code: def trunc(obj, max, left=0):
      
      s = str(obj)
      s = s.replace('\n', '|')
      if len(s) > max:
          if left:
              return '...'+s[len(s)-max+3:]
          else:
              return s[:(max-3)]+'...'
      else:
          return s
docs: Convert `obj` to string, eliminate newlines and truncate the string to `max`
      characters. If there are more characters in the string add ``...`` to the
      string. With `left=True`, the string can be truncated at the beginning.
  
      @note: Does not catch exceptions when converting `obj` to string with `str`.
  
      >>> trunc('This is a long text.', 8)
      This ...
      >>> trunc('This is a long text.', 8, left)
      ...text.