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/*
* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston MA 02111-1307, USA.
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
*/
/**********************************************************
*
* OS Testing - Silicon Graphics, Inc.
*
* FUNCTION NAME : string_to_tokens
*
* FUNCTION TITLE : Break a string into its tokens
*
* SYNOPSIS:
*
* int string_to_tokens(arg_string, arg_array, array_size, separator)
* char *arg_string;
* char *arg_array[];
* int array_size;
* char *separator;
*
* AUTHOR : Richard Logan
*
* DATE : 10/94
*
* INITIAL RELEASE : UNICOS 7.0
*
* DESCRIPTION
* This function parses the string 'arg_string', placing pointers to
* the 'separator' separated tokens into the elements of 'arg_array'.
* The array is terminated with a null pointer.
* 'arg_array' must contains at least 'array_size' elements.
* Only the first 'array_size' minus one tokens will be placed into
* 'arg_array'. If there are more than 'array_size'-1 tokens, the rest are
* ignored by this routine.
*
* RETURN VALUE
* This function returns the number of 'separator' separated tokens that
* were found in 'arg_string'.
* If 'arg_array' or 'separator' is NULL or 'array_size' is less than 2, -1 is returned.
*
* WARNING
* This function uses strtok() to parse 'arg_string', and thus
* physically alters 'arg_string' by placing null characters where the
* separators originally were.
*
*
*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#**/
#include <stdio.h>
#include <string.h> /* for string functions */
#include "string_to_tokens.h"
int
string_to_tokens(char *arg_string, char *arg_array[], int array_size, char *separator)
{
int num_toks = 0; /* number of tokens found */
char *strtok();
if ( arg_array == NULL || array_size <= 1 || separator == NULL )
return -1;
/*
* Use strtok() to parse 'arg_string', placing pointers to the
* individual tokens into the elements of 'arg_array'.
*/
if ( (arg_array[num_toks] = strtok(arg_string, separator)) == NULL ) {
return 0;
}
for (num_toks=1;num_toks<array_size; num_toks++) {
if ( (arg_array[num_toks] = strtok(NULL, separator)) == NULL )
break;
}
if ( num_toks == array_size )
arg_array[num_toks] = NULL;
/*
* Return the number of tokens that were found in 'arg_string'.
*/
return(num_toks);
} /* end of string_to_tokens */
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