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

This is the documentation for a snapshot of the master branch, built from commit a2b80500d6.

Struct merge_directive

boost::parser::merge_directive

Synopsis

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


struct merge_directive {

  // public member functions
  template<typename ParserTuple, typename BacktrackingTuple, 
           typename CombiningGroups> 
    constexpr auto 
    operator[](parser_interface< seq_parser< ParserTuple, BacktrackingTuple, CombiningGroups > >) const noexcept;
};

Description

A directive type that can only be used on sequence parsers, that forces the merge of all the sequence_parser's subparser's attributes into a single attribute.

`merge_directive` public member functions

template<typename ParserTuple, typename BacktrackingTuple, 
         typename CombiningGroups> 
  constexpr auto 
  operator[](parser_interface< seq_parser< ParserTuple, BacktrackingTuple, CombiningGroups > > rhs) const noexcept;