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  • Subject: Re: imbedded CL in RPG
  • From: dhandy@xxxxxxxxxxx (Douglas Handy)
  • Date: Tue, 10 Aug 1999 04:00:36 GMT

John,

>Now you are getting close to what I wanted from Toronto in the following.
>
>       CL      BEGCL
>CL     SNDPGMMSG XXXXXXXXXXXXX
>CL     MONMSG(CPFXXXX)
>CL             ENDCL

Why not just make a subprocedure, RunCmd() or whatever, that accepts a
string expression.  But instead of calling QCmdExc, have it call
QCAPCMD to run the command.  Then you can easily get the msgid of an
escape message to pass back as a return value.  This would let you add
a SELECT group following the RunCmd(...) to take action based on the
escape message.  

Something like:

     C                   Eval      ErrMsgId = RunCmd( 'SNDPGMMSG ' + 
     C                                                MsgText + ...)
     C                   Select
     C                   When      ErrMsgId = 'CPF1234'
     C                   ...
     C                   When      ErrMsgId = 'CPF5678'
     C                   ...
     C                   When      %subst( ErrMsgId: 1: 5 ) = 'CPF90'
     C                   ...
     C                   Endsl

This could be done quite easity now, even on V3R2 systems, and placed
in a service program.

As I've often said, subprocedures are the best thing to happen to RPG
yet, and let us extend the language ourself instead of waiting for
Toronto.  (At least in cases like this -- not everything is doable
yet.)

Doug
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