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StringTokenizer.cpp

//
// StringTokenizer.cpp
//
// $Id: //poco/1.2/Foundation/src/StringTokenizer.cpp#1 $
//
// Library: Foundation
// Package: Core
// Module:  StringTokenizer
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
// 
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//


#include "Poco/StringTokenizer.h"
#include <locale>


namespace Poco {


StringTokenizer::StringTokenizer(const std::string& str, const std::string& separators, int options)
{
      std::locale loc;
      std::string::const_iterator it1 = str.begin();
      std::string::const_iterator it2;
      std::string::const_iterator it3;
      std::string::const_iterator end = str.end();
      
      while (it1 != end)
      {
            if (options & TOK_TRIM)
            {
                  while (it1 != end && std::isspace(*it1, loc)) ++it1;
            }
            it2 = it1;
            while (it2 != end && separators.find(*it2) == std::string::npos) ++it2;
            it3 = it2;
            if (it3 != it1 && (options & TOK_TRIM))
            {
                  --it3;
                  while (it3 != it1 && std::isspace(*it3, loc)) --it3;
                  if (!std::isspace(*it3, loc)) ++it3;
            }
            if (options & TOK_IGNORE_EMPTY)
            {
                  if (it3 != it1)
                        _tokens.push_back(std::string(it1, it3));
            }
            else
            {
                  _tokens.push_back(std::string(it1, it3));
            }
            it1 = it2;
            if (it1 != end) ++it1;
      }
}


00082 StringTokenizer::~StringTokenizer()
{
}


} // namespace Poco

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