From: Josh Cheek <josh.cheek@...>
Date: 2010-06-15T11:33:00+09:00
Subject: Re: Regular expressions in Ruby

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On Mon, Jun 14, 2010 at 10:24 AM, Abder-rahman Ali <
abder.rahman.ali@gmail.com> wrote:

> I'm new to Ruby, and just want to ask about how to read the following
> statement from the "Agile Web Development With Rails, 3rd edition" book:
>
> %r{\.(gif|jpg|png)$}i
>
>

It matches a dot, followed by either gif or jpg or png, at the end of the
string. It does not care about case.

For example, it would match

foo.gif
foo.GiF
fOoO.jpg
bar.PNG


It would not match

foogif
foo.gif.
foo.giff
foo.jp
foo.pjg
foo.jpx
foo.jpg.csv

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