From 1e4cc8ea75f3fd79ad3b4bfa4fcb9089aa15e15c Mon Sep 17 00:00:00 2001 From: "Steven R. Brandt" Date: Mon, 6 Feb 2012 15:48:55 -0600 Subject: allow integer values as indices --- Auxiliary/Grammars/kranc2.peg | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Auxiliary/Grammars') diff --git a/Auxiliary/Grammars/kranc2.peg b/Auxiliary/Grammars/kranc2.peg index e078f7e..a98aaf7 100644 --- a/Auxiliary/Grammars/kranc2.peg +++ b/Auxiliary/Grammars/kranc2.peg @@ -4,7 +4,7 @@ end = ([ \t]+|#.*)*\r*\n name = [A-Za-z][A-Za-z0-9]* uname = [A-Za-z][A-Za-z0-9_]* indices = ([_^]({index_symbol}|\({index_expr}(,{index_expr})*\))+)* -index_symbol = [a-zA-Z]'* +index_symbol = [a-zA-Z]'*|[0-9] index_expr = {index_symbol}([+-]{int}|) tensor = {name}{indices} dtensor = D[a-z0-9]*{indices}? {tensor} -- cgit v1.2.3