From: William James <w_a_x_man@...>
Date: 2007-05-04T12:20:07+09:00
Subject: Re: Beyond YAML? (scaling)

On May 3, 10:11 am, Bil Kleb <Bil.K...@NASA.gov> wrote:
> Bil Kleb wrote:
> > khai...@enigo.com wrote:
>
> >> I guess that depends on whether you need the files to be easily
> >> readable or not.  If you don't, Marshal will be faster than YAML.
>
> > At this point, I'm looking for an easy out that will
> > reduce size and increase speed, and I'm willing to
> > go binary if necessary.
>
> > Of the answers I've seen so far (thanks everyone!),
> > migrating to Marshal seems to be the Simplest Thing
> > That Could Possibly Work.
>
> Well, maybe not so simple...
>
>   `dump': can't dump hash with default proc (TypeError)
>
> which seems to be due to the trick I learned from zenspider
> and drbrain to quickly setup a hash of arrays:,
>
>   Hash.new{ |hash,key| hash[key]=[] }
>
> Later,
> --
> Bil Klebhttp://fun3d.larc.nasa.gov

Would making a copy of the hash use too much
memory or time?

h=Hash.new{ |hash,key| hash[key]=[] }

h['foo'] << 44
h['foo'] << 88

h_copy = {}
h.each{|k,v| h_copy[k] = v}
p h_copy