Armenian (script)

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Label Generation Rules for the Armenian Script

Overview

This document specifies a set of Label Generation Rules (LGR) for the Armenian script for the second level domain or domains identified above. The starting point for the development of this LGR can be found in the related Root Zone LGR [RZ-LGR-Armn]. The format of this file follows [RFC 7940]. This LGR is adapted from the “Reference LGR for the Second Level for the Armenian Script” [Ref-LGR-und-Armn], for details, see Change History below.

For details and additional background on the Armenian script, see “Proposal for a Armenian Script Root Zone LGR” [Proposal-Armenian].

Repertoire

According to [Proposal-Armenian], the repertoire contains the 38 code points in the range U+0561–U+0586 and supports the Armenian language as written in the Armenian script. The repertoire is a subset of [Unicode 11.0.0]. For details, see Section 5, “Repertoire” in [Proposal-Armenian]. (The proposal cited has been adopted for the Armenian script portion of the Root Zone LGR.)

For the second level, the repertoire has been augmented with the ASCII digits, U+0030 to U+0039, plus U+002D HYPHEN-MINUS, for a total of 49 repertoire elements.

Any code points outside the Armenian Script repertoire that are targets for out-of-repertoire variants would be included here only if the variant is listed in this file. In this case they are identified as a reflexive (identity) variant of type “out-of-repertoire-var”. Whether or not they are listed, they do not form part of the repertoire.

Repertoire Listing: Each code point or range is tagged with the script or scripts with which the code point is used and one or more other character categories. For each repertoire element, one or more references document sufficient justification for inclusion in the repertoire; see the “References” below. For code points in the repertoire, comments identify the language using the code point.

Variants

This LGR defines no in-script variants within the Armenian script.

The variants defined in this LGR are limited to those required for use in zones not shared with any other script. As such, this LGR does not define cross-script variants. However, using this LGR concurrently with any LGR for Latin, Greek, and Cyrillic in the same zone will introduce some in-script variants due to cross-script variant transitivity. This will also create potential cross-script issues when used with the same LGRs. For details, see Section 6, “Variants” in [Proposal-Armenian]. Mitigation of these in-script and cross-script variants can be addressed by using the Common LGR. For details, see Section 3, “Use of Multiple Reference LGRs in the Same Zone” in [Level-2-Overview]. In addition to variants defined by this LGR, the full variant information related to this script and added by concurrent use with the Latin, Greek, and Cyrillic LGR(s) can be found in the following LGR: [Ref-LGR-Latin-Full-Variant-Script]

In particular, the Armenian LGR will inherit the following in-script variant as result of concurrent use with the Latin and Greek LGRs:

• Blocked: U+0572 — U+0578.

This variant is required when using this LGR together with the Common LGR in label processing, but it also reflects a certain consistency in the approach to variants across typographically related scripts. The variant can be removed if using this LGR strictly as standalone.

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 labels should be blocked. There is no preference among these labels.

This LGR does not define allocatable variants.

The specification of variants in this LGR follows the guidelines in [RFC 8228].

Character Classes

This LGR does not define named character classes.

Whole Label Evaluation (WLE) and Context Rules

Default Whole Label Evaluation Rules

By default, the LGR includes the rules and actions to implement the following restrictions mandated by the IDNA protocol. They are marked with ⍟.

• Hyphen Restrictions — restrictions on the allowable placement of hyphens (no leading/ending hyphen and no hyphen in positions 3 and 4). These restrictions are described in Section 4.2.3.1 of RFC 5891 [150]. They are implemented here as context rule on U+002D (-) HYPHEN-MINUS.
• Leading Combining Marks — restrictions on the allowable placement of combining marks (no leading combining mark). This rule is described in Section 4.2.3.2 of RFC 5891 [150].

Armenian-specific Rules

This LGR does not define rules specific to the Armenian script.

Actions

This LGR includes the default actions for LGRs as well as the action needed to invalidate labels with misplaced combining marks. They are marked with ⍟. For a description see [RFC 7940].

