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From: "Nellis, Kenneth (Conduent)" <Kenneth DOT Nellis AT conduent DOT com>
To: "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Subject: RE: cygpath
Date: Mon, 13 Feb 2017 17:29:46 +0000
Message-ID: <0D835E9B9CD07F40A48423F80D3B5A704BBE89A2@USA7109MB022.na.xerox.net>
References: <151946397 DOT 20170210223617 AT yandex DOT ru>
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From: Andrey Repin 
> See http://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-specialchars

This reference says:

> All of the above characters, except for the backslash, are converted to 
> special UNICODE characters in the range 0xf000 to 0xf0ff (the "Private 
> use area") when creating or accessing files.

It does not say *how* they are converted. In fact, by observation, 
they appear to be converted by having 0xF000 added to their code points.
Perhaps this text could be updated accordingly.

I propose the following:

> All of the above characters, except for the backslash, are converted to 
> special UNICODE characters in the range 0xf000 to 0xf0ff (the "Private 
> use area") when creating or accessing files by adding 0xf000 to the
> forbidden characters' code points.

--Ken Nellis

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