/**
 * Text display width utilities
 *
 * Pure functions for calculating and truncating text based on
 * terminal display width, with full-width (CJK) character support.
 */
export declare const MAX_TERMINAL_OUTPUT_BYTES: number;
/** Check if a Unicode code point occupies 2 terminal columns. */
export declare function isFullWidth(code: number): boolean;
/** Calculate the display width of a plain text string. */
export declare function getDisplayWidth(text: string): number;
/**
 * Strip all ANSI escape sequences from a string.
 * Removes CSI sequences (colors, cursor motion, etc.),
 * OSC sequences, and other single-character escape codes.
 */
export declare function stripAnsi(text: string): string;
/**
 * Sanitize terminal-bound text by removing ANSI escapes and visualizing control characters.
 */
export declare function sanitizeTerminalText(text: string): string;
/** Sanitize streamed terminal text while preserving LF and TAB and removing CR. */
export declare function sanitizeTerminalStreamText(text: string): string;
export declare function truncateUtf8WithMarker(text: string, maxBytes: number, createMarker: (omittedBytes: number) => string): string;
export declare function truncateUtf8PreservingMarker(text: string, maxBytes: number): string;
export declare function sanitizeTerminalTextWithinBytes(text: string, maxBytes: number): string;
/**
 * Truncate plain text to fit within maxWidth display columns.
 * Appends '…' if truncated. The ellipsis itself counts as 1 column.
 */
export declare function truncateText(text: string, maxWidth: number): string;
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