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sortix--sortix/libmaxsi/strtok_r.cpp

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/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
This file is part of LibMaxsi.
LibMaxsi is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option)
any later version.
LibMaxsi 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 Lesser General Public License for more
details.
You should have received a copy of the GNU Lesser General Public License
along with LibMaxsi. If not, see <http://www.gnu.org/licenses/>.
strtok_r.cpp
Extract tokens from strings.
*******************************************************************************/
#include <string.h>
extern "C" char* strtok_r(char* str, const char* delim, char** saveptr)
{
if ( !str && !*saveptr )
return NULL;
if ( !str )
str = *saveptr;
str += strspn(str, delim); // Skip leading
if ( !*str )
return *saveptr = NULL;
size_t amount = strcspn(str, delim);
if ( str[amount] )
*saveptr = str + amount + 1;
else
*saveptr = NULL;
str[amount] = '\0';
return str;
}