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.