Home

Contact Us

General

Initiative B@bel

WSI Guidelines

Encoding

Principles

Unicode

Training

Tutorials

PUA

Conversion

Resources

Utilities

TECkit

Maps

Resources

Input

Principles

Utilities

Tutorials

Resources

Type Design

Principles

Design Tools

Formats

Resources

Font Downloads

Gentium

Doulos

IPA

Rendering

Principles

Technologies

OpenType

Graphite

Resources

Font FAQ

Links

Glossary


Computers & Writing Systems

SIL HOME | SIL SOFTWARE | SUPPORT | DONATE | PRIVACY POLICY

You are here: Encoding > Unicode
Short URL: https://scripts.sil.org/PCUnicodeDocs

SIL Unicode proposals and other standards-related documents

NRSI staff, 2009-01-20

These are various documents we have written for Unicode proposals and other matters related to development of the Unicode Standard.


Recent Documents

Preliminary Proposal to Encode Additional Ethiopic Characters

Preliminary proposal to encode Beria Giray Erfe (or Beria Branding Script) (=L2/08-265)

Proposal to encode a Tifinagh punctuation character (=L2/08-198, WG2/n3482)

Request to document glyph variants (=L2/08-034)

Proposal to Encode Additional Latin and Cyrillic Characters (=L2/08-182, WG2/n3481)

Proposal to encode Devanagari Sign High Spacing Dot (added 2006-04-20)

Unified Tai (Viet Thai) Unicode Proposal (added 2005-09-22, revised 2006-01-28)

Arabic character usage notes (added 2005-04-21)

Lanna Unicode proposal (added 2005-04-25, revised 2005-03-05) (=L2/05-095)


Unicode Proposals

Arabic

Notes on some Unicode Arabic characters: recommendations for usage
Jonathan Kew, 2005-04-21
Download "ArabicLetterUsageNotes.pdf", Acrobat PDF document, 218KB [17455 downloads]

Notes on recommended practice for use of extended Arabic codepoints in relation to a number of languages/writing systems; draft document for discussion and review.

Beria

Preliminary proposal to encode Beria (revised) (=L2/08-265)
Lorna Priest, 2008-08-20
Download "Beriav6.pdf", Acrobat PDF document, 677KB [4231 downloads]
Preliminary proposal to encode Beria Giray Erfe (or Beria Branding Script) (=L2/08-265)
Lorna Priest, 2008-07-29
Download "BeriaBrandingv1.pdf", Acrobat PDF document, 677KB [2731 downloads]

Biblical Greek, Biblical Hebrew

AppCopticEieProposal.pdf
Peter Constable, 2003-06-13
Download "AppCopticEieProposal.pdf", Acrobat PDF document, 521KB [3351 downloads]

Proposal to Encode Coptic Letter Eie for Use in Textual Apparatus (=L2/03-208)

SamPentSignProposal.pdf
Peter Constable, 2003-06-13
Download "SamPentSignProposal.pdf", Acrobat PDF document, 263KB [5751 downloads]

Proposal to Encode Samaritan Pentateuch Sign (=L2/03-206)

PapyrusSignComments.pdf
Peter Constable, 2003-06-11
Download "PapyrusSignComments.pdf", Acrobat PDF document, 1MB [7109 downloads]

Papyrus Sign: Comments on L2/03-194 (= L2/03-201)

BibHebAltCharsProposal.pdf
Peter Constable, 2003-06-10
Download "BibHebAltCharsProposal.pdf", Acrobat PDF document, 1MB [4744 downloads]

Proposal to Encode Alternative Characters for Biblical Hebrew—(revised 2003-6-10) (= L2/03-195r)

Cyrillic

Most current (2008-07-26):  WG2/N3481

Proposal to Encode Additional Latin and Cyrillic Characters (=L2/08-182)
Lorna A. Priest, 2008-05-06
Download "L208-182.pdf", Acrobat PDF document, 855KB [2736 downloads]

Proposal to Encode Additional Cyrillic Characters
Lorna A. Priest, 2005-08-09
Download "N2933.pdf", Acrobat PDF document, 828KB [7002 downloads]

