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import urllib
import utopia.document
import re

_strippable = re.compile(r'\W+', re.UNICODE)

def strip(input):
    return _strippable.sub(' ', input)

class NCBIPhraseLookup(utopia.document.PhraseLookup):
    """7Search NCBI Databases"""
    def lookup(self, phrase):
        return "http://www.ncbi.nlm.nih.gov/gquery/?term=%s" % urllib.quote(strip(phrase).encode('utf-8'))

class QuertlePhraseLookup(utopia.document.PhraseLookup):
    """7Search Quertle"""
    def lookup(self, phrase):
        return "http://www.quertle.info/search?s=r&query=%s" % urllib.quote(strip(phrase).encode('utf-8'))

class WikipediaPhraseLookup(utopia.document.PhraseLookup):
    """8Search Wikipedia"""
    def lookup(self, phrase):
        return "http://en.wikipedia.org/wiki/search.php?search=%s" % urllib.quote(strip(phrase).encode('utf-8'))

class DictionaryLookup(utopia.document.PhraseLookup):
    """9Find in Dictionary"""
    def lookup(self, phrase):
        return "http://dictionary.reference.com/browse/%s" % urllib.quote(strip(phrase).encode('utf-8'))

class ThesaurusLookup(utopia.document.PhraseLookup):
    """9Find in Thesaurus"""
    def lookup(self, phrase):
        return "http://thesaurus.reference.com/browse/%s" % urllib.quote(strip(phrase).encode('utf-8'))