utfcheck - 1.2-3+b1 main

The utfcheck program examines a text file and prints a summary
of what the file contains: ASCII, UTF-8, UTF-16 (either big-endian
or little-endian based on an initial Byte Order Mark), or binary
data. ASCII and UTF-8 files are processed further; UTF-16 and
binary files are not. For a UTF-8 file, the summary includes
whether or not the file begins with the Unicode Byte Order Mark
(U+FEFF). Any following data encountered that is not well-formed
ASCII or UTF-8 Unicode is considered to be binary data; upon
reading such data the input file is considered not to be a proper
text file and the program exits with an error status.
.
The utfcheck program returns an exit status of EXIT_SUCCESS if
the text file was well-formed, and EXIT_FAILURE otherwise.