# Module of TWiki Enterprise Collaboration Platform, http://TWiki.org/
#
# Copyright (C) 2005-2018 Peter Thoeny, peter[at]thoeny.org
# and TWiki Contributors. All Rights Reserved. TWiki Contributors
# are listed in the AUTHORS file in the root of this distribution.
# NOTE: Please extend that file, not this notice.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 3
# of the License, or (at your option) any later version. For
# more details read LICENSE in the root of this distribution.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
# As per the GPL, removal of this notice is prohibited.
#
# Author: Crawford Currie http://c-dot.co.uk

=begin twiki

---+ package TWiki::Query::OP_like

=cut

package TWiki::Query::OP_like;
use base 'TWiki::Query::BinaryOP';

use strict;

sub new {
    my $class = shift;
    return $class->SUPER::new(name => '~', prec => 500);
}

sub evaluate {
    my $this = shift;
    my $node = shift;
    return $this->evalTest( $node,
        \@_,
        sub {
            my $expr = quotemeta($_[1]);
            # quotemeta will have escapes * and ? wildcards
            $expr =~ s/\\\?/./g;
            $expr =~ s/\\\*/.*/g;
            defined($_[0]) && defined($_[1]) &&
              $_[0] =~ m/^$expr$/s ? 1 : 0;
        } );
}

1;