Methodology and Contributors

The LGR in this document has been adapted from the corresponding Reference LGR for the Second Level. The Second Level Reference LGR for the Armenian Script was developed by Michel Suignard and Asmus Freytag, based on the Root Zone LGR for the Armenian script and information contained or referenced therein; see [RZ-LGR-Armn]. Suitable extensions for the second level have been applied according to the [Guidelines] and with community input. The original proposal for a Root Zone LGR for the Armenian script, that this LGR is based on, was developed by the Armenian Generation Panel. For more information on methodology and contributors to the underlying Root Zone LGR, see Sections 4 and 8 in [Proposal-Armenian], as well as [RZ-LGR-Overview].

Changes from Version Dated 25 October 2024

Adopted from the Second Level Reference LGR for the Armenian Script [Ref-LGR-und-Armn] without normative changes.

References

The following general references are cited in this document:

[Guidelines]

ICANN, “Guidelines for Developing Reference LGRs for the Second Level”, (Los Angeles, California: ICANN, 27 May 2020), https://www.icann.org/en/system/files/files/lgr-guidelines-second-level-27may20-en.pdf

[Level-2-Overview]

Internet Corporation for Assigned Names and Numbers, (ICANN),“Reference Label Generation Rules (LGR) for the Second Level: Overview and Summary” (PDF), (Los Angeles, California: ICANN, 25 October 2024), https://www.icann.org/en/system/files/files/level2-lgr-overview-summary-25oct24-en.pdf

[MSR-5]

Integration Panel, “Maximal Starting Repertoire — MSR-5 Overview and Rationale”, 24 June 2021, https://www.icann.org/en/system/files/files/msr-5-overview-24jun21-en.pdf

[Proposal-Armenian]

Armenian Generation Panel, “Proposal for an Armenian Script Root Zone LGR”, 5 November 2015, https://www.icann.org/en/system/files/files/armenian-lgr-proposal-05nov15-en.pdf

[Ref-LGR-und-Armn]

ICANN, Second Level Reference Label Generation Rules for the Armenian Script (und-Armn), 25 October 2024 (XML) https://www.icann.org/sites/default/files/packages/lgr/lgr-second-level-armenian-script-25oct24-en.xml non-normative HTML presentation: https://www.icann.org/sites/default/files/packages/lgr/lgr-second-level-armenian-script-25oct24-en.html

[Ref-LGR-Latin-Full-Variant-Script]

ICANN, Second Level Reference Label Generation Rules for the Latin Script (und-Latn), 25 October 2024 (XML) https://www.icann.org/sites/default/files/packages/lgr/lgr-second-level-latin-full-variant-script-25oct24-en.xml non-normative HTML presentation: https://www.icann.org/sites/default/files/packages/lgr/lgr-second-level-latin-full-variant-script-25oct24-en.html

[RZ-LGR-Armn]

ICANN, Root Zone Label Generation Rules for the Armenian Script (und-Armn), 26 May 2022 (XML) https://www.icann.org/sites/default/files/lgr/rz-lgr-5-armenian-script-26may22-en.xml

[RZ-LGR-Overview]

Integration Panel, “Root Zone Label Generation Rules (RZ LGR-5): Overview and Summary”, 26 May 2022 (PDF), https://www.icann.org/sites/default/files/lgr/rz-lgr-5-overview-26may22-en.pdf

[RZ-LGR-5]

Integration Panel, “Root Zone Label Generation Rules (RZ-LGR-5)”, 26 May 2022 (XML), https://www.icann.org/sites/default/files/lgr/rz-lgr-5-common-26may22-en.xml
non-normative HTML presentation: https://www.icann.org/sites/default/files/lgr/rz-lgr-5-common-26may22-en.html

[RFC 7940]

Davies, K. and A. Freytag, “Representing Label Generation Rulesets Using XML”, RFC 7940, August 2016, https://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

[Unicode 11.0.0]

The Unicode Consortium. The Unicode Standard, Version 11.0.0, (Mountain View, CA: The Unicode Consortium, 2018. ISBN 978-1-936213-19-1) https://www.unicode.org/versions/Unicode11.0.0/

For references consulted particularly in designing the repertoire for the Armenian Script for the second level please see details in the Table of References below.

Reference [0] refers to the Unicode Standard version in which corresponding code points were initially encoded. Reference [100] corresponds to a source given in [Proposal-Armenian] for justifying the inclusion of for the corresponding code points. Single code points or ranges may have multiple source reference values.