Re: [I18ndir] Review of new characters for Unicode 12.0.0

["Patrik Fältström " <[e-mail]>]

Note that beta version of 12.1.0 already exists.

   Patrik

On 18 Mar 2019, at 1:49, Martin J. Dürst wrote:

> There were some talks about doing a review of the new characters for Unicode 12.0.0, for 'due diligence'.
>
> Here are the results such a review of new characters for Unicode 12.0.0, starting off http://www.unicode.org/charts/PDF/Unicode-12.0/.
> I also used a small Ruby program that I wrote, attached. In order for it to work, you have to make sure you use the latest (and greatest :-)
> version of Ruby that supports Unicode 12.0.0.
>
> Telugu
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-0C00.pdf new U+0C77 TELUGU SIGN SIDDHAM -> disallowed, okay for sign used at the beginning of texts as an invocation
>
> Lao
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-0E80.pdf new Lao letters and a sign (virama) for Pali and Sanskrit
> -> pvalid, which is okay for historical letters and marks
>
> Vedic Extensions
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-1CD0.pdf new U+1CFA VEDIC SIGN DOUBLE ANUSVARA ANTARGOMUKHA -> pvalid, okay because this is graphically a base letter (used as a base for a combining nasal sign)
>
> Miscellaneous Symbols and Arrows
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-2B00.pdf two new symbols -> disallowed, okay
>
> Supplemental Punctuation
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-2E00.pdf new U+2E4F CORNISH VERSE DIVIDER -> disallowed, okay
>
> Latin Extended-D
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-A720.pdf 4 casing pairs, 3 upper-case letters completing case pairs with existing lower-case letters. Upper-case are disallowed (-> okay), lower-case are pvalid. Among these 4, the following three may merit a closer look:
> U+A7BB LATIN SMALL LETTER GLOTTAL A
> U+A7BD LATIN SMALL LETTER GLOTTAL I
> U+A7BF LATIN SMALL LETTER GLOTTAL U
> They are graphically very similar (if not identical) to the following three from the Latin extensions for Vietnamese:
> (see https://www.unicode.org/charts/PDF/U1E00.pdf)
> U+1EA3 ả LATIN SMALL LETTER A WITH HOOK ABOVE
> U+1EC9 ỉ LATIN SMALL LETTER I WITH HOOK ABOVE
> U+1EE7 ủ LATIN SMALL LETTER U WITH HOOK ABOVE
> I have sent a mail to Unicode experts to get more information on these.
>
> Latin Extended-E
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-AB30.pdf two new letters for Sinological transcription, digraphs with hooks -> pvalid, okay
>
> Elymaic
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-10FE0.pdf new script Elymaic, 23 letters, thereof one ligature
> -> pvalid, okay
>
> Newa
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-11400.pdf U+1145F NEWA LETTER VEDIC ANUSVARA -> pvalid, okay
>
> Takri
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-11680.pdf U+116B8 TAKRI LETTER ARCHAIC KHA -> pvalid, okay
>
> Nandinagari
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-119A0.pdf new script Nandinagari, all letters pvalid, one sign (U+119E3)
> disallowed, okay
>
> Soyombo
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-11A50.pdf two alternate visarga signs in Soyombo
> pvalid, okay [maybe these are targets for a variant set]
>
> Tamil Supplement
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-11FC0.pdf Tamil supplement: signs for fractions, traditional units, etc.
> disallowed, okay
>
> Egyptian Hieroglyph Format Controls
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-13430.pdf Egyptian Hieroglyph Format Controls for quadrats -> all disallowed, okay
>
> Miao
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-16F00.pdf Miao letters and marks for writing additional languages -> all pvalid, okay
>
> Ideographic Symbols and Punctuation
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-16FE0.pdf two additional symbols -> disallowed, okay
>
> Tangut
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-17000.pdf 6 additional Tangut characters -> pvalid, okay
>
> Small Kana Extension
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-1B130.pdf historic small Hiragana/Katakana extensions -> pvalid, okay
> [Should be excluded from general use because they may be confused with the larger versions by everyday users, but this is only really a problem for the last character (U+1B167 KATAKANA LETTER SMALL N) because the others won't usually appear in names anyway.]
>
> Nyiakeng Puachue Hmong
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-1E100.pdf new script, all characters except one are are pvalid
> I have done some additional checks on the following two:
> U+1E14E NYIAKENG PUACHUE HMONG LOGOGRAM NYAJ
>    o used to represent the word for money or currency
> U+1E14F NYIAKENG PUACHUE HMONG CIRCLED CA
>    o used to indicate ownership
>    -> U+1E108  nyiakeng puachue hmong letter ca
> Currently the former is pvalid but the later is disallowed.
> It may well be that it would be more appropriate to have the former be disallowed (as currently the '$' sign is disallowed in LDH) but allow the latter, if it is e.g. appearing in composite words which may appear in domain names. But according to the descriptions in
> http://unicode.org/L2/L2017/17002r3-n4780r3-nyiakeng-puachue-hmong.pdf, we are fine as is.
>
> Wancho
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-1E2C0.pdf new script, all letters/digits/tone marks pvalid, one currency sign disallowed, okay
>
> Adlam
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-1E900.pdf U+1E94B ADLAM NASALIZATION MARK -> pvalid, okay
> [Looks somewhat like an apostrophe, but that can be said of a Hebrew Yod,... too.]
>
> Ottoman Siyaq Numbers
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-1ED00.pdf These are numbers, but they are not positional, and there's no zero -> disallowed, okay
> [If these were in present-day use, we might want to check whether these might appear in e.g. company names and such, but these are only used historically, so we're okay.]
>
> Enclosed Alphanumeric Supplement
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-1F100.pdf U+1F16C RAISED MR SIGN, has a NFKC composition -> disallowed, okay
>
> Transport and Map Symbols
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-1F680.pdf two additional transport-related emoji -> disallowed, okay
>
> Geometric Shapes Extended
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-1F780.pdf colored circles and squares -> disallowed, okay
>
> Supplemental Symbols and Pictographs
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-1F900.pdf additional emoji of various kinds -> disallowed, okay
>
> Chess Symbols
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-1FA00.pdf turned and other variants of chess symbols for variants of chess -> disallowed, okay
>
> Symbols and Pictographs Extended-A
> http://www.unicode.org/charts/PDF/Unicode-12.0/U120-1FA70.pdf additional emoji -> disallowed, okay
>
>
> Regards,    Martin.
>
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