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You have a point and i do agree, but what happens when you scale your example up? That's what i am talking about here. Consider this:
if ( $foo > 7 ) { if ( $bar ) { bar_func( $foo ); } elsif ( $baz ) { baz_func( $foo ); } elsif ( $qux ) { baz_func( $foo ); } } elsif ( $foo <= 7 ) { if ( $bar ) { other_bar_func(); } elsif ( $baz ) { other_baz_func(); } elsif ( $qux ) { other_qux_func(); } }
Get's hairy quick. At that point, i would definetaly try a dispatch table with sub references. Now, to _really_ go out on a limb, how about a goto as a replacement for your first example, since you are only concerned with calling the subs if one condition is true:
goto SKIP unless $foo > 7; if ($bar) { bar_func($foo); } elsif ($baz) { baz_func($foo); } SKIP: # more code
Notice i didn't get rid of the outer if, i just seperated it from the inner if. Even though i use a goto, it looks more readable to me, simply because the indention level. Well, it looks more readable as long as i don't have to scan more than 10 lines to find where the goto is going! Besides, if this were inside a sub, i could replace the goto with return.

BUT ... I do agree that your first example is more readable than your second, and is much better form than my goto solution.

Did i just use a goto?!?

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
F--F--F--F--F--F--F--F--
(the triplet paradiddle)

In reply to (jeffa) 2Re: (Ovid - Why I love nested If-Else blocks) by jeffa
in thread Why I Hate Nested If-Else blocks by jeffa

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