parsers.h

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/* Author(s)     : Francois Mauger <mauger@lpccaen.in2p3.fr>
 * Creation date : 2016-10-26
 * Last modified : 2017-01-12
 *
 * Copyright (C) 2016-2017 Francois Mauger <mauger@lpccaen.in2p3.fr>
 *
 * This program 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 3 of the License, or (at
 * your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 *
 * Description:
 *
 *   Parsers for variant items.
 *
 */

#ifndef DATATOOLS_CONFIGURATION_PARSERS_H
#define DATATOOLS_CONFIGURATION_PARSERS_H

// Third party:
// - Boost:
#include <boost/spirit/include/qi.hpp>
#include <boost/spirit/include/qi_grammar.hpp>

namespace datatools {

  namespace configuration {

    template <typename Iterator>
    struct registry_name_instance_grammar
      : boost::spirit::qi::grammar<Iterator, std::string()>
    {
      registry_name_instance_grammar()
        : registry_name_instance_grammar::base_type(start)
      {
        namespace qi = boost::spirit::qi;
        // Rule definitions:
        start %= ( qi::char_("a-zA-Z_") >> *qi::char_("a-zA-Z_0-9"));
        return;
      }

      // Rules:
      boost::spirit::qi::rule<Iterator, std::string()> start;
    };

    template <typename Iterator>
    struct variant_name_instance_grammar
      : boost::spirit::qi::grammar<Iterator, std::string()>
    {
      variant_name_instance_grammar()
        : variant_name_instance_grammar::base_type(start)
      {
        namespace qi = boost::spirit::qi;
        // Rule definitions:
        start %= ( qi::char_("a-zA-Z_") >> *qi::char_("a-zA-Z_0-9"));
        return;
      }

      // Rules:
      boost::spirit::qi::rule<Iterator, std::string()> start;
    };

    template <typename Iterator>
    struct param_name_instance_grammar
      : boost::spirit::qi::grammar<Iterator, std::string()>
    {
      param_name_instance_grammar()
        : param_name_instance_grammar::base_type(start)
      {
        namespace qi = boost::spirit::qi;
        // Rule definitions:
        start %= ( qi::char_("a-zA-Z_") >> *qi::char_("a-zA-Z0-9_"))
          >> -( qi::char_('[') >> +qi::digit >> qi::char_(']') );
        return;
      }

      // Rules:
      boost::spirit::qi::rule<Iterator, std::string()> start;
    };

    template <typename Iterator>
    struct group_name_instance_grammar
      : boost::spirit::qi::grammar<Iterator,
                                   std::string()>
    {
      group_name_instance_grammar()
        : group_name_instance_grammar::base_type(start)
      {
        namespace qi = boost::spirit::qi;
        // Rule definitions:
        // instance_name %= ( qi::char_("a-zA-Z_") >> *qi::char_("a-zA-Z_0-9"));
        start %= (
                  subgrpg
                  >> *( qi::char_('/') >> subgrpg)
                  );
        // start %= ( qi::char_("a-zA-Z_") >> *qi::char_("a-zA-Z_0-9"));
        return;
      }

      // Rules:
      boost::spirit::qi::rule<Iterator, std::string()> start;
      variant_name_instance_grammar<Iterator>          subgrpg;
      //boost::spirit::qi::rule<Iterator, std::string()> instance_name;
    };

    template <typename Iterator>
    struct local_param_path_instance_grammar
      : boost::spirit::qi::grammar<Iterator, std::string()>
    {
      local_param_path_instance_grammar()
        : local_param_path_instance_grammar::base_type(start)
      {
        namespace qi = boost::spirit::qi;
        // Rule definitions:
        start %= (
                  pnig
                  >> *( qi::char_('/') >> vnig >> qi::char_('/') >> pnig)
                  );
        return;
      }
      // Rules:
      boost::spirit::qi::rule<Iterator, std::string()> start;
      param_name_instance_grammar<Iterator>            pnig;
      variant_name_instance_grammar<Iterator>          vnig;
    };


    template <typename Iterator>
    struct local_variant_path_instance_grammar
      : boost::spirit::qi::grammar<Iterator, std::string()>
    {
      local_variant_path_instance_grammar()
        : local_variant_path_instance_grammar::base_type(start)
      {
        namespace qi = boost::spirit::qi;
        // Rule definitions:
        start %= (
                  (pnig >> qi::char_('/') >> vnig)
                  >> *( qi::char_('/') >> pnig >> qi::char_('/') >> vnig)
                  );
        return;
      }

