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Enhance CL/ILE CALLPRC command to support External Programs
Via prototype and the EXTPGM keyword, RPG/ILE is able to invoke external programs using the CALLP op code. This has several advantages over the RPG CALL op code and I would like to be able to use at least one of those advantages in CL/ILE programming. That advantage is the use of the *OMIT special value in the parameter list.
CL/ILE and the CALLPRC command are analogous to the RPG/ILE CALLP op code except that CALLPRC cannot invoke external programs -- even though CALLPRC also supports the *OMIT special value in its parameter list. It seems to me that it would be a relatively simple matter to enhance the CALLPRC command to include the ability to invoke external programs.
In lieu of creating prototype support for CL/ILE, additional parameters can be added to the CALLPRC command to support prototype-like features where they make sense. For example:
CALLPRC ... EXTPGM(*YES) /* mutually exclusive of the RTNVAR + parm and with a default of *NO for backward compatibility */
-- or --
CALLPRC ... EXTPGM(name) /* mutually exclusive of the RTNVAR + parm and with a default of *NONE for backward compatibility */
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