text: 
  //  Copyright (c) 2003-2020 Xsens Technologies B.V. or subsidiaries worldwide.
  //  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.	Neither the names of the copyright holders nor the names of their contributors
  //  	may be used to endorse or promote products derived from this software without
  //  	specific prior written permission.
  //  
  //  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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
  //  THE COPYRIGHT HOLDERS OR CONTRIBUTORS 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.THE LAWS OF THE NETHERLANDS 
  //  SHALL BE EXCLUSIVELY APPLICABLE AND ANY DISPUTES SHALL BE FINALLY SETTLED UNDER THE RULES 
  //  OF ARBITRATION OF THE INTERNATIONAL CHAMBER OF COMMERCE IN THE HAGUE BY ONE OR MORE 
  //  ARBITRATORS APPOINTED IN ACCORDANCE WITH SAID RULES.
  //  
  
  
  //  Copyright (c) 2003-2020 Xsens Technologies B.V. or subsidiaries worldwide.
  //  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.	Neither the names of the copyright holders nor the names of their contributors
  //  	may be used to endorse or promote products derived from this software without
  //  	specific prior written permission.
  //  
  //  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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
  //  THE COPYRIGHT HOLDERS OR CONTRIBUTORS 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.THE LAWS OF THE NETHERLANDS 
  //  SHALL BE EXCLUSIVELY APPLICABLE AND ANY DISPUTES SHALL BE FINALLY SETTLED UNDER THE RULES 
  //  OF ARBITRATION OF THE INTERNATIONAL CHAMBER OF COMMERCE IN THE HAGUE BY ONE OR MORE 
  //  ARBITRATORS APPOINTED IN ACCORDANCE WITH SAID RULES.
  //  
  
  #ifndef IDFETCHHELPERS_H
  #define IDFETCHHELPERS_H
  
  #include <regex>
  #include <xstypes/xsdeviceid.h>
  #include <algorithm>
  
  /* Helper functions for fetching of device/vendor/product ids from text strings */
  
  /* Get the first match for _regex_ within _string_ */
  static inline std::string searchOne(std::string const& string, std::string const& regex)
  {
  	std::smatch sm;
  	std::regex_search(string, sm, std::regex(regex));
  	if (sm.size() < 2)
  		return std::string();
  	return sm[1];
  }
  
  /* Fetch the device ID from the given device path */
  static inline XsDeviceId deviceIdFromDevPath(std::string const& devpath)
  {
  	XsDeviceId deviceId;
  	std::string id = searchOne(devpath, "([0-9A-Fa-f]*)$");
  	if (!id.empty())
  		deviceId.fromString(XsString(id));
  	return deviceId;
  }
  
  /* Fetch the vendor ID from the given string */
  static inline uint16_t vidFromString(std::string const& string)
  {
  	try
  	{
  		std::string regex = string;
  		std::transform(regex.begin(), regex.end(), regex.begin(), ::toupper);
  		auto t1 = searchOne(regex, "VID_([0-9a-fA-F]{4}).*PID_.*");
  		if (t1.empty())	// prevent unnecessary exceptions
  			return 0;
  		return static_cast<uint16_t>(std::stoi(t1, nullptr, 16));
  	}
  	catch (std::invalid_argument &)
  	{
  		return 0;
  	}
  }
  
  /* Fetch the product ID from the given string */
  static inline uint16_t pidFromString(std::string const& string)
  {
  	try
  	{
  		std::string regex = string;
  		std::transform(regex.begin(), regex.end(), regex.begin(), ::toupper);
  		auto t1 = searchOne(regex, "VID_.*PID_([0-9a-fA-F]{4})");
  		if (t1.empty())	// prevent unnecessary exceptions
  			return 0;
  		return static_cast<uint16_t>(std::stoi(t1, nullptr, 16));
  	}
  	catch (std::invalid_argument &)
  	{
  		return 0;
  	}
  }
  
  #endif
  