Following up on our previous releases (btcwire, btcjson, btcutil, and btcdb) we are happy to announce btcscript, the script package from btcd:
https://github.com/conformal/btcscript
btcscript provides code and data structures to parse and execute bitcoin scripts. The scripting system bitcoin uses is a stack-based, FORTH-like language. It is not turing complete by design (as adding a full turing complete language opens up all sorts of potential complications and problems), but it still provides a fair amount of power.