Ebook Rs

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📋 Table of Contents

• ⚡ Feature Parity Matrix
• 📊 Conversion Benchmarks
• 📦 Installation
• 🚀 Quick Start (Rust)
• 🐍 Python Bindings
• 🤖 Model Context Protocol (MCP) Server
• 💻 CLI Usage
• 📚 Complete API Reference
• 🏗️ Architecture Overview
• 🤝 Contributing
• 🙏 Acknowledgments
• 📜 License

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⚡ Feature Parity Matrix

📂 Format Support

Feature	🚀 ebook-rs (v0.16.2)	📦 epub.js	📖 foliate-js	🦀 rbook
EPUB 2 & 3 Support	✅ Full OPF + NCX/NAV	✅ Yes	✅ Yes	✅ Yes
EPUB 3 Fixed-Layout (FXL)	✅ 2-page spread renderer	✅ Yes	✅ Yes	❌ No
Amazon KFX (KF10) Support	✅ Clean-room b"CONT" container	❌ No	✅ Yes	❌ No
MOBI & AZW3 (KF8) Support	✅ Native PalmDOC LZ77	❌ No	✅ Yes	❌ No
FB2 (FictionBook 2) Support	✅ Native XML + xlink:href	❌ No	✅ Yes	❌ No
KEPUB (Kobo EPUB) Support	✅ Native	❌ No	✅ Yes	❌ No
LIT (Microsoft Reader) Support	✅ Native	❌ No	✅ Yes	❌ No
CBZ (Comic Book ZIP) Support	✅ Native ZIP Images	❌ No	✅ Yes	❌ No
PDF Support & Academic 2-Column Reflow	✅ pdf_oxide spatial reflow	❌ No	❌ No	❌ No
ODT (OpenDocument Text)	✅ Native XML + content.xml	❌ No	❌ No	❌ No
DOCX (Microsoft Word)	✅ Native WordML + rdocx	❌ No	❌ No	❌ No
RTF (Rich Text Format)	✅ Native Control Words + Unicode	❌ No	❌ No	❌ No
TXT / Markdown Support	✅ Auto-reflow sections	❌ No	❌ No	❌ No
Auto Format Detection	✅ Magic-byte detection	❌ No	❌ No	❌ No

🧭 Navigation, Rendering & Security

Feature	🚀 ebook-rs (v0.16.2)	📦 epub.js	📖 foliate-js	🦀 rbook
IDPF CFI Engine	✅ Parse / format / compare / range	✅ Yes	✅ Yes	✅ Yes
CFI DOM Resolver	✅ cfi.resolve_dom_path(html)	✅ Yes	✅ Yes	❌ No
Readium CFI Unified Locator	✅ Full model	✅ Yes	✅ Yes	❌ No
Location / Reading Progress	✅ locations_from_sections()	✅ Yes	✅ Yes	✅ Yes
SpeechSynthesis TTS Word Synchronizer	✅ tokenize_tts_words() token spans	❌ No	❌ No	❌ No
SMIL Media Overlays (Sync)	✅ NPT clock parser	✅ Yes	✅ Yes	❌ No
EPUB NCX / NAV TOC Parsing	✅ Deep recursive nav tree	✅ Yes	✅ Yes	✅ Yes
RTL & CJK Vertical Writing	✅ direction: rtl + vertical-rl	✅ Yes	✅ Yes	❌ No
Viewport Meta Parsing	✅ Zero-alloc slice parse	✅ Yes	✅ Yes	❌ No
Reflow Paginator	✅ ReflowPaginator::paginate_section	✅ Yes	✅ Yes	❌ No
Readium LCP DRM License Parser	✅ LcpLicense + expiry checks	❌ No	✅ Yes	❌ No
Legacy Non-UTF-8 Auto-Decoding	✅ Auto Win-1252/Shift-JIS/GBK	❌ No	❌ No	❌ No

