From: George <george.ogata@...>
Date: 2007-11-27T14:07:39+09:00
Subject: Re: specify start postion of Regexp matching

On Nov 26, 2007 5:07 PM, 7stud -- <bbxx789_05ss@yahoo.com> wrote:
> Jordan Callicoat wrote:
> > You have to create a sub-string with
> > the 1.8 version, but according to Robert Klemme (above) it's just
> > creating a pointer into the original string if you're not changing the
> > substring or original string.
>
> I'm having a hard time confirming that:
>
> str = "hello"
> sub_str = str[1, 2]
>
> puts str.object_id
> -->76750
>
> puts sub_str.object_id
> -->76740
>
> puts sub_str.class
> -->String

A new ruby object is created, but the string buffer that it points to
is only copied on write.