export declare function expandTabs(text: string, tabWidth?: number): string;
export declare function stringDisplayWidth(text: string): number;
export declare function sliceByDisplayWidth(text: string, width: number): string;
export declare function displayIndexForColumn(text: string, column: number): number;
export declare function sliceByDisplayColumns(text: string, startColumn: number, endColumn: number): string;
export type DisplayGrapheme = {
    text: string;
    width: number;
    start: number;
    end: number;
};
/**
 * Grapheme clusters of `text` with their display width and absolute string
 * indices. Iterating graphemes (instead of code points) is required for correct
 * width accounting: multi-codepoint emoji such as `⚠️` (U+26A0 U+FE0F), keycaps,
 * skin-tone modifiers and regional-indicator flags are one width-2 cluster even
 * though several of their code points have zero width.
 */
export declare function displayGraphemes(text: string): DisplayGrapheme[];
export declare function padOrTrimDisplay(text: string, width: number): string;
export declare function wrapDisplayLine(text: string, width: number): string[];
export declare function wrapDisplayLineByWords(text: string, width: number): string[];