Djinn: a new templating language and code generator

[sarn via Digitalmars-d-announce]

I was using Jinja2 to generate some files and I wished I had D 
ranges.  So I made a toy proof-of-concept of a D answer to 
Jinja2.  Then a COVID-19 outbreak here triggered a lockdown, and 
I polished it up a bit more:
https://theartofmachinery.com/2021/01/01/djinn.html
Hope someone else finds it useful, too.