Hebrew
Root Zone Label Generation Rules, 4th Edition
Summary
| Version | 4 — Root Zone LGR for Hebrew |
|---|---|
| Date | |
| Tag |
und-Hebr (Hebrew)
|
| Unicode | 6.3.0 |
| Scope | DNS root zone |
| Source file | lgr-4-hebrew-script-05nov20-en.xml (9686b) |
Description
Root Zone Label Generation Rules 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-Hebrew]. This file is one of a set of LGR files that together form an integrated LGR for the DNS Root Zone [RZ-LGR-4]. The format of this file follows [RFC 7940].
Repertoire
According to Section 5, "Repertoire" in [Proposal-Hebrew], the Hebrew LGR contains 27 single 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-Hebrew].
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As part of the Root Zone, this LGR includes neither digits nor the HYPHEN-MINUS.
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-Hebrew]", this LGR defines five in-script variants, which are final forms of five in-script letters.
Variant Disposition: All variants are of type "blocked", making labels that differ only by these variants mutually exclusive: whichever label containing either of these variants is chosen earlier would be delegated, while any other equivalent label should be blocked.
This LGR does not define allocatable variants.
The specification of variants in the Root Zone LGR follows the guidelines in [RFC 8228].
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-Hebrew], the LGR does not define rules specific to the Hebrew script.
Methodology and Contributors
The Root Zone LGR for the Hebrew script was developed by the Hebrew Generation Panel. For methodology and contributors, see Sections 4 and 8 in [Proposal-Hebrew], as well as [RZ-LGR-4-Overview].
[IL-IDN] was consulted during the work on this LGR.
References
The following general references are cited in 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]
- 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
- [RFC 8228]
- A. Freytag, "Guidance on Designing Label Generation Rulesets (LGRs) Supporting Variant Labels", RFC 8228, August 2017, https://www.rfc-editor.org/info/rfc8228
- [RZ-LGR-4-Overview]
- Integration Panel, "Root Zone Label Generation Rules - LGR-4: Overview and Summary", 05 November 2020 (PDF), https://www.icann.org/sites/default/files/lgr/lgr-4-overview-05nov20-en.pdf
- [RZ-LGR-4]
- Integration Panel, "Label Generation Rules for the Root Zone — LGR-4", 05 November 2020 (XML), https://www.icann.org/sites/default/files/lgr/lgr-4-common-05nov20-en.xml
non-normative HTML presentation: https://www.icann.org/sites/default/files/lgr/lgr-4-common-05nov20-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
For references consulted particularly in designing the repertoire for the Hebrew script for the Root Zone please see details in the Table of References below. Reference [0] refers to the Unicode Standard version in which the corresponding code points were initially encoded. Reference [101] corresponds to a source given in [Proposal-Hebrew] justifying the inclusion of the corresponding code points. Entries in the table may have multiple source reference values.
Repertoire
| Glyph | Code point | Tags and context | Variants |
|---|---|---|---|
| א | U+05D0 HEBREW LETTER ALEF 0 101 |
|
|
| ב | U+05D1 HEBREW LETTER BET 0 101 |
|
|
| ג | U+05D2 HEBREW LETTER GIMEL 0 101 |
|
|
| ד | U+05D3 HEBREW LETTER DALET 0 101 |
|
|
| ה | U+05D4 HEBREW LETTER HE 0 101 |
|
|
| ו | U+05D5 HEBREW LETTER VAV 0 101 |
|
|
| ז | U+05D6 HEBREW LETTER ZAYIN 0 101 |
|
|
| ח | U+05D7 HEBREW LETTER HET 0 101 |
|
|
| ט | U+05D8 HEBREW LETTER TET 0 101 |
|
|
| י | U+05D9 HEBREW LETTER YOD 0 101 |
|
|
| ך | U+05DA HEBREW LETTER FINAL KAF 0 101 Final form |
|
כ
U+05DB
blocked
Nominal form variant
|
| כ | U+05DB HEBREW LETTER KAF 0 101 Nominal form |
|
ך
U+05DA
blocked
Final form variant
|
| ל | U+05DC HEBREW LETTER LAMED 0 101 |
|
|
| ם | U+05DD HEBREW LETTER FINAL MEM 0 101 Final form |
|
מ
U+05DE
blocked
Nominal form variant
|
| מ | U+05DE HEBREW LETTER MEM 0 101 Nominal form |
|
ם
U+05DD
blocked
Final form variant
|
| ן | U+05DF HEBREW LETTER FINAL NUN 0 101 Final form |
|
נ
U+05E0
blocked
Nominal form variant
|
| נ | U+05E0 HEBREW LETTER NUN 0 101 Nominal form |
|
ן
U+05DF
blocked
Final form variant
|
| ס | U+05E1 HEBREW LETTER SAMEKH 0 101 |
|
|
| ע | U+05E2 HEBREW LETTER AYIN 0 101 |
|
|
| ף | U+05E3 HEBREW LETTER FINAL PE 0 101 Final form |
|
פ
U+05E4
blocked
Nominal form variant
|
| פ | U+05E4 HEBREW LETTER PE 0 101 Nominal form |
|
ף
U+05E3
blocked
Final form variant
|
| ץ | U+05E5 HEBREW LETTER FINAL TSADI 0 101 Final form |
|
צ
U+05E6
blocked
Nominal form variant
|
| צ | U+05E6 HEBREW LETTER TSADI 0 101 Nominal form |
|
ץ
U+05E5
blocked
Final form variant
|
| ק | U+05E7 HEBREW LETTER QOF 0 101 |
|
|
| ר | U+05E8 HEBREW LETTER RESH 0 101 |
|
|
| ש | U+05E9 HEBREW LETTER SHIN 0 101 |
|
|
| ת | U+05EA HEBREW LETTER TAV 0 101 |
|
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.
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.
| # | 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
| Ref | Source |
|---|---|
| 0 | The Unicode Standard 1.1 |
| 101 | Omniglot, Hebrew (עברית) https://omniglot.com/writing/hebrew.htm |