Method _variations

pattern/text/search.py:781–784

(self)

            return sorted(a)[0][-1]

    def _variations(self):
        v = variations(self.sequence, optional=lambda constraint: constraint.optional)
        v = sorted(v, key=len, reverse=True)
        return v
                
    def _match(self, sequence, sentence, start=0, i=0, w0=None, map=None, d=0):
        # Backtracking tree search.