: This "double feature" is present in Perl 4.019 on a Sun4 running
: sunos 4.1.1.
: When doing a next within a subroutine which is
: called within a loop and the next itself is NOT within a loop, the next
: is NOT flagged as an error but gives back the control outside the
: subroutine. This first feature is NOT documented in the perl book and
: I feel that it is a bug since the fact whether the statement is
: syntacticaly valid depends on the USAGE of the subroutine rather than
: its definition! Without the outside loop, I get an error message:
: Bad label: <null> at - line 4.
: The double part of this feature is that the subroutine can AFFECT
: where the next statement returns OUTSIDE of it!! In the example below,
: the PRESENCE of the NEVER executed return statement, affects whether
: the statement "next" will give back control just after the call of
: the subroutine or outside the loop which called the subroutine!
Okay, I'll give you a third feature that goes with the other two. In a
Here's a fourth. You can exit an eval by saying "last _EVAL_".
How 'bout this:
These are all accidents of an implementation using longjmp() and a
If I don't document something, it's usually either for a good reason,
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