Add ApplyTemplate and use NoToken less

byg/src/Evaluation/Function.hs

@@ -6,11 +6,17 @@ import Types (Function(..), Value(..))
 
 evalFunction :: Function -> Value -> Value
 evalFunction f x = case (f, x) of
+  (JoinPaths, Tuple (String _, String _)) ->
+    String undefined
+
   (IsImageFilename, String _) ->
     Bool undefined
 
   (ConvertedImageFilename, String _) ->
     String undefined
 
+  (ApplyTemplate, Tuple (Template _, String _)) ->
+    String undefined
+
   _ ->
     error "unexpected combination of function and argument type"

byg/src/Evaluation/FunctionIO.hs

@@ -21,8 +21,8 @@ evalFunctionIO f x = case (f, x) of
   (MakeDir, String _) ->
     pure $ Empty
 
-  (RunPandoc, Tuple (String _, String _)) ->
-    pure $ Empty
+  (RunPandoc, String _) ->
+    pure $ String undefined
 
   _ ->
     error "unexpected combination of function and argument type"