static create(
    r,
    size = DEFAULT_BUF_SIZE,
  ) {
    return r instanceof BufReader ? r : new BufReader(r, size);
  }
/** return new BufReader unless r is BufReader */
return new BufReader unless r is BufReader
return new BufReader unless r is BufReader
static create(
    r,
    size = DEFAULT_BUF_SIZE,
  ) {
    return r instanceof BufReader ? r : new BufReader(r, size);
  }
static create ( r , size = DEFAULT_BUF_SIZE , ) { return r instanceof BufReader ? r : new BufReader ( r , size ) ; }
return new BufReader unless r is BufReader
return new BufReader unless r is BufReader