code: private ScriptEngine getScriptEngine(String value) {
          String engineName = value.substring(0, value.indexOf(":"));
          if (engines.containsKey(engineName)) {
              return engines.get(engineName);
          } else {
              ScriptEngine engine = manager.getEngineByName(engineName);
              if (engine != null) {
                  engines.put(engineName, engine);
              } else {
                  log.warning(String.format("Could not find script engine by name '%s'", engineName));
              }
              return engine;
          }
      }
docs: Parses table cell to get script engine
  
  @param value the table cell
  @return scriptEngine