Machinery, sensors, equipment, client/server communications, even file formats... Parsing and producing communication streams is everywhere you look. Often these tasks are simple or small enough to tempt ad-hoc solutions. The Spirit 2.1 library provides a model that is simple enough to tackle those "quick hacks" and easily scales for full-featured AST generation.This session will explore real-life experiences with the parser and generator (Qi/Karma) portions of the Spirit library. As we look at various small and medium-sized parsers/generators employed in various products we will establish some "rules-of-thumb" and guidelines for tackling the parser/generator domain with Qi/Karma. The session will end with the implementation of a usable XML parser and a simplified XPath-like node extractor.The session will include some lecture and a lot of tutorial. Attendees will walk away with the knowledge and tools to begin parsing and generating with Spirit Qi/Karma.Download slides Less