COS and ZHH language system tags

James Clark jjc at
Sun Apr 13 06:12:21 CEST 2014

The list of language system tags on the Microsoft site:


   Corsican    COS    cos

However, this entry is missing in the ISO Open Font Format standards
(2nd edition, Amendment 2 and latest CD).  As far as I can tell, "cos"
is still a perfectly good ISO 639-2 and ISO 639-3 language code, so I
wondered whether this omission was an error.

Also in Amendment 2, ZHH is described as "Chinese, Hong Kong SAR", but
in the last CD, it is described simply as "Chinese".


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