def __init__(self):
"""Creates a new Web Corpus Builder. """
self.urlfilter = lambda p: True
self.tagfilter = filtertools.tagfilter
self.probefilter = lambda t: True
self.datafilter = lambda d: True
self.visitor = lambda p: None
self.splitter = lambda p: [p]
self.writer = lambda d: print(d)
self.parser = HTMLParser(self)
self.crawler = CrawlerState()
