/** Utilities.
 *
 * @author Daniel Krebs <github@daniel-krebs.net>
 * @copyright 2017-2018, Institute for Automation of Complex Power Systems, EONERC
 * @license GNU General Public License (version 3)
 *
 * VILLASfpga
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *********************************************************************************/

#include <vector>
#include <string>

#include <villas/utils.hpp>

namespace villas {
namespace utils {

std::vector<std::string>
tokenize(std::string s, std::string delimiter)
{
	std::vector<std::string> tokens;

	size_t lastPos = 0;
	size_t curentPos;

	while((curentPos = s.find(delimiter, lastPos)) != std::string::npos) {
		const size_t tokenLength = curentPos - lastPos;
		tokens.push_back(s.substr(lastPos, tokenLength));

		// advance in string
		lastPos = curentPos + delimiter.length();
	}

	// check if there's a last token behind the last delimiter
	if(lastPos != s.length()) {
		const size_t lastTokenLength = s.length() - lastPos;
		tokens.push_back(s.substr(lastPos, lastTokenLength));
	}

	return tokens;
}

} // namespace utils
} // namespace villas