package utf8;
+
$utf8::hint_bits = 0x00800000;
+our $VERSION = '1.00';
+
sub import {
$^H |= $utf8::hint_bits;
$enc{caller()} = $_[1] if $_[1];
sub AUTOLOAD {
require "utf8_heavy.pl";
- goto &$AUTOLOAD;
+ goto &$AUTOLOAD if defined &$AUTOLOAD;
+ Carp::croak("Undefined subroutine $AUTOLOAD called");
}
1;
=head1 DESCRIPTION
WARNING: The implementation of Unicode support in Perl is incomplete.
-Expect sudden and unannounced changes!
+See L<perlunicode> for the exact details.
The C<use utf8> pragma tells the Perl parser to allow UTF-8 in the
program text in the current lexical scope. The C<no utf8> pragma
source text. Until UTF-8 becomes the default format for source
text, this pragma should be used to recognize UTF-8 in the source.
When UTF-8 becomes the standard source format, this pragma will
-effectively become a no-op.
+effectively become a no-op. This pragma already is a no-op on
+EBCDIC platforms (where it is alright to code perl in EBCDIC
+rather than UTF-8).
Enabling the C<utf8> pragma has the following effects:
-=over
+=over 4
=item *
@chars = split //, $data; # splits characters
}
+=back
+
+=head2 Utility functions
+
+The following functions are defined in the C<utf8::> package by the perl core.
+
+=over 4
+
+=item * $num_octets = utf8::upgrade($string);
+
+Converts internal representation of string to the perls internal UTF-X form.
+Returns the number of octets necessary to represent the string as UTF-X.
+
+=item * utf8::downgrade($string[, CHECK])
+
+Converts internal representation of string to be un-encoded bytes.
+
+=item * utf8::encode($string)
+
+Converts (in-place) I<$string> from logical characters to octet sequence
+representing it in perl's UTF-X encoding.
+
+=item * $flag = utf8::decode($string)
+
+Attempts to converts I<$string> in-place from perl's UTF-X encoding into logical characters.
+
+=back
+
=head1 SEE ALSO
L<perlunicode>, L<bytes>