"Examples of designs that meet most of the criteria for "goodness" (easy to understand, flexible, efficient) are a recursive descent parser, which is traditional procedural code. Another example is the STL, which is a generic library of containers and algorithms depending crucially on both traditional procedural code and on parametric polymorphism."

—Bjarne Stroustrup

Welcome to Spirit

Spirit is a set of C++ libraries for parsing and output generation implemented as Domain Specific Embedded Languages (DSEL) using Expression templates and Template Meta-Programming. The Spirit libraries enable a target grammar to be written exclusively in C++. Inline grammar specifications can mix freely with other C++ code and, thanks to the generative power of C++ templates, are immediately executable.

Spirit is part of Boost Libraries, a peer-reviewed, open collaborative development effort.

Mar 05

Tracking the Input Position While Parsing

By Peter Schüller Advanced, Beginner, Qi Example Comments Off

The following article is about tracking the parsing position with Spirit V2. This is useful for generating error messages which tell the user exactly where an error has occurred. We also show how to use Spirit V2 to parse from an input stream without first reading the whole stream into a std::string.

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Tagged with: MultiPass • Qi

Welcome to Spirit

Tracking the Input Position While Parsing

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