The quote characters in here to be translated by make-smart-quotes. Remove any you don't want to have handled.
The structure of an entry in this list is:
(pre match post how counts?)
pre is the part of the string that's before the quote to match, post is the string that is after the match. These are all irregex literals.
how is one of the following symbols: single, double, single-open, double-open, single-close or double-close.
counts? is a boolean describing whether the quote should influence the nesting of subsequent quotes or not. (ie, "isn't" => #f, since the ' is not a quote which matches a preceding quote or which is matched by a subsequent quote).