Root Zone LGR for script und-Geor (Georgian) | lgr-3-georgian-script-10jul19-en

This document is mechanically formatted from the above XML file for the LGR. It provides additional summary data and explanatory text. The XML file remains the sole normative specification of the LGR.

Date | 2019-07-10
LGR Version | 3
Language | und-Geor
Scope | domain: "." (Root)
Unicode Version | 6.3.0

## Table of Contents

# 1 Description

# Root Zone Label Generation Rules for the Georgian Script

## Overview

This file contains a set of Label Generation Rules for Georgian Mkhedruli (modern) for the Root Zone. For more details on this LGR and its development, see "Proposal for a Georgian Script Root Zone LGR [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

The repertoire is described in Section 5 "Repertoire" of [Proposal] and only includes the 33 code points used by languages that are actively written in the Mkhedruli alphabet. The repertoire is based on [MSR-4], which is a subset of [Unicode 6.3].

Each code point or range 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.

## Variants

According to Section 6, "Variants" in [Proposal], this LGR defines no variants.

## Character Classes

This LGR does not define character classes.

## 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 ⍟.

### Georgian-specific Rules

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

## Methodology and Contributors

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

## References

The following general references are cited in this document:

[MSR-4]
  Integration Panel, "Maximal Starting Repertoire — MSR-4 Overview and Rationale", 7 February 2019,
  https://www.icann.org/en/system/files/files/msr-4-overview-25jan19-en.pdf
[Proposal]
  Proposal for the Georgian Script Root Zone LGR, 14 November 2016,
  https://www.icann.org/en/system/files/files/proposal-georgian-lgr-24nov16-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/

For references consulted particularly in designing the repertoire for the Georgian script for the Root Zone 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] for justifying the inclusion of for the corresponding code points. Single code point or ranges may have multiple source reference values.

# 2 Repertoire

## Repertoire Summary

Number of elements in Repertoire | 33
Longest code point sequence | 1

## Repertoire by Code Point

The following table lists the repertoire by code point (or code point sequence). The data in the Script and Name column are extracted from the Unicode character database. Where a comment in the original LGR is equal to the character name, it has been suppressed.

See also the legend provided below the table.

Code Point | Glyph | Script | Name | Ref | Comment
--- | --- | --- | --- | --- | ---
U+10D0 | ა | Georgian | GEORGIAN LETTER AN | [0], [100] | Georgian
U+10D1 | ბ | Georgian | GEORGIAN LETTER BAN | [0], [100] | Georgian
U+10D2 | გ | Georgian | GEORGIAN LETTER GAN | [0], [100] | Georgian
U+10D3 | დ | Georgian | GEORGIAN LETTER DON | [0], [100] | Georgian
U+10D4 | ე | Georgian | GEORGIAN LETTER EN | [0], [100] | Georgian
U+10D5 | ვ | Georgian | GEORGIAN LETTER VIN | [0], [100] | Georgian
U+10D6 | ზ | Georgian | GEORGIAN LETTER ZEN | [0], [100] | Georgian
U+10D7 | თ | Georgian | GEORGIAN LETTER TAN | [0], [100] | Georgian
U+10D8 | ი | Georgian | GEORGIAN LETTER IN | [0], [100] | Georgian
U+10D9 | კ | Georgian | GEORGIAN LETTER KAN | [0], [100] | Georgian
U+10DA | ლ | Georgian | GEORGIAN LETTER LAS | [0], [100] | Georgian
U+10DB | მ | Georgian | GEORGIAN LETTER MAN | [0], [100] | Georgian
U+10DC | ნ | Georgian | GEORGIAN LETTER NAR | [0], [100] | Georgian
U+10DD | ო | Georgian | GEORGIAN LETTER ON | [0], [100] | Georgian
U+10DE | პ | Georgian | GEORGIAN LETTER PAR | [0], [100] | Georgian
U+10DF | ჟ | Georgian | GEORGIAN LETTER ZHAR | [0], [100] | Georgian
U+10E0 | რ | Georgian | GEORGIAN LETTER RAE | [0], [100] | Georgian
U+10E1 | ს | Georgian | GEORGIAN LETTER SAN | [0], [100] | Georgian
U+10E2 | ტ | Georgian | GEORGIAN LETTER TAR | [0], [100] | Georgian
U+10E3 | უ | Georgian | GEORGIAN LETTER UN | [0], [100] | Georgian
U+10E4 | ფ | Georgian | GEORGIAN LETTER PHAR | [0], [100] | Georgian
U+10E5 | ქ | Georgian | GEORGIAN LETTER KHAR | [0], [100] | Georgian
U+10E6 | ღ | Georgian | GEORGIAN LETTER GHAN | [0], [100] | Georgian
U+10E7 | ყ | Georgian | GEORGIAN LETTER QAR | [0], [100] | Georgian
U+10E8 | შ | Georgian | GEORGIAN LETTER SHIN | [0], [100] | Georgian
U+10E9 | ჩ | Georgian | GEORGIAN LETTER CHIN | [0], [100] | Georgian
U+10EA | ც | Georgian | GEORGIAN LETTER CAN | [0], [100] | Georgian
U+10EB | ძ | Georgian | GEORGIAN LETTER JIL | [0], [100] | Georgian
U+10EC | წ | Georgian | GEORGIAN LETTER CIL | [0], [100] | Georgian
U+10ED | ჭ | Georgian | GEORGIAN LETTER CHAR | [0], [100] | Georgian
U+10EE | ხ | Georgian | GEORGIAN LETTER XAN | [0], [100] | Georgian
U+10EF | ჯ | Georgian | GEORGIAN LETTER JHAN | [0], [100] | Georgian
U+10F0 | ჰ | Georgian | GEORGIAN LETTER HAE | [0], [100] | Georgian

