Module:Dice: Difference between revisions

Module:Dice (view source)

198 bytes added , 16:57, 31 July 2019

add error checking

1,043

edits

@@ Line 80: / Line 80: @@
 function Dice.fromRangeString(rangeString)
      local minimum, maximum = rangeString:gsub('%s', ''):match'^(%d+)-(%d+)$'
-     return newDice{
-        {
+     if minimum ~= nil and maximum ~= nil then
-            quantity = 1,
+        return newDice{
-            size = maximum - minimum + 1,
+            {
-        },
+                quantity = 1,
-        {
+                size = maximum - minimum + 1,
-            quantity = minimum - 1,
+            },
-            size = 1,
+            {
-         },
+                quantity = minimum - 1,
-     }
+                size = 1,
+            },
+         }
+     else
+        error("I couldn't make sense of this as a range string: "
+            .. rangeString)
+    end
 end