How do I convert a Ruby hash to XML?

Question

Here is the specific XML I ultimately need:

  joe@example.com
           


        

Answer 1

Gem gyoku very nice.

Gyoku.xml(:lower_camel_case => "key")    
# => "key"

Gyoku.xml({ :camel_case => "key" }, { :key_converter => :camelcase })
# => "key"

Gyoku.xml({ acronym_abc: "value" }, key_converter: lambda { |key| key.camelize(:lower) })
# => "value"

and more useful options.