Stefan Monnier wrote:
>> One possibility is of course bind it to C-x w h in isearch, like in
>> hi-lock-mode. Could that possible disturb?
> 
> C-x exits isearch, so it would be difficult to do.


If highlight-regexp was always bound to C-x w h then something like the 
simple patched attached could be used. Of course the test for 
`last-command' could be made a bit more pretty ...

Why is not C-x w h always bound to higlight-regexp?