The original version of this script was by TAKAHASHI Masayoshi <maki@inac.co.jp> and can be found at www.jin.gr.jp/~nahi/RWiki/?cmd=view;name=xmlconftest

One big thing I've changed is that this script does not read the XML files into a string. This way, we can follow external references to other files. If you slurp the XML into the string and feed NQXML the string, it has no way of knowing where the file resides and it can't follow the external reference.