kranc2.peg: Add derivative name to parse tree

ianhinder · Feb 7, 2012 · 3cc6aee · 3cc6aee
1 parent 79d6ce9
commit 3cc6aee
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/Auxiliary/Grammars/kranc2.peg b/Auxiliary/Grammars/kranc2.peg
@@ -9,7 +9,8 @@ indices = (\_{lower_index}+|\^{upper_index}+)*
 index_symbol = [a-zA-Z]'*|[0-9]
 index_expr = {index_symbol}([+-]{int}|)
 tensor = {name}{indices}
-dtensor = D[a-z0-9]*{indices}? {tensor}
+dname = D[a-z0-9]*
+dtensor = {dname}{indices}? {tensor}
 number = -?[0-9]+(\.[0-9]*|)([eEdD][+-]?[0-9]+|)
 func = {name} \( ({expr}( , {expr})*|) \)
 value = {func}|{dtensor}|-?{tensor}|{number}|-?\( {expr} \)