build-your-own-lisp

Building a subset of Lisp written in C to learn both languages - tutorial at http://www.buildyourownlisp.com

Dependencies

• cc compiler for Clang (change to gcc in clisp.sh at will)
• mpc (Micro Parser Combinator) library, included in source already
• Other standard C libraries: stdio.h, stdlib.h, math.h

How to use

To run the interactive console, pull this repository and then in your terminal, run:

# Each new revision of the 'clisp' language has its own file
# the latest being 'variables.c'
./clisp.sh variables

Features

• S-Expression (evaluatable)
• Q-Expression (can be written as code inside data)
• Environment for containing variables defined and retrieving them
• Functions (builtin)
  • Arithmetic (+, -, *, /, %, ^, max, min)
  • List-processing (list, head, tail, eval, join, cons, len, init)
  • Definition (def) for numerical variables so far, supporting tuple assignment (e.g. def {a b c} 1 2 3)
  • Exit (exit ())
  • All defined variables (env ())
• Rich error reports and error-as-expression