(self, expr='["](~(?P<slop>[1-9][0-9]*))?')
:param expr: a regular expression for the marker at the start and end
            of a phrase. The default is the double-quotes character.
:param expr: a regular expression for the marker at the start and end
            of a phrase. The default is the double-quotes character.
: param expr : a regular expression for the marker at the start and end of a phrase . The default is the double - quotes character .
def __init__(self, expr='["](~(?P<slop>[1-9][0-9]*))?'):
        """
        :param expr: a regular expression for the marker at the start and end
            of a phrase. The default is the double-quotes character.
        """

        self.expr = expr
def __init__ ( self , expr = '["](~(?P<slop>[1-9][0-9]*))?' ) : self . expr = expr