Function wrapForMultiplexer

src/ink/termio/osc.ts:35–44

(sequence: string)

 * wrapped \x07 is opaque DCS payload and tmux never sees the bell.
 */
export function wrapForMultiplexer(sequence: string): string {
  if (process.env['TMUX']) {
    const escaped = sequence.replaceAll('\x1b', '\x1b\x1b')
    return `\x1bPtmux;${escaped}\x1b\\`
  }
  if (process.env['STY']) {
    return `\x1bP${sequence}\x1b\\`
  }
  return sequence
}

/**
 * Which path setClipboard() will take, based on env state. Synchronous so