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From: Spiros Bousbouras <spibou@gmail.com>
Newsgroups: comp.lang.ada
Subject: Re: XMLAda & unicode symbols
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On Mon, 21 Jun 2021 12:49:01 -0700 (PDT)
"196...@googlemail.com" <1963bib@googlemail.com> wrote:
> On Monday, 21 June 2021 at 16:37:21 UTC+1, Simon Wright wrote:
> > "196...@googlemail.com" <196...@googlemail.com> writes: 
> > 
> > > That's the degree symbol, what I really need is the degree centigrade 
> > > symbol which is U+2103. 
> > > 
> > > Having Character'Val (16#21#) & Character'Val (16#03#) fails at runtime.
> > That's because the utf-8 encoding is 3 octets, 0xE2 0x84 0x83
> 
> Yup, that works, but just how the heck do you get from U+2103 to those 3 octets?

If you don't mind downloading and compiling a small C programme you can use my
own  http://vlaho.ninja/prog/#literal .If you name the executable  lit  then
    lit -h u2103h
gives
    E2 84 83

> I can see from http://www.ltg.ed.ac.uk/~richard/utf-8.cgi?input=2103&mode=hex that it gives it.