[Bug 27475] Examples: illustrate difference between bdo and bdi

https://www.w3.org/Bugs/Public/show_bug.cgi?id=27475

--- Comment #6 from Lina Kemmel <lkemmel@il.ibm.com> ---
(In reply to Richard Ishida from comment #4)
> Not sure what is the status of this bug, but for the earlier contributors
> who were trying to understand the difference between dir, bdi and bdo you
> can find explanations at
> https://www.w3.org/International/articles/inline-bidi-markup/
> 
> (I also just added some extra text to help clarify the difference between
> bdi and bdo.)

For BDO itself, I think it is also worth to illustrate the difference between
|bdo dir='ltr'| and |bdo dir='rtl'|:

Both allow to override the standard behavior, but:
  - |bdo dir=ltr| causes the enclosed characters to be treated as strong LTR
characters,
  - |bdo dir=rtl| causes the enclosed characters to be treated as strong RTL
characters.
========
Also, only BDO is usually associated with "overriding the UBA" (e.g. in
https://html.spec.whatwg.org/multipage/semantics.html#the-bdo-element).

But, actually, all explicit directional formatting characters and their
equivalents do "override" the UBA ... well, probably not "[just] UBA", but the
"standard implicit UBA" - since the directional formatting characters
themselves are part of the standard.

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Received on Sunday, 24 July 2016 12:54:21 UTC