Grammar hell

uncompyle6/parser.py

@@ -474,6 +474,7 @@ class PythonParser(GenericASTBuilder):
         _mklambda ::= mklambda
 
         expr ::= conditional
+        conditional ::= expr jmp_false expr JUMP_FORWARD expr COME_FROM
 
         ret_expr ::= expr
         ret_expr ::= ret_and

uncompyle6/parsers/parse21.py

@@ -13,15 +13,16 @@ class Python21Parser(Python22Parser):
 
     def p_forstmt21(self, args):
         """
-        _for      ::= LOAD_CONST FOR_LOOP
-        forstmt   ::= SETUP_LOOP expr _for designator
-                      return_stmts
-                      POP_BLOCK COME_FROM
-        forstmt   ::= SETUP_LOOP expr _for designator
-                      l_stmts_opt _jump_back
-                      POP_BLOCK COME_FROM
+        _for        ::= LOAD_CONST FOR_LOOP
+        forstmt     ::= SETUP_LOOP expr _for designator
+                        return_stmts
+                        POP_BLOCK COME_FROM
+        forstmt     ::= SETUP_LOOP expr _for designator
+                        l_stmts_opt _jump_back
+                        POP_BLOCK COME_FROM
 
-        conditional   ::= expr jmp_false expr JUMP_ABSOLUTE expr
+        expr        ::= conditional
+        conditional ::= expr jmp_false expr JUMP_ABSOLUTE expr
         """
 
     def p_import21(self, args):

uncompyle6/parsers/parse26.py

@@ -93,7 +93,6 @@ class Python26Parser(Python2Parser):
         bp_come_from    ::= POP_BLOCK COME_FROM
         jb_bp_come_from ::= JUMP_BACK bp_come_from
 
-        _ifstmts_jump ::= c_stmts_opt jf_pop COME_FROM
         _ifstmts_jump ::= c_stmts_opt JUMP_FORWARD COME_FROM POP_TOP
         _ifstmts_jump ::= c_stmts_opt JUMP_FORWARD come_froms POP_TOP COME_FROM
 
@@ -182,6 +181,7 @@ class Python26Parser(Python2Parser):
         jmp_true_then  ::= JUMP_IF_TRUE THEN POP_TOP
 
         while1stmt ::= SETUP_LOOP return_stmts COME_FROM
+        for_block  ::= return_stmts _come_from
         """
 
     def p_comp26(self, args):

uncompyle6/parsers/parse27.py

@@ -99,6 +99,7 @@ class Python27Parser(Python2Parser):
         # assert condition, expr
         assert2    ::= assert_expr jmp_true LOAD_ASSERT expr CALL_FUNCTION_1 RAISE_VARARGS_1
 
+        for_block  ::= return_stmts _come_from
         del_stmt   ::= expr expr DELETE_SLICE+1
 
         withstmt   ::= expr SETUP_WITH POP_TOP suite_stmts_opt
@@ -118,6 +119,9 @@ class Python27Parser(Python2Parser):
                               else_suite COME_FROM
 
         ifstmt            ::= testexpr return_if_stmts COME_FROM
+        ifelsestmt        ::= testexpr c_stmts_opt JUMP_FORWARD else_suite COME_FROM
+        ifelsestmtc       ::= testexpr c_stmts_opt JUMP_ABSOLUTE else_suitec
+        ifelsestmtl       ::= testexpr c_stmts_opt JUMP_BACK else_suitel
 
         # Common with 2.6
         return_if_lambda   ::= RETURN_END_IF_LAMBDA COME_FROM

uncompyle6/parsers/parse32.py

@@ -10,7 +10,8 @@ from uncompyle6.parsers.parse3 import Python3Parser
 class Python32Parser(Python3Parser):
     def p_32to35(self, args):
         """
-        conditional      ::= expr jmp_false expr jump_forward_else expr COME_FROM
+        expr        ::= conditional
+        conditional ::= expr jmp_false expr jump_forward_else expr COME_FROM
 
         # compare_chained2 is used in a "chained_compare": x <= y <= z
         # used exclusively in compare_chained