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From: Achim Gratz <Stromeko@nexgo.de>
To: cygwin@cygwin.com
Subject: Re: cygpath 2.6.0: -m " C:" and garbled output
References: <CAFKkpzpSu7bOCKf3uAwHrEiHcs5M9RCzVV4o2V=Lpo7PrgnGJg@mail.gmail.com>
Date: Thu, 06 Oct 2016 21:26:04 +0200
In-Reply-To: <CAFKkpzpSu7bOCKf3uAwHrEiHcs5M9RCzVV4o2V=Lpo7PrgnGJg@mail.gmail.com>	(Andre Maroneze's message of "Thu, 6 Oct 2016 14:38:41 +0200")
Message-ID: <87zimhp9df.fsf@Rainer.invalid>
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux)
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Andre Maroneze writes:
> I just noticed a difference in behavior between versions 2.5.2 and
> 2.6.0 of cygpath (the ones I could test): if I run
>
> cygpath -m " C:"
>
> (notice the space before the C, inside the double quotes)

A filename can legitimately start with a space and it is a relative
filename in that case.  So dropping the space just to get something that
looks like a drive letter is wrong.

> In cygpath 2.6.0, this outputs C? (C followed by the unicode character
> 0xF03A, which is a ":" (0x3A) character, but prefixed with "F0").

That's how the otherwise forbidden ":" character gets encoded into the
filename.

> In cygpath 2.5.2 (and 2.4.1, which I also could test), it outputs C:,
> as I would expect.

No, that's wrong as explained above.


Regards,
Achim.
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