Boost.Locale: conversions.cpp

//

//  Copyright (c) 2009-2011 Artyom Beilis (Tonkikh)

//

//  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)

//

#include <boost/locale.hpp>

#include <boost/algorithm/string/case_conv.hpp>

#include <iostream>


#include <ctime>


int main()

{

    using namespace boost::locale;

    using namespace std;

    // Create system default locale

    generator gen;

    locale loc=gen("");

    locale::global(loc);

    cout.imbue(loc);


    cout<<"Correct case conversion can't be done by simple, character by character conversion"<<endl;

    cout<<"because case conversion is context sensitive and not 1-to-1 conversion"<<endl;

    cout<<"For example:"<<endl;

    cout<<"   German grüßen correctly converted to "<<to_upper("grüßen")<<", instead of incorrect "

                    <<boost::to_upper_copy(std::string("grüßen"))<<endl;

    cout<<"     where ß is replaced with SS"<<endl;

    cout<<"   Greek ὈΔΥΣΣΕΎΣ is correctly converted to "<<to_lower("ὈΔΥΣΣΕΎΣ")<<", instead of incorrect "

                    <<boost::to_lower_copy(std::string("ὈΔΥΣΣΕΎΣ"))<<endl;

    cout<<"     where Σ is converted to σ or to ς, according to position in the word"<<endl;

    cout<<"Such type of conversion just can't be done using std::toupper that work on character base, also std::toupper is "<<endl;

    cout<<"not even applicable when working with variable character length like in UTF-8 or UTF-16 limiting the correct "<<endl;

    cout<<"behavior to unicode subset BMP or ASCII only"<<endl;


}


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// boostinspect:noascii