Legend

Code Point
  A code point or code point sequence.
Name
  Shows the character or sequence name from the Unicode Character Database. Named sequences are listed with their normative names, for ad-hoc sequences the individual names are shown separated by “+”.
Glyph
  The shape displayed depends on the fonts available to your browser.
Script
  Shows the script property value from the Unicode Character Database. Combining marks may have the value Inherited and code points used with more than one script may have the value Common.
Ref
  Links to the references associated with the code point or sequence, if any.
Comment
  The comment as given in the XML file. However, if the comment for this row consists only of the code point or sequence name, it is suppressed in this view. By convention, comments starting with “=” denote an alias.

# 3 Variant Sets

This LGR does not specify any variants.

# 4 Classes, Rules and Actions

## 4.1 Character Classes

The following table lists all named and implicit classes with their definition and a list of their members intersected with the current repertoire (for larger classes, this list is elided).

Name | Definition | Count | Members or Ranges | Ref | Comment
--- | --- | --- | --- | --- | ---
implicit | Tag=sc:Geor | 33 | {10D0-10F0} |  | Any character tagged as Georgian

Legend

Members or Ranges
  Lists the members of the class as code points (xxx) or as ranges of code points (xxx-yyy). Any class too numerous to list in full is elided with "...".
Tag=ttt
  A named or implicit class defined by all code points that share the given tag value (ttt).
Implicit
  An anonymous class implicitly defined based on tag value.

## 4.2 Whole label evaluation and context rules

The following table lists all named rules defined in the LGR and indicates whether they are used as trigger in an action or as context (when or not-when) for a code point or variant.

Name | Regular Expression | Used as Trigger | Anchor | Used as Context | Ref | Comment
--- | --- | --- | --- | --- | --- | ---
leading-combining-mark | `(start)[∅=[[∅=\p{gc=Mn}]∪[∅=\p{gc=Mc}]]]` | ✔ |  |  |  | Default WLE rule matching labels with leading combining marks ⍟

Legend

Used as Trigger
  This rule triggers one of the actions listed below.
Used as Context
  This rule defines a required or prohibited context for a code point C or variant V.
Anchor
  This rule has a placeholder for the code point for which it is evaluated.
Regular Expression
  A regular expression equivalent to the rule, shown in a modified notation as noted:
start or end
  (start) matches the start of the label; (end) matches the end of the label.
[\p{ }] - property character set
  Set of all characters matching a given value for a Unicode property [\p{prop=val}]. Note: uppercase “\P” defines the complement of a property set.
∪, ∩, ∖, ∆ - set operators
  Sets may be combined by set operators (∪ = union, ∩ = intersection, ∖ = difference, ∆ = symmetric difference).
∅= - empty set
  Indicates that the following set is empty because of the result of set operations, or because none of its elements is part of the repertoire defined here. A rule with a non-optional empty set never matches.
⍟ - default rule
  Rules marked with ⍟ are included by default and may or may not be triggered by any possible label under this LGR.

## 4.3 Actions

The following table lists the actions that are used to assign dispositions to labels and variant labels based on the specified conditions. The order of actions defines their precedence: the first action triggered by a label is the one defining its disposition.

# | Condition | Rule / Variant Set |  | Disposition | Ref | Comment
--- | --- | --- | --- | --- | --- | ---
1 | if label matches | leading-combining-mark | → | invalid |  | labels with leading combining marks are invalid ⍟
2 | if at least one variant is in | {out-of-repertoire-var} | → | invalid |  | any variant label with a code point out of repertoire is invalid ⍟
3 | if at least one variant is in | {blocked} | → | blocked |  | any variant label containing blocked variants is blocked ⍟
4 | if each variant is in | {allocatable} | → | allocatable |  | variant labels with all variants allocatable are allocatable ⍟
5 | if any label (catch-all) |  | → | valid |  | catch all (default action) ⍟

Legend

{...} - variant type set
  In the “Rule/Variant Set” column, the notation {...} means a set of variant types.
⍟ - default action
  Actions marked with ⍟ are included by default and may or may not be triggered by any possible label under this LGR.

# 5 Table of References

[0] | The Unicode Standard 1.1 Any code point originally encoded in Unicode 1.1
[100] | Omniglot Georgian Mkhedruli, http://www.omniglot.com/writing/georgian.htm#mkhedruli