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Date:	Fri, 14 Apr 2023 22:21:40 +0200
To:	cygwin AT cygwin DOT com
Cc:	Brian Inglis <Brian DOT Inglis AT shaw DOT ca>
Subject:	Re: Can not stat file with utf char U+F020
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From:	Gionatan Danti via Cygwin <cygwin AT cygwin DOT com>
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Il 2023-04-14 21:54 Brian Inglis ha scritto:
> UCSUR Under-ConScript Unicode Registry and its predecessor ConScript
> Unicode Registry CSUR
> 
> 	https://www.kreativekorp.com/ucsur/
> 
> 	http://www.evertype.com/standards/csur/
> 
> unofficially register Unicode PUA glyphs for academic, artificial,
> constructed, historical, invented, and minority language scripts, some
> of which have made it into Unicode e.g.
> 
> 	Script		CSUR		Unicode
> 	PHAISTOS DISC	U+E6D0-U+E6FF	U+101D0-U+101DF
> 	SHAVIAN		U+E700-U+E72F	U+10450-U+1047F
> 	DESERET		U+E830-U+E88F	U+10400-U+1044F
> 
> and maintain their own Unidata e.g.
> 
> 	https://www.kreativekorp.com/ucsur/UNIDATA/Blocks.txt
> 
> and some Unicode fonts have -CSUR addition files (like -Italic etc.)
> that support BMP and SMP PUA glyphs.

So they are actively using PUA? I did not know that, thanks.

> For Cygwin purposes:
> 
> F000−F7FF	unassigned	Reserved for hacks and corporate use
> 
> so Cygwin's special Windows file name characters mappings are clear:
> 
> 	F022	"
> 	F02A	*
> 	F03A	:
> 	F03C	<
> 	F03E	>
> 	F03F	?
> 	F07C	|

Would it be possible to "bypass" the chars in the range F000−F7FF that 
are not used/reserved by cygwin?

Regards.

-- 
Danti Gionatan
Supporto Tecnico
Assyoma S.r.l. - www.assyoma.it
email: g DOT danti AT assyoma DOT it - info AT assyoma DOT it
GPG public key ID: FF5F32A8

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