Function isXtermJs

src/ink/terminal.ts:143–146

()

 *  SSH — query/reply goes through the pty). Early calls may miss the probe
 *  reply — call lazily (e.g. in an event handler) if SSH detection matters. */
export function isXtermJs(): boolean {
  if (process.env.TERM_PROGRAM === 'vscode') return true
  return xtversionName?.startsWith('xterm.js') ?? false
}

// Terminals known to correctly implement the Kitty keyboard protocol
// (CSI >1u) and/or xterm modifyOtherKeys (CSI >4;2m) for ctrl+shift+<letter>