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Date: Mon, 19 Apr 2021 06:50:42 -0700 (PDT)
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Subject: Re: Ada and Unicode
From: Maxim Reznik <reznikmm@gmail.com>
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=D0=BF=D0=BE=D0=BD=D0=B5=D0=B4=D0=B5=D0=BB=D1=8C=D0=BD=D0=B8=D0=BA, 19 =D0=
=B0=D0=BF=D1=80=D0=B5=D0=BB=D1=8F 2021 =D0=B3. =D0=B2 12:28:39 UTC+3, DrPi:
> Le 19/04/2021 =C3=A0 10:29, Maxim Reznik a =C3=A9crit :=20
> > =D0=B2=D0=BE=D1=81=D0=BA=D1=80=D0=B5=D1=81=D0=B5=D0=BD=D1=8C=D0=B5, 18 =
=D0=B0=D0=BF=D1=80=D0=B5=D0=BB=D1=8F 2021 =D0=B3. =D0=B2 01:03:14 UTC+3, Dr=
Pi:=20
> >> In some languages, it is possible to set a tag at the beginning of the=
=20
> >> source file to direct the compiler which encoding to use.=20
> >=20
> > You can do this with putting the Wide_Character_Encoding pragma (This i=
s a GNAT specific pragma) at the top of the file.
> >
> Wide and Wide_Wide characters and UTF-8 are two distinct things.=20
> Wide and Wide_Wide characters are supposed to contain Unicode code=20
> points (Unicode characters).=20
> UTF-8 is a stream of bytes, the encoding of Wide or Wide_Wide characters.

Yes, it is.

> What's the purpose of "pragma Wide_Character_Encoding (UTF8);" ?

This pragma specifies the character encoding to be used in program source t=
ext...

https://docs.adacore.com/gnat_rm-docs/html/gnat_rm/gnat_rm/implementation_d=
efined_pragmas.html#pragma-wide-character-encoding

I would suggest also this article to read:

https://two-wrongs.com/unicode-strings-in-ada-2012

Best regards,