#!/usr/bin/perl -w
#############################################################################
# This example is a bit outdated, please use the new bin/graph-easy script -
# which is after "make install" available on any command line in your system.
# Convert an input file containing a Graph::Easy object, then dump
# it again as textual description.
# Example usage:
#  examples/as_txt t/in/2nodes.txt
#  echo "[ A ] -> [ B ]" | examples/as_txt
BEGIN { $|++; }
use lib 'lib';
use Graph::Easy::Parser;
my $file = shift;
my $id = shift || '';
my $debug = shift;
my $parser = Graph::Easy::Parser->new( debug => $debug );
if (!defined $file)
  {
  $file = \*STDIN;
  binmode STDIN, ':utf8' or die ("binmode STDIN, ':utf8' failed: $!");
  }
my $graph = $parser->from_file( $file );
die ($parser->error()) unless defined $graph;
$graph->id($id);
warn($graph->error()) if $graph->error();
binmode STDOUT, ':utf8' or die ("binmode STDOUT, ':utf8' failed: $!");
print $graph->as_txt();