Ouch! Misusing split, which you attempt to fix by filtering out empty strings, which leads to warnings and the removal of empty fields. 

    Thing being separated
        vvvvvvv
/(?:\,|(\".*?\"))/
    ^^
  Separator

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How are those two things on equal footing?

In reply to Re^2: Splitting a line on just commas by ikegami
in thread Splitting a line on just commas by gibsonca

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