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Bug 1955 - There is a newline within <a> tag attribute values


Summary:	There is a newline within <a> tag attribute values

Status:	RESOLVED WORKSFORME

Product:	MediaWiki
Classification:	Unclassified
Component:	Parser (Other open bugs)
Version:	unspecified
Hardware:	All All

Importance:	Low trivial with 1 vote (vote)
Target Milestone:	---
Assigned To:	Nobody - You can work on this!

URL:	http://en.wikipedia.org/wiki/Longest_...
Whiteboard:
Keywords:

Depends on:
Blocks:	tidy
	Show dependency tree / graph

Reported:	2005-04-23 11:09 UTC by Timwi
Modified:	2010-05-24 19:40 UTC (History)
CC List:	1 user (show)

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

Attachments
Add an attachment (proposed patch, testcase, etc.)

Description Timwi 2005-04-23 11:09:46 UTC

In the HTML source of pages on Wikipedia, I currently see this for section
editing links:

[<a href="
/w/index.php?title=Longest_word_in_English&amp;action=edit&amp;section=1">
edit</a>]

Notice the newline between the opening <a> tag and the word "edit".

Firefox renders this newline as a space.

This is a trivial thing, but it looks really ugly. :)

I couldn't reproduce the problem myself. I've already checked to see that the
newline isn't in [[MediaWiki:Editsection]]; it isn't.

Comment 1 Brion Vibber 2005-04-23 11:10:55 UTC

Probably a tidy issue.

Comment 2 Zigger 2005-06-25 04:25:29 UTC

(In reply to comment #1)
> Probably a tidy issue.
And it's also tidy that produces "warning" notices when doing XHTML validation
on this. ;)

Comment 3 Zigger 2005-06-25 04:53:02 UTC

Changed summary to reflect that the problem occurs with the rel, title and id
attributes, in addition to href.  Also, it seems to occur in most <a> tags, not
just the edit links.

If tidy can't be reconfigured or fixed, the problem could be avoided/reduced by
doing more line-breaks in code, as the issue seems to be that tidy favours
inserting line-breaks within the attribute value just after the opening
quotation mark instead of before the <a> tag (if there is already leading
white-space) or between attributes within the tag.

From http://www.w3.org/TR/xhtml1/#h-4.7 , it seems that browsers should strip
leading white-space from attribute values, so the reported Firefox rendering and
the tidy notifications could be wrong?

Comment 4 Zigger 2005-06-26 16:52:15 UTC

(In reply to comment #3)
>...
> From http://www.w3.org/TR/xhtml1/#h-4.7 , it seems that browsers should strip
> leading white-space from attribute values, so the reported Firefox rendering and
> the tidy notifications could be wrong?

See also http://www.w3.org/TR/xhtml1/#C_5 : "Avoid line breaks and multiple
white space characters within attribute values. These are handled inconsistently
by user agents."

Comment 5 Ævar Arnfjörð Bjarmason 2005-09-30 15:34:20 UTC

Has the problem been fixed? Tidy recently got reconfigured to not wrap lines
automatically.

Comment 6 lɛʁi לערי ריינהארט 2005-10-02 14:43:55 UTC

[[en:Longest word in English]]

now generates
[<a
href="/w/index.php?title=Longest_word_in_English&amp;action=edit&amp;section=1"
title="Longest word in English">edit</a>]

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