brewkit.rb changes ENV destructively, so lets not do that everytime a formula
is required. Now it's possible for other tools to require a formula
description without worrying about side-effects.
Raptor is a free software / Open Source C library that provides a set of parsers
and serializers that generate Resource Description Framework (RDF) triples by parsing
syntaxes or serialize the triples into a syntax. The supported parsing syntaxes are
RDF/XML, N-Triples, TRiG, Turtle, RSS tag soup including all versions of RSS, Atom 1.0
and 0.3, GRDDL and microformats for HTML, XHTML and XML and RDFa. The serializing
syntaxes are RDF/XML (regular, and abbreviated), Atom 1.0, GraphViz, JSON, N-Triples,
RSS 1.0 and XMP.