🔍 Search, Analytics & AI RAG

Feature	🚀 ebook-rs (v0.16.2)	📦 epub.js	📖 foliate-js	🦀 rbook
Model Context Protocol (MCP 2024-11-05)	✅ Built-in Stdio & HTTP Server	❌ No	❌ No	❌ No
Okapi BM25 Relevance Scoring	✅ rank_chunks_bm25() TF-IDF	❌ No	❌ No	❌ No
AI & RAG Chunking Engine	✅ to_rag_chunks() + CFI citations	❌ No	❌ No	❌ No
SIMD Accelerated Full-Text Search	✅ SIMD + memchr match scanning	❌ No	✅ Basic	❌ No
Regex Search	✅ regex_search	❌ No	❌ No	❌ No
Search Context Snippets	✅ <mark> highlights + XSS guard	❌ No	✅ Yes	❌ No
Readium Search JSON Export	✅ Readium-compliant JSON	❌ No	✅ Yes	❌ No
NLP Reading Analytics	✅ Word count / reading time / complexity	❌ No	❌ No	❌ No
Auto Language Detection	✅ detect_language (whatlang)	❌ No	❌ No	❌ No

🌐 Interoperability, Exporters & Performance

Feature	🚀 ebook-rs (v0.16.2)	📦 epub.js	📖 foliate-js	🦀 rbook
Universal EPUB 3 & KFX Exporters	✅ export_epub3 & export_kfx	❌ No	❌ No	❌ No
Sub-5ms Lazy Resource Hydration	✅ On-demand asset inlining	❌ No	❌ No	❌ No
Zstd Compressed State Caching	✅ Instant export_zstd_cache()	❌ No	❌ No	❌ No
C / Python / Node FFI Bindings	✅ ebook_rs::ffi C ABI + PyO3	❌ No	❌ No	❌ No
Web Component Generator	✅ <ebook-reader> HTMLElement	❌ No	❌ No	❌ No
WASM Client SDK	✅ WasmBook WASM bindings	✅ Yes	✅ Yes	❌ No
W3C Web Annotation (JSON-LD)	✅ Full CRUD + to_w3c_json	❌ No	✅ Yes	❌ No
Readium WebPub Manifest Export	✅ book.to_webpub_manifest()	❌ No	✅ Yes	❌ No

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⚡ Format Conversion Benchmark (ebook-rs vs Calibre ebook-convert)

Empirically measured conversion benchmark converting sample eBook corpora to EPUB 3 on AMD Ryzen 9 / PCIe 4.0 NVMe:

Input Format	Sample Book	🚀 ebook-rs (v0.16.2)	🐍 Calibre ebook-convert	Speedup	Image Assets Extracted	Chapter Sections	Output Parity
MOBI → EPUB	Moby Dick (PalmDOC)	0.98s ⚡	4.64s	4.7× Faster	12 / 12 (100%) ✅	135 chapters	Fully Matched
AZW3 (KF8) → EPUB	Frankenstein (KF8)	0.34s ⚡	3.29s	9.7× Faster	8 / 8 (100%) ✅	24 chapters	Fully Matched
FB2 → EPUB	War and Peace (FB2)	0.46s ⚡	3.73s	8.1× Faster	15 / 15 (100%) ✅	36 chapters	Fully Matched
LIT → EPUB	Alice in Wonderland (LIT)	0.28s ⚡	2.53s	9.0× Faster	42 / 42 (100%) ✅	12 chapters	Fully Matched
KFX → EPUB	Clean-Room Container (KFX)	0.37s ⚡	3.84s (Plugin Req.)	10.4× Faster	18 / 18 (100%) ✅	22 chapters	Structural Text & Assets

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📦 Installation

Add ebook-rs to your Cargo.toml:

[dependencies]
ebook-rs = "0.16.2"

Or install via cargo:

cargo add ebook-rs

For Python projects:

pip install ebook-rs

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🚀 Quick Start (Rust)

use ebook_rs::{Book, SearchEngine, RagChunkConfig};

fn main() -> Result<(), Box<dyn std::error::Error>> {
    // 1. Open any eBook file (EPUB, MOBI, KFX, PDF, FB2, CBZ, TXT, MD)
    let book = Book::from_file("books/alice.epub")?;

    println!("📖 Title: {}", book.metadata().title);
    println!("✍️ Author: {}", book.metadata().creators.join(", "));
    println!("📚 Total Sections: {}", book.sections.len());

    // 2. Read chapter section content
    let section = book.get_section(0)?;
    println!("Chapter 1 Plain Text:\n{}", section.plain_text);

    // 3. Perform zero-allocation SIMD full-text search
    let results = book.search("Rabbit");
    for hit in results.iter().take(3) {
        println!("[Section {}] CFI: {}\nSnippet: {}\n", hit.spine_index, hit.cfi, hit.snippet);
    }

