GNU bug report logs - #14013
24.3.50; dired-isearch-filenames-regexp is matching text outside filenames

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From: Juri Linkov <juri <at> jurta.org>
To: Michael Heerdegen <michael_heerdegen <at> web.de>
Cc: 14013 <at> debbugs.gnu.org
Subject: bug#14013: 24.3.50; dired-isearch-filenames-regexp is matching text outside filenames
Date: Tue, 08 Feb 2022 21:32:44 +0200

forcemerge 14013 29215
thanks

> Michael Heerdegen <michael_heerdegen <at> web.de> writes:
>
>> Right, thanks.  Now I'm beginning to understand how this code works.
>
> BTW, one (related) thing that I found problematic over the time: I like
> to use query-replace on file names in WDired.  There is no way to match
> the beginning of the file name - right?  That's sometimes a problem.  In
> this situation it is even better to use dired-isearch-filenames -> nil
> because then I can match the space character before the beginning of the
> file name.

Like was discussed in bug#53758, xref uses ".*" to replace in results
where search/replace should be performed only within boundaries of matches.
xref uses own search function:

         (replace-re-search-function
          (lambda (from &optional _bound noerror)
            (let (found pair)
              (while (and (not found) pairs)
                (setq pair (pop pairs)
                      current-beg (car pair)
                      current-end (cdr pair))
                (goto-char current-beg)
                (when (re-search-forward from current-end noerror)
                  (setq found t)))
              found)))

So maybe Dired/WDired could use a similar function.

But in any case it seems matching at the beginning of the file name with "^"
as also requested by Drew in bug#29215 (merged) is still impossible.

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