1234567891011121314151617181920212223242526272829303132333435363738394041424344454647
/** * Object that releases resources when "dispose" is invoked. */export interface Disposable {  /**   * Releases any resources held by the implementing object.   */  dispose(): void;}
function fnExit() {  Deno.exit();}
let disposed = false;
export function setHandler(onCtrlC: () => void = fnExit): Disposable {  if (!Deno.isatty(Deno.stdin.rid)) {    return {      dispose: () => {},    };  }
  Deno.stdin.setRaw(true);  disposed = false;
  function recursiveListen() {    const data: Uint8Array = new Uint8Array(1);    Deno.stdin.read(data).then(() => {      if (disposed) return;      if (data[0] === 0x03) {        onCtrlC();      }      recursiveListen();    });  }  recursiveListen();
  return {    dispose: () => {      disposed = true;      Deno.stdin.setRaw(false);      // pause    },  };}