make controllerinformer interface private;

use named regexp groups

pkg/util/util.go

@@ -10,6 +10,8 @@ import (
 	"github.com/motomux/pretty"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 
+	"regexp"
+
 	"github.com/zalando-incubator/postgres-operator/pkg/spec"
 )
 
@@ -71,3 +73,29 @@ OUTER:
 	}
 	return result, len(result) == 0
 }
+
+func FindNamedStringSubmatch(r *regexp.Regexp, s string) map[string]string {
+	matches := r.FindStringSubmatch(s)
+	grNames := r.SubexpNames()
+
+	if matches == nil {
+		return nil
+	}
+
+	groupMatches := 0
+	res := make(map[string]string, len(grNames))
+	for i, n := range grNames {
+		if n == "" {
+			continue
+		}
+
+		res[n] = matches[i]
+		groupMatches++
+	}
+
+	if groupMatches == 0 {
+		return nil
+	}
+
+	return res
+}