It's using the fact that it aliases $_ so that you don't have to explicitly bind to $input each time. It's iterating over a list, it just happens to only have one element.

Of course some wonks might say that in addition to the spelled-for-pronounced-foreach and vice versa you've got this spelled-foreach-pronounced-with . . . :)

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In reply to Re^3: deleting commas enclosed by quotation marks by Fletch
in thread deleting commas enclosed by quotation marks by matthewsnape

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