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Re: Incorrect example for `[[` command.

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  Re: Incorrect example for `[[` command. Ilkka Virta <itvirta@iki.fi> - 2019-09-20 16:30 +0300

#15382 — Re: Incorrect example for `[[` command.

On 20.9. 15:48, Greg Wooledge wrote:
> but after the regex-glob-thing, it says:
> 
>    That means values like ‘aab’ and ‘ aaaaaab’ will match
> 
> So there's a shift in intent between a? and a+ in what's supposed to be
> a regular expression.  Although of course the sentence is *literally*
> true because the regex would be unanchored, and therefore it's sufficient
> to match only the 'ab', and the rest of the input doesn't matter.
> But that's just confusing, and doesn't belong in this kind of document.

It goes on to say "as will a line containing a 'b' anywhere in its 
value", so the text does recognize the zero-width-matching parts don't 
affect what matches. (I suppose they would affect what goes to 
BASH_REMATCH[0], but the text doesn't mention that.)

I think it would be a better example with the anchored version also 
presented for comparison.

-- 
Ilkka Virta / itvirta@iki.fi

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