20050919. DAC. This is the PixelMed Publishing pure Java UCUM toolkit. All the class and supporting files are included in a single jar file, pixelmed_ucum.jar. Installation. The following additional jar files from other freely available packages are required: antlr-2.7.5.jar ANTLR, ANother Tool for Language Recognition, which provides a framework lexers, parsers and tree rewriting from grammatical descriptions. The recommended version is 2.7.5. Prior versions likely will not work. See "http://www.ANTLR.org/". Usage. See "file:docs/javadoc/index.html".