my $attribute = 3;
my $condition = '$attribute == 3 or $attribute == 4';
print +((eval $condition)? "TRUE" : "FALSE",
        ($@)? " (warning: $@)" : '',
        $/);

[download]
Do be aware that there are security considerations to using eval to arbitrarily evaluate a user-supplied chunk of Perl syntax.

--
[ e d @ h a l l e y . c c ]

In reply to Re: Parsing conditional expressions by halley
in thread Parsing conditional expressions by Lorand

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