********************************************************************************
*
*	Support of PR1ME INFORMATION subroutine '!MATCHES'
*
*	Module	%M%	Version	%I% 	Date	%H%
*
*	(c) Copyright 1998 Ardent Software Inc. - All Rights Reserved
*	This is unpublished proprietary source code of Ardent Software Inc.
*	The copyright notice above does not evidence any actual or intended
*	publication of such source code.
*
*******************************************************************************
*
*	Maintenence log - insert most recent change descriptions at top
*
*	Date.... GTAR# WHO Description.........................................
*	10/14/98 23801 SAP Change copyrights. 
*	09/07/93 12299 LA  Initial implementation.
*
*******************************************************************************

$OPTIONS DEFAULT

subroutine PR1ME(ANSWER, A, B)

      EQU DEFAULTA TO ''
      EQU DEFAULTB TO ''
*
      ANSWER=''
* CHECK FOR REUSE OF A AND B
      A.REP = SYSTEM(1020, A)
      B.REP = SYSTEM(1020, B)

*
*
      A=A
      B=B
*
*
A:
      REMOVE AA FROM A SETTING ALIM
B:
      REMOVE BB FROM B SETTING BLIM
MARK:
      MARK=IF ALIM >= BLIM THEN ALIM ELSE BLIM
      DELIM=CHAR(256-MARK)
ASSIGN:
      ANSWER:=(AA MATCHES BB) : DELIM
CHECK:
      IF ALIM=BLIM THEN
         IF ALIM=0 THEN GOTO DONE
         GOTO A
      END
      IF ALIM>BLIM THEN
         IF NOT(B.REP) THEN BB=DEFAULTB
         GOTO NEXTB
      END
      IF ALIM<BLIM THEN
         IF NOT(A.REP) THEN AA=DEFAULTA
         GOTO B
      END
*
NEXTB:
      REMOVE AA FROM A SETTING ALIM
      GOTO MARK


DONE:
      ANSWER=ANSWER[1,LEN(ANSWER)-1]
      RETURN

END