repeat-complex-command on current marked region

repeat-complex-command on current marked region

[Spencer Thiel]

If I use C-x ESC ESC to repeat a command, the previously marked region
shows up as an argument.  For example:
(replace-string "foo" "bar" nil 675 779)

What if I want to repeat the replacement on the current highlighted
region, rather than from 675 to 779?

This used to work as desired in emacs 20.x, but it somehow changed in
21.x.

tia,
Spencer Thiel

RE: repeat-complex-command on current marked region

[andrew.maguire]

> If I use C-x ESC ESC to repeat a command, the previously marked region
> shows up as an argument.  For example:
> (replace-string "foo" "bar" nil 675 779)
> 
> What if I want to repeat the replacement on the current highlighted
> region, rather than from 675 to 779?
> 
> This used to work as desired in emacs 20.x,
> but it somehow changed in
> 21.x.

At Emacs 20, replace-string only took three args, i.e. it did not optionally
restrict replacements to a region.

At Emacs 21, two optional args were added to provide this region capability.
Since these are optional just edit the command perhaps to:
	(replace-string "foo" "bar" nil (point) (mark))
if you want to do it on a different region.

Or, don't forget that you can use M-p and M-n in the replace-string
interactive prompt to retrieve
previously entered strings.

Or, use narrow to region first.

Andrew