unicode characters are not printed correctly on the windows command line?

[Symphony]

On Monday, 23 December 2019 at 15:34:13 UTC, Steven Schveighoffer 
wrote:
> I really appreciate the enthusiasm here, but at the risk of 
> being cynical, I see little chance that this gets accepted. 
> Before you spend any time on actual code, a DIP is going to be 
> required, as this would be a huge change to the language. I'm 
> sure you have a lot of time, but I don't want you to waste it 
> on something that is likely to be rejected.
>
> If you still want to proceed, even at the risk of doing a lot 
> of work for nothing (or at least, a lot of work that ends up 
> being just on code.dlang.org instead of Phobos), I can tell you 
> what my plan was:
>
> 1. std.stdio.File was going to be set up to source from either 
> an iopipe-based io subsystem, or a FILE *.
>
> 2. The standard handles would be open with the default C FILE * 
> standard handles as the source/target.
>
> 3. Upon using any "d-like" features on a File that is sourced 
> from a FILE * (i.e. byline), the File would be switched to a 
> newly-created iopipe-based source. The theory is here, that 
> once you do something like this, you commit to using D on that, 
> and I'd much rather use a higher performing subsystem (iopipe 
> beats Phobos right now by 2x performance). This only counts for 
> things that make the File unusable on its own anyway. So 
> writefln and writeln would NOT switch the source, neither would 
> lockingTextReader/Writer.
>
> 4. Any new File that is opened using any constructor other than 
> passing in a FILE * will be opened with an iopipe source.
>
> 5. The iopipe and io subsystems can be used directly instead of 
> with File, as a lot of times you don't need that overhead.
>
> Let me know if you decide to do this, I can guide you.
>
> -Steve
Pardon my ignorance, but wouldn't the inclusion of a std.io (e.g. 
Martin Nowak's io library) into Phobos be an easier and cleaner 
move? Other Phobos modules that require std.stdio could be 
gradually changed so that they use std.io instead. There would be 
the issue of two coexisting IO libraries in std, but issuing some 
warnings whenever std.stdio is imported wouldn't be too bad in my 
view; that is unless Mr. Bright's opposition is the main blocker.