From: Mark Thomas <mark@...>
Date: 2008-10-02T23:49:02+09:00
Subject: Re: What does this regexp do?

On Oct 2, 10:11 am, Daniel DeLorme <dan...@dan42.com> wrote:
> I can't figure out what this does:
>  >> "1\n2\n3\n"[ /.\Z?/ ]
> => ""
>
> I would expect it to output "1", just as:
>  >> "1\n2\n3\n"[ /.(\Z)?/ ]
> => "1"
>
> Is this a bug?

Neither one of those make any sense. An optional end-of-string means
nothing. That second one is the same as [/./]

-- Mark.