------------------------------
Message: 7
Date: Fri, 16 Nov 2007 12:58:04 -0500
From: Stefan Monnier <monnier@iro.umontreal.ca>
Subject: Re: Fwd: Patch for pc-select.el
To: rms@gnu.org
Cc: emacs-devel@gnu.org
Message-ID: <jwvfxz6vzth.fsf-monnier+emacs@gnu.org>
Content-Type: text/plain; charset=us-ascii
> Would someone please DTRT with this, then ack?
Looked good to me, installed.
BTW: please try and find a way to include messages which doesn't break
patches (by quoting leading "-" into "- -").
Stefan
> ------- Start of forwarded message -------
> X-Spam-Status: No, score=0.0 required=5.0 tests=UNPARSEABLE_RELAY
> autolearn=failed version=3.1.0
> Date: Wed, 14 Nov 2007 22:18:07 +0100
> From: Martin Pohlack <mp26@os.inf.tu-dresden.de>
> MIME-Version: 1.0
> To: bug-gnu-emacs@gnu.org
> Content-Type: multipart/mixed; boundary="------------050501090105060407000103"
> Subject: Patch for pc-select.el
> This is a multi-part message in MIME format.
> - --------------050501090105060407000103
> Content-Type: text/plain; charset=ISO-8859-15
> Content-Transfer-Encoding: 7bit
> Hi,
> I tried to send the patch below to the author of pc-select.el, but his
> address is no longer valid. So I'm resending it to this address.
> - ----------------------------------------------------------------------
> Hi,
> I just recently switched to emacs (from xemacs) and found the behavior
> of pc-selection-mode (pc-select.el) a little bit irritating.
> Attached is a patch which fixes this. It basically allows using the
> shift+move selection at the same time as Ctrl-Space+Move selection mode.
> Originally, normal move operations (without shift) would disable the
> mark unconditionally, thereby disabling the region for
> Ctrl-Space-started operations.
> Cheers,
> Martin Pohlack
> - --------------050501090105060407000103
> Content-Type: text/plain;
> name="pc-select.diff"
> Content-Transfer-Encoding: 7bit
> Content-Disposition: inline;
> filename="pc-select.diff"
> This patch adds tracking whether we ourselves did activate the mark.
> If not, we should not deactivate it later on with our move functions.
> This prevents interference between manually starting a selection
> (Ctrl-Space + Move) and doing shifted moves. Both can now be used at
> the same time (as in xemacs).
> - --- /usr/share/emacs/23.0.60/lisp/emulation/pc- select.el 2007-11-06 10:12:29.000000000 +0100
> +++ pc-select.el 2007-11-14 18:05:22.000000000 +0100
> @@ -254,6 +254,10 @@
> `function-key-map' before PC Selection mode had changed that
> association.")
> +(defvar pc-select-shifted-mark nil
> + "Holds whether we ourselves did activate the mark. Only then
> + should we deactivate if later on.")
> +
> ;;;;
> ;; misc
> ;;;;
> @@ -284,7 +288,15 @@
> (defun ensure-mark()
> ;; make sure mark is active
> ;; test if it is active, if it isn't, set it and activate it
> - - (or mark-active (set-mark-command nil)))
> + (or mark-active (set-mark-command nil))
> + (setq pc-select-shifted-mark t))
> +
> +(defun maybe-deactivate-mark()
> + ;; maybe switch off mark (only if *we* switched it on)
> + (if pc-select-shifted-mark
> + (progn
> + (setq mark-active nil)
> + (setq pc-select-shifted-mark nil))))
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;
> ;;;;; forward and mark
> @@ -427,7 +439,7 @@
> "Deactivate mark; move point right ARG characters \(left if ARG negative).
> On reaching end of buffer, stop and signal error."
> (interactive "p")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (forward-char arg))
> (defun forward-word-nomark (&optional arg)
> @@ -436,13 +448,13 @@
> If an edge of the buffer is reached, point is left there
> and nil is returned."
> (interactive "p")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (forward-word arg))
> (defun forward-line-nomark (&optional arg)
> "Deactivate mark; move cursor vertically down ARG lines."
> (interactive "p")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (forward-line arg)
> (setq this-command 'forward-line)
> )
> @@ -452,7 +464,7 @@
> With argument, do it that many times. Negative arg -N means
> move backward across N balanced expressions."
