Tiny McCarty-style Lisp In 1985 I tried writing my own Lisp, but the project derailed for non-technical reasons. More recently [2018] I came across John McCarty's [1, page 13] cute minimalist kernel of a Lisp via Paul Graham's [2] tweak of the same, but was surprised to not be able to locate a C version of this. This felt like a good Sunday project so here's it is. Once I had it working I went for more fun and enabled CDR-coding which enables some CONS cells to only take a single word. To make this more useful would risk harming the readability of this and it's small size, but in rough priority order it could use: - Pervasive checking, stack overflow, etc - Support for integers and strings - Better support for adding symbols - Garbage collection (Baker-style Incremental GC for max fun) To make it even more useful I would add: - Static scoping (ie. Scheme subset) - Compilation to a [threaded] virtual machine [1] http://www.softwarepreservation.org/projects/LISP/book/LISP%201.5%20Programmers%20Manual.pdf [2] https://programmingpraxis.com/2011/11/01/rip-john-mccarthy/2/