L2/22-120R2

UTC #172 Agenda

Tuesday, July 26 to Thursday, July 28, 2022

Meeting Logistics
UTC Document Register
Unicode Technical Site

Last updated: July 28, 2022

The UTC will be conducted as a hybrid online/in-person meeting. See the meeting logistics page for details.

Many topics are organized into categories according to sub-committees or working groups that have discussed topics in advance and provided recommendations. UTC discussions for the topic categories are pre-scheduled. Specific topics within each category will be discussed within the scheduled time window. In general, the schedule for individual topics may be fluid. In certain cases, however, specific topics may be scheduled for a specific time: see Scheduled Activies below.

See the meeting logistics page for a schedule summary.

Quorum will be verified each morning and throughout the meeting. All members need to make proxy designations in advance.

Dates and times shown are Pacific Daylight time (UTC-07:00).

Scheduled Activities

The following individual topics are scheduled for discussion at specific times.

Agenda item / Topic Document Day and Time
G.2 Emoji charts ad-hoc -- Tuesday, 12:40 pm (during lunch break)
F.5 Confusables ad-hoc -- Wednesday, 12:40 pm (during lunch break)
F.2 Source Code Ad-Hoc Group report L2/22-161 Wednesday, 2:00 pm

See the meeting logistics page for a schedule summary.

Meeting Opening

Deferral to L2 chair to start L2 meeting and L2 topics.

A. Administrative Topics

Schedule: Tuesday, 10:30 am; Wednesday 9:30 am & afternoon; Thursday 9:30 am & afternoon

A.1 Consortium membership; meeting quorum and proxies

A.2 Agenda review

A.3 Approval of minutes of prior meeting [L2/22-061]

A.4 Action item review

Documents:

A.5 Calendar review [Calendar]

A.6 PRI closing dates [Public Review Issues]

A.7 L2 representatives

B. Liaison Reports & Technical Topics

B.1 JTC 1/SC 2

Schedule: Tuesday morning

SC2 topics:
  • SC2 meeting #27

    Documents:

    • SC2 Liaison Report from SC2 #27 [Peter Constable, L2/22-145]
    • Resolutions of the 27th ISO/IEC JTC 1/SC 2 Plenary Meeting [SC2 Secretariat, L2/22-144]
  • ISO/IEC 10646 Amendment 1: DAM ballot
  • ISO/IEC 10646 Amendment 2

    Documents:

    • ISO/IEC 10646 repertoire proposal post CDAM1.2 [Michel Suignard, L2/22-134]

B.2 IRG

B.3 ICU

B.4 CLDR

B.5 TC 37/SC 2

B.6 IETF / ICANN

B.7 SEI [Anderson, L2/22-129]

B.8 INFITT

C. Editorial Committee Report

Schedule: Thursday morning

C.1 Editorial Committee Report and Recommendations for UTC #172 Meeting [Whistler, L2/22-125]

Discussion led by EdComm vice-chair, Ken Whistler

Editorial topics:
  • Unicode 15.0 work
  • Website
  • Editorial Committee process
  • PRI #453, Unicode 15.0.0 Beta: Accumulated Feedback
  • Public review feedback (April 11 - July 11, 2022) routed to Editorial Committee [Rick McGowan, L2/22-123]

D. Scripts

Schedule: Tuesday, morning & early afternoon

D. 1 Recommendations to UTC #172 July 2022 on Script Proposals [Anderson, et al, L2/22-128]

Discussion led by Script Ad-Hoc chair, Debbie Anderson, and vice-chair, Roozbeh Pournader

Script topics:
  • Cyrillic: Khanty Cyrillic letter [Nikita Manulov, L2/22-119]
  • Cyrillic: Letters for Bashkir [Nikita Manulov, L2/22-154]
  • Latin: Capital and small letter I with bowl [Nikita Manulov, L2/22-118]
  • Latin: Letter S with diagonal stroke [Kirk Miller, L2/22-113]
  • Latin: Small letter barred alpha [Denis Moyogo Jacquerye, L2/22-101]
  • Latin: Small letter turned O open-O/ small letter Turned O open-O with stroke

    Documents:

    • On LATIN SMALL LETTER TURNED O OPEN-O and LATIN SMALL LETTER TURNED O OPEN-O WITH STROKE [Denis Moyogo Jacquerye, L2/20-097]
    • On TURNED O OPEN-O and TURNED O OPEN-O WITH STROKE [Michael Everson, L2/22-109]
  • Latin: Small ligature VE [Erol Çitci, L2/22-106]
  • Paleohispanic

    Documents:

