You're going to want to treat this as CSV and use the module Text::CSV_XS. A regex is not as well suited to parsing data as a real parser is (i.e. what if you data has quotes, how do you want it to act?).

grep
Unix - where you can thrown the manual on the keyboard and get a command

In reply to Re: regex problems by grep
in thread Splitting a comma-delimited string where a substring could contain commas by Eisbar

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