I am an EPUB 3.2 object model aspiring to be standards compliant.

• Documentation
• Types
• Test suite
  • High coverage
• Benchmarks
• Performance tuning

• Browser
  • Native XPath
• Node.js
• Deno
• GraphQL.js

• EPUB Open Container Format (OCF) 3.2
  • 3.5.2.1 Container File (container.xml)
• EPUB Packages 3.2
  • 3.4.1 The package Element
  • 3.4.2 Shared Attributes
  • 3.4.3 Metadata
  • 3.4.4 Manifest
  • 3.4.5 Spine
  • 3.4.6 Collections
  • 3.4.7 Legacy
  • 4.1.1 Unique Identifier
  • 4.1.2 Release Identifier
  • 4.2.4 The prefix Attribute
    • Raw value
    • Syntax
    • Resolving as model
    • Processing IRI
  • 4.2.4 The property Data Type
    • Syntax
    • Resolving as model
    • Processing IRI
  • 4.3 Package Rendering Metadata
    • Raw value
    • Syntax
    • Resolving as model
    • Processing IRI

See this example from the tests.

See this example from the tests.