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Ha! If I only knew about 'Build Your Own Lisp' three months ago! I needed a simple language as a vehicle for a compiler talk I'm preparing for this summer, so

by blu42 8y ago

Ha! If I only knew about 'Build Your Own Lisp' three months ago! I needed a simple language as a vehicle for a compiler talk I'm preparing for this summer, so I hacked along an extremely reduced LISP (a 'Non-LISP', as I call it), whose C++ implementation from scratch came out at about 1K -- 1.2K LOC with the AST optimizations I meant to demonstrate for the talk. Self-contained code here -- no libs or (much) STL: https://github.com/blu/tinl https://github.com/blu/tinl OP, thank you for sharing Tim Morgan's work -- it's a work of love!

e12e 8y ago
> whose C++ implementation from scratch... You're aware of clasp? https://github.com/clasp-developers/clasp https://github.com/clasp-developers/clasp Which builds (in part) on embeddable common lisp: https://gitlab.com/embeddable-common-lisp/ecl https://gitlab.com/embeddable-common-lisp/ecl See around 20-30 minutes: https://youtu.be/8X69_42Mj-g https://youtu.be/8X69_42Mj-g
- blu42 8y ago
  Nope, I'm seeing clasp for the first time -- Christian Schafmeister's talk was extremely nice to listen to! I did come across some small LISP implementations at the early stages, but by that time I already had the AST builder done. Maybe because I didn't actively search for LISP implementations, as I didn't need a 'proper' LISP per se, more of a DSL for quickly writing ASTs of arbitrary complex computational expressions. Those ASTs were the final goal ; )