def _nmap_octet_target_values()

in scripts/ValidateParameters/netaddr/ip/nmap.py [0:0]

• 23 lines of code
• 11 McCabe index (conditional complexity)

def _nmap_octet_target_values(spec):
    #   Generates sequence of values for an individual octet as defined in the
    #   nmap Target Specification.
    values = set()

    for element in spec.split(','):
        if '-' in element:
            left, right = element.split('-', 1)
            if not left:
                left = 0
            if not right:
                right = 255
            low = int(left)
            high = int(right)
            if not ((0 <= low <= 255) and (0 <= high <= 255)):
                raise ValueError('octet value overflow for spec %s!' % spec)
            if low > high:
                raise ValueError('left side of hyphen must be <= right %r' % element)
            for octet in _iter_range(low, high + 1):
                values.add(octet)
        else:
            octet = int(element)
            if not (0 <= octet <= 255):
                raise ValueError('octet value overflow for spec %s!' % spec)
            values.add(octet)

    return sorted(values)