    • Proposal to encode the Northern Palaeohispanic script [Joan Ferrer i Jané, et al, L2/20-146]
    • Proposal to encode the Southern Palaeohispanic script [Joan Ferrer i Jané, et al, L2/20-147]
    • Re: Palaeohispanic o [Joan Ferrer i Jané, L2/22-148]
    • Responses from experts on Palaeohispanic [Deborah Anderson, L2/20-149]
  • Arabic: Small high ligature alef with lam with yeh [Roozbeh Pournader, L2/22-104]
  • Arabic: Four Pegon characters [Rikza F. Sh., L2/22-116]
  • Arabic: Three Quranic Arabic characters [Rikza F. Sh., L2/22-153]
  • Gurung Khema

    Documents:

    • Proposal to Encode the Gurung Khema [Biswajit Mandal, L2/20-157]
    • On the encoding model of the Gurung Khema script [Eduardo Marín Silva, L2/22-132]
  • Ol Onal: Proposal to encoode [Biswajit Mandal, Jan Kučera, L2/22-151]
  • Tulu-Tigalari: Request to expedite [V Sunill Kumar, L2/22-103]
  • Batak vowel killers [see Anderson, et al, L2/22-128, section IV.8]
  • Bima: Proposal to encode [Febri Muhammad Nasrullah, L2/22-150]
  • New Tai Lue: Annotations [Eiso Chan, L2/22-105]
  • Yo Lai Tay: Preliminary proposal [Viet Khoi Nguyen, et al, L2/22-152]
  • Named sequences for Chinese Pinyin [Eiso Chan, L2/22-100]
  • Nüshu: Reference glyphs [Kushim Jiang, L2/22-138]
  • Rma: Preliminary proposal [Eiso Chan, et al, L2/22-130]
  • Seal

    Documents:

    • TCA and China Feedback on N5133 (WG2 N5133) [Shouwen Seal Experts, L2/20-139]
    • About the future extension of other versions of Shuowen Seal (WG2 N5188) [TCA, L2/22-140]
    • THX Seal glyph Correction Principles (WG2 N5189) [Selena / TCA, L2/20-141]
    • THX correction glyph summary table (WG2 N5190) [TCA / China, L2/20-142]
    • THX Property Table (WG2 N5191) (14.5MB) [TCA / China, L2/20-143]
  • Symbols: Hexadecimal digits [Eiso Chan, L2/22-131]
  • Symbols: Kodo incense linear patterns

    Documents:

    • Proposal to encode Kōdō Incense Linear Patterns [Eiso Chan, L2/22-117]
    • On the Kodo incense patterns [Eduardo Marín Silva, L2/20-155]
    • Feedback on L2/22-117 (Proposal to encode Kōdō Incense Linear Patterns) [Wang Yifan, L2/22-156]
  • Public review feedback (Jan 18, 2022 - April 11, 2022) routed to Script Ad-Hoc Group [Rick McGowan, L2/22-063]
  • Public review feedback (April 11 - July 11, 2022) routed to Script Ad-Hoc Group [Rick McGowan, L2/22-123]
  • PRI #453, Unicode 15.0.0 Beta: Accumulated Feedback
  • Public review feedback (Sept 25, 2021 - Jan 18, 2022) error report [Rick McGowan, L2/22-018]
  • Public review feedback (Sept 25, 2021 - Jan 18, 2022) routed to Properties & Algorithms Group [Rick McGowan, L2/22-063]
  • Arabic: digraphs for Kazakh [JTC1/SC2/WG2, WG2/N5194: CDAM 1.2 ballot comments and disposition]

E. CJK and Unihan

Schedule: Tuesday, later afternoon

Discussion led by CJK and Unihan Group chair, Ken Lunde

E. 1 CJK & Unihan Group Recommendations for UTC #172 Meeting [Lunde, L2/22-127]

CJK topics:

F. Properties and Algorithms

F.1 Todhri vowel encoding model

Schedule: Tuesday morning

Documents:
  • UTC #172 properties feedback & recommendations [Scherer et al, L2/22-124] (section: UCD1)
  • Todhri encoding options [Roozbeh Pournader, L2/22-074]
  • Recommendations to UTC #171 April 2022 on Script Proposals [Deborah Anderson, et al, L2/22-068] (section I.2)
  • UTC #171 Minutes, 171-C17
  • Public review feedback (April 11 - July 11, 2022) routed to Script Ad-Hoc Group [Rick McGowan, L2/22-123]
  • D. 1 Recommendations to UTC #172 July 2022 on Script Proposals [Anderson, et al, L2/22-128] (section VII.32)

