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bug#28824: 26.0.90; display of pbm images broken?
From: |
Andy Moreton |
Subject: |
bug#28824: 26.0.90; display of pbm images broken? |
Date: |
Sat, 14 Oct 2017 20:03:27 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.0.90 (windows-nt) |
On Sat 14 Oct 2017, Andy Moreton wrote:
> On Sat 14 Oct 2017, Eli Zaretskii wrote:
>
>>> From: Andy Moreton <andrewjmoreton@gmail.com>
>>> Date: Sat, 14 Oct 2017 16:01:20 +0100
>>>
>>> I see problems with some PBM files from etc/images with emacs 26.0.90 on
>>> Windows. The ones that don't work appear to be those that contain a
>>> Netpbm header, e.g. back-arrow.pbm close.pbm cut.pbm fwd-arrow.pbm
>>> home.pbm
>>
>> I see no problems with those images you mention as problematic.
>>
>> Could it be a problem specific to 64-bit builds?
>
> I've tried this in a 32bit MinGW build with the same results. It appears
> to be a problem with the pbm entry in image-type-header-regexps, as
> doing (setq image-type-header-regexps '(("\\`P[1-6]" . pbm))) results in
> the problematic images displaying correctly.
>
> AndyM
The file format is described at http://netpbm.sourceforge.net/doc/pbm.html
Further testing with the images from etc/images in emacs 26 shows that
this patch appears to fix the problem:
diff --git a/lisp/image.el b/lisp/image.el
index 1d0776180b..32df508bc8 100644
--- a/lisp/image.el
+++ b/lisp/image.el
@@ -34,8 +34,8 @@ 'image-refresh
(defconst image-type-header-regexps
`(("\\`/[\t\n\r ]*\\*.*XPM.\\*/" . xpm)
("\\`P[1-6]\\(?:\
-\\(?:\\(?:#[^\r\n]*[\r\n]\\)?[[:space:]]\\)+\
-\\(?:\\(?:#[^\r\n]*[\r\n]\\)?[0-9]\\)+\
+\\(?:\\(?:#[^\r\n]*[\r\n]\\)*[[:space:]]\\)+\
+\\(?:\\(?:#[^\r\n]*[\r\n]\\)*[0-9]\\)+\
\\)\\{2\\}" . pbm)
("\\`GIF8[79]a" . gif)
("\\`\x89PNG\r\n\x1a\n" . png)
- bug#28824: 26.0.90; display of pbm images broken?, Roland Winkler, 2017/10/13
- bug#28824: 26.0.90; display of pbm images broken?, Eli Zaretskii, 2017/10/14
- bug#28824: 26.0.90; display of pbm images broken?, Andy Moreton, 2017/10/14
- bug#28824: 26.0.90; display of pbm images broken?, Eli Zaretskii, 2017/10/14
- bug#28824: 26.0.90; display of pbm images broken?, Andy Moreton, 2017/10/14
- bug#28824: 26.0.90; display of pbm images broken?,
Andy Moreton <=
- bug#28824: 26.0.90; display of pbm images broken?, Eli Zaretskii, 2017/10/14
- bug#28824: 26.0.90; display of pbm images broken?, Andy Moreton, 2017/10/14
- bug#28824: 26.0.90; display of pbm images broken?, Andy Moreton, 2017/10/14
- bug#28824: 26.0.90; display of pbm images broken?, Eli Zaretskii, 2017/10/14
bug#28824: 26.0.90; display of pbm images broken?, Roland Winkler, 2017/10/14
- bug#28824: 26.0.90; display of pbm images broken?, Andy Moreton, 2017/10/15
- bug#28824: 26.0.90; display of pbm images broken?, Eli Zaretskii, 2017/10/15
- bug#28824: 26.0.90; display of pbm images broken?, Paul Eggert, 2017/10/16
- bug#28824: 26.0.90; display of pbm images broken?, Eli Zaretskii, 2017/10/16
- bug#28824: 26.0.90; display of pbm images broken?, Roland Winkler, 2017/10/16