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评议开放日期: 2018 年 8 月 2 日 截止日期: 2018 年 9 月 11 日
发起组织: 全球域名分部
类别/标签: 顶级域
简介: 根区标签生成规则第二版 (RZ-LGR-2) 于 2017 年 8 月发布,整合了六种文字提案,与此同时,其他 LGR 文字提案正处在编制定稿过程中。根区标签生成规则研究小组 (RZ-LGR-SG) 的设立旨在针对根区标签生成规则 (RZ-LGR) 的技术用途进行研究并提出建议,使得这些用途得以和谐自如地在国际化域名 (IDN) 顶级域 (TLD) 的领域内进行运用。RZ-LGR-SG 现已确定了其工作范围 [PDF, 128 KB],并面向社群发布。研究小组 (SG) 正面向社群征求意见,看看现已确定的问题是否对于本研究来说具有相关性,且是否还需考量任何其他事务。RZ-LGR-SG 将审慎考量社群的意见,确定最终的工作范围,编制相关建议,并在最终定稿前将这些建议与社群进行分享。

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Domain Name System
Internationalized Domain Name ,IDN,"IDNs are domain names that include characters used in the local representation of languages that are not written with the twenty-six letters of the basic Latin alphabet ""a-z"". An IDN can contain Latin letters with diacritical marks, as required by many European languages, or may consist of characters from non-Latin scripts such as Arabic or Chinese. Many languages also use other types of digits than the European ""0-9"". The basic Latin alphabet together with the European-Arabic digits are, for the purpose of domain names, termed ""ASCII characters"" (ASCII = American Standard Code for Information Interchange). These are also included in the broader range of ""Unicode characters"" that provides the basis for IDNs. The ""hostname rule"" requires that all domain names of the type under consideration here are stored in the DNS using only the ASCII characters listed above, with the one further addition of the hyphen ""-"". The Unicode form of an IDN therefore requires special encoding before it is entered into the DNS. The following terminology is used when distinguishing between these forms: A domain name consists of a series of ""labels"" (separated by ""dots""). The ASCII form of an IDN label is termed an ""A-label"". All operations defined in the DNS protocol use A-labels exclusively. The Unicode form, which a user expects to be displayed, is termed a ""U-label"". The difference may be illustrated with the Hindi word for ""test"" — परीका — appearing here as a U-label would (in the Devanagari script). A special form of ""ASCII compatible encoding"" (abbreviated ACE) is applied to this to produce the corresponding A-label: xn--11b5bs1di. A domain name that only includes ASCII letters, digits, and hyphens is termed an ""LDH label"". Although the definitions of A-labels and LDH-labels overlap, a name consisting exclusively of LDH labels, such as"""" is not an IDN."