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.