Experimental parser: fix up action_type display

tools/lexer_generator/automaton.py

 # Copyright 2013 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 119 matching lines @@
     def escape(v):
       v = str(v)
       v = v.replace('\r', '\\\\r').replace('\t', '\\\\t').replace('\n', '\\\\n')
       v = v.replace('\\', '\\\\').replace('\"', '\\\"')
       return v
 
     def f(node, (node_content, edge_content)):
       if node.action():
         action = node.action()
         if action.type() == 'code':
-          # assert action.data()
           action_text = action.data()
+        elif action.type() == 'push_token':
+          action_text = "token(" + action.data() + ")"
         else:
           action_text = action.type()
         action_text = escape(action_text)
         node_content.append('  S_l%s[shape = box, label="%s"];' %
                             (node.node_number(), action_text))
         node_content.append('  S_%s -> S_l%s [arrowhead = none];' %
                             (node.node_number(), node.node_number()))
       for key, state in node.key_state_iter():
         if key == TransitionKey.epsilon():
           key = "ε"
@@ skipping 21 matching lines @@
   node [shape = doublecircle, style=unfilled]; %s
   node [shape = circle];
 %s
 %s
 }
     ''' % (start_shape,
            start_number,
            " ".join(terminals),
            "\n".join(edge_content),
            "\n".join(node_content))