diff --git a/processor/processor.go b/processor/processor.go
index 0261f51..0f770a1 100644
--- a/processor/processor.go
+++ b/processor/processor.go
@@ -179,6 +179,7 @@ function ceil(x) return math.ceil(x) end
 function upper(s) return string.upper(s) end
 function lower(s) return string.lower(s) end
 function format(s, ...) return string.format(s, ...) end
+function trim(s) return string.gsub(s, "^%s*(.-)%s*$", "%1") end
 
 -- String split helper
 function strsplit(inputstr, sep)