NAME

       Graph::Reader::XML - class for reading a Graph instance from XML

SYNOPSIS

         use Graph::Reader::XML;
         use Graph;

         $reader = Graph::Reader::XML->new();
         $graph = $reader->read_graph('mygraph.xml');

DESCRIPTION

       Graph::Reader::XML is a perl class used to read a directed graph stored as XML, and return
       an instance of the Graph class.

       The XML format is designed to support the Graph classes: it can be used to represent a
       single graph with a collection of nodes, and edges between those nodes.  The graph, nodes,
       and edges can all have attributes specified,

       Graph::Reader::XML is a subclass of Graph::Reader, which defines the generic interface for
       Graph reader classes.

METHODS

   new()
       Constructor - generate a new reader instance.

         $reader = Graph::Reader::XML->new();

       This doesn't take any arguments.

   read_graph()
       Read a graph from a file:

         $graph = $reader->read_graph( $file );

       The $file argument can be either a filename or a filehandle of a previously opened file.

KNOWN BUGS

       Attribute values must be scalar. If they're not, well, you're on your own.

SEE ALSO

       Graph::Reader
           The base class for Graph::Reader::XML.

       Graph::Writer::XML
           Used to serialise a Graph instance as XML.

       Graph
           Jarkko Hietaniemi's classes for representing directed graphs.

AUTHOR

       Neil Bowers <neil@bowers.com>

COPYRIGHT

       Copyright (c) 2001-2012, Neil Bowers. All rights reserved.  Copyright (c) 2001, Canon
       Research Centre Europe. All rights reserved.

       This module is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.