Chris@16: // Copyright Vladimir Prus 2004.
Chris@16: // Distributed under the Boost Software License, Version 1.0.
Chris@16: // (See accompanying file LICENSE_1_0.txt
Chris@16: // or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #ifndef BOOST_CONVERT_HPP_VP_2004_04_28
Chris@16: #define BOOST_CONVERT_HPP_VP_2004_04_28
Chris@16: 
Chris@16: #include <boost/program_options/config.hpp>
Chris@16: 
Chris@16: #if !defined(BOOST_NO_STD_WSTRING)
Chris@16: 
Chris@16: #include <boost/detail/workaround.hpp>
Chris@16: 
Chris@16: #include <string>
Chris@16: #include <vector>
Chris@16: #include <locale>
Chris@16: // for mbstate_t
Chris@16: #include <cwchar>
Chris@16: #include <stdexcept>
Chris@16: 
Chris@16: #if defined(BOOST_NO_STDC_NAMESPACE)
Chris@16: #include <wchar.h>
Chris@16: namespace std
Chris@16: {
Chris@16:     using ::mbstate_t;
Chris@16: }    
Chris@16: #endif
Chris@16: 
Chris@16: namespace boost {
Chris@16: 
Chris@16:     /** Converts from local 8 bit encoding into wchar_t string using
Chris@16:         the specified locale facet. */
Chris@16:     BOOST_PROGRAM_OPTIONS_DECL std::wstring 
Chris@16:     from_8_bit(const std::string& s, 
Chris@16:                const std::codecvt<wchar_t, char, std::mbstate_t>& cvt);
Chris@16: 
Chris@16:     /** Converts from wchar_t string into local 8 bit encoding into using
Chris@16:         the specified locale facet. */
Chris@16:     BOOST_PROGRAM_OPTIONS_DECL std::string 
Chris@16:     to_8_bit(const std::wstring& s, 
Chris@16:              const std::codecvt<wchar_t, char, std::mbstate_t>& cvt);
Chris@16: 
Chris@16: 
Chris@16:     /** Converts 's', which is assumed to be in UTF8 encoding, into wide
Chris@16:         string. */
Chris@16:     BOOST_PROGRAM_OPTIONS_DECL std::wstring
Chris@16:     from_utf8(const std::string& s);
Chris@16:     
Chris@16:     /** Converts wide string 's' into string in UTF8 encoding. */
Chris@16:     BOOST_PROGRAM_OPTIONS_DECL std::string
Chris@16:     to_utf8(const std::wstring& s);
Chris@16: 
Chris@16:     /** Converts wide string 's' into local 8 bit encoding determined by
Chris@16:         the current locale. */
Chris@16:     BOOST_PROGRAM_OPTIONS_DECL std::string
Chris@16:     to_local_8_bit(const std::wstring& s);
Chris@16: 
Chris@16:     /** Converts 's', which is assumed to be in local 8 bit encoding, into wide
Chris@16:         string. */
Chris@16:     BOOST_PROGRAM_OPTIONS_DECL std::wstring
Chris@16:     from_local_8_bit(const std::string& s);
Chris@16: 
Chris@16:     namespace program_options
Chris@16:     {
Chris@16:         /** Convert the input string into internal encoding used by
Chris@16:             program_options. Presence of this function allows to avoid
Chris@16:             specializing all methods which access input on wchar_t.
Chris@16:         */
Chris@16:         BOOST_PROGRAM_OPTIONS_DECL std::string to_internal(const std::string&);
Chris@16:         /** @overload */
Chris@16:         BOOST_PROGRAM_OPTIONS_DECL std::string to_internal(const std::wstring&);
Chris@16: 
Chris@16:         template<class T>
Chris@16:         std::vector<std::string> to_internal(const std::vector<T>& s)
Chris@16:         {
Chris@16:             std::vector<std::string> result;
Chris@16:             for (unsigned i = 0; i < s.size(); ++i)
Chris@16:                 result.push_back(to_internal(s[i]));            
Chris@16:             return result;
Chris@16:         }
Chris@16: 
Chris@16:     }
Chris@16: 
Chris@16: 
Chris@16:   
Chris@16: }
Chris@16: 
Chris@16: #else
Chris@16: #include <vector>
Chris@16: #include <string>
Chris@16: namespace boost{
Chris@16:    namespace program_options{
Chris@16:         BOOST_PROGRAM_OPTIONS_DECL std::string to_internal(const std::string&);
Chris@16: 
Chris@16:         template<class T>
Chris@16:         std::vector<std::string> to_internal(const std::vector<T>& s)
Chris@16:         {
Chris@16:             std::vector<std::string> result;
Chris@16:             for (unsigned i = 0; i < s.size(); ++i)
Chris@16:                 result.push_back(to_internal(s[i]));            
Chris@16:             return result;
Chris@16:         }
Chris@16:    }
Chris@16: }
Chris@16: #endif
Chris@16: #endif