You're mixing two concepts together. When you said 
split /[\w|\W]/

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you meant 

split /[\w\W]/

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or 

split /\w|\W/

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The above would be better written as 

split /./s

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That said, it doesn't work. If you want to separate every character, the characters aren't the separators, the nothings between each character are. You want: 

split //, $x

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The following would also do: 

$x =~ /./sg

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In reply to Re^2: split chars in string by ikegami
in thread split chars in string by Anonymous Monk

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