INTERPRET string

This command evaluates the given string and interprets it as if it were
part of a real rexx program. The string may contain any commands that
the program line containing the INTERPRET command might have executed
except that any DO or SELECT control blocks within the string must be
complete.  That is, the string may not start any new DO or SELECT
control blocks to be continued by the main program, and nor can it
contain an END, LEAVE, WHEN, etc. corresponding to a control block of
the main program.  An interpreted command can, however, cause a return
from a function.

NOTE: Interpreted strings must not contain labels.

Example: This program evaluates an expression given on the command line:

#!/mclab/imc/sun4/rexx  
parse arg x
interpret "y="||x
say x"="y