From: Daniel Finnie <danfinnie@...>
Date: 2007-02-21T08:00:52+09:00
Subject: Re: [Facets] Range#overlap?

I think your implementation is cleaner however the endpoints of a Range 
do not have to implement #succ.

class Range
   def span? other
     include? other.first and
       (other.exclude_end? ? other.last < last : other.last <= last )
   end
end

I think within? is a better name.

Dan

Daniel Schierbeck wrote:
> On Tue, 2007-02-20 at 22:47 +0900, Daniel Finnie wrote:
>> That seems to be what facet/range/within does now.
> 
> It's implementation is rather odd, though.
> 
> Here's what I'd like to have instead:
> 
>   class Range
>     def span? other
>       include? other.first and
>       other.last <= (other.exclude_end? ? last.succ : last)
>     end
>   end
> 
> 
> Cheers,
> Daniel
> 
> 
>