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孟加拉文根区标签生成规则 (LGR) 提案


评议开放日期: 2020 年 3 月 2 日 截止日期: 2020 年 4 月 23 日
发起组织: 全球域名分部
类别/标签: 顶级域
简介: 新婆罗米文生成专家组 (Neo-Brahmi Script Generation Panel, NBGP) 由九大社群共同组建而成。这九大社群所使用的文字均为婆罗米文派生文字。NBGP 正在为孟加拉文、梵文、古吉拉特文、果鲁穆奇文、埃纳德文、马来亚拉姆文、奥里雅文、泰米尔文和泰卢固文编制《根区标签生成规则 (Root Zone Label Generation Rules, LGR)》。在这些文字当中,八种文字的 LGR 已经得到定稿并被整合到《第 3 版根区 LGR》(RZ-LGR-3)之中。如今,余下的《孟加拉文 LGR》现已编制完成(提案支持文件)。根据 LGR 流程的规定,孟加拉文提案现面向公众发布以征询意见,使得尚未参加 NBGP 讨论的人员可以对该专家组发表自身看法。NBGP 将根据所获反馈意见,对这份提案进行定稿,并将其纳入到《根区标签生成规则》之中。

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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."