diff --git a/source/net/sourceforge/filebot/format/ExpressionFormat.lib.groovy b/source/net/sourceforge/filebot/format/ExpressionFormat.lib.groovy
index a73e2614..940c6e81 100644
--- a/source/net/sourceforge/filebot/format/ExpressionFormat.lib.groovy
+++ b/source/net/sourceforge/filebot/format/ExpressionFormat.lib.groovy
@@ -5,6 +5,7 @@ import java.util.regex.Pattern
 
 // simplified switch/case pattern matching
 Object.metaClass.match = { Map cases -> def val = delegate; cases.findResult { switch(val) { case it.key: return it.value} } }
+def csv(path, delim = ';', keyIndex = 0, valueIndex = 1) { def f = path as File; def values = [:]; f.splitEachLine(delim) { values.put(it[keyIndex], it[valueIndex]) }; return values }
 def c(c) { try { c.call() } catch (Throwable e) { null } }