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#!/usr/bin/perl
use strict;
use warnings;
use Graph::Grammar;
use Graph::Undirected;
use Test::More;
my @rules = (
[ 'delete red nodes',
sub { 1 }, EDGE { $_[0]->get_edge_attribute( $_[1], $_[2], 'color' ) eq 'red' }, sub { 1 },
sub { $_[0]->delete_edge( $_[1], $_[2] ) } ],
);
plan tests => 1;
my $g = Graph::Undirected->new;
$g->add_cycle( 1..6 );
for ($g->edges) {
$g->set_edge_attribute( @$_, 'color', 'black' );
}
$g->set_edge_attribute( 1, 2, 'color', 'red' );
$g->set_edge_attribute( 3, 4, 'color', 'red' );
$g->set_edge_attribute( 5, 6, 'color', 'red' );
parse_graph( $g, @rules );
is scalar $g->edges, 3;
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