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require 5;
package Pod::Simple::Progress;
$VERSION = '3.35';
use strict;
# Objects of this class are used for noting progress of an
# operation every so often. Messages delivered more often than that
# are suppressed.
#
# There's actually nothing in here that's specific to Pod processing;
# but it's ad-hoc enough that I'm not willing to give it a name that
# implies that it's generally useful, like "IO::Progress" or something.
#
# -- sburke
#
#--------------------------------------------------------------------------
sub new {
my($class,$delay) = @_;
my $self = bless {'quiet_until' => 1}, ref($class) || $class;
$self->to(*STDOUT{IO});
$self->delay(defined($delay) ? $delay : 5);
return $self;
}
sub copy {
my $orig = shift;
bless {%$orig, 'quiet_until' => 1}, ref($orig);
}
#--------------------------------------------------------------------------
sub reach {
my($self, $point, $note) = @_;
if( (my $now = time) >= $self->{'quiet_until'}) {
my $goal;
my $to = $self->{'to'};
print $to join('',
($self->{'quiet_until'} == 1) ? () : '... ',
(defined $point) ? (
'#',
($goal = $self->{'goal'}) ? (
' ' x (length($goal) - length($point)),
$point, '/', $goal,
) : $point,
$note ? ': ' : (),
) : (),
$note || '',
"\n"
);
$self->{'quiet_until'} = $now + $self->{'delay'};
}
return $self;
}
#--------------------------------------------------------------------------
sub done {
my($self, $note) = @_;
$self->{'quiet_until'} = 1;
return $self->reach( undef, $note );
}
#--------------------------------------------------------------------------
# Simple accessors:
sub delay {
return $_[0]{'delay'} if @_ == 1; $_[0]{'delay'} = $_[1]; return $_[0] }
sub goal {
return $_[0]{'goal' } if @_ == 1; $_[0]{'goal' } = $_[1]; return $_[0] }
sub to {
return $_[0]{'to' } if @_ == 1; $_[0]{'to' } = $_[1]; return $_[0] }
#--------------------------------------------------------------------------
unless(caller) { # Simple self-test:
my $p = __PACKAGE__->new->goal(5);
$p->reach(1, "Primus!");
sleep 1;
$p->reach(2, "Secundus!");
sleep 3;
$p->reach(3, "Tertius!");
sleep 5;
$p->reach(4);
$p->reach(5, "Quintus!");
sleep 1;
$p->done("All done");
}
#--------------------------------------------------------------------------
1;
__END__