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RFC 4646 - Tags for Identifying Languages

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Tags for Identifying Languages (RFC 4646, ; obsoleted by RFC 5646)

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RFC 4646: Tags for Identifying Languages

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https://datatracker.ietf.org/doc/html/rfc4646

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IETF Datatracker

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This document describes the structure, content, construction, and semantics of language tags for use in cases where it is desirable to indicate the language used in an information object. It also describes how to register values for use in language tags and the creation of user-defined extensions for private interchange. This document, in combination with RFC 4647, replaces RFC 3066, which replaced RFC 1766. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.

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