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@jberger
Created January 19, 2012 16:59
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TiePDL
use strict;
use warnings;
package TiePDL;
our @ISA = 'PDL';
{
no strict 'refs';
*{'PDL::tie'} = sub {
my $self = shift;
bless $self, 'TiePDL';
}
}
use overload
'%{}' => sub {
my $pdl = shift;
tie my %hash, 'TiePDL::Class', $pdl;
return \%hash;
},
'&{}' => sub {
my $self = shift;
return sub { $self->slice(@_) };
};
package TiePDL::Class;
sub TIEHASH {
my ($class, $pdl) = @_;
my $self = {
pdl => $pdl,
};
bless $self, $class;
return $self;
}
sub FETCH {
my ($self, $subscript) = @_;
return $self->{pdl}->slice($subscript);
}
sub STORE {
my ($self, $subscript, $value) = @_;
$self->FETCH($subscript) = $value;
return $value;
}
1;
__END__
use example:
#!/usr/bin/env perl
use strict;
use warnings;
use PDL;
use TiePDL;
my $pdl = xvals(7);
$pdl->tie;
print $pdl->{'1:3'};
print $pdl->('1:3');
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