Hi Pitinan,

What we have so far is here. (NOT including the cases they find with Dot Below, because our examination of underlining is still a work in progress. Nothing they have listed would conflict there -- ours is just not formalized yet. But we might want to mention to them that we have also been looking at Latin letters with other diacritics below as well.)

Our discussion of the level on variance/confusable for Acute, Grave, and Dot Above -- which would be created via transitivity -- is still on-going. (At least, I think it is still an open issue. But they are, at minimum, Confusable.)

Source Unicode Name	Source Code Point	Source Glyph	Variant Relationship	Target Glyph	Target Code Point	Target Unicode Name	Disposition	Rationale
LATIN SMALL LETTER O	006F	o	↔	ο	03BF	GREEK SMALL LETTER OMICRON	Blocked	Homoglyph
LATIN SMALL LETTER I WITH ACUTE	00ED	í	↔	ί	03AF	GREEK SMALL LETTER IOTA WITH TONOS	Blocked	Homoglyph
LATIN SMALL LETTER I WITH DIAERESIS	00EF	ï	↔	ϊ	03CA	GREEK SMALL LETTER IOTA WITH DIALYTIKA	Blocked	Homoglyph
LATIN SMALL LETTER O WITH ACUTE	00F3	ó	↔	ό	03CC	GREEK SMALL LETTER OMICRON WITH TONOS	Blocked	Homoglyph
LATIN SMALL LETTER DOTLESS I	0131	ı	↔	ι	03B9	GREEK SMALL LETTER IOTA	Blocked	Homoglyph
LATIN SMALL LETTER OPEN E	025B	ɛ	↔	ε	03B5	GREEK SMALL LETTER EPSILON	Blocked	Homoglyph
LATIN SMALL LETTER IOTA	0269	ɩ	↔	ι	03B9	GREEK SMALL LETTER IOTA	Blocked	Homoglyph
LATIN SMALL LETTER V	0076	v	↔	ν	03BD	GREEK SMALL LETTER NU	Blocked	Glyphs nearly identical due to font design; based on security
LATIN SMALL LETTER A	0061	a	↔	α	03B1	GREEK SMALL LETTER ALPHA	Blocked	Glyphs nearly identical due to font design. See [G1] below.
LATIN SMALL LETTER P	0070	p	↔	ρ	03C1	GREEK SMALL LETTER RHO	Blocked	Glyphs nearly identical due to font design. See [G2] below.
LATIN SMALL LETTER U	0075	u	↔	υ	03C5	GREEK SMALL LETTER UPSILON	Blocked	Glyphs nearly identical due to font design. See [G3] below.
LATIN SMALL LETTER Y	0079	y	↔	γ	03B3	GREEK SMALL LETTER GAMMA	Blocked	Glyphs nearly identical due to font design
LATIN SMALL LETTER SHARP S	00DF	ß	↔	β	03B2	GREEK SMALL LETTER BETA	Blocked	Glyphs nearly identical due to font design. See [G4] below.
LATIN SMALL LETTER A WITH ACUTE	00E1	á	↔	ά	03AC	GREEK SMALL LETTER ALPHA WITH TONOS	Blocked	Glyphs nearly identical due to font design
LATIN SMALL LETTER U WITH ACUTE	00FA	ú	↔	ύ	03CD	GREEK SMALL LETTER UPSILON WITH TONOS	Blocked	Glyphs nearly identical due to font design. See [G3] below.
LATIN SMALL LETTER U WITH DIAERESIS	00FC	ü	↔	ϋ	03CB	GREEK SMALL LETTER UPSILON WITH DIALYTIKA	Blocked	Glyphs nearly identical due to font design
LATIN SMALL LETTER O WITH HORN	01A1	ơ	↔	σ	03C3	GREEK SMALL LETTER SIGMA	Blocked	Glyphs nearly identical due to font design. See [G5] below.
LATIN SMALL LETTER V WITH HOOK	028B	ʋ	↔	υ	03C5	GREEK SMALL LETTER UPSILON	Blocked	Glyphs nearly identical due to font design. See [G3] below.

In addition, we have identified the following as Confusable. My personal opinion is that we would not be outraged if the Greek GP decided that they were actually variants -- other members of the Latin GP may feel otherwise, of course.

Latin Small Letter C with Cedilla	00E7	ç	ς	03C2	Greek Small Letter Final Sigma
Latin Small Letter Eng	014B	ŋ	η	03B7	Greek Small Letter Eta
Latin Small Letter Eth	00F0	ð	δ	03B4	Greek Small Letter Delta
Latin Small Letter I with Diaeresis	00EF	ï	ΐ	0390	Greek Small Letter Iota with Dialytika and Tonos
Latin Small Letter L	006C	l	ι	03B9	Greek Small Letter Iota
Latin Small Letter L with Acute	013A	ĺ	ί	03AF	Greek Small Letter Iota with Tonos
Latin Small Letter N with Acute	0144	ń	ή	03AE	Greek Small Letter Iota with Tonos
Latin Small Letter Open E	025B	ɛ	έ	03AD	Greek Small Letter Epsilon with Tonos
Latin Small Letter T	0074	t	τ	03C4	Greek Small Letter Tau
Latin Small Letter T + Latin Small Letter T	0074 0074	tt	π	03C0	Greek Small Letter Pi
Latin Small Letter U	0075	u	μ	03BC	Greek Small Letter Mu
Latin Small Letter U with Acute	00FA	ú	ύ	03CD	Greek Small Letter Upsilon with Tonos
Latin Small Letter U with Horn	01B0	ư	υ	03C5	Greek Small Letter Upsilon
Latin Small Letter U with Diaeresis	00FC	ü	ϋ	03CB	Greek Small Letter Upsilon with Dialytika
Latin Small Letter U with Diaeresis	00FC	ü	ΰ	03B0	Greek Small Letter Upsilon with Dialytika and Tonos
Latin Small Letter V with Hook + Latin Small Letter V with Hook	028B 028B	ʋʋ	ω	03C9	Greek Small Letter Omega
Latin Small Letter W	0077	w	ω	03C9	Greek Small Letter Omega
Latin Small Letter X	0078	x	χ	03C7	Greek Small Letter Chi
Latin Small Letter Y with Hook	01B4	ƴ	γ	03B3	Greek Small Letter Gamma

