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bug#25992: perform-replace leaves mark-active when not transient-mark-mo
bug#25992: perform-replace leaves mark-active when not transient-mark-mode
Mon, 06 Mar 2017 18:26:53 +0200
> Date: Sun, 05 Mar 2017 18:02:23 -0800
> From: Keith David Bershatsky <address@hidden>
> When transient-mark-mode is turned off, perform-replace leaves mark-active
> set to `t`.
> Step 1: Launch emacs -q
> Step 2: Turn off transient-mark-mode. (transient-mark-mode -1)
> Step 3: Evaluate mark-active and verify it is `nil`.
> Step 4: Run a simple perform-replace such as: (replace-regexp ";" "@" nil 1
> Step 5: Evaluate mark-active and see that it is now set `t`.
> The desired behavior is to leave `mark-active` set to `nil` if it was
> previously set to `nil`.
I'm not sure why you worry about mark-active when transient-mark-mode
is off: AFAIK that flag is only meaningful when transient-mark-mode is
on. Can you describe your use case?
Anyway, the reason for activating the mark is that replace-regexp
calls push-mark, which always activates the mark when
transient-mark-mode is turned off. Not sure why we do that, but the
code which does that has been doing it for the last 24 years, so I
don't think we should change that now, unless we have a _very_ good