EncErrors {.pure.} = enum
  strict,                   ## - raise a ValueError error (or a subclass)
  ignore,                   ## - ignore the character and continue with the next
  replace,                  ## - replace with a suitable replacement character;
                             ## Python will use the official U+FFFD REPLACEMENT
                             ## CHARACTER for the builtin Unicode codecs on
                             ## decoding and "?" on encoding.
  surrogateescape,          ## - replace with private code points U+DCnn.
  xmlcharrefreplace,        ## - Replace with the appropriate XML
                             ##   character reference (only for encoding).
  backslashreplace,         ## - Replace with backslashed escape sequences.
  namereplace                ## - Replace with \N{...} escape sequences
                             ##   (only for encoding).

NCodecInfo = object
  name*: string
  errors*: string
  encode*, decode*: EncoderCvt
  close*: EncoderClose

DefErrors = "strict"