Re: XMLAda & unicode symbols

["196...@googlemail.com" <1963bib@googlemail.com>]

On Sunday, 20 June 2021 at 19:16:57 UTC+1, Dmitry A. Kazakov wrote:
> On 2021-06-20 19:58, 196...@googlemail.com wrote: 
> > On Sunday, 20 June 2021 at 18:23:35 UTC+1, Dmitry A. Kazakov wrote: 
> >> On 2021-06-20 19:02, 196...@googlemail.com wrote: 
> >>> On Saturday, 19 June 2021 at 20:53:49 UTC+1, Jeffrey R. Carter wrote: 
> >>>> On 6/19/21 8:28 PM, 196...@googlemail.com wrote: 
> >>>>> I'm creating SVG files with XMLAda and I need to have a degree symbol within some text. 
> >>>>> 
> >>>>> I have: 
> >>>>> procedure Add_Min_Max (Min_Max_Str : String; X_Pos : String; Y_Pos : String) is 
> >>>> The degree symbol is part of Latin-1, so why not include it directly in your string? 
> >>>> 
> >>>> S : constant String := "50" & Ada.Characters.Handling.Latin_1.Degree_Sign; 
> >>> 
> >>> Unfortunately, when XMLAda comes to exporting the DOM tree, it crashed with: 
> >>> raised UNICODE.CES.INVALID_ENCODING : unicode-ces-utf8.adb:258 
> >> Maybe it expects UTF-8, as most third party Ada libraries do. In that 
> >> case use: 
> >> 
> >> Character'Val (16#C2#) & Character'Val (16#B0#) 
> > 
> > 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. 
> > 
> > I'm sure it's easy enough, and when I get it, I'll be banging my head against the desk.
> Why do you use XMLAda? SVG is a text file, I would write directly. It is 
> the reverse, rendering SVG image, that is difficult to write from scratch. 
> 
> And why do you want to create SVG files?
> -- 
> Regards, 
> Dmitry A. Kazakov 
> http://www.dmitry-kazakov.de

I am using XML/Ada as I wish to do it "properly", it's the way you learn.

As for SVG, I am graphing temps, humidity & pressure, and when you zoom in, it still looks sharp. The previous system I coded in C, used png's which were screwed up when Google screwed up and forced HDPI settings on chrome users. THE svg's will also contain code to highlight etc points.