<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd"> <pkgmetadata> <maintainer type="project"> <email>sci-mathematics@gentoo.org</email> <name>Gentoo Mathematics Project</name> </maintainer> <longdescription lang="en"> nauty is a program for computing automorphism groups of graphs and digraphs. It can also produce a canonical labelling. nauty is written in a portable subset of C, and runs on a considerable number of different systems. </longdescription> </pkgmetadata>