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# Copyright (c) 1997-2015
# Ewgenij Gawrilow, Michael Joswig (Technische Universitaet Berlin, Germany)
# http://www.polymake.org
#
# 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 2, or (at your option) any
# later version: http://www.gnu.org/licenses/gpl.txt.
#
# 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. See the
# GNU General Public License for more details.
#-------------------------------------------------------------------------------
object Group {
rule DEGREE : GENERATORS {
$this->DEGREE=$this->GENERATORS->[0]->size;
}
#counts the number of elements in each transversal that are not null
rule TRANSVERSAL_SIZES : TRANSVERSALS{
my $trans_sizes=new Array<Int>($this->TRANSVERSALS->size);
for(my $i=0;$i<$this->TRANSVERSALS->size;$i++){
my $trans_size=1;
my $single_trans=$this->TRANSVERSALS->[$i];
for(my $j=0;$j<$single_trans->size;$j++){
if($single_trans->[$j]>=0){
$trans_size++;
}
}
$trans_sizes->[$i]=$trans_size;
}
$this->TRANSVERSAL_SIZES=$trans_sizes;
}
rule ORDER : TRANSVERSAL_SIZES {
my $order = new Integer(1);
foreach (@{$this->TRANSVERSAL_SIZES}) {
$order *= $_;
}
$this->ORDER = $order;
}
rule CONJUGACY_CLASSES : GENERATORS, CONJUGACY_CLASS_REPRESENTATIVES {
$this->CONJUGACY_CLASSES = conjugacy_classes($this->GENERATORS, $this->CONJUGACY_CLASS_REPRESENTATIVES);
}
rule CONJUGACY_CLASS_SIZES : CONJUGACY_CLASSES {
my @sizes = ();
foreach (@{$this->CONJUGACY_CLASSES}) {
push @sizes, $_->size;
}
$this->CONJUGACY_CLASS_SIZES = new Array<Int>(\@sizes);
}
}
# Local Variables:
# mode: perl
# cperl-indent-level:3
# indent-tabs-mode:nil
# End:
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