IO::TieCombine - produce tied (and other) separate but combined
First, we set up a bunch of access points:
my $hub = IO::TieCombine->new;
my $str_ref = $hub->scalar_ref('x');
my $fh = $hub->fh('x');
my $callback = $hub->callback('x');
tie my $scalar, $hub, 'x';
tie local *STDOUT, $hub, 'x';
tie local *STDERR, $hub, 'err';
Then we write to things:
$$str_ref .= 'And ';
print $fh "now ";
$scalar .= 'something ';
print "completely ";
$hub->combined_contents; # And now for something completely different.
$hub->slot_contents('x'); # And now for something completely
$hub->slot_contents('err'); # different.
ACHTUNG!! Because of a serious problem with Perl 5.10.0, output sent
to a tied filehandle using "say" will not have the expected newline.
5.10.1 or later is needed. Since 5.10.0 is broken in so many other
ways, you should really upgrade anyway.
ACHTUNG!! Because of a different problem with Perls 5.10.1 - 5.16.3,
if you send output to a tied filehandle using "say", and "$\" is
undefined (which is the default), "$\" will not be restored to "undef"
after the "say"! This means that once you've used "say" to print to
any tied filehandle, you have corrupted the global state of your
program. Either start your program by setting "$\" to an empty string,
which should be safe, or upgrade to 5.18.0.
The constructor takes no arguments.
This method returns the contents of all collected data.
my $str = $hub->slot_contents( $slot_name );
This method returns the contents of all collected data for the named
$hub->clear_slot( $slot_name );
This sets the slot back to an empty string.
my $fh = $hub->fh( $slot_name );
This method returns a reference to a tied filehandle. When printed to,
output is collected in the named slot.
my $str_ref = $hub->scalar_ref( $slot_name );
This method returns a reference to scalar. When appended to, the new
content is collected in the named slot. Attempting to alter the string
other than by adding new content to its end will result in an
my $code = $hub->callback( $slot_name );
Ricardo SIGNES <firstname.lastname@example.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2013 by Ricardo SIGNES.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.