> No serious application whatsoever for this nonsense...

sigh, YOU again...

you may use it for

  1. easily leaving deeply nested recursions, without the need to return step by step 
     perl -e '
my $x; sub rec { goto STOP if ++$x>10; print $x; rec()};rec();STOP:' 
12345678910

    [download]

  2. easily defining specific labels and jump-commands in DSLs (Domain Specific Languages) and encapsulating all the logic within the subs.

    For instance if you want to emulate and/or compile an assembler language you can easily implement it as valid perl-code then easily using Perl as macro language: 

    use Assembler::6502;     # fictitious module 
                         # implementing Mnemonics as subs
 
MARK:      LDX 10;
           ADD 3;
 
           macro1();     # Perl sub to include/call mnemonics 
 
           JSR SUB2;
           JMP MARK;
 
SUB2:      ...
           ...
           RET

    [download]

serious enough?

Cheers Rolf

UPDATE: added examples

In reply to Re^5: cross scope gotos? by LanX
in thread cross scope gotos? by LanX

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