/**
 * Copyright(c) 2014 ABB Switzerland Ltd.
 *
 * String utility functions
 */
/**
 * Pad a string by adding characters to the beginning.
 * @param s	the string to pad
 * @param width	the desired minimum string width
 * @param char	the single character to pad with
 * @return	the padded string
 * @throws timezonecomplete.Argument.Width if width is not an integer number >= 0
 */
export declare function padLeft(s: string, width: number, char: string): string;
/**
 * Pad a string by adding characters to the end.
 * @param s	the string to pad
 * @param width	the desired minimum string width
 * @param char	the single character to pad with
 * @return	the padded string
 * @throws timezonecomplete.Argument.Width if width is not an integer number >= 0
 */
export declare function padRight(s: string, width: number, char: string): string;