utf8-io defines several utilities for performing UTF-8 I/O.

• ReadStr and WriteStr are traits which extend [Read] and [Write]
  providing read_str and write_str functions for reading and writing UTF-8
  data.

• Utf8Reader and Utf8Writer implement ReadStr and WriteStr and
  wrap arbitrary Read and Write implementations. Utf8Reader translates
  invalid UTF-8 encodings into replacements (U+FFFD), while Utf8Writer
  reports errors on invalid UTF-8 encodings. Both ensure that scalar values
  are never split at the end of a buffer.

• Utf8Duplexer represents an interactive stream and implements both
  ReadStr and WriteStr.

Similar crates

Utf8Reader is similar utf8-read, but differs in that it silently turns
invalid byte sequences into replacement characters rather than reporting an
error.