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RFC 8228
Title: Guidance on Designing Label Generation
Rulesets (LGRs) Supporting Variant Labels
Author: A. Freytag
Status: Informational
Stream: IETF
Date: August 2017
Mailbox: asmus@unicode.org
Pages: 24
Characters: 50900
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-freytag-lager-variant-rules-06.txt
URL: https://www.rfc-editor.org/info/rfc8228
DOI: 10.17487/RFC8228
Rules for validating identifier labels and alternate representations
of those labels (variants) are known as Label Generation Rulesets
(LGRs); they are used for the implementation of identifier systems
such as Internationalized Domain Names (IDNs). This document
describes ways to design LGRs to support variant labels. In
designing LGRs, it is important to ensure that the label generation
rules are consistent and well behaved in the presence of variants.
The design decisions can then be expressed using the XML
representation of LGRs that is defined in RFC 7940.
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