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Comment on \d less efficient than [0-9]parent

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Use the s/, Luke

    s/^\s+?(.*)\s+?$/$1/g

That wouldn't work. First, it will only grab at only one whitespace character at the beginning and at the end. Second, if there was whitespace at the beginning or the end but not both, it won't match at all. "^\s* (.* ?)\s* $/$1/g" would work.

point being: get rid of the anchors in the alternation.

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