For running REx, an input file is required and command line options can be specified. Select input file, enter command line options, and click "Generate" to run REx. Click "configure" for command line configuration.
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Command line client
Use REx.java instead of this form for invoking REx from a command shell.
Fragments of REx source code, that are contained in generated parsers, are supplied under the Apache 2.0 license. See LICENSE.txt.