ceph/src/boost/libs/metaparse/include/boost/metaparse/v1/foldl_start_with_parser.hpp

   1 #ifndef BOOST_METAPARSE_V1_FOLDL_START_WITH_PARSER_HPP
   2 #define BOOST_METAPARSE_V1_FOLDL_START_WITH_PARSER_HPP
   3
   4 // Copyright Abel Sinkovics (abel@sinkovics.hu)  2012.
   5 // Distributed under the Boost Software License, Version 1.0.
   6 //    (See accompanying file LICENSE_1_0.txt or copy at
   7 //          http://www.boost.org/LICENSE_1_0.txt)
   8
   9 #include <boost/metaparse/v1/foldl.hpp>
  10
  11 namespace boost
  12 {
  13   namespace metaparse
  14   {
  15     namespace v1
  16     {
  17       template <class P, class StateP, class ForwardOp>
  18       class foldl_start_with_parser
  19       {
  20       private:
  21         template <class Res>
  22         struct apply_unchecked :
  23           foldl<P, typename get_result<Res>::type, ForwardOp>::template apply<
  24             typename get_remaining<Res>::type,
  25             typename get_position<Res>::type
  26           >
  27         {};
  28       public:
  29         typedef foldl_start_with_parser type;
  30
  31         template <class S, class Pos>
  32         struct apply :
  33           boost::mpl::eval_if<
  34             typename is_error<typename StateP::template apply<S, Pos> >::type,
  35             typename StateP::template apply<S, Pos>,
  36             apply_unchecked<typename StateP::template apply<S, Pos> >
  37           >
  38         {};
  39       };
  40     }
  41   }
  42 }
  43
  44 #endif
  45