import { TextBlock } from '../../core/types';
interface ReadableOptions {
    includeFootnotes?: boolean;
    includeAnnotationRefs?: boolean;
}
export interface ReadableBlock {
    block: TextBlock;
    readable: ReadableBlockText;
}
export interface ReadableBlockText {
    text: string;
    mapOffset(offset: number, end?: boolean): number;
}
export declare function getReadableBlocks(blocks: readonly TextBlock[], options: ReadableOptions): ReadableBlock[];
export declare function splitText(text: string, maxChars: number): Array<{
    text: string;
    start: number;
    end: number;
}>;
export declare function normalizeText(text: string): string;
export declare function hasSpeakableText(text: string): boolean;
export declare function trimSilentGapEdges(text: string, start: number, end: number): {
    start: number;
    end: number;
};
export declare function trimSpeechPartBoundaryEdges(text: string, start: number, end: number): {
    start: number;
    end: number;
};
export {};
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