Lambdas!

StringLang now has support for lambdas! Represented as Strings of course. See the README for a quick introduction.

There's also experimental support for some static analyses and optimizations (does not support lambdas yet).

REPL!

StringLang now has a REPL, play with it by running stringlang without any arguments.

User-defined functions

Programs may now contain a header consisting of several function definitions.

First release

Run StringLang programs using ./stringlang <program.stringlang> arg1 arg2 ...