bug#10007: 24.0.50; wrong-type-argument stringp nil in *Occur*

bug#10007: 24.0.50; wrong-type-argument stringp nil in *Occur*

[Drew Adams]

emacs -Q
 
C-x d some-directory
 
M-x occur
 
In the occur buffer:
 
C-x C-q
Move cursor to a date field and hit `w'.
You get an error saying that the Dired buffer is read-only.
 
That's true, but it's not clear that this is the most helpful message at
this point.
 
Now kill the Dired buffer.  Then move the cursor to a date field in the
occur buffer and hit `w'.  You get this error, which is definitely not
the right error message here:
 
self-insert-command: Wrong type argument: stringp, nil


In GNU Emacs 24.0.50.1 (i386-mingw-nt5.1.2600)
 of 2011-09-05 on 3249CTO
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (4.5) --no-opt'
 

bug#10007: 24.0.50; wrong-type-argument stringp nil in *Occur*

[Juanma Barranquero]

On Thu, Nov 10, 2011 at 01:30, Drew Adams <drew.adams@oracle.com> wrote:

> self-insert-command: Wrong type argument: stringp, nil

I cannot reproduce it as described.

    Juanma

bug#10007: 24.0.50; wrong-type-argument stringp nil in *Occur*

[Drew Adams]

> > self-insert-command: Wrong type argument: stringp, nil
> 
> I cannot reproduce it as described.

Really?  Are you using the same build?
It's 100% reproducible here, with the build I cited, following the recipe I
described.

I forgot to mention that you must provide a pattern to `occur' that some file
names match, so the occur buffer is not empty.  Doing that, following the recipe
should give you the same behavior I reported.

What do _you_ see, when you insert a char in Occur after killing the Dired
buffer it was built from?  Try again, with the same build - I'm sure you'll see
what I described.

bug#10007: 24.0.50; wrong-type-argument stringp nil in *Occur*

[Juanma Barranquero]

On Thu, Nov 10, 2011 at 03:42, Drew Adams <drew.adams@oracle.com> wrote:

> Really?

Yes.

> Are you using the same build?

24.0.50? I've tried with the trunk, and with the 24.0.91 pretest.

> It's 100% reproducible here, with the build I cited, following the recipe I
> described.

Following your recipe, I don't see any error.

> I forgot to mention that you must provide a pattern to `occur' that some file
> names match, so the occur buffer is not empty.

Yes. I supposed as much. I'm trying in the trunk workspace, and the
pattern is "a", so there's plenty of files.

> What do _you_ see, when you insert a char in Occur after killing the Dired
> buffer it was built from?

C-h k says that "w is undefined", so typing w (or most characters) does nothing.

> Try again, with the same build - I'm sure you'll see
> what I described.

Where can I get that build?

    Juanma

bug#10007: 24.0.50; wrong-type-argument stringp nil in *Occur*

[Drew Adams]

> C-h k says that "w is undefined", so typing w (or most 
> characters) does nothing.

Hm.  Did you toggle read-only, using C-x C-q?

Not sure what you did, but it should not be undefined.  After toggling
read-only, all such chars should be bound to `self-insert-command'.  (Whether
they call all actually insert is a different matter.)  Be sure you move to, say,
a date field of Dired - out of the read-only areas (e.g. linenos), in any case.

> Where can I get that build?

Here:

> From: Christoph Scholtes Sent: Monday, November 07, 2011 8:46 PM
> To: Emacs-Devel devel Subject: emacs-20111107-r106319 Windows Binaries
> 
> The Emacs Trunk Windows Binaries (bzr revno 106319) have been 
> published in http://alpha.gnu.org/gnu/emacs/windows/
> 
> The binaries were built using the following libraries:
> giflib-4.1.4-1
> gnutls-2.10.1
> jpeg-6b-4
> libXpm-3.5.8
> libpng-1.4.3-1
> tiff-3.8.2-1
> zlib-1.2.5-2

bug#10007: 24.0.50; wrong-type-argument stringp nil in *Occur*

[Juanma Barranquero]

On Thu, Nov 10, 2011 at 15:06, Drew Adams <drew.adams@oracle.com> wrote:

> Hm.  Did you toggle read-only, using C-x C-q?

This is exactly what I did:

emacs -Q
C-x d <RET>   ; Default dir is C:\emacs\trunk
M-x occur <RET> a <RET>
C-x o      ; to go to the Occur buffer
C-x C-q
C-6 C-n   ; to go to the line containing .bzrignore
M-9 M-f   ; to go to the date
w            ; no effect
C-x k trunk <RET>
w            ; no effect

Am I doing it wrong?

> The Emacs Trunk Windows Binaries (bzr revno 106319) have been
> published in http://alpha.gnu.org/gnu/emacs/windows/

Assuming you're talking about
http://alpha.gnu.org/gnu/emacs/windows/emacs-20111107-r106319-bin-i386.zip,
AFAICS, that's 24.0.91, not 24.0.50. In any case, I don't see any
problem with that binary either.

    Juanma

bug#10007: 24.0.50; wrong-type-argument stringp nil in *Occur*

[Drew Adams]

> Am I doing it wrong?
> 
> > The Emacs Trunk Windows Binaries (bzr revno 106319) have been
> > published in http://alpha.gnu.org/gnu/emacs/windows/
> 
> Assuming you're talking about
> http://alpha.gnu.org/gnu/emacs/windows/emacs-20111107-r106319-
> bin-i386.zip,
> AFAICS, that's 24.0.91, not 24.0.50. In any case, I don't see any
> problem with that binary either.

Sorry for the noise.  No, you were not doing it wrong, and there is no such bug
- I will close this.  Thanks for testing, in any case.

I apparently was using an old Emacs 24 binary (from September 05, I think).  Not
sure how that happened.