I did use a "$return" as described in the 2nd GOTCHA. Even when I specify a "print" instruction as the 1st instruction to my program I still receive a parsing error 
Enter --> print a

       ERROR (line 1): Invalid instruction: Was expecting assign instr
+uction,
                       or print instruction
Error returned by parsing

Enter -->

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In reply to Re^4: how to match entire buffer with Parse::RecDescent by expo1967
in thread how to match entire buffer with Parse::RecDescent by expo1967

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