in `ivy-thing-at-point`.
>
> In my opinion from the api point of view, the important modification
> could be the method to know the "kind the thing" detected after calling
> the function (region, word, symbol, url) but also a function to get the
> bounds instead of the text (like bounds-of-thing-at-point-or-region).

I continued trying to do what you suggested some time ago
and immediately stumbled upon a question what "thing"
to use by default as an argument of '(thing-at-point thing)'?

Trying these priorities:

(or (thing-at-point 'region)
    (thing-at-point 'url)
    ;; (thing-at-point 'filename)
    ;; (thing-at-point 'list)
    (thing-at-point 'symbol))

has several problems:

1. There is no such "thing" as 'region'.  Maybe could be added to thingatpt.el?

2. 'url' returns nil when there is no url at point, good.  But
   'filename' returns non-nil on any string, not only on real filenames.

3. It would be nice to use (thing-at-point 'list) only when point
   is on the open/close parens.  This is how double-clicking by mouse
   selects the thing at point of mouse click.  When clicked on a paren,
   the whole list is selected by 'mouse-start-end'.
   'isearch-forward-thing-at-point' could be the same logic.

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