Unicode I/O for GM2

[Alice Osako]

    I am trying to find a
      suitable way to approach both file and console I/O for my UNICODE
      library, and I am concerned that - especially regarding console
      I/O - I may have to write some sort of external C module which
      would be accessed by FFI in some manner, which would act as a
      wrapper around the wchar_t functions and handle the transitions to
      and from the Unicode character types. 
      
      This is concerning, as I would rather find a native Modula-2
      solution if possible, but in this instance I don't see a way to do
      so. Most of the existing I/O operations for numbers auto-convert
      the values into numeric text strings; the only exception to this
      is the ISO RawIO and SRawIO libraries. 
      
      Unfortunately, while I tried to use [S]RawIO to implement
      ReadUtf8Buffer and WriteUtf8Buffer, it didn't have the desired
      behavior with console output. I've checked in the two experimental
      procedures, if anyone is curious, but the salient point is that it
      doesn't work as intended. In any case, it would have been specific
      to ISO support.
      
      Any advice would be appreciated.