Hope that helps

Bill Jouris
Inside Products
bill.jouris@insidethestack.com
831-659-8360
925-855-9512 (direct)

On Monday, September 2, 2019, 11:34:09 AM PDT, Pitinan Kooarmornpatana <pitinan.koo@icann.org> wrote:

Dear Latin GP members,

We are writing to seek for Latin GP’s feedback regarding the Greek-Latin cross-script variants.

The Greek GP has shared the first version of Greek LGR proposal with the IP and the IP has shared the following comment.

Please review the IP communication and the questions below and kindly share you feedback with us.

For any further queries, kindly let us know.

Regards,

Pitinan

To: Latin GP
From: Integration Panel

Subject: Greek-Latin cross-script variants

Date: Aug 9, 2019

We have become aware of a Draft of the Greek LGR proposal in which a number of cross-script variants are defined between Greek and Latin. We are in the process of evaluating these and drafting our response.

Some of the proposed cross-script variants would, if accepted, impose in-script variants for the Latin script. We would like to appraise the Latin GP of these and would like to get the GP's reaction to these proposals.

In principle, each LGR defines its own set of variants, appropriate to its user community, and integration results in the common superset. However, when this process would result in imposing in-script variants between two characters that are both in another script, the bar for accepting such variants for integration has to be necessarily rather higher.

Please review the following table and in particular the cases where a single Greek character is proposed to map to more than one Latin variant.

Greek Letter

Latin Letter

U+03B1 α

Greek small letter ALPHA

ɑ U+0251

Latin small letter ALPHA

U+03B3 γ

Greek small letter GAMMA

ɣ U+0263

Latin small letter GAMMA

U+03B5 ε

Greek small letter EPSILON

ɛ U+025B

Latin small letter OPEN E

U+03B7 η

Greek small letter ETA

n U+006E

Latin small letter N

ņ U+0146

Latin small letter N WITH CEDILLA

ŋ U+014B

Latin small letter ENG

ṇ U+1E47

Latin small letter N WITH DOT BELOW

U+03B9 ι

Greek small letter IOTA

ɩ U+0269

Latin small letter IOTA

U+03BD ν

Greek small letter NU

v U+0076

Latin small letter V

ṿ U+1E7F

Latin small letter V WITH DOT BELOW

U+03BF ο

Greek small letter OMICRON

o U+006F

Latin small letter O

ọ U+1ECD

Latin small letter O WITH DOT BELOW

U+03C5 υ

Greek small letter UPSILON

ʋ U+028B

Latin small letter V WITH HOOK

U+03AE ή

Greek small letter ETA WITH TONOS

ń U+0144

Latin small letter N WITH ACUTE

U+03AF ί

Greek small letter IOTA WITH TONOS

i U+0069

Latin small letter I

ì U+00EC

Latin small letter I WITH GRAVE

í U+00ED

Latin small letter I WITH ACUTE

U+03CC ό

Greek small letter OMICRON WITH TONOS

ò U+00F2

Latin small letter O WITH GRAVE

ó U+00F3

Latin small letter O WITH ACUTE

ȯ U+022F

Latin small letter O WITH DOT ABOVE

U+03CA ϊ

Greek small letter IOTA WITH DIALYTIKA

ï U+00EF

Latin small letter I WITH DIAERESIS

U+03CB ϋ

Greek small letter UPSILON WITH DIALYTIKA

ü U+00FC

Latin small letter U WITH DIAERESIS

(Note that elsewhere in the Greek proposal the accented forms of IOTA, OMICRON and UPSILON are proposed to become in-script variants in Greek. For reasons of transitivity, any Latin cross-script variants would also have to become variants, for example Latin U+028B and U+00FC would end up as variants of each other because U+03C5 and U+03CB are proposed to be in-script variants in Greek. This is not apparent from the way the cross-script variants are listed above.).

We are looking for answers to these three questions:

(1) Which of these proposed variants match corresponding variants that the Latin GP is in the process of defining?

(2) Which additional Latin/Greek variants (not listed above) are being considered by the Latin GP?

(3) Which of the proposed in-script variants for Latin would be considered problematic for the Latin GP?

Your prompt response would be appreciated,

-IP

_______________________________________________
Latingp mailing list
Latingp@icann.org
https://mm.icann.org/mailman/listinfo/latingp

_______________________________________________
By submitting your personal data, you consent to the processing of your personal data for purposes of subscribing to this mailing list accordance with the ICANN Privacy Policy (https://www.icann.org/privacy/policy) and the website Terms of Service (https://www.icann.org/privacy/tos). You can visit the Mailman link above to change your membership status or configuration, including unsubscribing, setting digest-style delivery or disabling delivery altogether (e.g., for a vacation), and so on.