parseEsriBinaryGeometry

def ExtractInt(string, start_position):
  """ 
    Loop through string till the next + or - sign and convert the stuff in between from 32-> integer
  """
  result = []
  stop = False
  
  position = start_position
  
  while not stop:
    char = string[position]
    if not position == start_position and (char in ('-','+')):
      stop = True
      break
    else:
      result.append(char)
      position+=1
      if position == len(string):
        stop = True

  if len(result) >0:
    iResult = stringToInt32(''.join(result))
    final_position = position
    return (iResult, final_position)
  else:
    ValueError(string)
    
    
def stringToInt32(string):
    """
        Convert binary string to integer
    """
    i =  int(string[1:],32)
    if string[0] == '-':
      return -i
    elif not string[0] in ('-','+'):
      ValueError('Invalid String: %s' % string)
    else:
      return i
      
      
def parseBinaryGeo(string):
  difX = 0
  difY = 0
  i = 0
  
  while i < len(string):
    nDiffX, i = ExtractInt(string, i)
    print nDiffX, i
    nDifYX, i = ExtractInt(string, i)
    nX = nDiffX + nLastDiffX
    nY = nDiffY + nLastDiff
    
    print nX, nY
    
x = parseBinaryGeo(string)
print x

      
      

http://resources.esri.com/help/9.3/arcgisengine/ArcObjects/esrinetworkanalyst/INACompactStreetDirection_CompressedGeometry.htm