From: James Edward Gray II <james@...>
Date: 2004-09-23T22:34:14+09:00
Subject: Re: Regexp#match(str, *offset*)

On Sep 23, 2004, at 4:16 AM, trans. (T. Onoma) wrote:

> Curious, where's the offset? I can do this with String#index:
>
>   str.index(/re/,offset)
>   $~.begin
>   $~.end
>
> But not with Regexp itself?

Regexps already include that ability natively.  For example if you 
wanted to find the first space character after a 5 character offset, 
you could use:

/^.{5,}? /

Using Regexps to handle offsets can be significantly more flexible too. 
  For example, here's a pattern to match the last space that occurs not 
more than 81 characters into the string (perhaps useful for wrapping):

/^.{0,80} /

Hope that helps.

James Edward Gray II