in reply to Re^3: How to swap rows with columns?
in thread How to swap rows with columns?
I'm hoping this node helps other monks who may not have unraveled "_'_".
You didn't say what it was. ' is Perl4 for ::. It's still supported in Perl5, by it shouldn't be used in new code. This is documented in the second paragraph of perlmod.
$_::_ is just some arbitrary variable. Despite it's appearance to $_, it's not a special variable.
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