The code

require 'yaml'
puts YAML.load("
is_something:
  values: ['yes', 'no']
").to_yaml

produces

--- 
is_something: 
  values: 
  - "yes"
  - "no"

While this is a correct yaml, it just looks ugly when you have a hash of arrays. Is there a way for me to get to_yaml to produce the inline array version of the yaml?

An options hash can be passed to to_yaml but how do you use it?

Edit 0: Thanks Pozsár Balázs. But, as of ruby 1.8.7 (2009-04-08 patchlevel 160), the options hash does not work as advertised. :(

irb
irb(main):001:0> require 'yaml'
=> true
irb(main):002:0> puts [[ 'Crispin', 'Glover' ]].to_yaml( :Indent => 4, :UseHeader => true, :UseVersion => true )
--- 
- - Crispin
  - Glover
=> nil
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