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NATURAL trick: Calling REXX directly from within NATURAL

 
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ofer71

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Joined: 27 Dec 2005
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Location: Israel

PostPosted: Tue Jan 17, 2006 12:20 pm    Post subject: NATURAL trick: Calling REXX directly from within NATURAL
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Here is an example of executing a REXX exec directly from NATURAL under TSO or batch.
This example uses IRXJCL, which is the REXX standard routine for invoking REXX in MVS batch. The IRXJCL routine documented in the REXX Reference manual.
I put "directly", as opposed to other ways of executing REXX from within NATURAL. I will post the other ways in separate posts.

The NATURAL program:
Code:

DEFINE DATA LOCAL                       
1 #REXX-PARM                           
  2 #LEN (B2)                           
  2 #PARM (A80)                         
END-DEFINE                             
*                                       
#PARM := 'FROMNAT OFERF.A.REXX(FROMNAT)'
#LEN  := 80                             
*                                       
CALL 'IRXJCL' #LEN #PARM               
*                                       
END                                     


The REXX (this is an example only, you can execute any REXX):
Code:

/*------------------------------- REXX ------------------------------- 
 * PROGRAM   : FROMNAT                                                 
 * FUNCTION  : CALLED FROM NATURAL. ACCEPTS DS NAME AND VIEW IT.       
 * AUTHOR    : OFER                                                     
 * DATE      : 15/12/03                                                 
 * HOW TO USE:                                                         
 *           :                                                         
 *------------------------------------------------------------------*/ 
                                                                       
ARG DS                                                                 
                                                                       
DS = STRIP(DS,"B","'")                                                 
DS = STRIP(DS)                                                         
                                                                       
ADDRESS ISPEXEC "CONTROL ERRORS RETURN"                                 
ADDRESS ISPEXEC "VIEW DATASET('"DS"')"                                 
                                                                       
EXIT                                                                   
                                                                       


O.
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