...one of the most highly
regarded and expertly designed C++ library projects in the
world. — Herb Sutter and Andrei
Spirit.Qi parsers fall into a couple of generalized concepts. The Parser is the most fundamental concept. All Spirit.Qi parsers are models of the Parser concept. PrimitiveParser, UnaryParser, BinaryParser, NaryParser, and Nonterminal are all refinements of the Parser concept.
The following sections provide details on these concepts.