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HTML5 story update

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Kai Hendry 2009-05-04 11:08:27 +02:00
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Some elements of [HTML5](http://www.whatwg.org/specs/web-apps/current-work/multipage/) can be safely supported by ikiwiki. There are [several differences between HTML4 and HTML5](http://www.w3.org/TR/html5-diff/). Unsupported new elements _should degrade gracefully_.
Some elements of
[HTML5](http://www.whatwg.org/specs/web-apps/current-work/multipage/) can be
safely supported by ikiwiki. There are [several differences between HTML4 and
HTML5](http://www.w3.org/TR/html5-diff/).
> In the `origin/html` branch, there is an old work in progress to make
> ikiwiki use html 4 instead of xhtml. If that could be brought forward and
@ -18,30 +21,36 @@ Some elements of [HTML5](http://www.whatwg.org/specs/web-apps/current-work/multi
> html 5 branch immediatly and trying to keep that continually up-to-date
> with mainline ikiwiki that is still using xhtml. --[[Joey]]
However as an [early adopter](http://en.wikipedia.org/wiki/Early_adopter) I would like to start using HTML5 as much as possible. The more pragmatic solution would be to use elements supported by the browsers of your readership I guess. I'm following other early adopters like [Anne](http://annevankesteren.nl/) for clues on how to proceed.
>> TODO Still need to merge origin/html with my html5 branch.
* [Initial patch](http://git.webconverger.org/?p=ikiwiki;a=commit;h=2e2bb3f74f5000b1269142d6f9bdf1bcb4075ca4)
* [HTML5 branch](http://git.webconverger.org/?p=ikiwiki;h=refs/heads/html5)
* [test ikiwiki instance with HTML5 templates](http://h.dabase.com/html5/)
> I can't figure out how to pull from this repository.
>> Sorry! I have fixed the cloneurl file to read `git clone git://webconverger.org/git/ikiwiki`
# HTML5 Validation and t/html.t
I'm unsure how to turn off the test validation by the very old [wdg-html-validator](http://packages.qa.debian.org/w/wdg-html-validator.html). So I have been unable to test my initial patches as I can't build ikiwiki. I would like to know how to edit the rules/Makefile to temporarily disable this.
[validator.nu](http://validator.nu/) is the authorative HTML5 validator,
however it is almost impossible to sanely introduce as a build dependency
because of its insane Java requirements. :( I test locally via
[cURL](http://wiki.whatwg.org/wiki/IDE), though Debian packages cannot be built
with a network dependency.
> Don't run ¨make test" ... --[[Joey]]
>> I don't quite grok debhelper7 [rules](http://git.ikiwiki.info/?p=ikiwiki;a=blob;f=debian/rules).
In the future, hopefully ikiwiki can test for valid HTML5 using [Relax NG
schema](http://syntax.whattf.org/) using a Debian package tool
[rnv](http://packages.qa.debian.org/r/rnv.html).
>>> Well, ok :-) `rm t/html.t` or, add an empty `override_dh_auto_test` rule.
>>> --[[Joey]]
# Issues
[validator.nu](http://validator.nu/) incidentally is **the** HTML5 validator, however it is almost impossible to sanely introduce as a build dependency because of its insane Java requirements. :( I test locally via [cURL](http://wiki.whatwg.org/wiki/IDE), though Debian packages cannot be built with a network dependency.
## Time element
# Notes
The [time element](http://www.whatwg.org/specs/web-apps/current-work/multipage/text-level-semantics.html#the-time-element) ideally needs the datatime= attribute set by a template variable with what [HTML5 defines as a valid datetime string](http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#valid-global-date-and-time-string).
* the [time element](http://www.whatwg.org/specs/web-apps/current-work/multipage/text-level-semantics.html#the-time-element) ideally needs the datatime= attribute set with iso8601 time
* I suspect the migration to the new semantic elements of HTML5 like article, header & footer to take some time, due to browser support. Though they sure make the template code look much nicer.
* `<br>` and too many `<div>`s usually indicates poor semantics.
> YMMV, but I tend to find that kind of concern counterproductive.
> --[[Joey]]
As a workaround I use in my setup file:
* Many of the header `<span>`s should be proper [header elements](http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#the-h1,-h2,-h3,-h4,-h5,-and-h6-elements)
timeformat => '%Y-%m-%d',
## Header
Many of the header `<span>`s should be proper [header elements](http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#the-h1,-h2,-h3,-h4,-h5,-and-h6-elements)
> See [[todo/Option_to_make_title_an_h1__63__]] for why not. --[[Joey]]
The [header element](http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#the-header-element) requires a h1-h6 child, in order to [validate](http://validator.nu/). Hence in my [html5 page templates](http://git.webconverger.org/?p=ikiwiki;a=tree;f=templates;hb=refs/heads/html5), I've marked up page title with a h1.