Function limitOptions

packages/prompts/src/limit-options.ts:96–210

({
	cursor,
	options,
	style,
	output = process.stdout,
	maxItems = Number.POSITIVE_INFINITY,
	columnPadding = 0,
	rowPadding = 4,
}: LimitOptionsParams<TOption>)

 * ```
 */
export const limitOptions = <TOption>({
	cursor,
	options,
	style,
	output = process.stdout,
	maxItems = Number.POSITIVE_INFINITY,
	columnPadding = 0,
	rowPadding = 4,
}: LimitOptionsParams<TOption>): string[] => {
	const columns = getColumns(output);
	const maxWidth = columns - columnPadding;
	const rows = getRows(output);
	const overflowFormat = styleText('dim', '...');

	const outputMaxItems = Math.max(rows - rowPadding, 0);
	// We clamp to minimum 5 because anything less doesn't make sense UX wise
	const computedMaxItems = Math.max(Math.min(maxItems, outputMaxItems), 5);
	let slidingWindowLocation = 0;

	if (cursor >= computedMaxItems - 3) {
		slidingWindowLocation = Math.max(
			Math.min(cursor - computedMaxItems + 3, options.length - computedMaxItems),
			0
		);
	}

	let shouldRenderTopEllipsis = computedMaxItems < options.length && slidingWindowLocation > 0;
	let shouldRenderBottomEllipsis =
		computedMaxItems < options.length && slidingWindowLocation + computedMaxItems < options.length;

	const slidingWindowLocationEnd = Math.min(
		slidingWindowLocation + computedMaxItems,
		options.length
	);
	const lineGroups: Array<string[]> = [];
	let lineCount = 0;
	if (shouldRenderTopEllipsis) {
		lineCount++;
	}
	if (shouldRenderBottomEllipsis) {
		lineCount++;
	}

	const slidingWindowLocationWithEllipsis =
		slidingWindowLocation + (shouldRenderTopEllipsis ? 1 : 0);
	const slidingWindowLocationEndWithEllipsis =
		slidingWindowLocationEnd - (shouldRenderBottomEllipsis ? 1 : 0);

	for (let i = slidingWindowLocationWithEllipsis; i < slidingWindowLocationEndWithEllipsis; i++) {
		const wrappedLines = wrapAnsi(style(options[i], i === cursor), maxWidth, {
			hard: true,
			trim: false,
		}).split('\n');
		lineGroups.push(wrappedLines);
		lineCount += wrappedLines.length;
	}

	if (lineCount > outputMaxItems) {