Scott David Daniels wrote:
> Felix Collins wrote:
>> I have an "outline number" system like
>> 1
>> 1.2
>> 1.2.3
>> I want to parse an outline number and return the parent.
>
> Seems to me regex is not the way to go:
> def parent(string):
> return string[: string.rindex('.')]
Absolutely, regex is the wrong solution for this problem. I'd suggest
using rsplit, though, since that will Do The Right Thing when a
top-level outline number is passed:
def parent(string):
return string.rsplit('.',1)[0]
Your solution will throw an exception, which may or may not be the right
behaviour.
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