Whittle it on down
Jussi Piitulainen
jussi.piitulainen at helsinki.fi
Thu May 5 14:27:05 EDT 2016
Steven D'Aprano writes:
> On Fri, 6 May 2016 03:49 am, Jussi Piitulainen wrote:
>
>> Steven D'Aprano writes:
>>
>>> I get something like this:
>>>
>>> r"(^[A-Z]+$)|(^([A-Z]+[ ]*\&[ ]*[A-Z]+)+$)"
>>>
>>>
>>> but it fails on strings like "AA & A & A". What am I doing wrong?
>>
>> It cannot split the string as (LETTERS & LETTERS)(LETTERS & LETTERS)
>> when the middle part is just one LETTER. That's something of a
>> misanalysis anyway. I notice that the correct pattern has already been
>> posted at least thrice and you have acknowledged one of them.
>
> Thrice? I've seen Peter's response (he made the trivial and obvious
> simplification of just using A instead of [A-Z], but that was easy to
> understand), and Random832 almost got it, missing only that you need to
> match the entire string, not just a substring. If there was a third
> response, I missed it.
I think I saw another. I may be mistaken.
Random832's pattern is fine. You need to use re.fullmatch with it.
. .
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