Parses an integer without checking size/signedness.

  Args:
    text: The text to parse.
    is_long: True if the value should be returned as a long integer.

  Returns:
    The integer value.

  Raises:
    ValueError: Thrown Iff the text is not a valid integer.

def _ParseAbstractInteger(text, is_long=False):
  """Parses an integer without checking size/signedness.

  Args:
    text: The text to parse.
    is_long: True if the value should be returned as a long integer.

  Returns:
    The integer value.

  Raises:
    ValueError: Thrown Iff the text is not a valid integer.
  """
  # Do the actual parsing. Exception handling is propagated to caller.
  try:
    # We force 32-bit values to int and 64-bit values to long to make
    # alternate implementations where the distinction is more significant
    # (e.g. the C++ implementation) simpler.
    if is_long:
      return long(text, 0)
    else:
      return int(text, 0)
  except ValueError:
    raise ValueError('Couldn\'t parse integer: %s' % text)