A simple command line REPL for April.
To use APL symbols in the terminal, you can follow the guides here.
Make sure you have quicklisp in order to load April.
Run with rlwrap sbcl --load repl.lisp. All testing for this REPL has been done on SBCL.
Multiline definitions begin when you end a line with {, and they automatically end when all braces are closed.