F.2 Source Code Ad-Hoc Group status report [Leroy et al, L2/22-161]

Schedule: Wednesday, 2:00 pm

Discussion led by Source Code Ad-Hoc chair, Mark Davis

Topics:
  • A survey of non-XID identifier usage in program text [Robin Leroy, L2/22-102]
  • Addressing inconsistencies in UAX #31 [Robin Leroy, Mark Davis, et al, L2/22-110]
  • Working Draft Proposed Update UAX #31 Unicode Identifier and Pattern Syntax, Revision 36, Draft 6, 2022-07-21, post PRI #450 [Robin Leroy, Mark Davis, et al, L2/22-179]
  • UTC #172 properties feedback & recommendations [Scherer et al, L2/22-124] (sections: Sec2, Sec3)

F.3 UTC #172 properties feedback & recommendations [Scherer et al, L2/22-124]

Schedule: Wednesday, morning & early afternoon

Discussion led by Properties and Algorithms Group chair, Markus Scherer

P&A Topics:
  • PRI #453, Unicode 15.0.0 Beta: Accumulated Feedback
  • Redundant @missing statements
  • Core spec on default properties
  • @missing statements and binary properties
  • Bidi glyph mirroring

    Documents:

    • Public review feedback (April 11 - July 11, 2022) routed to Properties & Algorithms Group [L2/22-123]
    • Glyph mirroring: NonBidiMirroring.txt (revised) [Kent Karlsson, L2/22-026]
  • Public review feedback (April 11 - July 11, 2022) routed to Properties & Algorithms Group [L2/22-123]
  • PRI #442, Unicode 15.0 Alpha Review: Accumulated Feedback
  • PRI #449, Proposed Update UAX #9: Accumulated feedback
  • PRI #446, Proposed Update UAX #14: Accumulated feedback
  • PRI #441, Proposed Update UAX #29: Accumulated feedback

F.4 UAX #29, Unicode Text Segmentation: conformance clauses

Schedule: Wednesday, between 2:00 pm and 5:00 pm

Documents:

  • UAX #29 conformance clauses [Mark Davis, L2/22-159]
  • UTC #172 properties feedback & recommendations [Scherer et al, L2/22-124] (section: Seg7)

F.5 Security: confusables

Schedule: Wednesday, early afternoon

Documents:
  • PRI #451, Proposed Update UTS #39: Accumulated feedback
  • Response to PRI 451 [Asmus Freytag, L2/22-114]
  • Proposal to Add Data for Pairs of Confusable sequences [Asmus Freytag, L2/22-107]
  • Proposal to Add Data for Pairs of Identical sequences [Asmus Freytag, L2/22-108]
  • UTC #172 properties feedback & recommendations [Scherer et al, L2/22-124] (section: Sec1)

Confusables ad-hoc: Wednesday, 12:40 pm – 1:30 pm (during lunch break)

F.6 Emoji properties

Schedule: Wednesday, between 2:00 pm and 5:00 pm

Documents:

  • [Proposed property:] RGI_Emoji_Qualification [Mark Davis, L2/22-160]
  • UTC #172 properties feedback & recommendations [Scherer et al, L2/22-124] (section: Emoji1)

F.7 UAX #42 Unicode Character Database in XML: maintenance

Schedule: Thursday afternoon

G. Emoji

G.1 Emoji Subcommittee Report for UTC #172 (2202Q3) [ESC/Jennifer Daniel, L2/22-126]

Schedule: Wednesday morning
Discussion led by Emoji Subcommittee chair, Jennifer Daniel

Emoji Subcommittee topics:
  • Emoji intake process
  • Progress on stated goals
  • Proposed string property: RGI_Emoji_Qualification [Mark Davis, L2/22-160]
  • Future encoding strategies
  • Chart maintenance
  • PRI #454, Proposed Update UTS #51, Unicode Emoji: Accumulated feedback
  • PRI #453, Unicode 15.0.0 Beta: Accumulated feedback
  • PRI #443 Emoji 15.0 Draft Candidates: Accumulated feedback
  • Public review feedback (April 11 - July 11, 2022) routed to Emoji Subcommittee [L2/22-123]

G.2 Emoji charts ad-hoc

Schedule: Tuesday, 12:40 – 1:30 pm (during lunch break)

Discussion led by Ned Holbrook

G.3 Inline Emotes (future emoji encoding)

Schedule: Wednesday, later afternoon

Discussion led by Sean Stewart

Documents:

  • Inline Emotes Ad-Hoc Session (UTC#172) [Sean Stewart, L2/22-180]

