From @cmaglie on November 11, 2015 15:23

@mcaldwelva
looking at this article from Microsoft:

https://support.microsoft.com/en-us/kb/142982

it seems that spaces are not allowed in 8.3 so they should not be allowed (with c < 0x20).

Also I'm not sure that extended chars (>0x7F) are allowed, the article above leave this case undefined. Are you sure that it's possible? Does this patch solve a real world issue?

From @mcaldwelva on November 12, 2015 3:55

Thanks for the quick response! Yes, this is a problem that anyone might
encounter. I discovered it when I realized that the SD library wasn't
finding several files on my card and narrowed it down to those with Latin
characters. Here are a couple examples of long names and the Windows
generated short names:

1. ¿Por Qué Te Vas_.mp3
   06¿POR~1.MP3
2. Penélope.mp3
   05PENÉ~1.MP3

Windows shouldn't generate short file names with spaces, but other systems
may. I believe space is allowed anywhere except for the first char, but
there is a separate line of code to handle that case. Thanks,

.Mike

On Wed, Nov 11, 2015 at 10:23 AM, Cristian Maglie [email protected]
wrote:

@mcaldwelva https://github.com/mcaldwelva
looking at this article from Microsoft:

https://support.microsoft.com/en-us/kb/142982

it seems that spaces are not allowed in 8.3 so they should not be allowed
(with c < 0x20).

Also I'm not sure that extended chars (>0x7F) are allowed, the article
above leave this case undefined. Are you sure that it's possible? Does this
patch solve a real world issue?

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