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