mixed: true in xml mapping is not working as expected

[suleman-uzair]

When I try to parse the following XML:

<math>
  <mrow>
     <mi>x</mi>
     <mo>+</mo>
     <mi>y</mi>
  </mrow>
</math>

Using the following code:

require 'lutaml/model'
Lutaml::Model::Config.configure do |config|
  require 'lutaml/model/xml_adapter/nokogiri_adapter'
  config.xml_adapter = Lutaml::Model::XmlAdapter::NokogiriAdapter
end

class Mi < Lutaml::Model::Serializable
  attribute :value, :string

  xml do
    root "mi"

    map_content to: :value
  end
end

class Mo < Lutaml::Model::Serializable
  attribute :value, :string

  xml do
    root "mo"

    map_content to: :value
  end
end

class Mrow < Lutaml::Model::Serializable
  attribute :mi, Mi
  attribute :mo, Mo

  xml do
    root "mrow", mixed: true

    map_element :mi, to: :mi
    map_element :mo, to: :mo
  end
end

class Mathml < Lutaml::Model::Serializable
  attribute :mrow, Mrow, collection: true

  xml do
    root "math", mixed: true

    map_element :mrow, to: :mrow
  end
end


Mathml.from_xml("<math><mrow><mi>x</mi><mo>+</mo><mi>y</mi></mrow></math>")
> #<Mathml:0x0000000104879308
@element_order=["mrow"],
@mrow=
 [#<Mrow:0x0000000104872670
   @element_order=["mi", "mo", "mi"],
   @mi=
    [#<Mi:0x000000010485d568 @element_order=["text"], @ordered=nil, @validate_on_set=false, @value="x">,
     #<Mi:0x00000001049589e0 @element_order=["text"], @ordered=nil, @validate_on_set=false, @value="y">],
   @mo=#<Mo:0x00000001047fa0d0 @element_order=["text"], @ordered=false, @validate_on_set=false, @value="+">,
   @ordered=true,
   @validate_on_set=false>],
@ordered=true,
@validate_on_set=false>

How can I get the output formula as mi(x), mo(+), mi(y) and not mi(x), mi(y), mo(+)? is there anything I can do using mixed option?

[ronaldtse]

@suleman-uzair is this addressed?

[suleman-uzair]

is this addressed?

@ronaldtse, No, it’s not addressed yet.