.. _program_listing_file_src_tap_algorithms_strtok.cpp:

Program Listing for File strtok.cpp
===================================

|exhale_lsh| :ref:`Return to documentation for file <file_src_tap_algorithms_strtok.cpp>` (``src/tap/algorithms/strtok.cpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   /*
    * Copyright (c) 2020-2021 Advanced Robotics at the University of Washington <robomstr@uw.edu>
    *
    * This file is part of Taproot.
    *
    * Taproot 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
    * (at your option) any later version.
    *
    * Taproot 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 Taproot.  If not, see <https://www.gnu.org/licenses/>.
    */
   
   #ifndef __DOXYGEN__
   
   #include "strtok.hpp"
   
   #include <cstring>
   
   char *strtokR(char *s, const char *delim, char **savePtr)
   {
       char *end;
   
       if (s == nullptr)
       {
           s = *savePtr;
       }
   
       if (*s == '\0')
       {
           *savePtr = s;
           return nullptr;
       }
   
       s += strspn(s, delim);
       if (*s == '\0')
       {
           *savePtr = s;
           return nullptr;
       }
   
       end = s + strcspn(s, delim);
       if (*end == '\0')
       {
           *savePtr = end;
           return s;
       }
   
       *end = '\0';
       *savePtr = end + 1;
       return s;
   }
   
   #endif