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Manual Reference Pages  -  CHEMISTRY::PATTERN::BOND (3)

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NAME

Chemistry::Pattern::Bond - A bond that knows how to match

CONTENTS

SYNOPSIS



    my $patt_bond = Chemistry::Pattern::Bond->new(order => 2);
    $patt_bond->test_sub( sub {
        my ($what, $where) = @_;
        $where->type eq purple ? 1 : 0; # only match purple bonds
    });



DESCRIPTION

Objects of this class represent bonds in a pattern. This is a subclass of Chemistry::Bond. In addition to the properties of regular bonds, pattern bonds have a method for testing if they match an bond in a molecule. By default, a pattern bond matches an bond if they have the same bond order or both are aromatic. It is possible to substitute this by an arbitrary criterion by providing a custom test subroutine.

METHODS

$patt_bond->test($bond) Tests if the pattern bond matches the bond given by $bond. Returns true or false.
$patt_bond->test_sub(\&my_test_sub) Specify an arbitrary test subroutine to be used instead of the default one. &my_test_sub must take two parameters; the first one is the pattern bond and the second is the bond to match. It must return true if there is a match.
$patt_bond->map_to([$bond]) Returns or sets the bond that is considered to be matched by $patt_bond.

VERSION

0.27

SEE ALSO

Chemistry::Pattern

The PerlMol website <http://www.perlmol.org/>

AUTHOR

Ivan Tubert-Brohman <itub@cpan.org>

COPYRIGHT

Copyright (c) 2009 Ivan Tubert-Brohman. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
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perl v5.20.3 PATTERN::BOND (3) 2009-05-10

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