From: google@... (Tom Payne)
Date: 2003-05-14T02:34:57+09:00
Subject: Re: Ruby<->Perl and syck-0.25 problem

Brian Candler <B.Candler@pobox.com> wrote in message news:<20030513145842.A72368@linnet.org>...
> However I've tried installing syck-0.25 and it seems to have some bits
> missing:
> 
> irb(main):002:0> require 'yaml'
> NameError: undefined method `add_ruby_type' for YAML:Module
>         from /usr/local/lib/ruby/site_ruby/1.6/yaml/rubytypes.rb:26
>         from /usr/local/lib/ruby/site_ruby/1.6/yaml.rb:19:in `require'
>         from /usr/local/lib/ruby/site_ruby/1.6/yaml.rb:19
>         from (irb):2:in `require'
>         from (irb):2
> 
> Grepping the source I can see where add_ruby_type and add_builtin_type are
> used, but not where they are defined.
> 
> Am I missing some magic source file?

You need to:
  require "syck"
not, "yaml".

Then change your code:
  object = YAML.load(whatever)
becomes
  parser = YAML::Syck::Parser.new({})
  object = parser.load(whatever)

HTH,

Tom