Experimental parser: KeyEncoding class added

tools/lexer_generator/rule_parser_test.py

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 import unittest
+from transition_keys import KeyEncoding
 from rule_parser import RuleParserState
 from regex_parser import RegexParser
 
 class RuleParserTestCase(unittest.TestCase):
 
    def setUp(self):
-     self.state = RuleParserState()
+     self.state = RuleParserState(KeyEncoding.get('latin1'))
 
    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}|>
@@ skipping 43 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 }'))