rexx-things/modules/api/c++/call.example/backward.fnc
2025-03-12 20:50:48 +00:00

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/*----------------------------------------------------------------------------*/
/* */
/* Copyright (c) 1995, 2004 IBM Corporation. All rights reserved. */
/* Copyright (c) 2005-2014 Rexx Language Association. All rights reserved. */
/* */
/* This program and the accompanying materials are made available under */
/* the terms of the Common Public License v1.0 which accompanies this */
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/* without modification, are permitted provided that the following */
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/* notice, this list of conditions and the following disclaimer. */
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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, */