JASI(Just Another Scheme Interpreter) written in Haskell

Even so, it does support following features:

• Lambda Calculus;
• A prelude prelude.scm which pre-defined a set of handy functions.
• An user-friendly REPL, which support arrow keys use. LOL
• Fullly support to binary, oct,dec and hex base number parsing, float number is fine too.
• Implemented case,if and cond three kinds of condtion mechanism.
• Powerful error handling, you can always get hints and specfic lines number if your code went something wrong. ...

stack is required to build the project. Make sure you have stack1.0.0 installed on your computer. then do:

stack build
stack exec schemeprj-exe

ready> (load "prelude.scm")
(lambda ("pred" "lst") ...)
ready> (not #f)
#t
ready> (product 1 2 3 4 5)
120
ready> (sum 1 2 3 4 5)
15
ready> ((lambda (x) (product 2 x)) 10)
20
ready>