Hebrew

Hebrew

Root Zone Label Generation Rules, 3rd Edition

Summary

Version1.1
Date
Tag und-Hebr (Hebrew)
Unicode6.3.0
ScopeDNS root zone
Source filelgr-3-hebrew-script-10jul19-en.xml (8027b)
This ruleset in other editions: 6th Edition 5th Edition 4th Edition 3rd Edition 2nd Edition 1st Edition

This ruleset is integrated into the Common (integrated set) ruleset of this release.

Description

Root Zone Label Generation Ruleset for the Hebrew Script

Overview

This file contains a set of Label Generation Rules (LGR) for the Hebrew script for the Root Zone. For more details on this LGR, see "Proposal for Hebrew Script Root Zone LGR", Version 1.2, February 2019 [Proposal]. This file is one of a set of LGR files that together form an integrated LGR for the DNS Root Zone [RZ-LGR-3]. The format of this file follows [RFC 7940].

Repertoire

According to Section 5, "Repertoire" in [Proposal], the Hebrew LGR contains 27 unique code points, 5 of which are variants (final forms) of 5 others. The repertoire supports the Hebrew and Yiddish languages with restrictions appropriate for domain names. The repertoire is based on [MSR-4], which is a subset of [Unicode 6.3].

The Hebrew script is written from right to left. More details can be found in Section 3, "Background About the Script and Languages Using it" in [Proposal].

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Each code point is tagged with the script or scripts that the code point is used with and one or more references documenting sufficient justification for inclusion in the repertoire, see "References" below. Comments provide additional information for some code points.

Variants

According to Section 6 "Variants", in "[Proposal]", this LGR defines five in-script variants, which are final forms of five in-script letters.

Whole Label Evaluation (WLE) and Context Rules

Default Whole Label Evaluation Rules and Actions

The LGR includes the set of required default WLE rules and actions applicable to the Root Zone and defined in [MSR-4]. They are marked with ⍟.

Hebrew-specific Rules

According to Section 7 "Whole Label Evaluation (WLE) Rules" in [Proposal], the LGR does not define rules specific to the Hebrew script.

Methodology and Contributors

For methodology and contributors, see Sections 4 and 8 in [Proposal], as well as [RZ-LGR-3-Overview].

[IL-IDN] was consulted during the work on this LGR.

References

The following references are cited in the first part of this document:

[MSR-4]
Integration Panel, "Maximal Starting Repertoire — MSR-4 Overview and Rationale", 25 January 2019 https://www.icann.org/en/system/files/files/msr-4-overview-25jan19-en.pdf
[Proposal]
Hebrew Generation Panel, "Proposal for a Hebrew Script Root Zone Label Generation Ruleset (LGR)", 24 April 2019, https://www.icann.org/en/system/files/files/proposal-hebrew-lgr-24apr19-en.pdf
[RFC 7940]
Davies, K. and A. Freytag, "Representing Label Generation Rulesets Using XML", RFC 7940, August 2016, http://www.rfc-editor.org/info/rfc7940
[RZ-LGR-3-Overview]
Integration Panel, "Root Zone Label Generation Rules - LGR-3: Overview and Summary", 10 July 2019 (PDF), https://www.icann.org/sites/default/files/lgr/lgr-3-overview-10jul19-en.pdf
[RZ-LGR-3]
Integration Panel, "Label Generation Rules for the Root Zone — LGR-3", 10 July 2019 (XML), https://www.icann.org/sites/default/files/lgr/lgr-3-common-10jul19-en.xml
non-normative HTML presentation: https://www.icann.org/sites/default/files/lgr/lgr-3-common-10jul19-en.html
[Unicode 6.3]
The Unicode Consortium. The Unicode Standard, Version 6.3.0, (Mountain View, CA: The Unicode Consortium, 2013. ISBN 978-1-936213-08-5) http://www.unicode.org/versions/Unicode6.3.0/
[IL-IDN]
Hebrew IDN Table for .IL https://www.iana.org/domains/idn-tables/tables/il_he_1.0.html

