Last modified: 2014-10-16 00:16:00 UTC

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Bug 17988 - Spaces before [[Category:]] link are ignored
Spaces before [[Category:]] link are ignored
Product: MediaWiki
Classification: Unclassified
Parser (Other open bugs)
All All
: Low trivial with 3 votes (vote)
: ---
Assigned To: Nobody - You can work on this!
: parser, patch, patch-reviewed
: 8381 16882 (view as bug list)
Depends on:
  Show dependency treegraph
Reported: 2009-03-15 10:10 UTC by Mormegil
Modified: 2014-10-16 00:16 UTC (History)
13 users (show)

See Also:
Web browser: ---
Mobile Platform: ---
Assignee Huggle Beta Tester: ---

Two-character fix (456 bytes, patch)
2009-03-15 10:10 UTC, Mormegil

Description Mormegil 2009-03-15 10:10:06 UTC
Created attachment 5930 [details]
Two-character fix

Parser.php contains a strange construct (line 1703):
$s = rtrim($s . "\n");

I would guess the added newline is just a waste of time/memory, since it gets trimmed again immediately. I believe the original author (see r8309) intended to write a comma instead of a dot.

And indeed, the line should IMHO read
$s = rtrim($s, "\n");
because at the current version, spaces before category links are ignored, so that wikitext like “Lorem [[Category:Foo]]ipsum]]” ends up showing “Loremipsum”, not “Lorem ipsum” one might expect (see the attached URL).

Not that it would be any major bug ;-)
Comment 1 Chad H. 2009-03-16 14:34:46 UTC
Cf bug 16882
Comment 2 Karun 2009-05-09 12:35:59 UTC
*** Bug 16882 has been marked as a duplicate of this bug. ***
Comment 3 Dan Jacobson 2009-05-11 22:21:14 UTC
*** Bug 8381 has been marked as a duplicate of this bug. ***
Comment 4 Alexandre Emsenhuber [IAlex] 2009-07-27 19:43:04 UTC
fixed in r53832.
Comment 5 Brion Vibber 2009-09-17 00:58:59 UTC
This caused some pages to go entirely blank... reverted in r56472.

Example self-contained test case (not totally minimized) at
Comment 6 Siebrand Mazeland 2009-10-18 10:40:15 UTC
Update keywords (-/- easy, reviewed, +need-review)
Comment 7 DieBuche 2011-04-14 17:51:50 UTC
Remove Keyword patch, it obviously didn't work
Comment 8 p858snake 2011-04-30 00:09:53 UTC
*Bulk BZ Change: +Patch to open bugs with patches attached that are missing the keyword*
Comment 9 Sumana Harihareswara 2011-11-09 19:41:04 UTC
Added the "reviewed" keyword since Mormegil received a review of the patch.  Mormegil, do you know whether the bug is still reproducible?
Comment 10 Mormegil 2011-11-09 22:11:51 UTC
(In reply to comment #9)
> Mormegil, do you know whether the bug is still reproducible?

Yes, it is. The URL linked above <> leads to a simple reproducible testcase, showing that “Lorem [[Category:Foo]]ipsum” renders as “Loremipsum” (with the Foo category added).
Comment 11 Sumana Harihareswara 2012-10-14 21:19:59 UTC
Still reproducible in master.
Comment 12 Andrey Kiselev 2013-04-04 15:37:05 UTC
Same for whitespace between two links.
Comment 13 Andrey Kiselev 2013-04-04 15:51:03 UTC
When table is not closed.


12345 aaaa [[WBC]] [[WBC]] bbb 12345
Comment 14 Aravind K N 2014-01-14 12:00:29 UTC
Is this bug resolved?
Comment 15 Bernard Burette 2014-01-17 06:57:51 UTC
(In reply to comment #14)
> Is this bug resolved?

No the bug has not been corrected, I just tested. It is still present in current MediaWiki, version "MediaWiki 1.23wmf10". See link for an example.

Comment 16 Aravind K N 2014-01-17 12:16:56 UTC
Thanks Bernard. BTW, Are the changes mentioned in comment 1 sufficient for actually fixing this?
Comment 17 Bawolff (Brian Wolff) 2014-01-18 08:30:11 UTC
To avoid confusion:

Steps to reproduce:
*Type the text "Lorem [[Category:Foo]]ipsum" into a wiki page (without quotes)
*Hit save.

Expected output is the two words "Lorem ipsum"

Actual output is a single word "Loremipsum"

The space between "Lorem" and the category tag seems to disappear.
Comment 18 Gerrit Notification Bot 2014-01-18 09:26:42 UTC
Change 108205 had a related patch set uploaded by Arav93:
Put the space before category links to consideration

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