# Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

# wboundary.cpp

Example of using segment_index over wide strings

    //
    //  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 <iostream>
    #include <cassert>
    #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);

        wstring text=L"Hello World! あにま! Linux2.6 and Windows7 is word and number. שָלוֹם עוֹלָם!";

        wcout<<text<<endl;

        boundary::wssegment_index index(boundary::word,text.begin(),text.end());
        boundary::wssegment_index::iterator p,e;

        for(p=index.begin(),e=index.end();p!=e;++p) {
            wcout<<L"Part ["<<*p<<L"] has ";
            if(p->rule() & boundary::word_number)
                wcout<<L"number(s) ";
            if(p->rule() & boundary::word_letter)
                wcout<<L"letter(s) ";
            if(p->rule() & boundary::word_kana)
                wcout<<L"kana character(s) ";
            if(p->rule() & boundary::word_ideo)
                wcout<<L"ideographic character(s) ";
            if(p->rule() & boundary::word_none)
                wcout<<L"no word characters";
            wcout<<endl;
        }

        index.map(boundary::character,text.begin(),text.end());

        for(p=index.begin(),e=index.end();p!=e;++p) {
            wcout<<L"|" <<*p ;
        }
        wcout<<L"|\n\n";

        index.map(boundary::line,text.begin(),text.end());

        for(p=index.begin(),e=index.end();p!=e;++p) {
            wcout<<L"|" <<*p ;
        }
        wcout<<L"|\n\n";

        index.map(boundary::sentence,text.begin(),text.end());

        for(p=index.begin(),e=index.end();p!=e;++p) {
            wcout<<L"|" <<*p ;
        }
        wcout<<"|\n\n";

    }

    // vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4

    // boostinspect:noascii