Parslet – A Simple PEG Parser Framework for Ruby

Ruby Weekly is a weekly newsletter covering the latest Ruby and Rails news. Parslet is a new "simple parser framework" for Ruby built by Kaspar Schiess. It follows the PEG (parsing expression grammar) style of parsing and its primary goals are to be simple, testable, and to have extensive and powerful error reporting features (something that Kaspar states Treetop sorely lacks). If you've already u