Boost C++ Libraries

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Struct merge_directive

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