Thursday, October 14, 2021

Update October 2021

Here's a few things I've been playing with lately.

jrm-code-project/utilities has a few utilities that I commonly use. Included are utilities/lisp/promise and utilities/lisp/stream which provide S&ICP-style streams (lazy lists). utilities/lisp/utilities is a miscellaneous grab bag of functions and macros.

jrm-code-project/homographic is a toolkit for linear fractional transforms (homographic functions). In addition to basic LFT functionality, it provides examples of exact real arithmetic using streams of LFTs.

jrm-code-project/LambdaCalculus has some code for exploring lambda calculus.

jrm-code-project/CLRLisp is an experimental Lisp based on the .NET Common Language Runtime. The idea is that instead of trying to adapt a standard Lisp implementation to run on the .NET CLR, we just add a bare-bones eval and apply that use the CLR reflection layer and see what sort of Lisp naturally emerges. At this point, it only just shows signs of life: there are lambda expressions and function calls, but no definitions, conditionals, etc. You can eval lists: (System.Console.WriteLine "Hello World."), but I haven't written a reader and printer, so it is impractical for coding.

No comments: