/**
 * Utility functions for parsing bioRxiv URLs and DOIs
 */
/**
 * bioRxiv DOI prefixes - both legacy (10.1101) and new (10.64898, Dec 2025+)
 */
export declare const BIORXIV_DOI_PREFIXES: readonly ["10.1101", "10.64898"];
export declare const BIORXIV_DOI_PREFIX_PATTERN = "(10\\.1101|10\\.64898)";
export interface ParsedBiorxivURL {
    doi: string;
    baseDOI: string;
    version: string | null;
    fullURL: string;
    isValid: boolean;
}
export interface DOIParts {
    doi: string;
    prefix: string;
    suffix: string;
    date: string | null;
    identifier: string;
    version: string | null;
}
/**
 * Extract DOI from a bioRxiv URL
 */
export declare function extractDOIFromURL(url: string): string | null;
/**
 * Parse a bioRxiv DOI into its components
 * Supports both legacy numeric format (2019 and earlier) and current date-based format (2019+)
 */
export declare function parseDOI(doi: string): DOIParts | null;
/**
 * Extract base DOI (without version)
 * Works with both legacy numeric and current date-based formats
 */
export declare function extractBaseDOI(doi: string): string;
/**
 * Extract version from DOI
 * Works with both legacy numeric and current date-based formats
 */
export declare function extractVersion(doi: string): string | null;
/**
 * Check if a DOI is a valid bioRxiv DOI
 * Supports both legacy numeric and current date-based formats
 */
export declare function isValidBiorxivDOI(doi: string): boolean;
/**
 * Check if a URL is a valid bioRxiv URL
 */
export declare function isValidBiorxivURL(url: string): boolean;
/**
 * Parse a bioRxiv URL and extract all relevant information
 */
export declare function parseBiorxivURL(url: string): ParsedBiorxivURL | null;
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