Function link

src/ink/termio/osc.ts:403–410

(url: string, params?: Record<string, string>)

 *  wrapped line is a separate link — inconsistent hover, partial tooltips).
 *  Empty url = close sequence (empty params per spec). */
export function link(url: string, params?: Record<string, string>): string {
  if (!url) return LINK_END
  const p = { id: osc8Id(url), ...params }
  const paramStr = Object.entries(p)
    .map(([k, v]) => `${k}=${v}`)
    .join(':')
  return osc(OSC.HYPERLINK, paramStr, url)
}

function osc8Id(url: string): string {
  let h = 0