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lib/JSON/Parse.pod  view on Meta::CPAN

    use Encode 'decode';
    my $input_utf8 = decode ('UTF-16', $input);
    my $perl = parse_json ($input_utf8);

or, for a file, use C<:encoding> (see L<PerlIO::encoding> and
L<perluniintro>):

    open my $input, "<:encoding(UTF-16)", 'some-json-file'; 

JSON::Parse does not try to determine the nature of the octet stream
using BOM markers. A BOM marker in the input consists of bytes C<0xFE>
and C<0xFF>, both of which are invalid as UTF-8, and thus will cause a
fatal error.

This restriction to UTF-8 applies regardless of whether Perl thinks
that the input string is a character string or a byte
string. Non-UTF-8 input will cause an L</Unexpected character> error.

The latest specification for JSON, L</RFC 8259>, specifies it to be a
UTF-8 only format.