Re: isearch-query-replace-regexp and stuff

[David Kastrup <dak@gnu.org>]

Juri Linkov <juri@jurta.org> writes:

> David Kastrup <dak@gnu.org> writes:
> > Juri Linkov <juri@jurta.org> writes:
> >> The current behavior of C-M-s to repeat the non-regexp search is not
> >> the most reasonable one.  More correct would be to switch the search
> >> to regexp mode before doing the search again.  I guess it works now
> >> that way because it was simpler to implement and nobody cared about
> >> handling this case specially.  But we could change the behavior of
> >> C-M-s in non-regexp mode to switch to regexp mode for consistency
> >> with C-M-%.
> >
> > But that's inconsistent with being able to use both C-s and M-C-s in
> > regexp searches.
> >
> > Don't you see that?
> 
> You can see the following comments for `isearch-mode-map' in isearch.el
> (underlining is mine):
> 
>     ;; Define M-C-s and M-C-r like C-s and C-r so that the same key
>     ;; combinations can be used to repeat regexp isearches that can
>                                           ================
>     ;; be used to start these searches.
> 
> So the meaning of C-M-s in a non-regexp search is still undefined,

Because of some internal comment?

> and the fact that C-M-s can repeat a non-regexp search is a side
> effect of the current implementation.

If you want to call explicitly coded "consistency" a side effect.

> And there is no symmetry between normal and regexp searches

Not?  Considering that both behave the same with regard to C-s and
C-M-s I would think there was.  And intentionally so.

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum