Scheme To JS

A Scheme-to-JavaScript transpiler

Supported Syntax

• Literals
  • Number: 1, -2, 3.5
  • Character: #\a, #\newline
  • String: "hello"
  • Bool: #t, #f
• Definition (define pi 3.141592)
• Assignment: (set! id val)
• Variadic functions: (define (+ . args) (foldl b+ 0 args))
• Quotation: '(+ 1 2)
• Vectors: '#(1 2 3)
• Lambdas: (lambda (x y) (+ x y))
• Special Forms: if, cond, and, or, let, let*, letrec, begin

Other Features

• Pretty-Printing: (print (cons 1 (cons 2 3))) => prints "(1 2 . 3)"
• Preprocessor Directive for File Inclusion: ;#include std.scm
  • ./ and ./scm-lib/ are searched for matching files
  • Topological sort for dependencies
• Standard Library (std.scm)
  • Implementations of eval and apply
  • Most other standard scheme procedures
• Tail-Call Optimization