Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

Function template prefix_parse

boost::parser::prefix_parse

Synopsis

// In header: <boost/parser/parser.hpp>


template<parsable_iter I, std::sentinel_for< I > S, typename Parser, 
         typename GlobalState, 
         error_handler< I, S, GlobalState > ErrorHandler> 
  auto prefix_parse(I & first, S last, 
                    parser_interface< Parser, GlobalState, ErrorHandler > const & parser, 
                    trace trace_mode = trace::off);

Description

Parses [first, last) using parser. Returns a std::optional containing the attribute produced by parser on parse success, and std::nullopt on parse failure. If trace_mode == trace::on, a verbose trace of the parse will be streamed to std::cout.