Added 'global' and new class syntax.
diff --git a/Grammar/Grammar b/Grammar/Grammar
index 6de1312..494ebf0 100644
--- a/Grammar/Grammar
+++ b/Grammar/Grammar
@@ -1,4 +1,8 @@
-# Grammar for Python, version 7
+# Grammar for Python, version 8
+
+# Changes since version 7:
+# New syntax to specify base classes (but old syntax retained for now)
+# 'global' statement (valid only in functions but not enforced here)
# Changes since version 6:
# Add logical operators '|', '^', '&' and '~'
@@ -52,7 +56,7 @@
stmt: simple_stmt | compound_stmt
simple_stmt: small_stmt (';' small_stmt)* [';'] NEWLINE
-small_stmt: expr_stmt | print_stmt | del_stmt | pass_stmt | flow_stmt | import_stmt
+small_stmt: expr_stmt | print_stmt | del_stmt | pass_stmt | flow_stmt | import_stmt | global_stmt
expr_stmt: (exprlist '=')* exprlist
# For assignments, additional restrictions enforced by the interpreter
print_stmt: 'print' (test ',')* [test]
@@ -64,6 +68,7 @@
return_stmt: 'return' [testlist]
raise_stmt: 'raise' test [',' test]
import_stmt: 'import' NAME (',' NAME)* | 'from' NAME 'import' ('*' | NAME (',' NAME)*)
+global_stmt: 'global' NAME (',' NAME)*
compound_stmt: if_stmt | while_stmt | for_stmt | try_stmt | funcdef | classdef
if_stmt: 'if' test ':' suite ('elif' test ':' suite)* ['else' ':' suite]
while_stmt: 'while' test ':' suite ['else' ':' suite]
@@ -91,6 +96,9 @@
testlist: test (',' test)* [',']
dictmaker: test ':' test (',' test ':' test)* [',']
-classdef: 'class' NAME parameters ['=' baselist] ':' suite
+# New class syntax should be:
+# classdef: class NAME ['(' testlist ')'] ':' suite
+# but merged with old syntax for compatibility it becomes:
+classdef: 'class' NAME ['(' testlist ')' |'(' ')' ['=' baselist]] ':' suite
baselist: atom arguments (',' atom arguments)*
-arguments: '(' [testlist] ')'
+arguments: '(' ')'