A small lisp interpreter written in Haskell with minimal dependencies. A few notes:
- The implementation currently includes a small parser combinator library derived of my blog post. This could easily be replaced, but I wanted to keep the dependencies minimal for now. A result is that currently the parser error messages are not very friendly and comments are not supported.
- The behavior of the implementation is loosely based on carld/micro-lisp, but somewhat stricter in a sense that more sanity checks are performed during runtime resulting in error messages instead of crashes.
- A test suite capturing most of the current semantics.
Pull requests are welcome - if you find a bug or plan to add a feature please include unit tests.
A blog post might follow... :-)
- Download and install Haskell Stack.
- Clone the repo, run
stack setup && stack build - To install system wide run
stack install.
# from file
micro-lisp -f [source-file]
# inline
micro-lisp "(+ 1 1)"
# from standard in
echo "(+ 1 1)" | micro-lisp