limit decorator

"""
Limits the returnvalue to the given minimum and maxmimum values.
"""

def limit(min,max):
    def wrapper(f):
        def nf(*args,**kwargs):
            r = f(*args,**kwargs)
            if r < min: return min
            if r > max: return max
            return r
        nf.__name__ = f.__name__
        return nf
    return wrapper