> (interactive "p")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (forward-sexp arg))
> (defun forward-paragraph-nomark (&optional arg)
> @@ -464,7 +476,7 @@
> A paragraph end is the beginning of a line which is not part of the paragraph
> to which the end of the previous line belongs, or the end of the buffer."
> (interactive "p")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (forward-paragraph arg))
> (defun next-line-nomark (&optional arg)
> @@ -483,7 +495,7 @@
> Then it does not try to move vertically. This goal column is stored
> in `goal-column', which is nil when there is none."
> (interactive "p")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (with-no-warnings (next-line arg))
> (setq this-command 'next-line))
> @@ -492,14 +504,14 @@
> With argument ARG not nil or 1, move forward ARG - 1 lines first.
> If scan reaches end of buffer, stop there without error."
> (interactive "p")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (end-of-line arg)
> (setq this-command 'end-of-line))
> (defun backward-line-nomark (&optional arg)
> "Deactivate mark; move cursor vertically up ARG lines."
> (interactive "p")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (if (null arg)
> (setq arg 1))
> (forward-line (- arg))
> @@ -512,7 +524,7 @@
> Negative ARG means scroll upward.
> When calling from a program, supply a number as argument or nil."
> (interactive "P")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (cond (pc-select-override-scroll-error
> (condition-case nil (scroll-down arg)
> (beginning-of-buffer (goto-char (point-min)))))
> @@ -528,7 +540,7 @@
> Don't use this command in Lisp programs!
> \(goto-char (point-max)) is faster and avoids clobbering the mark."
> (interactive "P")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (let ((size (- (point-max) (point-min))))
> (goto-char (if arg
> (- (point-max)
> @@ -663,14 +675,14 @@
> "Deactivate mark; move point left ARG characters (right if ARG negative).
> On attempt to pass beginning or end of buffer, stop and signal error."
> (interactive "p")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (backward-char arg))
> (defun backward-word-nomark (&optional arg)
> "Deactivate mark; move backward until encountering the end of a word.
> With argument, do this that many times."
> (interactive "p")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (backward-word arg))
> (defun backward-sexp-nomark (&optional arg)
> @@ -678,7 +690,7 @@
> With argument, do it that many times. Negative arg -N means
> move forward across N balanced expressions."
> (interactive "p")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (backward-sexp arg))
> (defun backward-paragraph-nomark (&optional arg)
> @@ -693,7 +705,7 @@
> See `forward-paragraph' for more information."
> (interactive "p")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (backward-paragraph arg))
> (defun previous-line-nomark (&optional arg)
> @@ -706,7 +718,7 @@
> a semipermanent goal column to which this command always moves.
> Then it does not try to move vertically."
> (interactive "p")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (with-no-warnings (previous-line arg))
> (setq this-command 'previous-line))
> @@ -715,7 +727,7 @@
> With argument ARG not nil or 1, move forward ARG - 1 lines first.
> If scan reaches end of buffer, stop there without error."
> (interactive "p")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (beginning-of-line arg))
> (defun scroll-up-nomark (&optional arg)
> @@ -724,7 +736,7 @@
> Negative ARG means scroll downward.
> When calling from a program, supply a number as argument or nil."
> (interactive "P")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (cond (pc-select-override-scroll-error
> (condition-case nil (scroll-up arg)
> (end-of-buffer (goto-char (point-max)))))
> @@ -740,7 +752,7 @@
> Don't use this command in Lisp programs!
> \(goto-char (point-min)) is faster and avoids clobbering the mark."
> (interactive "P")
> - - (setq mark-active nil)
> + (maybe-deactivate-mark)
> (let ((size (- (point-max) (point-min))))
> (goto-char (if arg
> (+ (point-min)
> - --------------050501090105060407000103--
> ------- End of forwarded message -------
> _______________________________________________
> Emacs-devel mailing list
> Emacs-devel@gnu.org
> http://lists.gnu.org/mailman/listinfo/emacs-devel
------------------------------
_______________________________________________
Emacs-devel mailing list
Emacs-devel@gnu.org
http://lists.gnu.org/mailman/listinfo/emacs-devel
End of Emacs-devel Digest, Vol 45, Issue 144
********************************************