exseneca / jisp

scheme implementation in java

JISP - A Scheme interpreter written in java

A purely education project to teach me the fundamentals of interpreters.

jist is the main data type. It's used to represent programs and act as a box and pointer pair.

A program is scanned into tokens then parsed a program made from a tree of jist structures.

Eval.java then recursively evaluates and applies the program.

To run, compile

javac *.java

and run the repl with

java repl

At the moment very limited syntax is available.

Special forms

• if
• lambda
• def
• println

Operators

• +
• -
• *
• /
• =

TODO

• Add strings
• Add support for comparison operators
• Add nil?
• Add and
• Add or
• Add begin
• Add map