Subject: Re: bug#78520: 31.0.50; Performance issue in dired+isearch with dired-isearch-filenames

From: Juri Linkov <[email-masked]>
Date: Mon, 09 Jun 2025 09:32:23 +0300

>> > 1.  In `wdired-change-to-wdired-mode', we do this:
>> >
>> > | (when wdired-search-replace-filenames
>> > |   (add-function :around (local 'isearch-search-fun-function)
>> > |                 #'dired-isearch-search-filenames
>> > |                 '((isearch-message-prefix . "filename ")))
>> > |   (setq-local replace-search-function
>> > |               (setq-local replace-re-search-function
>> > |                           (funcall isearch-search-fun-function)))
>> > |   ;; Original dired hook removes dired-isearch-search-filenames that
>> > |   ;; is needed outside isearch for lazy-highlighting in query-replace.
>> > |   (remove-hook 'isearch-mode-hook #'dired-isearch-filenames-setup t))
>> >
>> > Does that mean that after switching to wdired there is no way to switch
>> > between filename-only and normal search and replace?
>>
>> Correct.
>>
>> > Is the behavior determined when switching to wdired, or can it still
>> > be change while in wdired-mode?
>>
>> Since wdired is intended for editing filenames, we restrict
>> search/replace to filenames only.
>
> It's also possible to change permissions.  Anyway...

We have the option 'wdired-search-replace-filenames'
that can be customized to nil.