sequence_rule.hpp

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// (c) Copyright 2015 DESY, Eugen Wintersberger <eugen.wintersberger@desy.de>
//
// This file is part of libpniio.
//
// libpniio is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 2 of the License, or
// (at your option) any later version.
//
// libpniio is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with libpniio.  If not, see <http://www.gnu.org/licenses/>.
// ===========================================================================
//
// Created on: Jan 29, 2015
//     Author: Eugen Wintersberger <eugen.wintersberger@desy.de>
//
//
#pragma once

#include<pni/core/types.hpp>
#include<pni/core/error.hpp>

#include "../exceptions.hpp"
#include "get_rule_type.hpp"
#include "delimiter_rule.hpp"


namespace pni{
namespace io{

    //------------------------------------------------------------------------
    template<
             typename ITERT,
             typename ST
            >
    struct sequence_rule : boost::spirit::qi::grammar<ITERT,ST()>
    {
        typedef typename ST::value_type value_type; 
        typename get_rule_type<ITERT,value_type>::type element_rule_;

        delimiter_rule<ITERT> delimiter_;

        boost::spirit::qi::rule<ITERT> start_;
        boost::spirit::qi::rule<ITERT> stop_;
        char start_symbol_;
        char stop_symbol_;
        boost::spirit::qi::rule<ITERT,ST()> sequence_;

        //--------------------------------------------------------------------
        sequence_rule() : sequence_rule::base_type(sequence_)
        { 
            using namespace boost::spirit;

            sequence_ = qi::omit[*qi::blank]>>
                        (element_rule_ %(+qi::blank))>>
                        qi::omit[*qi::blank]; 
        }

        //--------------------------------------------------------------------
        sequence_rule(char del): 
            sequence_rule::base_type(sequence_),
            delimiter_(del)
        {
            using namespace boost::spirit;

            sequence_ = qi::omit[*qi::blank]>>
                        (element_rule_ % delimiter_)>>
                        qi::omit[*qi::blank];
        }

        //--------------------------------------------------------------------
        sequence_rule(char start,char stop):
            sequence_rule::base_type(sequence_),
            start_(start>boost::spirit::qi::omit[*boost::spirit::qi::blank]),
            stop_(boost::spirit::qi::omit[*boost::spirit::qi::blank]>stop)
        {
            using namespace boost::spirit;
            sequence_ = start_> (element_rule_ % (+qi::blank))>stop_;
        }

        //--------------------------------------------------------------------
        sequence_rule(char start,char stop,char del):
            sequence_rule::base_type(sequence_),
            delimiter_(del),
            start_(start>boost::spirit::qi::omit[*boost::spirit::qi::blank]),
            stop_(boost::spirit::qi::omit[*boost::spirit::qi::blank]>stop)
        {
            sequence_ = start_>(element_rule_ % delimiter_)>stop_;
        }

    };

//end of namespace
}
}