The function understands the following formats:
country:<country code>
- Point geoemtry guaranteed to be in the given country
+ Point geometry guaranteed to be in the given country
<P>
Point geometry
<P>,...,<P>
def mk_wkt_point(self, point):
""" Parse a point description.
- The point may either consist of 'x y' cooordinates or a number
+ The point may either consist of 'x y' coordinates or a number
that refers to a grid setup.
"""
geom = point.strip()