diff --git a/processor/processor.go b/processor/processor.go
index a2fdb56..86185c0 100644
--- a/processor/processor.go
+++ b/processor/processor.go
@@ -314,6 +314,18 @@ function upper(s) return string.upper(s) end
 function lower(s) return string.lower(s) end
 function format(s, ...) return string.format(s, ...) end
 
+-- String split helper
+function strsplit(inputstr, sep)
+  if sep == nil then
+    sep = "%s"
+  end
+  local t = {}
+  for str in string.gmatch(inputstr, "([^"..sep.."]+)") do
+    table.insert(t, str)
+  end
+  return t
+end
+
 -- String to number conversion helper
 function num(str)
     return tonumber(str) or 0