Spreadsheet::Engine::Fn::logical - base class for logical functions

Spreadsheet-Engine documentation Contained in the Spreadsheet-Engine distribution.

Index

Code Index:

NAME

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Spreadsheet::Engine::Fn::logical - base class for logical functions

SYNOPSIS

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  use base 'Spreadsheet::Engine::Fn::logical';

  sub calculate { return 1 | 0 }

DESCRIPTION

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This provides a base class for spreadsheet functions that perform return a TRUE or FALSE value.

INSTANCE METHODS

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calculate

Subclasses should provide 'calculate' function that will return either 1 or 0.

HISTORY

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This is a Modified Version of code extracted from SocialCalc::Functions in SocialCalc 1.1.0

COPYRIGHT

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Portions (c) Copyright 2005, 2006, 2007 Software Garden, Inc. All Rights Reserved.

Portions (c) Copyright 2007 Socialtext, Inc. All Rights Reserved.

Portions (c) Copyright 2008 Tony Bowden

LICENCE

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The contents of this file are subject to the Artistic License 2.0; you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.perlfoundation.org/artistic_license_2_0

Spreadsheet-Engine documentation Contained in the Spreadsheet-Engine distribution. 
package Spreadsheet::Engine::Fn::logical;

use strict;
use warnings;

use base 'Spreadsheet::Engine::Fn::base';

sub argument_count { 1 }

sub result {
  my $self = shift;
  my $result = $self->calculate ? 1 : 0;
  return Spreadsheet::Engine::Value->new(type => 'nl', value => $result);
}

1;

__END__