I wanted to play with this (and the other examples) in the debugger. Apparently the debugger has problems with goto jumping into blocks while single stepping. Depending on the variation, I get a Windows error (running inside a "Dos Shell"), or the debugger just exits.

Here is the version:

This is perl, v5.8.0 built for MSWin32-x86-multi-thread
(with 1 registered patch, see perl -V for more detail)

Copyright 1987-2002, Larry Wall

Binary build 806 provided by ActiveState Corp. http://www.ActiveState.
+com
Built 00:45:44 Mar 31 2003
[download]

Running normally (no debugger) doesn't have this problem. In the debugger, staying within a block or jumping outside of a block is OK too. [I only tried bare blocks, nothing fancy.]

Hrmm....