Python pyasn1.type.univ.Real() Examples

The following are 5 code examples of pyasn1.type.univ.Real(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module pyasn1.type.univ , or try the search function .
Example #1
Source File: walk.py    From snmpsim with BSD 2-Clause "Simplified" License 5 votes vote down vote up
def _opaque_filter(value):
        if value.upper().startswith('FLOAT: '):
            return encoder.encode(univ.Real(float(value[7:])))

        else:
            return [int(y, 16) for y in value.split(' ')] 
Example #2
Source File: decoder.py    From nzb-subliminal with GNU General Public License v3.0 4 votes vote down vote up
def valueDecoder(self, fullSubstrate, substrate, asn1Spec, tagSet,
                     length, state, decodeFun, substrateFun):
        head, tail = substrate[:length], substrate[length:]
        if not head:
            return self._createComponent(asn1Spec, tagSet, 0.0), tail
        fo = oct2int(head[0]); head = head[1:]
        if fo & 0x80:  # binary enoding
            n = (fo & 0x03) + 1
            if n == 4:
                n = oct2int(head[0])
            eo, head = head[:n], head[n:]
            if not eo or not head:
                raise error.PyAsn1Error('Real exponent screwed')
            e = oct2int(eo[0]) & 0x80 and -1 or 0
            while eo:         # exponent
                e <<= 8
                e |= oct2int(eo[0])
                eo = eo[1:]
            p = 0
            while head:  # value
                p <<= 8
                p |= oct2int(head[0])
                head = head[1:]
            if fo & 0x40:    # sign bit
                p = -p
            value = (p, 2, e)
        elif fo & 0x40:  # infinite value
            value = fo & 0x01 and '-inf' or 'inf'
        elif fo & 0xc0 == 0:  # character encoding
            try:
                if fo & 0x3 == 0x1:  # NR1
                    value = (int(head), 10, 0)
                elif fo & 0x3 == 0x2:  # NR2
                    value = float(head)
                elif fo & 0x3 == 0x3:  # NR3
                    value = float(head)
                else:
                    raise error.SubstrateUnderrunError(
                        'Unknown NR (tag %s)' % fo
                        )
            except ValueError:
                raise error.SubstrateUnderrunError(
                    'Bad character Real syntax'
                    )
        else:
            raise error.SubstrateUnderrunError(
                'Unknown encoding (tag %s)' % fo
                )
        return self._createComponent(asn1Spec, tagSet, value), tail 
Example #3
Source File: decoder.py    From baidupan_shell with GNU General Public License v2.0 4 votes vote down vote up
def valueDecoder(self, fullSubstrate, substrate, asn1Spec, tagSet,
                     length, state, decodeFun, substrateFun):
        head, tail = substrate[:length], substrate[length:]
        if not head:
            return self._createComponent(asn1Spec, tagSet, 0.0), tail
        fo = oct2int(head[0]); head = head[1:]
        if fo & 0x80:  # binary enoding
            n = (fo & 0x03) + 1
            if n == 4:
                n = oct2int(head[0])
            eo, head = head[:n], head[n:]
            if not eo or not head:
                raise error.PyAsn1Error('Real exponent screwed')
            e = oct2int(eo[0]) & 0x80 and -1 or 0
            while eo:         # exponent
                e <<= 8
                e |= oct2int(eo[0])
                eo = eo[1:]
            p = 0
            while head:  # value
                p <<= 8
                p |= oct2int(head[0])
                head = head[1:]
            if fo & 0x40:    # sign bit
                p = -p
            value = (p, 2, e)
        elif fo & 0x40:  # infinite value
            value = fo & 0x01 and '-inf' or 'inf'
        elif fo & 0xc0 == 0:  # character encoding
            try:
                if fo & 0x3 == 0x1:  # NR1
                    value = (int(head), 10, 0)
                elif fo & 0x3 == 0x2:  # NR2
                    value = float(head)
                elif fo & 0x3 == 0x3:  # NR3
                    value = float(head)
                else:
                    raise error.SubstrateUnderrunError(
                        'Unknown NR (tag %s)' % fo
                        )
            except ValueError:
                raise error.SubstrateUnderrunError(
