Tap source = getPlatform().getDelimitedFile( new Fields( "num", "char" ), " ", inputFileLhs );
Pipe pipe = new Pipe( "test" );
Filter filter = new Not( new Xor( new Fields( "num" ), new RegexFilter( "1", true, true ), new Fields( "char" ), new RegexFilter( "a", true, true ) ) );
// compounding the filter for the Fields.ALL case.
pipe = new Each( pipe, filter );
pipe = new Each( pipe, new Fields( "num", "char" ), filter );