Last modified: 2005-01-05 16:46:21 UTC

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Bug 1114 - "%0a" in URL is matched as a new-line
"%0a" in URL is matched as a new-line
Status: RESOLVED DUPLICATE of bug 752
Product: MediaWiki
Classification: Unclassified
Parser (Other open bugs)
All All
: Low minor (vote)
: ---
Assigned To: Nobody - You can work on this!
: parser
Depends on:
  Show dependency treegraph
Reported: 2004-12-16 13:38 UTC by Rowan Collins [IMSoP]
Modified: 2005-01-05 16:46 UTC (History)
0 users

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


Description Rowan Collins [IMSoP] 2004-12-16 13:38:08 UTC
As you should be able to see, everything below the section of discussion
referenced, including other headers, is indented as though it were prefixed with
"::". It turns out that there is a URL referenced there which ends in "%0a"
(i.e. an escaped linefeed), and this is somehow breaking the parser;
specifically, the indentation of that particular line is never closed, so
everything below it is indented to the same degree.

I've constructed a simplified test-case at,
and it seems that what's happening is that the "%0a" is being unescaped in the
'title' attribute, and then the closing "</dd></dl>" added *to that attribute*.
Presumably, the parser is spotting what is now a plain newline and taking it to
be the end of the indentation.

I'm guessing there's code somewhere that unescapes such escape sequences to make
URL title attributes more readable [the href attribute works fine]; perhaps this
needs to be confined to only unescape printable characters?
Comment 1 Zigger 2005-01-02 08:24:34 UTC
Is this a duplicate of bug 752 ?
( seems to be offline)
Comment 2 Rowan Collins [IMSoP] 2005-01-05 16:46:21 UTC
(In reply to comment #1)
> Is this a duplicate of bug 752 ?

Ah yes, so it is - I wonder why I didn't find that when searching...

*** This bug has been marked as a duplicate of 752 ***

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