| // |
| // 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) |
| // |
| |
| // |
| // ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! |
| // |
| // BIG FAT WARNING FOR Microsoft Visual Studio Users |
| // |
| // YOU NEED TO CONVERT THIS SOURCE FILE ENCODING TO UTF-8 WITH BOM ENCODING. |
| // |
| // Unfortunately MSVC understands that the source code is encoded as |
| // UTF-8 only if you add useless BOM in the beginning. |
| // |
| // So, before you compile "wide" examples with MSVC, please convert them to text |
| // files with BOM. There are two very simple ways to do it: |
| // |
| // 1. Open file with Notepad and save it from there. It would convert |
| // it to file with BOM. |
| // 2. In Visual Studio go File->Advances Save Options... and select |
| // Unicode (UTF-8 with signature) Codepage 65001 |
| // |
| // Note: once converted to UTF-8 with BOM, this source code would not |
| // compile with other compilers, because no-one uses BOM with UTF-8 today |
| // because it is absolutely meaningless in context of UTF-8. |
| // |
| // ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! |
| // |
| #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); |
| wcout.imbue(loc); |
| |
| // This is needed to prevent C library to |
| // convert strings to narrow |
| // instead of C++ on some platforms |
| std::ios_base::sync_with_stdio(false); |
| |
| |
| wcout<<L"Correct case conversion can't be done by simple, character by character conversion"<<endl; |
| wcout<<L"because case conversion is context sensitive and not 1-to-1 conversion"<<endl; |
| wcout<<L"For example:"<<endl; |
| wcout<<L" German grüßen correctly converted to "<<to_upper(L"grüßen")<<L", instead of incorrect " |
| <<boost::to_upper_copy(std::wstring(L"grüßen"))<<endl; |
| wcout<<L" where ß is replaced with SS"<<endl; |
| wcout<<L" Greek ὈΔΥΣΣΕΎΣ is correctly converted to "<<to_lower(L"ὈΔΥΣΣΕΎΣ")<<L", instead of incorrect " |
| <<boost::to_lower_copy(std::wstring(L"ὈΔΥΣΣΕΎΣ"))<<endl; |
| wcout<<L" where Σ is converted to σ or to ς, according to position in the word"<<endl; |
| wcout<<L"Such type of conversion just can't be done using std::toupper that work on character base, also std::toupper is "<<endl; |
| wcout<<L"not fully applicable when working with variable character length like in UTF-8 or UTF-16 limiting the correct "<<endl; |
| wcout<<L"behavoir to BMP or ASCII only"<<endl; |
| |
| } |
| |
| // vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4 |
| |
| // boostinspect:noascii |