comp.lang.ruby

Joel VanderWerf

2/20/2006 9:21:00 PM

Ron M wrote:
>
> IIRC, in a previous version, I was able to make more
> human-friendly YAML using the :SortKeys option as shown below.
>
> Since upgrading to 1.8.4 the keys seem not to be sorted anymore.
> Has the way of doing this changed? I hope this feature hasn't
> gone away. The main reason we're using YAML instead of XML is
> that it was more human-readable, and the SortKeys option added
> a major part of the human-readability.
>
>
>
> irb(main):016:0> puts(
> {1,'a',2,'b',3,'c',4,'d',5,'d'}.to_yaml(:Indent=>1,:SortKeys=>true))
> ---
> 5: d
> 1: a
> 2: b
> 3: c
> 4: d
> => nil

It grieves me also. I submitted a request to:

http://code.whytheluckystiff.net/syc...

In the interim, you can load the following patch whenever you want to
get sorted hash keys (for all hashes, unfortunately).

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