From: Joel VanderWerf <vjoel@...>
Date: 2007-08-03T00:17:02+09:00
Subject: Re: ordered hashes/ yaml?

Trans wrote:
..
>> but to keep this as an array, it seems nasty to step thru and read
>> pairs/skip in twos thru the array:
...
> YAML has a secondary type called an omap. It is supported in the syck
> implementation:

That still loads as an array though:

require 'yaml'

h = YAML.load <<EOY
  section1: !omap
    - link1: home
    - link2: my page
    - link3: logout
EOY

p h

__END__

Output:

{"section1"=>[["link1", "home"], ["link2", "my page"], ["link3", "logout"]]}


Maybe the !!omap is useful, but the thing it loads as doesn't seem to 
have a #[] method (and it's not clear the data structure is any more 
efficient than an array):

require 'yaml'

h = YAML.load <<EOY
  section1: !!omap
    - link1: home
    - link2: my page
    - link3: logout
EOY

p h["section1"]["link1"] # ==> undef method

Anyone have any enlightenment...?

-- 
       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407