ID for language-invariant strings
mark.davis at icu-project.org
Sat Mar 15 19:20:07 CET 2008
To me, the choice of zxx vs und depends on your goal in the particular case.
1. If the goal is to have a category for a pure 'code',non-linguistic
like an ISO script code or other tags or codes that are intended to be used
internal to programs, then 'zxx' would be appropriate.
2. If the goal is to have a category for a 'name' that is linguistic,
but meant to be some sort of neutral 'fallback' that is comprehensible by
people coming from a wide variety of linguistic backgrounds, then 'und'
would be appropriate.
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