Proposal to Encode Additional Cyrillic Characters (=L2/05-080R, WG2/N2933)

YupikCyrillicProposal.pdf
Peter Constable, 2002-12-07
Download "YupikCyrillicProposal.pdf", Acrobat PDF document, 805KB [3004 downloads]

Proposal for Encoding Additional Cyrillic Characters for Siberian Yupik (= L2/02-452)

Devanagari

Proposal to encode Devanagari Sign High Spacing Dot
Jonathan Kew, 2006-04-20
Download "DevanagariHighSpacingDot.pdf", Acrobat PDF document, 2MB [4952 downloads]

Proposal to encode Devanagari Sign High Spacing Dot

DevGlottalProposal.pdf
Peter Constable, 2003-06-02
Download "DevGlottalProposal.pdf", Acrobat PDF document, 984KB [3873 downloads]

Proposal for Encoding Devanagari Glottal Stop (revision of UTC/L2 02-394, WG2/N2543)

Ethiopic

Accepted by UTC #118:

Proposal to Encode Additional Ethiopic Characters (=L2/09-050R, N3572)
Lorna A. Priest, 2009-02-05
Download "n3572.pdf", Acrobat PDF document, 2MB [2627 downloads]

Submitted with the expectation that there will be revision:

Proposal to Encode Additional Ethiopic Characters (v 11)
Lorna A. Priest, 2009-01-26
Download "EthiopicGMO_BST_GUKv11.pdf", Acrobat PDF document, 2MB [2386 downloads]

This proposal has not been submitted yet. We are looking for feedback.

Preliminary Proposal to Encode Additional Ethiopic Characters (v 10)
Lorna A. Priest, 2009-01-20
Download "EthiopicGMO_BST_GUKv10.pdf", Acrobat PDF document, 2MB [2327 downloads]

Preliminary Proposal to Encode Additional Ethiopic Characters (v 8)
Lorna A. Priest, 2008-12-05
Download "EthiopicGMO_BST_GUKv8.pdf", Acrobat PDF document, 5MB [3014 downloads]

Lanna

LannaUnicode.pdf
Martin Hosken, 2005-05-03
Download "MH_Lanna_050503.pdf", Acrobat PDF document, 179KB [6029 downloads]

Proposal to encode the Lanna script in Unicode. (revised 2005-05-03) (=L2/05-095)

Latin

Proposal to Encode Additional Latin and Cyrillic Characters (=L2/08-182)
Lorna A. Priest, 2008-05-06
Download "L208-182.pdf", Acrobat PDF document, 855KB [2736 downloads]
(Revised) Request to document glyph variants (=L2/08-034R)
Lorna A. Priest, 2008-05-06
Download "L208-034R.pdf", Acrobat PDF document, 2MB [3001 downloads]
Request to document glyph variants (=L2/08-034)
Lorna A. Priest, 2008-01-22
Download "L208-034.pdf", Acrobat PDF document, 2MB [3129 downloads]

Request to document glyph variants (=L2/08-034)

Proposal to encode two phonetic characters and two Shona characters
Lorna A. Priest, 2007-10-22
Download "L207-334R.pdf", Acrobat PDF document, 639KB [3345 downloads]

Proposal to encode two phonetic characters and two Shona characters (=L2/07-334R)

Glyph corrections for U+027F and U+0285 in TUS
Lorna A. Priest and Greg Aumann, 2007-01-12
Download "027F_0285.pdf", Acrobat PDF document, 4MB [3313 downloads]

Glyph corrections for U+027F and U+0285 in TUS (=L2/07-022)

Proposal to Encode Additional Orthographic and Modifier Characters (Revised)
Peter G. Constable and Lorna A. Priest, 2006-10-31
Download "L206-259R.pdf", Acrobat PDF document, 767KB [3165 downloads]

Proposal to Encode Additional Orthographic and Modifier Characters (revised 2006-10-31) (= L2/06-259‎R)

