From: "David A. Black" <dblack@...>
Date: 2004-09-08T06:27:08+09:00
Subject: Re: yaml nuby question - duplicate keys

Hi --

On Wed, 8 Sep 2004, Daniel Berger wrote:

> Hi all,
> 
> Ruby 1.8.2
> 
> I'd like to have a config file that looks like this:
> 
> # test.yml
> foo:
>    user: usr1
>    password: pwd1
> foo:
>    user: usr2
>    password: pwd2
> bar:
>    user: usr3
>    password: pwd3
> 
> But, I try a simple YAML.load(File.open("test.yml") I lose one of the
> entries, because it loads it as a Hash which, of course, does not
> allow for duplicate keys.
> 
> Is there a way I can keep this kind of config file and still use YAML?
>  I looked at the various parse() options, but it started to go over my
> head at that point.

You could store them as an array of hashes, if that doesn't interfere
too much with what you're doing on the non-YAML side.

I'm not too well-versed in the parse/stream stuff either... but I
think you can maintain two distinct hashes pretty easily like this:

require 'yaml'

a = { "foo" => { "user" => "user1", "password" => "password1" } }
b = { "foo" => { "user" => "user2", "password" => "password2" } }

y = YAML.dump_stream(a,b)   #  a multi-object "to_yaml" effect
l = YAML.load_stream(y)

a = l[0]
b = l[1]

p a, b

__END__

The only thing here where I feel like I must be missing something is
the explicit indexing part (l[0], l[1]).  I rather expected the stream
object to be enumerable.  Over to someone who knows more....


David

-- 
David A. Black
dblack@wobblini.net