bug#2058: 23.0.60; bewildering behavior when visit new file throw.pdf

bug#2058: 23.0.60; bewildering behavior when visit new file throw.pdf

[Drew Adams]

emacs -Q
 
I did C-x C-f throw.pdf, with no existing file throw.pdf. The
ensuing messages and interaction were bewildering.
 
An extremely long message appeared in the echo area:
"No image (png) support available or some conversion utility for pdf
files is missing.  Type C-c C-c to switch to an editing mode or C-c
C-t to open a buffer showing the doc as text."
 
But the new, empty file throw.pdf appeared to be visited with no
problem. I tried to type into it. That threw me back to the previous
buffer I had been in (Dired), and crazy error msgs were displayed.

I tried again, and this time I tried to type `C-c C-t', since the 
message indicated that that would open the buffer as text. That too
led to errors.
 
I don't know exactly what happened, but you will, as soon as you try
it. ;-)
 
This is the *Messages* buffer:
 
-----------8<--------------------
For information about GNU Emacs and the GNU system, type C-h C-a.
(New file)
Wrote c:/DOCUME~1/dradams/LOCALS~1/Temp/docview19729/throw.pdf
No image (png) support available or some conversion utility for pdf files is
missing.  Type C-c C-c to switch to an editing mode or C-c C-t to open a buffer
showing the doc as text.
Error during redisplay: (wrong-type-argument numberp nil) [2 times]
Quit [3 times]
(New file)
Wrote c:/DOCUME~1/dradams/LOCALS~1/Temp/docview19729/throw.pdf
No image (png) support available or some conversion utility for pdf files is
missing.  Type C-c C-c to switch to an editing mode or C-c C-t to open a buffer
showing the doc as text.
Error during redisplay: (wrong-type-argument numberp nil) [5 times]
Quit [3 times]
(New file)
Wrote c:/DOCUME~1/dradams/LOCALS~1/Temp/docview19729/throw.pdf
No image (png) support available or some conversion utility for pdf files is
missing.  Type C-c C-c to switch to an editing mode or C-c C-t to open a buffer
showing the doc as text.
Error during redisplay: (wrong-type-argument numberp nil) [4 times]
DocView: process pdf->txt changed status to exited abnormally with code 1
.
Error during redisplay: (wrong-type-argument numberp nil) [5 times]
QuitError during redisplay: (wrong-type-argument numberp nil) [2 times]
Error during redisplay: (wrong-type-argument numberp nil) [5 times]
-----------8<--------------------
 
[Note too that it shows that a temporary file was written.]
 
In GNU Emacs 23.0.60.1 (i386-mingw-nt5.1.2600) of 2009-01-04 on
 LENNART-69DE564 Windowing system distributor `Microsoft Corp.',
 version 5.1.2600 configured using `configure --with-gcc (3.4)
 --no-opt --cflags -Ic:/g/include -fno-crossjumping'
 

bug#2058: marked as done (23.0.60; bewildering behavior when visit new file throw.pdf)

[Emacs bug Tracking System]

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Your message dated Wed, 28 Jan 2009 09:18:55 +0100
with message-id <87ab9bzvv4.fsf@thinkpad.tsdh.de>
and subject line Closing that bug
has caused the Emacs bug report #2058,
regarding 23.0.60; bewildering behavior when visit new file throw.pdf
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
bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@emacsbugs.donarmstrong.com
immediately.)


-- 
2058: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=2058
Emacs Bug Tracking System
Contact owner@emacsbugs.donarmstrong.com with problems

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From: "Drew Adams" <drew.adams@oracle.com>
To: <emacs-pretest-bug@gnu.org>
Subject: 23.0.60; bewildering behavior when visit new file throw.pdf
Date: Sun, 25 Jan 2009 15:09:19 -0800
Message-ID: <004c01c97f41$f45cbd10$0200a8c0@us.oracle.com>

emacs -Q
 
I did C-x C-f throw.pdf, with no existing file throw.pdf. The
ensuing messages and interaction were bewildering.
 
An extremely long message appeared in the echo area:
"No image (png) support available or some conversion utility for pdf
files is missing.  Type C-c C-c to switch to an editing mode or C-c
C-t to open a buffer showing the doc as text."
 
But the new, empty file throw.pdf appeared to be visited with no
problem. I tried to type into it. That threw me back to the previous
buffer I had been in (Dired), and crazy error msgs were displayed.

I tried again, and this time I tried to type `C-c C-t', since the 
message indicated that that would open the buffer as text. That too
led to errors.
 
I don't know exactly what happened, but you will, as soon as you try
it. ;-)
 
This is the *Messages* buffer:
 
-----------8<--------------------
For information about GNU Emacs and the GNU system, type C-h C-a.
(New file)
Wrote c:/DOCUME~1/dradams/LOCALS~1/Temp/docview19729/throw.pdf
No image (png) support available or some conversion utility for pdf files is
missing.  Type C-c C-c to switch to an editing mode or C-c C-t to open a buffer
showing the doc as text.
Error during redisplay: (wrong-type-argument numberp nil) [2 times]
Quit [3 times]
(New file)
Wrote c:/DOCUME~1/dradams/LOCALS~1/Temp/docview19729/throw.pdf
No image (png) support available or some conversion utility for pdf files is
missing.  Type C-c C-c to switch to an editing mode or C-c C-t to open a buffer
showing the doc as text.
Error during redisplay: (wrong-type-argument numberp nil) [5 times]
Quit [3 times]
(New file)
Wrote c:/DOCUME~1/dradams/LOCALS~1/Temp/docview19729/throw.pdf
No image (png) support available or some conversion utility for pdf files is
missing.  Type C-c C-c to switch to an editing mode or C-c C-t to open a buffer
showing the doc as text.
Error during redisplay: (wrong-type-argument numberp nil) [4 times]
DocView: process pdf->txt changed status to exited abnormally with code 1
.
Error during redisplay: (wrong-type-argument numberp nil) [5 times]
QuitError during redisplay: (wrong-type-argument numberp nil) [2 times]
Error during redisplay: (wrong-type-argument numberp nil) [5 times]
-----------8<--------------------
 
[Note too that it shows that a temporary file was written.]
 
In GNU Emacs 23.0.60.1 (i386-mingw-nt5.1.2600) of 2009-01-04 on
 LENNART-69DE564 Windowing system distributor `Microsoft Corp.',
 version 5.1.2600 configured using `configure --with-gcc (3.4)
 --no-opt --cflags -Ic:/g/include -fno-crossjumping'
 




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From: Tassilo Horn <tassilo@member.fsf.org>
To: 2058-close@emacsbugs.donarmstrong.com
Subject: Closing that bug
Date: Wed, 28 Jan 2009 09:18:55 +0100
Message-ID: <87ab9bzvv4.fsf@thinkpad.tsdh.de>

Hi all,

I'm closing that bug, cause I think doc-view does TRT now.  If you don't
agree, please drop me a mail...

Bye,
Tassilo