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/*                                                                            */
/* Copyright (c) 1995, 2004 IBM Corporation. All rights reserved.             */
/* Copyright (c) 2005-2014 Rexx Language Association. All rights reserved.    */
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/* the terms of the Common Public License v1.0 which accompanies this         */
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/*********************************************************************/
/*                                                                   */
/* backward.fnc - Reverse the words in a string                      */
/*                                                                   */
/* This program is from the traditional, classic API example,        */
/* callrxnt.  Here it can be used by the runRexxProgram to           */
/* demonstrate calling a program using the C++ native APIs.          */
/*                                                                   */
/* Input:  A string of words                                         */
/*                                                                   */
/* Output: A string containing the same words but in opposite order  */
/*                                                                   */
/*********************************************************************/

say; say "backward.fnc --> start @" .DateTime~new~string
Parse Arg Data                         /* get argument string        */
say 'The string:'
say ' ' Data
OutString = ''                         /* initialize output to empty */
Count = Words(Data)                    /* find number of words       */
Do i = Count To 1 By -1                /* for each word in string    */
   OutString = OutString Word(Data,i)  /* add word to output string  */
   End /* end do */

OutString = Strip(OutString)           /* remove any blanks on the   */
                                       /* front or back.             */
say 'when reversed is:'
say ' ' OutString
say "backward.fnc --> finished @" .DateTime~new~string; say

Return OutString                       /* return reversed string,    */