diff --git a/sh/core/code.awk b/sh/core/code.awk
index 784d25f..f938f7a 100644
--- a/sh/core/code.awk
+++ b/sh/core/code.awk
@@ -64,16 +64,17 @@ function remove_first(string, target, tmp) {
 	return trim(tmp)
 }
 
-# TODO parent function
-
-function strip_function(string, tmp) {
-	split(string, tmp, "(")
+function strip_from(string, sep, tmp) {
+	split(string, tmp, sep)
 	return trim(tmp[1])
 }
 
+function strip_function(string, tmp) {
+	return strip_from(string, "(")
+}
+
 function strip_value(string, tmp) {
-	split(string, tmp, "=")
-	return trim(tmp[1])
+	return strip_from(string, "=")
 }
 
 function trim(string) {