Try a technique like that illustrated in this example:
Macro , Defined in the source program
&L READ &A,&B,&C
READ_XX OpSyn READ Save Wrapper's definition as READ_XX
READ OpSyn , Nullify this macro's definition
- - - ...perform 'front-end' processing
&L READ &A1,&B1,&C1 Call system version of READ
- - - ...perform 'back-end' processing
READ OpSyn READ_XX Re-establish Wrapper's definition
MEnd- Re: OPSYN Self Execution John Ehrman
- Re: OPSYN Self Execution Tony Harminc
- Re: OPSYN Self Execution Jonathan Scott
- Re: OPSYN self execution glen herrmannsfeldt
- Automatic reply: OPSYN self execut... Evans, James R. (RET-DAY)
- Re: OPSYN self execution Jonathan Scott
- Re: OPSYN self execution John Gilmore
- Re: OPSYN self execution Bodoh John Robert [Contractor]
- Automatic reply: OPSYN sel... Steve Hazzard
- Re: OPSYN self execution Jon Perryman
- Re: OPSYN self execut... Bodoh John Robert [Contractor]
