Пример #1
0
    def write_8bitfloat(self, f, mantissabits=5, zeroexp=2):
        """Writes a byte-sized representation of floating point value f to the
        wrapped file.
        
        :param mantissabits: the number of bits to use for the mantissa
            (with the rest used for the exponent).
        :param zeroexp: the zero point for the exponent.
        """

        self.write_byte(float_to_byte(f, mantissabits, zeroexp))
Пример #2
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    def write_8bitfloat(self, f, mantissabits=5, zeroexp=2):
        """Writes a byte-sized representation of floating point value f to the
        wrapped file.
        
        :param mantissabits: the number of bits to use for the mantissa
            (with the rest used for the exponent).
        :param zeroexp: the zero point for the exponent.
        """

        self.write_byte(float_to_byte(f, mantissabits, zeroexp))
Пример #3
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    def encode(self, posns_boosts):
        # posns_boosts = [(pos, boost), ...]
        codes = []
        base = 0
        summedboost = 0
        for pos, boost in posns_boosts:
            summedboost += boost
            codes.extend((varint(pos - base), float_to_byte(boost)))
            base = pos

        return pack("!If", len(posns_boosts), summedboost) + "".join(codes)
Пример #4
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 def encode(self, posns_boosts):
     # posns_boosts = [(pos, boost), ...]
     codes = []
     base = 0
     summedboost = 0
     for pos, boost in posns_boosts:
         summedboost += boost
         codes.extend((varint(pos - base), float_to_byte(boost)))
         base = pos
     
     return pack("!If", len(posns_boosts), summedboost) + "".join(codes)
Пример #5
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    def encode(self, posns_chars_boosts):
        # posns_chars_boosts = [(pos, startchar, endchar, boost), ...]
        codes = []

        posbase = 0
        charbase = 0
        summedboost = 0
        for pos, startchar, endchar, boost in posns_chars_boosts:
            summedboost += boost
            codes.append(varint(pos - posbase))
            posbase = pos
            codes.extend((varint(startchar - charbase),
                          varint(endchar - startchar), float_to_byte(boost)))
            charbase = endchar

        b = pack("!If", len(posns_chars_boosts), summedboost)
        return b + "".join(codes)
Пример #6
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 def encode(self, posns_chars_boosts):
     # posns_chars_boosts = [(pos, startchar, endchar, boost), ...]
     codes = []
     
     posbase = 0
     charbase = 0
     summedboost = 0
     for pos, startchar, endchar, boost in posns_chars_boosts:
         summedboost += boost
         codes.append(varint(pos - posbase))
         posbase = pos
         codes.extend((varint(startchar - charbase),
                       varint(endchar - startchar),
                       float_to_byte(boost)))
         charbase = endchar
     
     b = pack("!If", len(posns_chars_boosts), summedboost)
     return b + "".join(codes)
Пример #7
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 def encode(self, freq_docboost):
     freq, docboost = freq_docboost
     return pack("!I", freq) + float_to_byte(docboost)
Пример #8
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 def encode(self, freq_docboost):
     freq, docboost = freq_docboost
     return pack("!I", freq) + float_to_byte(docboost)