Start splitting off 3.4 grammar from rest

uncompyle6/parser.py

@@ -637,10 +637,11 @@ def get_python_parser(version, debug_parser, compile_mode='exec'):
             else:
                 p = parse3.Python33ParserSingle(debug_parser)
         elif version == 3.4:
+            import uncompyle6.parsers.parse34 as parse34
             if compile_mode == 'exec':
-                p = parse3.Python34Parser(debug_parser)
+                p = parse34.Python34Parser(debug_parser)
             else:
-                p = parse3.Python34ParserSingle(debug_parser)
+                p = parse34.Python34ParserSingle(debug_parser)
         elif version >= 3.5:
             if compile_mode == 'exec':
                 p = parse3.Python35onParser(debug_parser)

uncompyle6/parsers/parse3.py

@@ -625,10 +625,6 @@ class Python32ParserSingle(Python32Parser, PythonParserSingle):
 class Python33ParserSingle(Python33Parser, PythonParserSingle):
     pass
 
-class Python34ParserSingle(Python34Parser, PythonParserSingle):
-    pass
-
-
 class Python35onParserSingle(Python35onParser, PythonParserSingle):
     pass
 
@@ -641,8 +637,6 @@ def info(args):
         arg = args[0]
         if arg == '3.5':
             p = Python35onParser()
-        elif arg == '3.4':
-            p = Python34Parser()
         elif arg == '3.3':
             p = Python33Parser()
         elif arg == '3.2':

uncompyle6/parsers/parse34.py

@@ -0,0 +1,35 @@
+#  Copyright (c) 2016 Rocky Bernstein
+"""
+spark grammar differences over Python3 for Python 3.4.2.
+"""
+
+from uncompyle6.parser import PythonParserSingle
+from spark_parser import DEFAULT_DEBUG as PARSER_DEFAULT_DEBUG
+from uncompyle6.parsers.parse3 import Python3Parser
+
+class Python34Parser(Python3Parser):
+
+    def __init__(self, debug_parser=PARSER_DEFAULT_DEBUG):
+        super(Python34Parser, self).__init__(debug_parser)
+        self.customized = {}
+
+    def p_misc34(self, args):
+        """
+        # Python 3.5+ optimizes the trailing two JUMPS away
+        for_block ::= l_stmts_opt JUMP_ABSOLUTE
+        """
+
+class Python34ParserSingle(Python34Parser, PythonParserSingle):
+    pass
+
+
+def info(args):
+    # Check grammar
+    # Should also add a way to dump grammar
+    p = Python34Parser()
+    p.checkGrammar()
+
+
+if __name__ == '__main__':
+    import sys
+    info(sys.argv)