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sortix--sortix/libc/string/strsep.c
Jonas 'Sortie' Termansen 01b59c1947 Convert libc to C.
2016-03-03 23:02:23 +01:00

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1.3 KiB
C

/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2014.
This file is part of the Sortix C Library.
The Sortix C Library 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.
The Sortix C Library 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 the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
string/strsep.c
Extract a token from a string.
*******************************************************************************/
#include <string.h>
char* strsep(char** string_ptr, const char* delim)
{
char* token = *string_ptr;
if ( !token )
return NULL;
size_t token_length = strcspn(token, delim);
if ( token[token_length] )
{
token[token_length++] = '\0';
*string_ptr = token + token_length;
}
else
{
*string_ptr = (char*) NULL;
}
return token;
}