The Ptolemy II Expression Language is documented in Chapter 3, "Expressions" (Ptolemy Website) Local HTML Version).

The expression language uses JavaCC, which is available from http://javacc.dev.java.net. You need only install JavaCC is you plan on extending the syntax of the expression language by modifying the .jjt files. $PTII/configure looks for JavaCC in $PTII/vendors/sun/javacc-3.2, so either install JavaCC in that location or use the --with-javacc= flag and then rerun configure.

@since Ptolemy II 1.0