Features : Honzo

Beyond the core format, Honzo provides several advanced features for modern ebook experiences.

Available features

Annotations

Portable highlights, bookmarks, and notes via org.nisoku.anno.

Search Index

Inverted term index via org.nisoku.sidx for full-text search.

Sync Tracks

Audio, video, and animation synchronization via org.nisoku.sync.

Streaming

Pull-based chapter decoding for minimal memory usage.

All features are stored as EXTRA entries or special chunk types within the Honzo file. This has three benefits.

Portability

Sync tracks, annotations, and search indices travel with the file.

Editability

Append only via tail mutability. No data section rewrite needed.

Extensibility

Custom namespaces are preserved on round-trip.

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