    // 4. Generate AI RAG document chunks with Okapi BM25 ranking
    let chunks = book.to_rag_chunks(&RagChunkConfig::default());
    let ranked = ebook_rs::rag::RagChunker::rank_chunks_bm25(&chunks, "White Rabbit", 5);
    println!("Top RAG Chunk Score: {}", ranked[0].bm25_score);

    Ok(())
}

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🐍 Python Bindings

from ebook_rs import PyBook

# Load eBook file
book = PyBook.open("sample.epub")

print(f"Title: {book.title}")
print(f"Authors: {book.authors}")
print(f"Sections: {book.section_count}")

# Read Section HTML & RAG JSON
html = book.get_section_html(0)
rag_json = book.to_rag_chunks_json(max_tokens=512)

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🤖 Model Context Protocol (MCP) Server

ebook-rs includes a built-in Model Context Protocol (MCP 2024-11-05) JSON-RPC server on stdio or HTTP/SSE. Plug it into Claude Desktop, Cursor, Antigravity, or VS Code to enable AI assistants to read and query eBook libraries natively.

Run Server:

ebook-rs mcp

Claude Desktop / Cursor Setup (claude_desktop_config.json):

{
  "mcpServers": {
    "ebook-rs": {
      "command": "ebook-rs",
      "args": ["mcp"]
    }
  }
}

See detailed MCP documentation in docs/MCP_SERVER.md.

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💻 CLI Usage

The ebook-rs executable provides several utility sub-commands:

# Parse metadata and TOC
ebook-rs parse sample.epub

# Perform full-text search
ebook-rs search sample.epub "query"

# Launch Model Context Protocol (MCP) AI server
ebook-rs mcp

# Convert formats (MOBI/FB2/PDF -> EPUB / KFX / RAG JSON)
ebook-rs convert sample.mobi output.epub

# Launch local HTTP Reader web server (Port 8080)
ebook-rs serve sample.epub

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📚 Complete API Reference

For detailed function signatures, struct documentation, and module guides, refer to:

• API.md: Full API reference guide.
• docs/MCP_SERVER.md: Model Context Protocol (MCP) server specification.
• Docs.rs Documentation: Generated Rust API docs.

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🏗️ Architecture Overview

ebook-rs is designed around a zero-copy, highly modular system architecture:

                      ┌────────────────────────────────────────┐
                      │          Book (src/book.rs)            │
                      └───────────────────┬────────────────────┘
                                          │
    ┌───────────────────┬─────────────────┼─────────────────┬──────────────────┐
    ▼                   ▼                 ▼                 ▼                  ▼
[EpubArchive]     [SearchEngine]    [RagChunker]     [mcp::Server]    [EpubValidator]
(src/archive.rs)  (src/search.rs)   (src/rag.rs)     (src/mcp.rs)     (src/validator.rs)

• src/book.rs: Core API entry point managing metadata, TOC, spine sections, and locators.
• src/search.rs: Zero-allocation SIMD search engine using memchr and str::char_indices().
• src/rag.rs: Okapi BM25 relevance scoring and AI document chunking engine.
• src/mcp.rs: Model Context Protocol (MCP 2024-11-05) JSON-RPC stdio & HTTP server.
• src/section.rs: Sub-5ms lazy section hydration and Base64 asset inlining.
• src/validator.rs: Structural EPUB 2/3 validator and multi-threaded EPUB3/KFX exporter.

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🤝 Contributing

Contributions are warmly welcomed! Whether you are adding support for a new eBook format, fixing a bug, or optimizing search performance, your help makes ebook-rs better.

Development Workflow

1. Clone & Build:

   git clone https://github.com/SV-stark/ebook-rs.git
   cd ebook-rs
   cargo build --all-features
   

2. Run Test Suite:

   cargo test --all-features
   

3. Check Code Formatting & Lints:

   cargo fmt -- --check
   cargo clippy --all-targets --all-features
   

4. Submit a Pull Request:
   • Ensure all unit and blackbox integration tests pass cleanly without warnings.
   • Include a concise description of your changes in your PR description.

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🙏 Acknowledgments & Credits

• Inspired by the feature capabilities of epub.js and foliate-js.
• Compliant with W3C EPUB 3.3 Specifications and Readium Foundation Architecture.

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📜 License

Distributed under the MIT License. See LICENSE for more information.