From: Rick DeNatale <rick.denatale@...>
Date: 2008-01-08T22:24:35+09:00
Subject: Re: proc to block

On Jan 7, 2008 11:35 PM, Gary Wright <gwtmp01@mac.com> wrote:
>
> On Jan 7, 2008, at 11:06 PM, L A wrote:
>
> > Hello all,
> >
> > Is there a way to turn a Proc into a block for the purposes of
> > methods that yield to blocks?  It's not a necessity as I can always
> > wrap the Proc in a block, I'm just curious.
>
> Just prefix the object you want to be passed as a block with '&' in
> the argument list.
>
> p = proc { |x| x > 10 }
>
> [1,5,10,20, 30].select &p

Except that this isn't part of the standard ruby library for 1.8. It
relies on having a Symbol#to_proc method

It is a common extension, for example Rails includes it.

It IS part of Ruby 1.9 though.

I'd suggest googling for "ruby to_proc"


-- 
Rick DeNatale

My blog on Ruby
http://talklikeaduck.denhaven2.com/