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SIL Unicode proposals and other standards-related documents
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 [19594 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 [4887 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 [3233 downloads] |
Biblical Greek, Biblical Hebrew
| AppCopticEieProposal.pdf Peter Constable, 2003-06-13 Download "AppCopticEieProposal.pdf", Acrobat PDF document, 521KB [3708 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 [6237 downloads] |
Proposal to Encode Samaritan Pentateuch Sign (=L2/03-206)
| PapyrusSignComments.pdf Peter Constable, 2003-06-11 Download "PapyrusSignComments.pdf", Acrobat PDF document, 1MB [7510 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 [5152 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 [3175 downloads] |
| Proposal to Encode Additional Cyrillic Characters Lorna A. Priest, 2005-08-09 Download "N2933.pdf", Acrobat PDF document, 828KB [7901 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 [3430 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 [5477 downloads] |
Proposal to encode Devanagari Sign High Spacing Dot
| DevGlottalProposal.pdf Peter Constable, 2003-06-02 Download "DevGlottalProposal.pdf", Acrobat PDF document, 984KB [4272 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 [3100 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 [2784 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 [2700 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 [3499 downloads] |
Lanna
| LannaUnicode.pdf Martin Hosken, 2005-05-03 Download "MH_Lanna_050503.pdf", Acrobat PDF document, 179KB [6679 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 [3175 downloads] |
| (Revised) Request to document glyph variants (=L2/08-034R) Lorna A. Priest, 2008-05-06 Download "L208-034R.pdf", Acrobat PDF document, 2MB [3368 downloads] |
| Request to document glyph variants (=L2/08-034) Lorna A. Priest, 2008-01-22 Download "L208-034.pdf", Acrobat PDF document, 2MB [3483 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 [3762 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 [3670 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 [3587 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 [3252 downloads] |
| Proposal to Encode Modifier Letter Low Circumflex Accent Lorna A. Priest, 2006-07-20 Download "AkhaLahu_proposal.pdf", Acrobat PDF document, 1MB [3138 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 [3960 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 [4712 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 [4539 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 [3933 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 [3534 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 [5001 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 [5524 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 [3916 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 [5990 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 [4864 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 [4667 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 [5260 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 [4361 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 [3355 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 [5714 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 [5285 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 [5177 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 [4967 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 [5231 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 [4184 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 [4067 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 [3687 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 [5259 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 [3968 downloads] |
Unified Tai (Viet Thai)
Current Proposal
| April 2007 WG2 Submission Jim Brase, 2008-02-26 Download "N3220.pdf", Acrobat PDF document, 1MB [4041 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 [3604 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 [6567 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 [4577 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 [4348 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 [4630 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 [3753 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 [3629 downloads] |
| Comparison of Tai Script Vowels and Tones Jim Brase, 2006-01-27 Download "TaiScriptByPhoneme_Vowels.pdf", Acrobat PDF document, 473KB [3571 downloads] |
| Comparison of Tai Script Ideograms Jim Brase, 2006-01-27 Download "TaiScriptByPhoneme_Ideograms.pdf", Acrobat PDF document, 136KB [3391 downloads] |
| Comparison of Tai Scripts - Notes Jim Brase, 2006-01-27 Download "TaiScriptByPhoneme_Notes.pdf", Acrobat PDF document, 79KB [3645 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 [3831 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 [6015 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 [34085 downloads] |
Draft 5 of ISO 639-3
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