H. Unicode 15.0 release

Schedule: Thursday, later afternoon

H.1 Unicode 15.0 & UAX updates

Unicode 15.0 component PRIs:
  • Unicode 15.0.0 Beta
  • UAX #9, Unicode Bidirectional Algorithm
    • Proposed Update UAX #9, Unicode Bidirectional Algorithm (html snapshot) [Mark Davis, L2/22-172]
    • PRI #449, Proposed Update UAX #9: Accumulated feedback
  • UAX #14, Unicode Line Breaking Algorithm
    • Proposed Update UAX #14, Unicode Line Breaking Algorithm (html snapshot) [Christopher Chapman, L2/22-169]
    • PRI #446, Proposed Update UAX #14: Accumulated feedback
  • UAX #15, Unicode Normalization Forms
    • Proposed Update UAX #15, Unicode Normalization Forms (html snapshot) [Ken Whistler, L2/22-175]
    • PRI #452, Proposed Update UAX #15: No feedback
  • UAX #24, Unicode Script Property
    • Proposed Update UAX #24, Unicode Script Property (html snapshot) [Ken Whistler, L2/22-170]
    • PRI #447, Proposed Update UAX #24: No feedback
  • UAX #29, Unicode Text Segmentation
    • Proposed Update UAX #29, Unicode Text Segmentation (html snapshot) [Christopher Chapman, L2/22-166]
    • PRI #441, Proposed Update UAX #29: Accumulated feedback
  • UAX #31 Unicode Identifier and Pattern Syntax
    • Proposed Update UAX #31 Unicode Identifier and Pattern Syntax (html snapshot) [Mark Davis, L2/22-173]
    • PRI #450, Proposed Update UAX #31: Accumulated feedback
  • UAX #34, Unicode Named Character Sequences
    • Proposed Update UAX #34, Unicode Named Character Sequences (html snapshot) [Ken Whistler, L2/22-167]
    • PRI #444, Proposed Update UAX #34: No feedback
  • UAX #38, Unicode Han Database (Unihan)
    • Proposed Update UAX #38, Unicode Han Database (Unihan) (html snapshot) [John H. Jenkins, et al, L2/22-162]
    • PRI #437, Proposed Update UAX #38: Accumulated feedback
  • UAX #41, Common References for Unicode Standard Annexes
    • Proposed Update UAX #41, Common References for Unicode Standard Annexes (html snapshot) [Ken Whistler, Rick McGowan, L2/22-171]
    • PRI #448, Proposed Update UAX #41: No feedback
  • UAX #42, Unicode Character Database in XML
    • Proposed Update UAX #42, Unicode Character Database in XML (html snapshot) [Eric Muller, L2/22-178]
    • PRI #457, Proposed Update UAX #42: No feedback
  • UAX #44, Unicode Character Database
    • Proposed Update UAX #44, Unicode Character Database (html snapshot) [ Ken Whistler, L2/22-163]
    • PRI #438, Proposed Update UAX #44: Accumulated feedback
  • UAX #45, U-source Ideographs
    • Proposed Update UAX #45, U-source Ideographs (html snapshot) [John H. Jenkins, L2/22-168]
    • PRI #445, Proposed Update UAX #45: Accumulated feedback
  • UAX #50, Unicode Vertical Text Layout
    • Proposed Update UAX #50, Unicode Vertical Text Layout (html snapshot) [Ken Lunde, Koji Ishii, L2/22-164]
    • PRI #439, Proposed Update UAX #50: No feedback

H.2 UTS #10, Unicode Collation Algorithm

  • Proposed Update UTS #10, Unicode Collation Algorithm (html snapshot) [Ken Whistler, Markus Scherer, L2/22-165]
  • PRI #440, Proposed Update UTS #10: Accumulated feedback

H.3 UTS #39, Unicode Security Mechanisms

  • Proposed Update UTS #39, Unicode Security Mechanisms (html snapshot) [Mark Davis, Michel Suignard, L2/22-174]
  • PRI #451, Proposed Update UTS #39: Accumulated feedback

H.4 UTS 46, Unicode IDNA Compatibility Processing

  • Proposed Update UTS #46, Unicode IDNA Compatibility Processing (html snapshot) [Mark Davis, Michel Suignard, L2/22-177]
  • PRI #455, Proposed Update UTS #46: No feedback

H.5 UTS #51, Unicode Emoji

I. Other business

I.1 Other feedback

Schedule: Thursday, later afternoon

  • Public review feedback (April 11 - July 11, 2022) [L2/22-123]

I.2 Post Unicode 15 planning

Schedule: Thursday morning

Meeting Adjournment