bug#63434: 29.0.60; eww does not handle properly ruby/rt elements (e.g. Japanese furigana)

[Juri Linkov <juri@linkov.net>]

[Cc'ed to debbugs to keep the bug report actionable]

>>> eww does not properly support the ruby/rt elements in HTML.
>>
>> Shouldn't the fallback element <rp> be used for browsers without ruby support?
>>
>> https://developer.mozilla.org/en-US/docs/Web/HTML/Element/rp#without_ruby_support
>
> I think the ideal way would be to have a variable that configures the
> behaviour.
>
> In theory, the ruby is there to provide extra information to help with
> readability. But it only works if the reading medium provides support
> for placing the rt above the ruby.
>
> The simple solution would be to have a variable that:
>
> - when false, ignores the rt.
> - when true, renders it (using the fallback element if exists).
> - Otherwise, if it is a two characters string, the first char is
>    used to open the ruby and the second to close it.

I agree.  When customized to two characters, it could behave
as if the fallback element existed.