/**
 * Precise terminal-cell width measurement — the single authority every
 * budget, wrap, and truncation path shares. The previous heuristic
 * (`codePoint > 0x2e7f ? 2 : 1)) mis-sized Hangul Jamo (narrow), high
 * non-CJK code points (wide), and emoji: text-default glyphs like ✳ ⚠ ❤
 * counted 2 while terminals draw 1, and VS16 sequences counted 1 while
 * terminals draw 2 — the exact drift class the community dsh-TUI string
 * engine documents (a spinner glyph drifting one column per frame). This
 * module adapts that engine's rules without its Ink-fork renderer: an ASCII
 * fast path, grapheme-cluster iteration via Intl.Segmenter (code-point
 * fallback), a merged East-Asian-Wide/Fullwidth + Emoji_Presentation range
 * table, text-default emoji = 1, VS16 = 2, marks/selectors/ZWJ = 0.
 * @module @deepseek-ai/dsh-code/render/width
 */
/** Split text into grapheme clusters (code points when Segmenter is absent). */
export declare function splitGraphemes(text: string): string[];
/** Terminal-cell width of one grapheme cluster. */
export declare function graphemeWidth(cluster: string): number;
/** Terminal-cell width of one code point (surrogate pairs must stay paired). */
export declare function codePointWidth(char: string): number;
/**
 * Terminal-cell width of a string: an ASCII fast path avoids the segmenter
 * for the overwhelmingly common case; everything else sums grapheme clusters.
 * Control characters occupy no cells (display sanitization makes them
 * visible escapes before they ever reach a budget).
 * @param text - display-safe or raw text to measure.
 * @returns the column count the terminal will draw.
 */
export declare function stringWidth(text: string): number;