lisong wrote:
> Hi All,
>
> I have problem to split a string like this:
>
> 'abc.defg.hij.klmnop'
>
> and I want to get all substrings with only one '.' in mid. so the
> output I expect is :
>
> 'abc.defg', 'defg.hij', 'hij.klmnop'
>
> a simple regular expression '\w+.\w' will only return:
> 'abc.defg', 'hij.klmnop'
>
> is there a way to get 'defg.hij' using regular expression?
Nope. Regular expressions can't get back in their input-stream, at least not
for such stuff.
The problem at hand is easily solved using
s = 'abc.defg.hij.klmnop'
pairs = [".".join(v) for v in zip(s.split(".")[:-1], s.split(".")[1:])]
Diez
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