// Copyright Vladimir Prus 2004.

 // Distributed under the Boost Software License, Version 1.0.

 // (See accompanying file LICENSE_1_0.txt

 // or copy at http://www.boost.org/LICENSE_1_0.txt)

 #ifndef BOOST_OPTION_HPP_VP_2004_02_25

 #define BOOST_OPTION_HPP_VP_2004_02_25

 #include <boost/program_options/config.hpp>

 #include <string>

 #include <vector>

 namespace boost { namespace program_options {

     /** Option found in input source.

         Contains a key and a value. The key, in turn, can be a string (name of

         an option), or an integer (position in input source) -- in case no name

         is specified. The latter is only possible for command line.

         The template parameter specifies the type of char used for storing the

         option's value.

     */

     template<class charT>

     class basic_option {

     public:

         basic_option() : position_key(-1), unregistered(false) {}

         basic_option(const std::string& string_key, 

                const std::vector< std::string> &value) 

         : string_key(string_key), value(value), unregistered(false)

         {}

         /** String key of this option. Intentionally independent of the template

             parameter. */

         std::string string_key;

         /** Position key of this option. All options without an explicit name are

             sequentially numbered starting from 0. If an option has explicit name,

             'position_key' is equal to -1. It is possible that both

             position_key and string_key is specified, in case name is implicitly

             added.

          */

         int position_key;

         /** Option's value */

         std::vector< std::basic_string<charT> > value;

         /** The original unchanged tokens this option was

             created from. */

         std::vector< std::basic_string<charT> > original_tokens;

         /** True if option was not recognized. In that case,

             'string_key' and 'value' are results of purely

             syntactic parsing of source. The original tokens can be

             recovered from the "original_tokens" member.

         */

         bool unregistered;

     };

     typedef basic_option<char> option;

     typedef basic_option<wchar_t> woption;

 }}

 #endif