      // Rules:
      boost::spirit::qi::rule<Iterator, std::string()> start;
      param_name_instance_grammar<Iterator>            pnig;
      variant_name_instance_grammar<Iterator>          vnig;

    };

    template <typename Iterator>
    struct full_param_path_instance_grammar
      : boost::spirit::qi::grammar<Iterator, std::string()>
    {
      full_param_path_instance_grammar()
        : full_param_path_instance_grammar::base_type(start)
      {
        namespace qi = boost::spirit::qi;
        // Rule definitions:
        start %= (rnig >> qi::char_(':') >> lppig);
        return;
      }
      // Rules:
      boost::spirit::qi::rule<Iterator, std::string()> start;
      registry_name_instance_grammar<Iterator>         rnig;
      local_param_path_instance_grammar<Iterator>      lppig;
    };

    template <typename Iterator>
    struct full_variant_path_instance_grammar
      : boost::spirit::qi::grammar<Iterator, std::string()>
    {
      full_variant_path_instance_grammar()
        : full_variant_path_instance_grammar::base_type(start)
      {
        namespace qi = boost::spirit::qi;
        // Rule definitions:
        start %= (rnig >> qi::char_(':') >> lvpig);
        return;
      }
      // Rules:
      boost::spirit::qi::rule<Iterator, std::string()> start;
      registry_name_instance_grammar<Iterator>         rnig;
      local_variant_path_instance_grammar<Iterator>    lvpig;
    };

    template <typename Iterator>
    struct full_param_value_group_path_instance_grammar
      : boost::spirit::qi::grammar<Iterator, std::string()>
    {
      full_param_value_group_path_instance_grammar()
        : full_param_value_group_path_instance_grammar::base_type(start)
      {
        namespace qi = boost::spirit::qi;
        // Rule definitions:
        start %= (fppig >> qi::char_('@') >> gnig);
        return;
      }
      // Rules:
      boost::spirit::qi::rule<Iterator, std::string()> start;
      full_param_path_instance_grammar<Iterator>       fppig;
      group_name_instance_grammar<Iterator>            gnig;
    };


    template <typename Iterator>
    struct enumerated_string_value_repr_instance_grammar
      : boost::spirit::qi::grammar<Iterator, std::string()>
    {
      enumerated_string_value_repr_instance_grammar()
        : enumerated_string_value_repr_instance_grammar::base_type(start)
      {
        namespace qi = boost::spirit::qi;
        namespace bsa = boost::spirit::ascii;
        // Rule definitions:
        start %= ( +qi::char_ );
        // // Rule definitions:
        // start %= ( qi::char_("a-zA-Z_")
        //            | (
        //               qi::char_("a-zA-Z_")
        //               >> -(+qi::char_("a-zA-Z0-9_:.-/")
        //               >> qi::char_("a-zA-Z0-9_")
        //               )
        //            )
        //   );
        return;
      }

      // Rules:
      boost::spirit::qi::rule<Iterator, std::string()> start;
    };

    template <typename Iterator>
    struct full_param_enum_string_value_path_instance_grammar
      : boost::spirit::qi::grammar<Iterator, std::string()>
    {
      full_param_enum_string_value_path_instance_grammar()
        : full_param_enum_string_value_path_instance_grammar::base_type(start)
      {
        namespace qi = boost::spirit::qi;
        // Rule definitions:
        start %= (fppig >> qi::char_('=') >> esvrig);
        return;
      }
      // Rules:
      boost::spirit::qi::rule<Iterator, std::string()> start;
      full_param_path_instance_grammar<Iterator>       fppig;
      enumerated_string_value_repr_instance_grammar<Iterator> esvrig;
    };

  }  // end of namespace configuration

}  // end of namespace datatools

#endif // DATATOOLS_CONFIGURATION_PARSERS_H

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