export declare const isSingleQuoted: (maybeQuotedString: string) => boolean;
export declare const isDoubleQuoted: (maybeQuotedString: string) => boolean;
export declare const isQuoted: (maybeQuotedString: string) => boolean;
/**
 * Normalizes a string by removing surrounding quotes and unescaping corresponding escaped quotes
 * @param maybeQuotedString string to remove surrounding quotes from
 * @returns {string} unquoted, unescaped string
 */
export declare const normalize: (maybeQuotedString: string) => string;
/**
 * Case and accent insensitive comparison of two strings
 *
 * Examples:
 * - areStringsEquivalent('a', 'A') -> true
 * - areStringsEquivalent('a', 'á') -> true
 * - areStringsEquivalent('a', 'b') -> false
 *
 * @param a first string to compare
 * @param b second string to compare
 * @returns {boolean} true if strings are equivalent
 */
export declare const areStringsEquivalent: (a: string, b: string) => boolean;