Changes for stride in slices (x[a:b:c]) and ellipses (x[a,...,z])
diff --git a/Grammar/Grammar b/Grammar/Grammar
index 3d957a7..faca858 100644
--- a/Grammar/Grammar
+++ b/Grammar/Grammar
@@ -74,8 +74,10 @@
power: atom trailer* ('**' factor)*
atom: '(' [testlist] ')' | '[' [testlist] ']' | '{' [dictmaker] '}' | '`' testlist '`' | NAME | NUMBER | STRING+
lambdef: 'lambda' [varargslist] ':' test
-trailer: '(' [arglist] ')' | '[' subscript ']' | '.' NAME
-subscript: test (',' test)* [','] | [test] ':' [test]
+trailer: '(' [arglist] ')' | '[' subscriptlist ']' | '.' NAME
+subscriptlist: subscript (',' subscript)* [',']
+subscript: '.' '.' '.' | test | [test] ':' [test] [sliceop]
+sliceop: ':' [test]
exprlist: expr (',' expr)* [',']
testlist: test (',' test)* [',']
dictmaker: test ':' test (',' test ':' test)* [',']