Graph::readwrite is a collection of perl classes for reading and writing directed graphs in a variety of file formats. the graphs are represented in perl using jarkko hietaniemi's graph classes.

there are two base classes, graph::reader which is the base class for classes which read a graph file and create an instance of the graph class, and graph::writer which is the base class for classes which take an instance of the graph class and write it out in a specific file format.

supported formats: xml, dot, vcg, davinci, htk