Proposal to Encode Modifier Letter Low Circumflex Accent‎ (Revised)
Lorna A. Priest, 2006-09-05
Download "AkhaLahu_Proposal.pdf", Acrobat PDF document, 1MB [2841 downloads]
Proposal to Encode Modifier Letter Low Circumflex Accent‎
Lorna A. Priest, 2006-07-20
Download "AkhaLahu_proposal.pdf", Acrobat PDF document, 1MB [2745 downloads]

Proposal to Encode Modifier Letter Low Circumflex Accent‎ (= L2/06-244, WG2/N3140)

Proposal to Encode Additional Latin Phonetic and Orthographic Characters
Lorna A. Priest & Peter G. Constable, 2005-08-09
Download "N2931.pdf", Acrobat PDF document, 1MB [3566 downloads]

Proposal to Encode Additional Latin Phonetic and Orthographic Characters (= L2/05-097R, WG2/N2945)

Proposal to Encode Additional Latin Orthographic Characters for Uighur Latin Alphabet
Lorna A. Priest, 2005-02-21
Download "LtnOrth_L2-05-029.pdf", Acrobat PDF document, 657KB [4180 downloads]

Proposal to Encode Additional Latin Orthographic Characters for Uighur Latin Alphabet (= L2/05-029, WG2/N2931)

OrthoGlottalStopProp.pdf
Peter Constable, 2004-02-01
Download "OrthoGlottalStopProp.pdf", Acrobat PDF document, 327KB [4074 downloads]

Proposal to Encode Orthographic Glottal Stops in the UCS (= L2/04-065)

Phonetics

Use of CGJ in Latin script.pdf
Bob Hallissy, 2005-04-19
Download "Use of CGJ in Latin script.pdf", Acrobat PDF document, 62KB [3474 downloads]

Use of Combining Grapheme Joiner (CGJ) to encode diacritic above double-wide diacritics (= L2/05-094)

Revised Proposal to Encode Chinantec Tone Marks
Lorna A. Priest, 2004-12-10
Download "ChinantecTone_L2-04-349R.pdf", Acrobat PDF document, 464KB [3130 downloads]

Revised Proposal to Encode Chinantec Tone Marks (revision of L2/04-349 = replaces part of L2/04-246R)

Revised Proposal to Encode Additional Latin Orthographic Characters
Lorna A. Priest, 2004-12-10
Download "ltnorth_l2-04-372r.pdf", Acrobat PDF document, 1MB [4546 downloads]

Revised Proposal to Encode Additional Latin Orthographic Characters (revision of L2/04-372)

LtnPhonOrth_L2-04-246R.pdf
Lorna A. Priest, 2004-08-23
Download "LtnPhonOrth_L2-04-246R.pdf", Acrobat PDF document, 2MB [4767 downloads]

Proposal to Encode Additional Latin Phonetic and Orthographic Characters in the UCS (revision of L2/04-246 = L2/04-348, WG2/N2847)

n2740_ProposalToEncodeAdditionalPhoneticCharacters.pdf
Peter Constable, 2004-04-19
Download "n2740_ProposalToEncodeAdditionalPhoneticCharacters.pdf", Acrobat PDF document, 3MB [3534 downloads]

Proposal to Add Additional Phonetic Symbols to the UCS (= WG2/N2740)

04044_AddModLtr_Rev.pdf
Peter Constable, 2004-02-01
Download "04044_AddModLtr_Rev.pdf", Acrobat PDF document, 2MB [5582 downloads]

Revised Proposal to Encode Additional Phonetic Modifier Letters in the UCS (= L2/04-044)

04045_PalHookChars_Rev.pdf
Peter Constable, 2004-02-01
Download "04045_PalHookChars_Rev.pdf", Acrobat PDF document, 758KB [4349 downloads]

Revised Proposal to Encode Phonetic Symbols with Palatal Hook in the UCS (= L2/04-045)

04046_RetrHookChars_Rev.pdf
Peter Constable, 2004-02-01
Download "04046_RetrHookChars_Rev.pdf", Acrobat PDF document, 356KB [4141 downloads]

Revised Proposal to Encode Phonetic Symbols with Retroflex Hook in the UCS (= L2/04-046)

04047_AddPhonSymbols_Rev.pdf
Peter Constable, 2004-02-01
Download "04047_AddPhonSymbols_Rev.pdf", Acrobat PDF document, 541KB [4807 downloads]

