NAME
    Graph::Reader::TGF::CSV - Perl class for reading a graph from TGF format
    with CSV labeling.

SYNOPSIS
     use Graph::Reader::TGF::CSV;
     my $obj = Graph::Reader::TGF::CSV->new;
     my $graph = $obj->read_graph($tgf_csv_file);

METHODS
    "new()"
             Constructor.
             This doesn't take any arguments.
             Returns Graph::Reader::TGF::CSV object.

    "read_graph($tgf_csv_file)"
             Read a graph from the specified file.
             The argument can either be a filename, or a filehandle for a previously opened file.
             Returns Graph object.

TGF WITH CSV LABELING FILE FORMAT
     TGF = Trivial Graph Format
     TGF file format is described on L<English Wikipedia - Trivial Graph Format|https://en.wikipedia.org/wiki/Trivial_Graph_Format>
     Example with CSV labeling:
     1 label=First node,color=red
     2 label=Second node,color=cyan
     #
     1 2 label=Edge between the two,color=green

ERRORS
     new():
             Cannot create Text::CSV object.
                     Error: %s
             Cannot parse edge label.
                     Error: %s
                     String: %s
             Cannot parse vertex label.
                     Error: %s
                     String: %s

EXAMPLE
     # Pragmas.
     use strict;
     use warnings;

     # Modules.
     use Graph::Reader::TGF::CSV;
     use IO::Barf qw(barf);
     use File::Temp qw(tempfile);

     # Example data.
     my $data = <<'END';
     1 label=First node,green=red
     2 label=Second node,green=cyan
     #
     1 2 label=Edge between the two,color=green
     END

     # Temporary file.
     my (undef, $tempfile) = tempfile();

     # Save data to temp file.
     barf($tempfile, $data);

     # Reader object.
     my $obj = Graph::Reader::TGF->new;

     # Get graph from file.
     my $g = $obj->read_graph($tempfile);

     # Print to output.
     print $g."\n";

     # Clean temporary file.
     unlink $tempfile;

     # Output:
     # 1-2

DEPENDENCIES
    Error::Pure, Graph::Reader::TGF, Text::CSV.

SEE ALSO
    Graph::Reader
        base class for Graph file format readers

    Task::Graph::Reader
        Install the Graph::Reader modules.

REPOSITORY
    <https://github.com/tupinek/Graph-Reader-TGF-CSV>

AUTHOR
    Michal Špaček <mailto:skim@cpan.org>

    <http://skim.cz>

LICENSE AND COPYRIGHT
     © 2014-2015 Michal Špaček
     BSD 2-Clause License

VERSION
    0.02

