Boost.Locale: conversions.cpp

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conversions.cpp

Example of using various text conversion functions.

//
// 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;
}
// vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4
// boostinspect:noascii
- © Copyright 2009-2012 Artyom Beilis, Distributed under the Boost Software License, Version 1.0.