Scheme is a member of the Lisp family of languages, and is an excellent place to start if you're interested in writing your own language. It's small and simple to parse, yet has several advanced features that are only now becoming mainstream. Based on Heist, my main interpreter project, I present a brief overview of Scheme and use Treetop to create a small runtime that includes booleans, integer arithmetic, variables, user-defined functions, conditionals, recursion and lexical closures.

ABOUT JAMES COGLAN

James currently works as a JavaScript developer at theOTHERmedia, producing UI code for various high-profile London More about James Coglan

ABOUT THE LONDON RUBY USER GROUP

LRUG is the London Ruby User Group; a community of ruby developers based in and around London. We meet up at least once a month; on the 2nd Wednesday of the month we have meetings with talks, demos and such-like and then we have pub-based meetups organised on an ad-hoc basis (roughly half-way between meetings). More about the London Ruby User Group