new_contents: # -*- coding: utf-8 -*-
  
  import re
  
  from base import BaseRegexExtractor
  
  class LinkExtractor(BaseRegexExtractor):
      regex = '<\s*[Aa]{1}\s+[^>]*?[Hh][Rr][Ee][Ff]\s*=\s*[\"\']?([/:_;=\w\&\?\%\+\-\.\(\)]+)[\"\']?\s*.*?>(.*?)</[Aa]{1}>'
  
      def extract(self, html):
          r=super(LinkExtractor, self).extract(html)
          return r
  
subject: add html.py class LinkExtractor(BaseRegexExtractor)