70 lines
2.3 KiB
Plaintext
70 lines
2.3 KiB
Plaintext
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subroutine INDIRECT( result, pib, sib, pob, sob, obn, reference )
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*******************************************************************************
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*
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* INDIRECT Resolves indirect buffer references (user exit)
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*
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* Module %M% Version %I% Date %H%
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*
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* (c) Copyright 1998 Ardent Software Inc. - All Rights Reserved
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* This is unpublished proprietary source code of Ardent Software Inc.
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* The copyright notice above does not evidence any actual or intended
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* publication of such source code.
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*
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*******************************************************************************
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*
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* Maintenence log - insert most recent change descriptions at top
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*
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* Date.... GTAR# WHO Description.........................................
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* 10/14/98 23801 SAP Change copyrights.
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* 07/25/88 - - Maintenence log purged at 5.2.1, see release 5.1.10.
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*
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*******************************************************************************
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*
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* This routine provides the user exits with an indirect reference
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* capability. If the reference is not a well-formed indirect reference,
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* then it is returned itself as the result. If it is a well-formed
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* indirect reference, then the links are chased, and the final value is
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* returned as the result.
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*
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* Arguments to this subroutine are:
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* result - the returned value
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* pib - the primary input buffer
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* sib - the secondary input buffer
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* pob - the primary output buffer
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* sob - the secondary output buffer
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* obn - the current output buffer number (0 = primary;
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* 1 = secondary)
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* reference - the indirect reference to be resolved
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*
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*****************************************************************************/
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result = reference
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BEGIN CASE
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CASE reference[ 1, 1 ] = "%"
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*
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* Reference through primary input buffer
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*
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CALL $INDIRECT( result, pib, sib, pob, sob, obn, reference[ 2, 99999 ])
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result = pib< result >
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CASE reference[ 1, 1 ] = "#"
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*
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* Reference through an output buffer
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*
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CALL $INDIRECT( result, pib, sib, pob, sob, obn, reference[ 2, 99999 ])
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IF obn THEN
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result = sob< result >
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END ELSE
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result = pob< result >
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END
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CASE 1
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*
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* literal reference
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*
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result = reference
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END CASE
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RETURN
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END
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