Dennis Lee Bieber <wlfr...@ix.netcom.com> writes:
> On Sun, 15 Aug 2021 00:05:29 -0300, Jack Brandom <jbran...@example.com>
> declaimed the following:
>
>>Dennis Lee Bieber <wlfr...@ix.netcom.com> writes:
>>
>
>>> subscript: '.' '.' '.' | test | [test] ':' [test] [sliceop]
>>> sliceop: ':' [test]
>
>>
>>This is looking less readable, so, no, I prefer that previous, which was
>>much clearer about slices. I can't even quite make the slices out in
>>these rules. (But thanks for the opportunity to try.)
>
> The last part of "subscript" has the main "slice" notation (stripping
> the quotes)
>
> [test] : [test]
>
> and the "stride" component is [sliceop] being
>
> : [test]
Let's see. Let ``-->'' mean ``expands to''. Then
subscript
--> [test] ':' [test] [sliceop]
--> [test] ':' [test] ':' [test]
Does the brackets mean that its content count be omitted?
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