>However, there are LISP flavored versions of C
For anyone interested the example given is from https://github.com/tomhrr/dale
Some well-known existing work in this exact area:
https://github.com/kiselgra/c-mera
https://github.com/eudoxia0/cmacro (Written in Common Lisp, doesn't use S-exp syntax)
https://github.com/tomhrr/dale (Prev disc: https://news.ycombinator.com/item?id=14079573)
Newer stuff:
https://github.com/saman-pasha/lcc (No mention of meta-programming)
Lesser known:
https://github.com/deplinenoise/c-amplify (No docs, no update since 2010)
There's also Dale [1].