Unicode 10.0

[lemzwerg]

This commit updates ucharclasses to Unicode version 10.0.

• Scripts new in Unicode 9.0 and 10.0 have been added, mostly for the new XeTeX engine only.
• The following scripts previously available for new XeTeX versions are now available for older XeTeX versions, too (we need them to define proper class collections): CyrillicExtendedC, GlagoliticSupplement, IdeographicSymbolsandPunctuation, MongolianSupplement, CJKUnifiedIdeographsExtensionF, KanaExtendedA, SyriacSupplement.
• The following scripts previously available for old XeTeX versions are now only available for newer XeTeX versions (to make room for the scripts mentioned in the previous item): Carian, OldItalic, PhaistosDisc, OldSouthArabian, OldTurkish, OldNorthArabian, AnatolianHieroglyphs.
• The following class collections have been added: CanadianSyllabics, CherokeeFull, EthiopicFull, GeorgianFull, MongolianFull, MyanmarFull, SundaneseFull, SyriacFull.

[Pomax]

Awsome, thanks @lemzwerg!

One question: I see a number of " (see below)" entries with changes to the docs to put them in parentheses, what does this different in documentation mean?

[lemzwerg]

ucharclasses.sty can only support up to 256 blocks with older XeTeX versions; there is an if-clause to add more scripts only if a newer XeTeX version is in use. Since I've introduced some new collections (e.g., 'MongolianFull') where 'Mongolian' was an older block but 'MongolianSupplement' got introduced with a recent Unicode version, I had to move 'MongolianSupplement' to the old XeTeX part also – and since all slots are already occupied, it was necessary to move another script to the new XeTeX part.

[Pomax]

I'm kind of of the opinion that for older XeTeX versions, you're going to have to live with an older ucharclasses version, so instead of trying to work around that limitation, we should mark ucharclasses as having a new minimum required xetex version, so we can throw a package error when it's getting used with a version of xetex that only supports the original 252 custom classes.

[lemzwerg]

Well, yes, but I've already done the work for supporting both older and newer XeTeX versions :-)

[Pomax]

fair enough. I'll merge this in and then https://github.com/Pomax/ucharclasses/pull/22 might (probably =D) need a rebase