#  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 ==
# - Replace list of variable names in a polynomial Ring with the number of variables (for data files escaped between releases)
# - Rename GROEBNER.ORDER into GROEBNER.ORDER_NAME
# - Delete N_INEQUALITIES, N_EQUATIONS and SUPPORT_SIZE
# - In Matroids, rename POINTS, BINARY_POINTS and TERNARY_POINTS into VECTORS, BINARY_VECTORS and TERNARY_VECTORS resp.


upgrade 2.13.1 ideal::Ideal.HILBERT_POLYNOMIAL {
   my ($obj, $prop) = @_;
   fix_polynomial_ring($obj->{$prop});
}

upgrade 2.13.1 ideal::Ideal.GENERATORS | BASIS {
   my ($obj, $prop) = @_;
   if (defined(my $value = $obj->{$prop})) {
      my $changed = 0;
      $changed += fix_polynomial_ring($_) for @$value;
      $changed > 0
   }
}

upgrade 2.13.1 graph::Graph.CHARACTERISTIC_POLYNOMIAL {
   my ($obj, $prop) = @_;
   fix_polynomial_ring($obj->{$prop});
}

sub fix_polynomial_ring {
   my ($poly) = @_;
   if (defined($poly) && is_array($poly->[-1])) {
      push @$poly, scalar @{ pop @$poly };
      true
   }
}

upgrade 2.13.1 ideal::Ideal.GROEBNER.ORDER = rename ORDER_NAME;

upgrade 2.13.2 polytope::Cone.N_INEQUALITIES | N_EQUATIONS = delete;

upgrade 2.13.2 tropical::Hypersurface.SUPPORT_SIZE = delete;

upgrade 2.13.3 matroid::Matroid.POINTS = rename VECTORS;

upgrade 2.13.3 matroid::Matroid.BINARY_POINTS = rename BINARY_VECTORS;

upgrade 2.13.3 matroid::Matroid.TERNARY_POINTS = rename TERNARY_VECTORS;

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# mode: perl
# cperl-indent-level: 3
# indent-tabs-mode:nil
# End:
