[Nowide] Nowide and Property Tree file IO

 I'm trying to sidestep some issues with unicode filenames on Windows
(MSYS64) using Boost.Nowide. Specifically, my program operates in UTF-8,
and providing that to std/Boost functions yields incorrect filenames due to
them being interpreted as UTF-16 (or something along those lines).

However, the primary functions I have issues with are from
Boost.PropertyTree. Specifically, read_json and write_json. These functions
don't seem to be Nowide-friendly.

I tried just calling boost::nowide::nowide_filesystem() before my json
calls, hoping it would work; it did not, I got the same mangled filenames.
My next thought was to see if a nowide stream could be substituted into the
stream-taking variants of read_json/write_json; it cannot be, they aren't
compatible.

The only option that seems to leave is something along these lines:
https://stackoverflow.com/a/21537818, but using Nowide to read in the file.
That adds a lot of steps (and possibly memory usage). It feels like I'm
missing something.

Any suggestions would be appreciated. Thanks in advance.

:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-
*William E. Kappler II*
Software Designer and Programmer
william-kappler.com

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