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Subject: Re: cygpath 2.6.0: -m " C:" and garbled output
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From: Ken Brown <kbrown AT cornell DOT edu>
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Date: Thu, 6 Oct 2016 15:15:31 -0400
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On 10/6/2016 8:38 AM, Andre Maroneze wrote:
> 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)
>
> In cygpath 2.6.0, this outputs C? (C followed by the unicode character
> 0xF03A, which is a ":" (0x3A) character, but prefixed with "F0").
> In cygpath 2.5.2 (and 2.4.1, which I also could test), it outputs C:,
> as I would expect.
>
> This happens on both Windows 7 and Windows 8.1, and not only on my
> machine, so it seems fairly deterministic.
>
> Is it some sort of undefined behavior to give an argument to cygpath
> starting with a space inside double quotes?

I think you'll find the explanation here:

https://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-specialchars

I don't know why this doesn't happen with earlier versions of cygwin.

Ken

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