One place to start is =
http://www.ruby-doc.org/core-2.1.0/Regexp.html#class-Regexp-label-Characte=
r+Classes

Hope this helps,

Mike

On Jan 28, 2014, at 7:38 AM, Selvag Ruby <lists / ruby-forum.com> wrote:

> I understood that words.
> but specifically I expected the explanation of [[:punct:]]. In=20
> ':punct:',
> 1. it's closed by double square brackets. why this?
> 2. there are two colons exists. Is there any reason to?
>=20
> --=20
> Posted via http://www.ruby-forum.com/.

--=20

Mike Stok <mike / stok.ca>
http://www.stok.ca/~mike/

The "`Stok' disclaimers" apply.