tagger.py 文件源码

def __init__(self, tail, head=None):
        '''
        @param tail: the L{Tag} object to add to the first part (head)
        @param head: the (eventually absent) L{MultiTag} to be extended

        @returns: a new L{MultiTag} object
        '''

        if not head:
            Tag.__init__(self, tail.string, tail.stem, tail.rating,
                         tail.proper, tail.terminal)
            self.size = 1
            self.subratings = [self.rating]
        else:
            self.string = ' '.join([head.string, tail.string])
            self.stem = ' '.join([head.stem, tail.stem])
            self.size = head.size + 1

            self.proper = (head.proper and tail.proper)
            self.terminal = tail.terminal

            self.subratings = head.subratings + [tail.rating]
            self.rating = self.combined_rating()