Revised Proposal to Encode Additional Phonetic Symbols in the UCS (= L2/04-047)

n2646_CommentsOnN2626.pdf
Peter Constable, 2003-10-09
Download "n2646_CommentsOnN2626.pdf", Acrobat PDF document, 794KB [3843 downloads]

Comments on N2626 — Proposal on IPA Extensions (= L2/03-339, WG2/N2646)

PresnOfToneContours.pdf
Peter Constable, 2003-06-14
Download "PresnOfToneContours.pdf", Acrobat PDF document, 37KB [2994 downloads]

Presentation of tone contours encoded as UCS tone letter sequences (= L2/01-025, WG2/N2312)

AddlPhonSymbolsProposal.pdf
Peter Constable, 2003-06-08
Download "AddlPhonSymbolsProposal.pdf", Acrobat PDF document, 3MB [5196 downloads]

Proposal to Encode Additional Phonetic Modifier Letters in the UCS—(Final version, 2003-6-7) (= L2/03-180r)

MidTildeCharsProposal.pdf
Peter Constable, 2003-06-06
Download "MidTildeCharsProposal.pdf", Acrobat PDF document, 1MB [4925 downloads]

Proposal to Encode Additional Phonetic Symbols in the UCS (revised 2003-6-9) (= L2/03-190r)

AddlModLtrsProposal.pdf
Peter Constable, 2003-06-07
Download "AddlModLtrsProposal.pdf", Acrobat PDF document, 6MB [4701 downloads]

Proposal to Encode Phonetic Symbols with Middle Tilde in the UCS (revised 2006-6-6) (= L2/03-174r)

PalHkCharsProposal.pdf
Peter Constable, 2003-06-06
Download "PalHkCharsProposal.pdf", Acrobat PDF document, 2MB [4495 downloads]

Proposal to Encode Phonetic Symbols with Palatal Hook in the UCS (revised 2003-6-6) (= L2/03-169r)

RetrHkCharsProposal.pdf
Peter Constable, 2003-05-30
Download "RetrHkCharsProposal.pdf", Acrobat PDF document, 251KB [4854 downloads]

Proposal to Encode Phonetic Symbols with Retroflex Hook in the UCS (= L2/03-170)

MiddleTildeProposalToWG2.pdf
Peter Constable, 2003-10-01
Download "MiddleTildeProposalToWG2.pdf", Acrobat PDF document, 570KB [3852 downloads]

Proposal to WG2 for Encoding Phonetic Symbols with Middle Tilde (= WG2/N2632)

Syloti Nagri

SNProposalToWG2.pdf
Peter Constable, 2003-06-12
Download "SNProposalToWG2.pdf", Acrobat PDF document, 271KB [3616 downloads]

Proposal to WG2 for Encoding Syloti Nagri Script in the BMP (= WG2/N2591)

RevSNProposal.pdf
Peter Constable, 2003-05-10
Download "RevSNProposal.pdf", Acrobat PDF document, 183KB [3312 downloads]

Revised Proposal for Encoding Syloti Nagri Script in the BMP (revised 2003-6-9) (=L2/03-151r)

Tai Lue

n2660_CommentsOnN2634.pdf
Peter Constable, 2003-10-17
Download "n2660_CommentsOnN2634.pdf", Acrobat PDF document, 678KB [4866 downloads]

Comments on N2634 — Proposal to encode the Tai Lue script (= WG2/N2660)

Tifinagh

Most current (2008-07-26):  WG2/N3482

Proposal to encode a Tifinagh punctuation character (=L2/08-198)
Lorna A. Priest and Jon Coblentz, 2008-05-06
Download "L208-198.pdf", Acrobat PDF document, 495KB [3539 downloads]

Unified Tai (Viet Thai)

Current Proposal

April 2007 WG2 Submission
Jim Brase, 2008-02-26
Download "N3220.pdf", Acrobat PDF document, 1MB [3539 downloads]
2007 Proposal to add the Tay Viet script to Unicode
Jim Brase, 2007-01-30
Download "tayvietproposal2007-02-06.pdf", Acrobat PDF document, 900KB [3072 downloads]

2006 Proposal

2006 Proposal to Add the Unified Tai Script to Unicode (rejected)
Jim Brase, 2007-02-02
Download "UnifiedTaiProposal.pdf", Acrobat PDF document, 786KB [6080 downloads]

For additional information, see the research documents below.

