Function scrollUp

src/ink/termio/csi.ts:255–257

(n = 1)

/** Scroll up n lines (CSI n S) */
export function scrollUp(n = 1): string {
  return n === 0 ? '' : csi(n, 'S')
}

/** Scroll down n lines (CSI n T) */
export function scrollDown(n = 1): string {