# RDAIReaderView

`RDAIReaderView` is the local indexing and retrieval foundation for ReadViewSDK AI reader features. Version `0.1` provides Natural Language sentence chunking, language detection, named-entity candidates, source-backed citations and local lexical retrieval. It does not upload book content.

## Install

```ruby
pod 'RDAIReaderView/NaturalLanguage'
pod 'RDPDFReaderView/AI'
pod 'RDEpubReaderView/AI'
```

## Use with PDF

```swift
let service = reader.makeAIReaderService()
try await service.prepareIndex(
    options: RDAIIndexOptions(scope: .wholeDocument)
)

let matches = await service.retrieve(
    query: "主角为什么离开",
    options: RDAIRetrievalOptions(scope: .wholeDocument)
)

if let match = matches.first {
    let citation = RDAICitation(
        passageIdentifier: match.passage.id,
        quote: match.passage.text,
        locator: match.passage.locator
    )
    try await reader.makeAIContentProvider().aiShowCitationHighlight(citation)
}
```

PDF citations retain native-text versus OCR provenance. EPUB citations use normalized `href` and derive CFI ranges when navigating.

Foundation Models generation, persistent SQLite storage and the AI UI are planned follow-up modules; the Core API is intentionally independent of those capabilities.