bug#3746: M-r in comint mode should use isearch

[Juri Linkov]

>> Generally, using C-u to modify behavior is a good thing but
>> not for C-r since its C-u argument runs a regular expression
>> search instead.
>
> Hm, I wonder why. ;-)
>
> I wonder why they didn't choose to have the search behavior
> (regexp vs plain) depend intelligently on the context
> (where the cursor is, what phase the moon is in,...).
> `C-u' seems so, well, primitive - actually leaving it up
> to the user to indicate explicitly what s?he means!
> Surely there is some smart way to second-guess the user
> in that case also. ;-)

If we are going to go down this road, soon we will have
only one command:

  M-x dwim RET

;-)

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