Blog: YAML/hash sort 1

ruby_yaml_keysort.rb

#!/usr/bin/env ruby

require 'yaml'

a = { 
  "a" => "b",
  "e" => "b",
  "c" => "b",
  "p" => "b",
  "z" => "b",
  "x" => "b",
  "d" => "b",
}

def sort_yaml1(obj)
  YAML::quick_emit(obj) do |out|
    out.map(obj.taguri, obj.to_yaml_style) do |map|
      obj.keys.sort.each do |k| 
        v = obj[k]
        map.add(k, v)
      end 
    end 
  end 
end

puts sort_yaml1(a)