Experimental parser: some cleanup and assertions for rule_parser

tools/lexer_generator/rule_parser_test.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 26 matching lines @@
    def parse(self, string):
     return self.state.parse(string)
 
    def test_basic(self):
      self.parse('''
 alias = /regex/;
 <cond1> /regex/ <<cond2>>
 <cond1> alias <<cond2>>
 <cond2> /regex/ {body}
 <cond2> alias {body}
-<cond3> /regex/ {body} <<cond4>>
-<cond3> alias {body} <<cond4>>''')
+<cond3> /regex/ {body} <<cond1>>
+<cond3> alias {body} <<cond1>>''')
 
      self.assertTrue(len(self.state.aliases), 1)
      self.assertTrue('alias' in self.state.aliases)
      self.assertEquals(self.state.aliases['alias'], RegexParser.parse('regex'))
 
      self.assertTrue(len(self.state.rules), 2)
      self.assertTrue('cond1' in self.state.rules)
      self.assertEquals(len(self.state.rules['cond1']), 2)
      # self.assertTrue('regex2' in self.state.rules['cond1'])
      # self.assertEquals(self.state.rules['cond1']['regex2'],
@@ skipping 30 matching lines @@
      self.parse('<cond> "regex" { if (foo) { bar } }')
      # self.assertEquals(
      #     self.parse['cond']['regex'],
      #     ('body', 'if (foo) { bar }'))
 
    def test_regexp_with_count(self):
      self.parse('<cond> /regex{1,3}/ { if (foo) { bar } }')
      # self.assertEquals(
      #     self.parse['cond']['regex{1,3}'],
      #     ('body', 'if (foo) { bar }'))