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| | Cover Pages: Language Identifiers in the Markup Context |
 | | (4) Defines the private use tags in ISO639, ISO15924, and ISO3166 as the mechanism for creating private use language, script, and region subtags respectively. |
 | | (6) Defines a process for handling reuse of values by ISO639, ISO15924, and ISO3166 in the event that they register a previously used value for a new purpose. |
 | | Country codes are a fundamental component of modern computing infrastructure: major operating systems, postal services, business applications, identification and security systems, to name a few. |
| xml.coverpages.org /languageIdentifiers.html (13990 words) |
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