Research Documents — for high-bandwidth connections

Writing Tai Don, Additional characters needed for the Tai Viet script
Jim Brase, 2008-10-20
Download "WritingTaiDon.pdf", Acrobat PDF document, 991KB [4174 downloads]

This paper explores the differences between the writing of the Tai Dam, Tai Don, and Jinping Dai languages, or dialects. It makes the assumption that the Tai Don and Jinping scripts will be unified with the Tai Viet script, and seeks to make a determination of what Tai Don or Jinping characters need to be added to the Tai Viet character repertoire in order to write those languages.

Towards a Unified Tai (Viet Thai) Unicode Proposal - plus Character Set and Writing Samples
Jim Brase, 2006-01-27
Download "TowardsUnicodeProposalTai_All.pdf", Acrobat PDF document, 3MB [3835 downloads]

Description of the Tai languages and writing system; reasons for choosing the proposed character set and comments on selected characters; plus proposed character set and writing samples. For review and feedback — Please respond to the e-mail address provided in the document.

Research Documents — for low-bandwidth connections

Note

The following documents contain the same content as the one above, but are broken into smaller files for the benefit of those with low-speed connections.

Towards a Unified Tai (Viet Thai) Unicode Proposal
Jim Brase, 2006-01-27
Download "TowardsUnicodeProposalTai.pdf", Acrobat PDF document, 443KB [4245 downloads]

Description of the Tai languages and writing system; reasons for choosing the proposed character set and comments on selected characters; for review and feedback — Please respond to the e-mail address provided in the document.

Unified Tai Character Set
Jim Brase, 2006-01-27
Download "TaiScriptCharSet.pdf", Acrobat PDF document, 292KB [3401 downloads]

Proposed character set; comments on some characters

Comparison of Tai Script Consonants
Jim Brase, 2006-01-27
Download "TaiScriptByPhoneme_Consonants.pdf", Acrobat PDF document, 1MB [3305 downloads]
Comparison of Tai Script Vowels and Tones
Jim Brase, 2006-01-27
Download "TaiScriptByPhoneme_Vowels.pdf", Acrobat PDF document, 473KB [3163 downloads]
Comparison of Tai Script Ideograms
Jim Brase, 2006-01-27
Download "TaiScriptByPhoneme_Ideograms.pdf", Acrobat PDF document, 136KB [3031 downloads]
Comparison of Tai Scripts - Notes
Jim Brase, 2006-01-27
Download "TaiScriptByPhoneme_Notes.pdf", Acrobat PDF document, 79KB [3298 downloads]

A set of tables comparing the traditional forms of various dialects of the Tai script

Other standards documents

MtgRpt_ISO639RA-JAC.pdf
Peter Constable, 2004-01-20
Download "MtgRpt_ISO639RA-JAC.pdf", Acrobat PDF document, 14KB [3523 downloads]

Report on meeting of ISO 639/RA Joint Advisory Committee, Jan. 15 – 16, 2004

IssuesToResolveISO639_v2a.pdf
Peter Constable, 2004-08-14
Download "IssuesToResolveISO639_v2a.pdf", Acrobat PDF document, 133KB [5241 downloads]

Issues to be resolved in ISO 639-1/-2 in preparation for ISO 639-3. (Revised version of discussion paper for review by ISO 639 stakeholders.)

ISO_DIS_639-3.5
Peter Constable, 2004-09-20
Download "ISO_DIS_639-3.5.pdf", Acrobat PDF document, 4MB [28961 downloads]

Draft 5 of ISO 639-3


© 2003-2021 SIL International, all rights reserved, unless otherwise noted elsewhere on this page.
Provided by SIL's Writing Systems Technology team (formerly known as NRSI). Read our Privacy Policy. Contact us here.