gosh: Windows Unicode

[89z]

Using a three byte character:

∞ (U+221E) (Alt + 236)

I can paste or enter with no problem:

PS D:\Desktop\sh-master\cmd\gosh> .\gosh.exe
$ ∞
"∞": executable file not found in $PATH
$ ∞
"∞": executable file not found in $PATH
$ ∞
"∞": executable file not found in $PATH

but four byte character:

😀 (U+1F600)

Fails:

$ ��
"😀": executable file not found in $PATH

[mvdan]

I'm not sure how this could be a bug in our code - our prompt is really just printing $ and then reading input bytes until a newline. Do we need to do anything special to properly support all of Unicode on windows?

[89z]

I know that Windows uses UTF-16 in some places, so that could be it. I found another Go shell that works, if it helps:

https://github.com/lmorg/murex

[mvdan]

I'm going to label this "help wanted" because I'm still not sure what needs to be done.