Merge pull request #385 from ibm2431/set

Add set constructor

scripts/globals/common.lua

@@ -32,6 +32,18 @@ function printf(s,...)
     print(s:format(...))
 end
 
+-----------------------------------
+--  set()
+--  Returns a set that can be checked against
+-----------------------------------
+function set(list)
+    local set = {}
+    for _, item in pairs(list) do
+        set[item] = true
+    end
+    return set
+end
+
 -----------------------------------
 --  getMidnight
 --  Returns midnight for the current day in epoch format