Heist 0.3.0 Released

heist version 0.3.0 has been released!

Heist is a Scheme interpreter written in Ruby. It provides an executable
for running Scheme code directly, and also allows the interpreter to be
easily embedded in, and extended using, Ruby applications. It nominally
targets R5RS, though is likely to be more liberal than other


Version 0.3.0 (2009-07-31)

We’ve got all your data types now

  • Vectors are supported, including the full R5RS library, macro and
    quasiquoting support
  • Characters are available, including named characters (#\newline,
  • The full R5RS character and string libraries are implemented
  • Complex numbers work correctly on Ruby1.9
  • Dotted tail notation properly supported in macro templates