diff --git a/resources/install/scripts/resources/functions/split.lua b/resources/install/scripts/resources/functions/split.lua
new file mode 100644
index 0000000000..c46e0cad0b
--- /dev/null
+++ b/resources/install/scripts/resources/functions/split.lua
@@ -0,0 +1,27 @@
+function split(str, sep, plain)
+  local b, res = 1, {}
+  while b <= #str do
+    local e, e2 = string.find(str, sep, b, plain)
+    if e then
+      res[#res + 1] = string.sub(str, b, e-1)
+      b = e2 + 1
+    else
+      res[#res + 1] = string.sub(str, b)
+      break
+    end
+  end
+  return res
+end
+
+function split_first(str, sep, plain)
+  local e, e2 = string.find(str, sep, nil, plain)
+  if e then
+    return string.sub(str, 1, e - 1), string.sub(str, e2 + 1)
+  end
+  return str
+end
+
+local unpack = unpack or table.unpack
+
+function usplit(...) return unpack(split(...)) end
+