This directory contains the ANTLR definition for plastics language. This is a domain specific language in which policy interventions are implemented. These scripts can be executed in browser as described at project root or outside the browser with Node as described in js_standalone. The interpreter is implemented in js/visitors_base.js_template.
Note that this describes the language grammar. For the actual interventions code see the pt directory. This directory also includes information on how to write code in plastics language.