Locale.h

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#ifndef ZYPP_LOCALE_H
#define ZYPP_LOCALE_H

#include <iosfwd>

#include "zypp/base/PtrTypes.h"
#include "zypp/base/Tr1hash.h"

#include "zypp/IdString.h"
#include "zypp/LanguageCode.h"
#include "zypp/CountryCode.h"

namespace zypp
{ 

  class Locale;
  typedef std::tr1::unordered_set<Locale> LocaleSet;

  //
  //    CLASS NAME : Locale
  //
  class Locale
  {
    friend std::ostream & operator<<( std::ostream & str, const Locale & obj );

  public:
    class Impl;

  public:
    Locale();

    explicit
    Locale( IdString code_r );

    explicit
    Locale( const std::string & code_r );

    explicit
    Locale( const char * code_r );

    Locale( const LanguageCode & language_r,
            const CountryCode & country_r = CountryCode() );

    ~Locale();

  public:
    static const Locale noCode;

  public:
    const LanguageCode & language() const;
    const CountryCode & country() const;

    std::string code() const;

    std::string name() const;

    Locale fallback() const;

  public:

    static Locale bestMatch( const LocaleSet & avLocales_r, const Locale & requested_r = Locale() );

  private:
    RW_pointer<Impl> _pimpl;
  };

  inline std::ostream & operator<<( std::ostream & str, const Locale & obj )
  { return str << obj.code(); }

  inline bool operator==( const Locale & lhs, const Locale & rhs ) {
    return( lhs.code() == rhs.code() );
  }
  inline bool operator==( const std::string & lhs, const Locale & rhs ) {
    return( lhs == rhs.code() );
  }
  inline bool operator==( const Locale & lhs, const std::string & rhs ) {
    return( lhs.code() == rhs );
  }

  inline bool operator!=( const Locale & lhs, const Locale & rhs ) {
    return( ! operator==( lhs, rhs ) );
  }
  inline bool operator!=( const std::string & lhs, const Locale & rhs ) {
    return( ! operator==( lhs, rhs ) );
  }
  inline bool operator!=( const Locale & lhs, const std::string & rhs ) {
    return( ! operator==( lhs, rhs ) );
  }

} // namespace zypp

namespace std { namespace tr1 {
  template<> struct hash< ::zypp::Locale>
  {
    size_t operator()( const ::zypp::Locale & __s ) const
    { return hash<std::string>()(__s.code()); }
  };
}}

namespace std
{ 

  template<>
    inline bool less<zypp::Locale>::operator()( const zypp::Locale & lhs, const zypp::Locale & rhs ) const
    { return lhs.code() < rhs.code(); }
} // namespace std
#endif // ZYPP_LOCALE_H