Re: Ada and Unicode

[Maxim Reznik <reznikmm@gmail.com>]

понедельник, 19 апреля 2021 г. в 12:28:39 UTC+3, DrPi:
> Le 19/04/2021 à 10:29, Maxim Reznik a écrit : 
> > воскресенье, 18 апреля 2021 г. в 01:03:14 UTC+3, DrPi: 
> >> In some languages, it is possible to set a tag at the beginning of the 
> >> source file to direct the compiler which encoding to use. 
> > 
> > You can do this with putting the Wide_Character_Encoding pragma (This is a GNAT specific pragma) at the top of the file.
> >
> Wide and Wide_Wide characters and UTF-8 are two distinct things. 
> Wide and Wide_Wide characters are supposed to contain Unicode code 
> points (Unicode characters). 
> 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 text...

https://docs.adacore.com/gnat_rm-docs/html/gnat_rm/gnat_rm/implementation_defined_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,