token.cpp

/*
 *  Copyright 2010 William Tisäter. All rights reserved.
 * 
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *    1.  Redistributions of source code must retain the above copyright
 *        notice, this list of conditions and the following disclaimer.
 *
 *    2.  Redistributions in binary form must reproduce the above copyright
 *        notice, this list of conditions and the following disclaimer in the
 *        documentation and/or other materials provided with the distribution.
 *
 *    3.  The name of the copyright holder may not be used to endorse or promote
 *        products derived from this software without specific prior written
 *        permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER ``AS IS'' AND ANY
 *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *  DISCLAIMED. IN NO EVENT SHALL WILLIAM TISÄTER BE LIABLE FOR ANY
 *  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#include "token.h"

Tokens::Tokens(std::string _data, const char * _token)
{
	std::string::size_type pos;
	
	tokens.clear();
	
	_data = strip_break(_data);
	
	pos = _data.find_first_of(_token);
	
	if (pos != std::string::npos)
	{
		while (pos != std::string::npos)
		{
			tokens.push_back(_data.substr(0, pos));
			
			_data = _data.substr(pos + 1);
			pos = _data.find_first_of(_token);
		}
		
		tokens.push_back(_data.substr(0, pos));
	}
	else
	{
		tokens.push_back(_data);
	}
}

std::string Tokens::get_text(int _token)
{
	int i = 0;
	std::string temp, text = "";
	
	for (std::list<std::string>::iterator list = tokens.begin(); list != tokens.end(); ++list)
	{
		if (_token <= i++)
		{
			temp = *list;
			
			text.append(temp);
			text.append(" ");
		}
	}
	
	return text;
}

std::string Tokens::get_token(int _token)
{
	int i = 0;
	
	for (std::list<std::string>::iterator list = tokens.begin(); list != tokens.end(); ++list)
	{
		if (_token == i++)
			return *list;
	}
	
	return "";
}

std::string Tokens::strip_break(std::string _data)
{
	return _data.substr(0, _data.find_last_not_of("\n\r\t ") + 1);
}