'Parse the given text as a positive integer.
Args:
text: a string that should contain the decimal representation of a
positive integer.
Returns:
An int that is the parsed value.
Raises:
ValueError: if text cannot be parsed as a positive integer.'

@staticmethod
def _PositiveInt(text):

    value = int(text)
    if (value > 0):
        return value
    raise ValueError(('Not    a    positive    integer:    %s' % text))
