On 25/11/2010 19:57, Phlip wrote:
Accepting input from a human is fraught with dangers and edge cases.
Here's a non-regex solution
Thanks all for playing! And as usual I forgot a critical detail:
I'm writing a matcher for a Morelia /viridis/ Scenario step, so the
matcher must be a single regexp.
http://c2.com/cgi/wiki?MoreliaViridis
I'm avoiding the current situation, where Morelia pulls out (.*), and
the step handler "manually" splits that up with:
flags = re.split(r', (?:and )?', flags)
That means I already had a brute-force version. A regexp version is
always better because, especially in Morelia, it validates input. (.*)
is less specific than (\w+).
So if the step says:
Alice has crypto keys apple, barley, and flax
Then the step handler could say (if this worked):
def step_user_has_crypto_keys_(self, user, *keys):
r'(\w+) has crypto keys (?:(\w+), )+and (\w+)'
# assert that user with those keys here
[snip]
You could do:
def step_user_has_crypto_keys_(self, user, keys):
r'(\w+) has crypto keys ((?:\w+, )+and \w+)'
to validate and capture, and then split the keys string.
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