diff options
Diffstat (limited to 'Auxiliary')
| -rw-r--r-- | Auxiliary/Grammars/kranc2.peg | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Auxiliary/Grammars/kranc2.peg b/Auxiliary/Grammars/kranc2.peg index fe6aab3..9111540 100644 --- a/Auxiliary/Grammars/kranc2.peg +++ b/Auxiliary/Grammars/kranc2.peg @@ -7,7 +7,8 @@ lower_index = ({index_symbol}|\({index_expr}(,{index_expr})*\)) upper_index = ({index_symbol}|\({index_expr}(,{index_expr})*\)) indices = (\_{lower_index}+|\^{upper_index}+)* index_symbol = [a-zA-Z]'*|[0-9] -index_expr = {index_symbol}([+-]{int}|) +index_op = [+-] +index_expr = {index_symbol}({index_op}{int}|) tensor = {name}{indices} dname = D[a-z0-9]* dtensor = {dname}{indices}? {tensor} # Can this "?" be removed? |