Repertoire

Glyph Code point Tags and context Variants
א U+05D0 HEBREW LETTER ALEF 101 Tagsc:Hebr
ב U+05D1 HEBREW LETTER BET 101 Tagsc:Hebr
ג U+05D2 HEBREW LETTER GIMEL 101 Tagsc:Hebr
ד U+05D3 HEBREW LETTER DALET 101 Tagsc:Hebr
ה U+05D4 HEBREW LETTER HE 101 Tagsc:Hebr
ו U+05D5 HEBREW LETTER VAV 101 Tagsc:Hebr
ז U+05D6 HEBREW LETTER ZAYIN 101 Tagsc:Hebr
ח U+05D7 HEBREW LETTER HET 101 Tagsc:Hebr
ט U+05D8 HEBREW LETTER TET 101 Tagsc:Hebr
י U+05D9 HEBREW LETTER YOD 101 Tagsc:Hebr
ך U+05DA HEBREW LETTER FINAL KAF 101 Final form Tagsc:Hebr כ U+05DB blocked Nominal form variant
כ U+05DB HEBREW LETTER KAF 101 Nominal form Tagsc:Hebr ך U+05DA blocked Final form variant
ל U+05DC HEBREW LETTER LAMED 101 Tagsc:Hebr
ם U+05DD HEBREW LETTER FINAL MEM 101 Final form Tagsc:Hebr מ U+05DE blocked Nominal form variant
מ U+05DE HEBREW LETTER MEM 101 Nominal form Tagsc:Hebr ם U+05DD blocked Final form variant
ן U+05DF HEBREW LETTER FINAL NUN 101 Final form Tagsc:Hebr נ U+05E0 blocked Nominal form variant
נ U+05E0 HEBREW LETTER NUN 101 Nominal form Tagsc:Hebr ן U+05DF blocked Final form variant
ס U+05E1 HEBREW LETTER SAMEKH 101 Tagsc:Hebr
ע U+05E2 HEBREW LETTER AYIN 101 Tagsc:Hebr
ף U+05E3 HEBREW LETTER FINAL PE 101 Final form Tagsc:Hebr פ U+05E4 blocked Nominal form variant
פ U+05E4 HEBREW LETTER PE 101 Nominal form Tagsc:Hebr ף U+05E3 blocked Final form variant
ץ U+05E5 HEBREW LETTER FINAL TSADI 101 Final form Tagsc:Hebr צ U+05E6 blocked Nominal form variant
צ U+05E6 HEBREW LETTER TSADI 101 Nominal form Tagsc:Hebr ץ U+05E5 blocked Final form variant
ק U+05E7 HEBREW LETTER QOF 101 Tagsc:Hebr
ר U+05E8 HEBREW LETTER RESH 101 Tagsc:Hebr
ש U+05E9 HEBREW LETTER SHIN 101 Tagsc:Hebr
ת U+05EA HEBREW LETTER TAV 101 Tagsc:Hebr

Variants

Code points grouped into sets of mutual variants. Every member of a set produces the same set of variant labels, so a registration of one has implications for all the others. Sets of a single member are omitted, as are the identity mappings RFC 7940 requires each member to declare.

5 variant sets, containing 10 variants.

Rules

Conditions evaluated against a whole label, or against the context around a single code point. The notation borrows from regular expressions: ^ and $ anchor to the start and end of a label, . matches any code point, (?= ) and (?<= ) look ahead and behind, and * and + repeat. Two symbols are specific to rulesets: ◆ is the code point being tested, and ⟨name⟩ refers to another rule.

leading-combining-mark MSR default

Default WLE rule matching labels with leading combining marks

^ ({gc:Mn} ∪ {gc:Mc})
Structure
  • ^ start
  • ({gc:Mn} ∪ {gc:Mc}) union
    • {gc:Mn} class
    • {gc:Mc} class
Referenced by 1 definition
  • action 1 (invalid)

Actions

Actions are evaluated in the order shown. The first action whose conditions match determines the disposition of the label.

Actions in precedence order
# Disposition Conditions
1 invalid label matches leading-combining-mark labels with leading combining marks are invalid MSR default
2 invalid any variant is out-of-repertoire-var any variant label with a code point out of repertoire is invalid MSR default
3 blocked any variant is blocked any variant label containing blocked variants is blocked MSR default
4 allocatable all variants are allocatable variant labels with all variants allocatable are allocatable MSR default
5 valid any label default catch all (default action) MSR default

References