/**
 * Detect lockfile type from filename
 */
export declare function detectLockfileType(filePath: string): 'npm' | 'yarn' | 'bun' | null;
/**
 * Check if content is a lockfile based on structure
 */
export declare function isLockfileContent(content: string, filePath: string): boolean;
/**
 * Parse npm package-lock.json (supports v1, v2, v3)
 */
export declare function parseNpmLockfile(content: string): ParsedLockfile;
/**
 * Parse yarn.lock (supports classic v1 and berry/v2+)
 */
export declare function parseYarnLockfile(content: string): ParsedLockfile;
/**
 * Parse bun.lock (JSON format)
 *
 * Bun lockfile format (v1):
 * {
 *   "lockfileVersion": 1,
 *   "packages": {
 *     "pkg-name": ["pkg-name@version", "resolved-url", { deps }, "integrity-hash"],
 *     "@scope/pkg": ["@scope/pkg@version", "", { deps }, "sha512-..."],
 *   }
 * }
 *
 * Array format: [name@version, resolved_url, meta_object, integrity_hash]
 * Note: resolved_url is often empty string for packages from default registry
 */
export declare function parseBunLockfile(content: string): ParsedLockfile;
/**
 * Parse a lockfile based on its type
 */
export declare function parseLockfile(content: string, filePath: string): ParsedLockfile | null;
/**
 * Extract host from a resolved URL
 */
export declare function extractHost(resolvedUrl: string): string | null;
/**
 * Extract protocol/scheme from a resolved URL
 */
export declare function extractScheme(resolvedUrl: string): string | null;
/**
 * Extract package name from a resolved URL
 * Works for npm/yarn registry URLs like:
 * - https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz
 * - https://registry.npmjs.org/@babel/core/-/core-7.0.0.tgz
 */
export declare function extractPackageNameFromUrl(resolvedUrl: string): string | null;
/**
 * Extract integrity hash type (sha1, sha256, sha512, etc.)
 */
export declare function extractIntegrityType(integrity: string): string | null;
/**
 * Expand host aliases to actual hostnames
 */
export declare function expandHostAliases(hosts: string[]): string[];
/**
 * Registry aliases for convenience
 * @defaultValue
 * ```ts
 * {
 *   npm: 'registry.npmjs.org',
 *   yarn: 'registry.yarnpkg.com',
 *   verdaccio: 'registry.verdaccio.org'
 * }
 * ```
 */
export declare const REGISTRY_ALIASES: Record<string, string>;
/**
 * Lockfile parser for npm, yarn, and bun lockfiles.
 * Normalizes different formats into a unified structure for validation.
 */
export declare interface ParsedPackage {
  name: string
  version: string
  resolved?: string
  integrity?: string
}
export declare interface ParsedLockfile {
  type: 'npm' | 'yarn' | 'yarn-berry' | 'bun'
  packages: Map<string, ParsedPackage>
}