From: Joel VanderWerf <vjoel@...>
Date: 2007-08-02T15:19:22+09:00
Subject: Re: ordered hashes/ yaml?

d c wrote:
> i understand hashes dont keep their order in ruby, so wondering what the
> most elegant way to create some YAML that i want to maintain order is...

You can monkey-patch Hash to do it:

class Hash
   def to_yaml( opts = {} )
     YAML::quick_emit( object_id, opts ) do |out|
       out.map( taguri, to_yaml_style ) do |map|
         sorted_keys = keys
         sorted_keys = begin
           sorted_keys.sort
         rescue
           sorted_keys.sort_by {|k| k.to_s} rescue sorted_keys
         end

         sorted_keys.each do |k|
           map.add( k, fetch(k) )
         end
       end
     end
   end
end


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