                    'Bad character Real syntax'
                    )
        else:
            raise error.SubstrateUnderrunError(
                'Unknown encoding (tag %s)' % fo
                )
        return self._createComponent(asn1Spec, tagSet, value), tail 
Example #4
Source File: decoder.py    From xbmc-addons-chinese with GNU General Public License v2.0 4 votes vote down vote up
def valueDecoder(self, fullSubstrate, substrate, asn1Spec, tagSet,
                     length, state, decodeFun, substrateFun):
        head, tail = substrate[:length], substrate[length:]
        if not head:
            return self._createComponent(asn1Spec, tagSet, 0.0), tail
        fo = oct2int(head[0]); head = head[1:]
        if fo & 0x80:  # binary enoding
            n = (fo & 0x03) + 1
            if n == 4:
                n = oct2int(head[0])
            eo, head = head[:n], head[n:]
            if not eo or not head:
                raise error.PyAsn1Error('Real exponent screwed')
            e = oct2int(eo[0]) & 0x80 and -1 or 0
            while eo:         # exponent
                e <<= 8
                e |= oct2int(eo[0])
                eo = eo[1:]
            p = 0
            while head:  # value
                p <<= 8
                p |= oct2int(head[0])
                head = head[1:]
            if fo & 0x40:    # sign bit
                p = -p
            value = (p, 2, e)
        elif fo & 0x40:  # infinite value
            value = fo & 0x01 and '-inf' or 'inf'
        elif fo & 0xc0 == 0:  # character encoding
            try:
                if fo & 0x3 == 0x1:  # NR1
                    value = (int(head), 10, 0)
                elif fo & 0x3 == 0x2:  # NR2
                    value = float(head)
                elif fo & 0x3 == 0x3:  # NR3
                    value = float(head)
                else:
                    raise error.SubstrateUnderrunError(
                        'Unknown NR (tag %s)' % fo
                        )
            except ValueError:
                raise error.SubstrateUnderrunError(
                    'Bad character Real syntax'
                    )
        else:
            raise error.SubstrateUnderrunError(
                'Unknown encoding (tag %s)' % fo
                )
        return self._createComponent(asn1Spec, tagSet, value), tail 
Example #5
Source File: decoder.py    From opsbro with MIT License 4 votes vote down vote up
def valueDecoder(self, fullSubstrate, substrate, asn1Spec, tagSet,
                     length, state, decodeFun, substrateFun):
        head, tail = substrate[:length], substrate[length:]
        if not head:
            return self._createComponent(asn1Spec, tagSet, 0.0), tail
        fo = oct2int(head[0]); head = head[1:]
        if fo & 0x80:  # binary enoding
            n = (fo & 0x03) + 1
            if n == 4:
                n = oct2int(head[0])
            eo, head = head[:n], head[n:]
            if not eo or not head:
                raise error.PyAsn1Error('Real exponent screwed')
            e = oct2int(eo[0]) & 0x80 and -1 or 0
            while eo:         # exponent
                e <<= 8
                e |= oct2int(eo[0])
                eo = eo[1:]
            p = 0
            while head:  # value
                p <<= 8
                p |= oct2int(head[0])
                head = head[1:]
            if fo & 0x40:    # sign bit
                p = -p
            value = (p, 2, e)
        elif fo & 0x40:  # infinite value
            value = fo & 0x01 and '-inf' or 'inf'
        elif fo & 0xc0 == 0:  # character encoding
            try:
                if fo & 0x3 == 0x1:  # NR1
                    value = (int(head), 10, 0)
                elif fo & 0x3 == 0x2:  # NR2
                    value = float(head)
                elif fo & 0x3 == 0x3:  # NR3
                    value = float(head)
                else:
                    raise error.SubstrateUnderrunError(
                        'Unknown NR (tag %s)' % fo
                        )
            except ValueError:
                raise error.SubstrateUnderrunError(
                    'Bad character Real syntax'
                    )
        else:
            raise error.SubstrateUnderrunError(
                'Unknown encoding (tag %s)' % fo
                )
        return self._createComponent(asn1Spec, tagSet, value), tail