[wp-trac] [WordPress Trac] #54699: dir, lang, and xml:lang should be global attributes supported on all tags

[WordPress Trac]

#54699: dir, lang, and xml:lang should be global attributes supported on all tags
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 Reporter:  upsuper      |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  Awaiting Review
Component:  Formatting   |    Version:
 Severity:  normal       |   Keywords:
  Focuses:               |
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 Currently in kses, `dir`, `lang`, and `xml:lang` are only supported in
 several selected elements, however, as can be found in the
 [https://html.spec.whatwg.org/multipage/dom.html#the-lang-and-xml:lang-
 attributes HTML standard], they are all global attributes and can be
 applied to any element.

 It doesn't make sense, for example, to have to write `<span lang="ja"><em>
 こんにちは</em></span>` while you can pretty much just use `<em lang="ja">
 こんにちは</em>`.

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Ticket URL: <https://core.trac.wordpress.org/ticket/54699>
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