On 2014-04-21 19:35, Steven D'Aprano wrote:
Does docopt solve the Original Poster's question? If not, that advice
is
not terribly helpful.
I don't pretend to fully understand the Original Poster's requirement
but I believe mutual exclusivity is supported. Here's a short excerpt.
"""
Example uses brackets "[ ]", parens "( )", pipes "|" and ellipsis "..."
to describe optional, required, mutually exclusive, and repeating
elements.
"""
By the way, I think you mean Single Point Of Truth, not Light.
http://www.faqs.org/docs/artu/ch04s02.html
SPOT, also known as DRY (Don't Repeat Yourself), is an excellent
principle to follow, but in my experience it is often too difficult to
follow religiously.
Thanks for the correction.
I too have found it difficult but have always considered it a failure on
my part when I'm forced to put it aside.
The point I was making is that docopt makes it much easier.
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