https://bugzilla.wikimedia.org/show_bug.cgi?id=24529
Summary: Incrementall remove support for HTML elements removed
from or deprecated in HTML5
Product: MediaWiki
Version: unspecified
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: Normal
Component: Page rendering
AssignedTo: wikibugs-l@lists.wikimedia.org
ReportedBy: smccandl...@gmail.com
Support for the HTML elements tt, s, strike and u should be removed.
Initially, they should be deprecated in the MW major wiki (Wikipedia,
Wiktionary) documentation. Second, they should be replaced on the fly with
font-styled spans by the MW engine before reaching the user agent. Third, they
should eventually not be supported at all, after wider adoption of HTML5.
Previous discussion on the topic (with new material added at end), centralized
here:
--- Bug #671 Comment #27 from SMcCandlish <smccandl...@gmail.com> 2008-09-19
21:34:22 UTC ---
We should also be aware that the tt, s, strike, and u elements are also going
to be removed from XHTML 2 and HTML 5. The time is probably NOW to start
weaning people off of them, though of course they shouldn't simply be deleted
from MediaWiki support just yet. It would be good if these were replaced
on-the-fly with styled <span>s, though (meanwhile, <i>/'' and <b>/''' should be
left alone, as HTML 5 redefines them more narrowly and they will continue to be
used).
--- Bug #671 Comment #41 from SMcCandlish <smccandl...@gmail.com> 2010-07-22
01:29:44 UTC ---
[We] will ultimately need to ... get rid of support for the tt element
entirely, which doesn't exist in HTML 5. Here's a good discussion of this issue
(more broadly than wiki), and Googling about it turns up more:
http://lists.whatwg.org/htdig.cgi/help-whatwg.org/2009-April/000233.html
Salient quote:
Ian Hickson, Wednesday, 29 April 2009 6:44 AM:
> On Tue, 28 Apr 2009, Jim Garrison wrote:
>> I am trying to figure out the best way to replace the tt element as I
>> migrate to HTML5.
>
> Are you using tt to mark up computer code, variables, sample computer
> output, user input, for emphasis, to give a span of text in an alternate
> voice or mood, a span of text to be stylistically offset from the normal
> prose without conveying any extra importance, or something else?
This question must be asked every time a tt element is replaced (manually or
via AWB or whatever), and they WILL need to ultimately be replaced over the
next
couple of years.
--- Bug #671 Comment #43 here from Aryeh Gregor <simetrical+wikib...@gmail.com>
2010-07-22 17:24:10 UTC (In reply to comment #41) ---
> [The tt element] exists in HTML5. It's just classified as obsolete
> presentational markup, and is not valid
Noted; thanks. HTML5 keeps changing and I stopped trying to track it all quite
some time ago. Being mentioned in the standard as *invalid* presentational
markup is effectively the same thing as being "not in" the standard, however.
And it doesn't change my point about the tt element: The last thing we want is
for WP and other wikis' content, whether served by those wikis or repurposed
elsewhere, to fail validation out of laziness and cruft. MW's tt still has to
go, at least in the long run.
> We cannot remove
> support for [tt] from MediaWiki without a migration path
> to convert all existing markup somehow. But this is a totally separate bug.
No argument from me on either observation. My point is that unless this *is*
opened as a bug, it's highly unlikely that any such migration path will be
devised (although it would be a near-trivial one anyway; a simple bot could
convert these into a styled span, ignoring instances inside pre, nowiki and
angle brackets coded as numeric or named character entity references. A new
bug for this one should not be set to RESOLVED LATER or no one will do anything
to start migrating away from the dead markup.
I would suggest that tt be removed from documentation as "supported", and noted
as deprecated with all support for it eventually being removed. For several
versions (maybe several years) it should be allowed it in wikicode (i.e., in
the editing window and in saved wikicode that editors see in the editing
window), but transmogrify it on the fly into a monospaced span before it is
served to the user agent. After HTML5 is more fully accepted, tt should just
disappear.
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