bug#4807: 23.1.50; Unhelpful user visible type error in transpose-lines

bug#4807: 23.1.50; Unhelpful user visible type error in transpose-lines

[Geoff Gole]

With an argument of 0, transpose-lines will swap the lines that point
and mark are in. In a fresh buffer in which mark has not yet been set
this will result in a type error:

   (wrong-type-argument integer-or-marker-p nil)

This isn't very helpful to the user. exchange-point-and-mark fails in
the same conditions with the much clearer phrasing "No mark set in
this buffer", perhaps transpose-lines should copy that.

bug#4807: marked as done (23.1.50; Unhelpful user visible type error in transpose-lines)

[Emacs bug Tracking System]

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Your message dated Mon, 26 Oct 2009 15:59:39 +0100
with message-id <f7ccd24b0910260759o2382557cye7e11e4b8e27b2f@mail.gmail.com>
and subject line Re: bug#4807: 23.1.50; Unhelpful user visible type error in  transpose-lines
has caused the Emacs bug report #4807,
regarding 23.1.50; Unhelpful user visible type error in transpose-lines
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
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-- 
4807: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=4807
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From: Geoff Gole <geoffgole@gmail.com>
To: bug-gnu-emacs@gnu.org
Subject: 23.1.50; Unhelpful user visible type error in transpose-lines
Date: Mon, 26 Oct 2009 18:30:53 +0800
Message-ID: <f5bc73230910260330r10573ffdhc75f310808ac831c@mail.gmail.com>

With an argument of 0, transpose-lines will swap the lines that point
and mark are in. In a fresh buffer in which mark has not yet been set
this will result in a type error:

   (wrong-type-argument integer-or-marker-p nil)

This isn't very helpful to the user. exchange-point-and-mark fails in
the same conditions with the much clearer phrasing "No mark set in
this buffer", perhaps transpose-lines should copy that.



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From: Juanma Barranquero <lekktu@gmail.com>
To: Geoff Gole <geoffgole@gmail.com>
Cc: 4807-done@emacsbugs.donarmstrong.com
Subject: Re: bug#4807: 23.1.50; Unhelpful user visible type error in  transpose-lines
Date: Mon, 26 Oct 2009 15:59:39 +0100
Message-ID: <f7ccd24b0910260759o2382557cye7e11e4b8e27b2f@mail.gmail.com>

On Mon, Oct 26, 2009 at 11:30, Geoff Gole <geoffgole@gmail.com> wrote:

> This isn't very helpful to the user. exchange-point-and-mark fails in
> the same conditions with the much clearer phrasing "No mark set in
> this buffer", perhaps transpose-lines should copy that.

Fixed, thanks.

    Juanma