#  Copyright (c) 1997-2021
#  Ewgenij Gawrilow, Michael Joswig, and the polymake team
#  Technische Universität Berlin, Germany
#  https://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.
#-------------------------------------------------------------------------------

# == SUMMARY ==
# - rename SymmetricFan to PolyhedralFan
# - rename MATRIX_GROUP_ACTION to MATRIX_ACTION
# - replace PermutationActionOnSets by group::PermutationActionOnSets


upgrade 3.1.1 fan::SymmetricFan {
   my ($obj) = @_;
   if (exists $obj->{_type}) {
      $obj->{_type} =~ s/\bSymmetricFan\b/PolyhedralFan/g;
   }
}


# rename property MATRIX_GROUP_ACTION to MATRIX_ACTION,
# including subobject names and description texts

sub rename_MATRIX_GROUP {
   my ($obj, $prop) = @_;
   my $subobj = delete $obj->{$prop};
   if (exists $subobj->{_id}) {
      $subobj->{_id} =~ s/matrix_group_action/matrix_action/;
   }
   if (defined($subobj->{_info})) {
      $subobj->{_info}{description} =~ s/\bMATRIX_GROUP_ACTION\b/MATRIX_ACTION/g;
   }
   $obj->{MATRIX_ACTION} = $subobj;
   true
}

upgrade 3.1.1 polytope::Cone.GROUP.MATRIX_GROUP_ACTION = \&rename_MATRIX_GROUP;

upgrade 3.1.1 fan::PolyhedralFan.GROUP.MATRIX_GROUP_ACTION = \&rename_MATRIX_GROUP;


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