Evaluating perl code (e.g. via "eval" or "do 'file'") causes
the code to be compiled into an internal format and then,
provided there was no error in the compilation, executed.
-Code evaulated in a compartment compiles subject to the
-compartment's operator mask. Attempting to evaulate code in a
+Code evaluated in a compartment compiles subject to the
+compartment's operator mask. Attempting to evaluate code in a
compartment which contains a masked operator will cause the
compilation to fail with an error. The code will not be executed.