Initial work for G-code sender and more intensive usage of Boost

xs/include/boost/test/utils/runtime/cla/parser.hpp

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+//  (C) Copyright Gennadiy Rozental 2005-2008.
+//  Use, modification, and distribution are subject to 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)
+
+//  See http://www.boost.org/libs/test for the library home page.
+//
+//  File        : $RCSfile$
+//
+//  Version     : $Revision: 57992 $
+//
+//  Description : defines parser - public interface for CLA parsing and accessing
+// ***************************************************************************
+
+#ifndef BOOST_RT_CLA_PARSER_HPP_062604GER
+#define BOOST_RT_CLA_PARSER_HPP_062604GER
+
+// Boost.Runtime.Parameter
+#include <boost/test/utils/runtime/config.hpp>
+#include <boost/test/utils/runtime/fwd.hpp>
+#include <boost/test/utils/runtime/argument.hpp>
+
+#include <boost/test/utils/runtime/cla/fwd.hpp>
+#include <boost/test/utils/runtime/cla/modifier.hpp>
+#include <boost/test/utils/runtime/cla/argv_traverser.hpp>
+
+// Boost
+#include <boost/optional.hpp>
+
+// STL
+#include <list>
+
+namespace boost {
+
+namespace BOOST_RT_PARAM_NAMESPACE {
+
+namespace cla {
+
+// ************************************************************************** //
+// **************             runtime::cla::parser             ************** //
+// ************************************************************************** //
+
+namespace cla_detail {
+
+template<typename Modifier>
+class global_mod_parser {
+public:
+    global_mod_parser( parser& p, Modifier const& m )
+    : m_parser( p )
+    , m_modifiers( m )
+    {}
+
+    template<typename Param>
+    global_mod_parser const&
+    operator<<( shared_ptr<Param> param ) const
+    {
+        param->accept_modifier( m_modifiers );
+
+        m_parser << param;
+
+        return *this;
+    }
+
+private:
+    // Data members;
+    parser&             m_parser;
+    Modifier const&     m_modifiers;
+};
+
+}
+
+// ************************************************************************** //
+// **************             runtime::cla::parser             ************** //
+// ************************************************************************** //
+
+class parser {
+public:
+    typedef std::list<parameter_ptr>::const_iterator param_iterator;
+
+    // Constructor
+    explicit            parser( cstring program_name = cstring() );
+
+    // parameter list construction interface
+    parser&             operator<<( parameter_ptr param );
+
+    // parser and global parameters modifiers
+    template<typename Modifier>
+    cla_detail::global_mod_parser<Modifier>
+    operator-( Modifier const& m )
+    {
+        nfp::optionally_assign( m_traverser.p_separator.value, m, input_separator );
+        nfp::optionally_assign( m_traverser.p_ignore_mismatch.value, m, ignore_mismatch_m );
+
+        return cla_detail::global_mod_parser<Modifier>( *this, m );
+    }
+
+    // input processing method
+    void                parse( int& argc, char_type** argv );
+
+    // parameters access
+    param_iterator      first_param() const;
+    param_iterator      last_param() const;
+
+    // arguments access
+    const_argument_ptr  operator[]( cstring string_id ) const;
+    cstring             get( cstring string_id ) const;    
+
+    template<typename T>
+    T const&            get( cstring string_id ) const
+    {
+        return arg_value<T>( valid_argument( string_id ) );
+    }
+
+    template<typename T>
+    void                get( cstring string_id, boost::optional<T>& res ) const
+    {
+        const_argument_ptr actual_arg = (*this)[string_id];
+
+        if( actual_arg )
+            res = arg_value<T>( *actual_arg );
+        else
+            res.reset();
+    }
+
+    // help/usage
+    void                usage( out_stream& ostr );
+    void                help(  out_stream& ostr );
+
+private:
+    argument const&     valid_argument( cstring string_id ) const;
+
+    // Data members
+    argv_traverser              m_traverser;
+    std::list<parameter_ptr>    m_parameters;
+    dstring                     m_program_name;
+};
+
+//____________________________________________________________________________//
+
+} // namespace cla
+
+} // namespace BOOST_RT_PARAM_NAMESPACE
+
+} // namespace boost
+
+#ifndef BOOST_RT_PARAM_OFFLINE
+
+#  define BOOST_RT_PARAM_INLINE inline
+#  include <boost/test/utils/runtime/cla/parser.ipp>
+
+#endif
+
+#endif // BOOST_RT_CLA_PARSER_HPP_062604GER