Quote:
Originally Posted by Doitsu
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"und" would be correct in this case.
Because from the link you posted:
Quote:
When the text is non-linguistic
Use the subtag zxx when the text is known to be not in any language.
This would apply for text such as type samples, part numbers, illustrations of binary data, etc. The definition of zxx in the IANA Language Subtag Registry is 'no linguistic content'.
For example:
Code:
<p>Here is a list of part numbers: <span lang="zxx">9RUI34 8XOS12 3TYY85</span>.</p>
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so zxx is for gibberish + und is for linguistic content, but unknown what language.