perldoc -f sort has a vast amount of information on writing sort subroutines.

But if all you want to do is use a function from some random module to do the comparison, how about ...

@output = sort { Some::Module::comparison($a, $b) }  @input

In reply to Re: just how special are $a and $b these days? by DrHyde
in thread just how special are $a and $b these days? by davidnicol

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