/**
 * ISO 15924 script codes registry
 * This file contains data for validating script subtags against the official registry
 */
/**
 * Map of valid ISO 15924 script codes
 * Key: script code, Value: script name
 */
export declare const ISO_15924_SCRIPTS: Record<string, string>;
/**
 * Map of deprecated script codes to their preferred values
 */
export declare const SCRIPT_PREFERRED_VALUES: Record<string, string>;
/**
 * Map of language subtags that have a default script
 * that should be suppressed in canonical form
 * Based on RFC 5646 Section 4.1
 */
export declare const LANGUAGE_SUPPRESS_SCRIPT: Record<string, string>;
/**
 * Checks if a script code is valid according to ISO 15924
 *
 * @param code The script code to validate
 * @returns True if the code is valid, false otherwise
 */
export declare function isValidScriptCode(code: string): boolean;
/**
 * Returns the canonical form of a script code (title case)
 *
 * @param code The script code to normalize
 * @returns The normalized script code
 */
export declare function normalizeScriptCode(code: string): string;
/**
 * Checks if a script code has a preferred value in the registry
 *
 * @param code The script code to check
 * @returns True if the code has a preferred value, false otherwise
 */
export declare function hasPreferredScriptValue(code: string): boolean;
/**
 * Gets the preferred value for a script code
 *
 * @param code The script code to get the preferred value for
 * @returns The preferred value or the original code if no preferred value exists
 */
export declare function getScriptPreferredValue(code: string): string;
/**
 * Gets the default script for a language subtag that should be suppressed
 * in canonical form
 *
 * @param language The language subtag to get the suppress script for
 * @returns The script that should be suppressed or undefined if not applicable
 */
export declare function getLanguageSubtagSuppressScript(language: string): string | undefined;
/**
 * Checks if a script subtag is redundant for a given language
 * A script is redundant if it's the default script for the language
 *
 * @param language The language subtag
 * @param script The script subtag
 * @returns True if the script is redundant, false otherwise
 */
export declare function hasRedundantScript(language: string, script: string): boolean;