Re: Isearch in dired

[Juri Linkov <juri@jurta.org>]

> This doesn't have to be a special dired thing.  Surely it should be a
> major mode dependent hook:
>
> (defvar isearch-in-valid-region-p nil
>   "If non-nil, a function which returns non-nil if the current isearch
> match is acceptable.  It is given two parameters, the beginning and end
> of the match.")

except that such a hook already exists.  Its name is `isearch-success-function'.

> There are already several toggle keys in isearch-mode: M-r (toggle
> regexp), M-c (toggle case sensitivity), .....  So, how about C-M-z
> (toggle validation funtion)?

Currently in dired the toggle key is the same as the key that activates
filename isearch, i.e. `M-s f'.

> It's not that brilliant - in fact, it's pretty bad, but it doesn't
> shadow a useful function in the Emacs core (is C-M-z bound anywhere at
> all?) and it's no worse than C-M-w.  ;-(

`C-M-z' looks like a good more general alternative.

-- 
Juri Linkov
http://www.jurta.org/emacs/