Graph::Reader::XML - class for reading a Graph instance from XML |
Graph::Reader::XML - class for reading a Graph instance from XML
use Graph::Reader::XML; use Graph; $reader = Graph::Reader::XML->new(); $graph = $reader->read_graph('mygraph.xml');
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.
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.
Attribute values must be scalar. If they're not, well, you're on your own.
The base class for Graph::Reader::XML.
Used to serialise a Graph instance as XML.
Jarkko Hietaniemi's classes for representing directed graphs.
Neil Bowers <neil@bowers.com>
Copyright (c) 2001-2005, 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.
Graph::Reader::XML - class for reading a Graph instance from XML |