M2Unit? (was Re: Unicode I/O for GM2)

[Alice Osako]

Gaius Mulley:
> Alice Osako <alicetrillianosako@gmail.com> writes:
>
> > Gaius, I have to thank you for your explanation of how to output UTF-8
> > to the console. It works exactly as intended so far as I can tell.
> you're welcome - I was both relieved and surprised to see the Euro glyph
> appear on the terminal!
I can see that being the case, yes. As of now, my Console test has the 
following output:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 0: 'a' [U+0061] is a valid codepoint; is a printable ASCII character; 
is in the BMP. -> 97 -> 'a'
 1: 'a' [U+0061] is a valid codepoint; is a printable ASCII character; 
is in the BMP. -> 97 -> 'a'
 2: 'a' [U+0061] is a valid codepoint; is a printable ASCII character; 
is in the BMP. -> 97 -> 'a'
 3: 'Ġ' [U+0120] is a valid codepoint; is not a printable ASCII 
character; is in the BMP. -> 288 -> 'Ġ'
 4: 'Á' [U+00C1] is a valid codepoint; is not a printable ASCII 
character; is in the BMP. -> 193 -> 'Á'
 5: 'Á' [U+00C1] is a valid codepoint; is not a printable ASCII 
character; is in the BMP. -> 193 -> 'Á'
 6: 'Ł' [U+0141] is a valid codepoint; is not a printable ASCII 
character; is in the BMP. -> 321 -> 'Ł'
 7: '�' [U+FFFD] is a valid codepoint; is not a printable ASCII 
character; is in the BMP. -> 65533 -> '�'
 8: '𐐁' [U+10401] is a valid codepoint; is not a printable ASCII 
character; is not in the BMP. -> 66561 -> '𐐁'
 9: '𐐁' [U+10401] is a valid codepoint; is not a printable ASCII 
character; is not in the BMP. -> 66561 -> '𐐁'
10: '�' [U+FFFD] is a valid codepoint; is not a printable ASCII 
character; is in the BMP. -> 65533 -> '�'
11: '!' [U+0021] is a valid codepoint; is a printable ASCII character; 
is in the BMP. -> 33 -> '!'
12: 'ธ' [U+0E18] is a valid codepoint; is not a printable ASCII 
character; is in the BMP. -> 3608 -> 'ธ'
Passes: 39
Fails:  0
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

I specifically added the last one (THAI CHARACTER THO THONG) because it 
was mentioned in Chris Lilley's original code as an example codepoint, 
and I could easily use the known codepoint value to confirm that the 
translations worked as intended.

This test, along with three others, can be found at

https://github.com/Schol-R-LEA/UNICODE-For-Modula-2/tree/main/tests

The accompanying Makefile has targets for each of these.

However, having to write unit tests manually has led me to considering 
writing an xUnit framework for Modula-2, to the point where I have set 
up a repo for such a project.

https://github.com/Schol-R-LEA/M2Unit

However, this is a major undertaking, and more importantly, I have no 
idea of how to implement such a framework. I suspect I will be studying 
the problem, and existing solutions, for at least a few weeks before I 
can even consider coding on it.

Any advice on this process would be appreciated.

PS: I have reached out to Chris Lilley about the UNICODE project fork, 
and he has no problem with what I have done. I've just sent an email 
asking him about possibly re-licensing it as LGPL, and await his reply.