/**
 * Trims whitespace from the left side of a string up to the offset
 * @param {*} str
 * @param {*} offset
 */
export declare function trimLeftMax(str: string, offset: number): string;
/**
 * Trims a multiline string
 * @param buffer
 * @param offset
 */
export declare function trimMultiQuote(buffer: string, offset: number): string;
/**
 * Truncates a string to the given length, adding ellipsis
 *
 * @param str
 * @param len
 */
export declare function truncate(str: string, len?: number, ellipsis?: string): string;
/**
 * Slugifys a string
 *
 * https://lucidar.me/en/web-dev/how-to-slugify-a-string-in-javascript/
 *
 * @param value
 */
export declare function slugify(value: string): string;
/**
 * Adds single quotes to a string if it does not already have them
 *
 * @param str
 * @returns
 */
export declare function ensureQuotes(str: string, quoteChar?: string): string;
/**
 * Removes single or double quotes from a string
 *
 * @param str
 * @returns
 */
export declare function removeQuotes(str: string): string;