/** Display-only context. Paths are ordered sections intersecting the chunk, not alternatives. */
export interface SourceContext {
    headingPaths: string[][];
    /** One-based inclusive lines in the original MD/TXT file, never extracted PDF/DOCX text. */
    startLine?: number;
    endLine?: number;
    /** One-based physical PDF pages, not printed page labels. */
    startPage?: number;
    endPage?: number;
}
export interface HeadingAnchor {
    offset: number;
    level: number;
    text: string;
}
/** Offsets refer to the final text supplied to the chunker. */
export interface SourceMap {
    headings: HeadingAnchor[];
    lineStarts?: number[];
    pages?: {
        start: number;
        end: number;
        page: number;
    }[];
}
export declare function sourceContextForRange(map: SourceMap, start: number, end: number): SourceContext;
/** Legacy rows have no context. Invalid stored metadata is omitted rather than guessed. */
export declare function parseSourceContext(value: unknown): SourceContext | undefined;
//# sourceMappingURL=source-context.d.ts.map