null content depending on language

manakai-core / Whatpm / manakai-charlib / CharClass / WebHACC / Harusame / regexp

null content depending on language - TODO

Use case:

<p>
<span lang=en>English text</span>
<span lang=ja>JAPANESE TEXT</span>

<pre>
...
</pre>

<span lang=ja>... CONTINUE JAPANESE TEXT</span>
[Good Job!]