is the authoring format of LwDITA that uses HTML5 to structure information. It also uses custom data attributes to provide interoperability with DITA. page 
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The HDITA parser included in the org.lwdita plug-in provides preliminary support for these constructs. github
To apply LwDITA-specific processing to HTML topics, set the @format attribute to hdita:
<map> <topicref href="hdita-topic.html" format="hdita"/> </map>
**Attention**: The HDITA map format is not yet supported. To include HDITA content, use an XDITA map or a DITA 1.3 map. page