KrancScript.m: Add comments

ianhinder · Feb 21, 2014 · 35ccdb3 · 35ccdb3
1 parent 5296fd9
commit 35ccdb3
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/Tools/CodeGen/KrancScript.m b/Tools/CodeGen/KrancScript.m
@@ -216,6 +216,8 @@
 
     ToExpression[dname][Pattern[Evaluate[ind],_]] -> (rhsEval/.{spacing[1]->spacing[ind],shift[1]->shift[ind]})];
 
+(* Differencing operators *)
+
 process["tensor"["name"[k_],
                  "indices"[a___,
                            pos_["index_expr"[sym:"index_symbol"[i_],
@@ -225,6 +227,8 @@
    process["tensor"["name"[k],
                     "indices"[a,pos[sym],b]]]);
 
+(* TODO: support multi-dimensional grid function accesses, i.e. v_(i+1,j) *)
+
 process["tensor"["name"[k_],
                  "indices"[a___,
                            pos_["index_expr"[sym:"index_symbol"[___]]],