Table of Contents

• 1. Namespace Definition
• 2. Supported Namespaces
• 3. Namespace Groups
• 4. Usage in Generated Classes

Uniword uses native namespace support via lutaml-model v0.7+ XmlNamespace classes, providing 100% coverage of all 22 OOXML namespaces with 760 modeled elements.

1. Namespace Definition

Each namespace is defined as a Ruby class that inherits from Lutaml::Model::XmlNamespace:

module Namespaces
  class WordProcessingML < Lutaml::Model::XmlNamespace
    uri 'http://schemas.openxmlformats.org/wordprocessingml/2006/main'
    prefix_default 'w'
    element_form_default :qualified
  end
end

Namespaces are then referenced in model classes:

class Document < Lutaml::Model::Serializable
  xml do
    root 'document'
    namespace Namespaces::WordProcessingML

    map_element 'body', to: :body
  end

  attribute :body, Body
end

2. Supported Namespaces

Prefix	Elements	Version	Description
w:	100	v2.0	WordProcessingML — main document content (paragraphs, runs, tables)
m:	65	v2.0	Office Math Markup Language — equations and formulas
a:	92	v2.0	DrawingML Main — graphics, effects, colors, fills
pic:	10	v2.0	Picture — embedded images and image properties
r:	5	v2.0	Relationships — document part relationships and references
wp:	27	v2.0	DrawingML WordProcessing Drawing — image positioning
ct:	3	v2.0	Content Types — MIME type definitions for package parts
v:	15	v2.0	VML — legacy vector graphics for backward compatibility
o:	40	v2.0	Office — shared properties for legacy formats
v:o:	25	v2.0	VML Office extensions — additional legacy drawing properties
dp:	20	v2.0	Document Properties — core and app metadata
w14:	25	v2.0	Word 2010 Extended — enhanced controls, text effects
w15:	20	v2.0	Word 2013 Extended — collaboration and comments
w16:	15	v2.0	Word 2016 Extended — accessibility, modern formatting
xls:	83	v2.0	SpreadsheetML — Excel integration elements
c:	70	v2.0	Chart — charts and graph elements
p:	50	v2.0	PresentationML — PowerPoint integration elements
cxml:	29	v2.0	Custom XML — structured data integration
b:	24	v2.0	Bibliography — citation management
g:	19	v2.0	Glossary — building blocks and AutoText
st:	15	v2.0	Shared Types — common type definitions
dv:	10	v2.0	Document Variables — variable substitution

Total: 760/760 elements complete (100%)

3. Namespace Groups

The namespaces fall into several functional groups:

Document content

w:, r:, ct:, dp:

Graphics and drawing

a:, pic:, wp:, v:, o:, v:o:

Math

m:

Office interoperability

xls:, c:, p:

Word extensions

w14:, w15:, w16:

Data and metadata

cxml:, b:, g:, st:, dv:

4. Usage in Generated Classes

All 760 elements across these namespaces are generated as lutaml-model classes from YAML schemas. Each class uses the appropriate namespace definition for correct XML serialization and deserialization.