Re: GNAT vs UTF-8 source file names

["J-P. Rosen" <rosen@adalog.fr>]

Le 05/07/2017 à 11:47, Simon Wright a écrit :
> That reference specifies NFKC which I suppose is near! 
Not that near when it comes to ligatures and other crazy characters...
But you are right, it's NFKC.

> GNAT uses this if
> either you compile with -gnatW8 or the file begins with a UTF8 BOM.
Actually, this has nothing to do with encoding or coded character sets.
Even if you use Latin-1, the set of allowed characters is defined as
those that belong to NFKC.

> The problems I've noted in this thread in the GNAT implementation are
> two:
> 
> (1) On Windows and macOS (and possibly on VMS, not sure if that's
> relevant any more) the file name corresponding to a unit name is
> converted to lower-case assuming it's Latin-1 -
> System.Case_Util.To_Lower,
I can talk about character issues since I gave that tutorial at AE'17...
How operating systems manage that, I don't know.

-- 
J-P. Rosen
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