$include (..\lib\compStch.ext)

/*
 *============================================================================
 *  This program 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
 *
 *  Permission to use for any purpose, modify, copy, and make enhancements
 *  and derivative works of the software is granted if attribution is given to
 *  R.M. Gillmore, dba the ACME Software Deli, as the author
 *
 *  While the ACME Software Deli does not work for money, there is nonetheless
 *  a significant amount of work involved.  The ACME Software Deli maintains the
 *  rights to all code written, though it may be used and distributed as long as
 *  the following conditions are maintained.
 *
 *  1.  The copyright statement at the top of each code block is maintained in
 *      your distribution.
 *  2.  You do not identify yourself as the ACME Software Deli
 *  3.  Any changes made to the software are sent to the ACME Software Deli
 *============================================================================
 */


strMatchModule:
do;
$if not noID
declare IDString	(*) byte data
	( '@(#)strlwr.p86    $Author: rmgillmore $ $Date:: 2025-05-04 19:35:39#$:', 0 );
$endif

$set ( strMatchSource )
$include (..\lib\ptrMath.ext)
$include (..\lib\string.ext)

stringMatch:
procedure ( patternPtr, stringPtr ) boolean reentrant public;
	declare patternPtr		pointer,
			patternChar		based	patternPtr	char,
			stringPtr		pointer,
			stringChar		based	stringPtr	char;

	if ( patternChar = 0 ) then do;
		return ( stringChar = 0 );
	end;
	else if ( patternChar = '*' ) then do;
		return stringMatch( stringPtr,
					incPtr( patternPtr, size( patternChar ), 1 ) ) or
			( ( stringChar <> 0 ) and
				stringMatch( incPtr( stringPtr,
					size( stringChar ), 1 ), patternPtr ) );
	end;
	else if ( patternChar = '?' ) then do;
		return ( stringChar <> 0 ) and
			stringMatch( incPtr( stringPtr, size( stringChar ), 1 ),
						incPtr( patternPtr, size( patternChar ), 1 ) );
	end;
	else do;
		return ( patternChar = stringChar ) and
			stringMatch( incPtr( stringPtr, size( stringChar ), 1 ),
						incPtr( patternPtr, size( patternChar ), 1 ) );
	end;
end stringMatch;

end strMatchModule;