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#!/usr/bin/perl -w
# Copyright 2012, 2015 Kevin Ryde
# This file is part of Math-PlanePath.
#
# Math-PlanePath 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, or (at your option) any later
# version.
#
# Math-PlanePath 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.
#
# You should have received a copy of the GNU General Public License along
# with Math-PlanePath. If not, see <http://www.gnu.org/licenses/>.
use 5.004;
use strict;
use HTML::Entities::Interpolate;
use List::Util;
use URI::Escape;
use Tie::IxHash;
use Math::BigInt;
use Math::PlanePath::CellularRule;
# uncomment this to run the ### lines
#use Smart::Comments;
{
# greps
my %done;
tie %done, 'Tie::IxHash';
foreach my $rule (0 .. 255) {
my $path = Math::PlanePath::CellularRule->new(rule=>$rule);
my @values;
# {
# # 0/1 cells
# Y01: foreach my $y (0 .. 10) {
# foreach my $x (-$y .. $y) {
# if (defined ($path->xy_to_n($x,$y))) {
# push @values, 1;
# } else {
# push @values, 0;
# }
# last Y01 if (@values > 100);
# }
# }
# }
{
# bignum rows
my $base = 10; # 2 or 10
Y01: foreach my $y (0 .. 20) {
my $n = '';
foreach my $x (-$y .. $y) {
$n .= defined $path->xy_to_n($x,$y) ? '1' : '0';
}
$n =~ s/^0+//;
if ($n eq '') { $n = 0; }
if ($base == 10) {
Math::BigInt->new("0b$n");
}
push @values, $n;
}
}
my $values = join(',',@values);
$done{$values} .= ",$rule";
}
foreach my $values (keys %done) {
my $name = $done{$values};
$name =~ s/^,//;
$name = "rule=".$name;
print "$name\n";
print "values $values\n";
my @values = split /,/, $values;
require Math::OEIS::Grep;
Math::OEIS::Grep->search(array => \@values,
name => $name,
verbose => 0,
);
}
exit 0;
}
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