restructured viewmodels, better serialization

providers/xmlprovider/xmlcommon.go

@@ -0,0 +1,55 @@
+package xmlprovider
+
+import "encoding/xml"
+
+type KGPZDate struct {
+	XMLName   xml.Name `xml:"datum"`
+	When      string   `xml:"when,attr"`
+	NotBefore string   `xml:"notBefore,attr"`
+	NotAfter  string   `xml:"notAfter,attr"`
+	From      string   `xml:"from,attr"`
+	To        string   `xml:"to,attr"`
+	Value
+}
+
+type URL struct {
+	XMLName xml.Name `xml:"url"`
+	Address string   `xml:"address,attr"`
+	Value
+}
+
+type AnnotationNote struct {
+	Annotations []Annotation `xml:"anmerkung"`
+	Notes       []Note       `xml:"vermerk"`
+}
+
+type Annotation struct {
+	XMLName xml.Name `xml:"anmerkung"`
+	Value
+	Inner
+}
+
+type Note struct {
+	XMLName xml.Name `xml:"vermerk"`
+	Value
+	Inner
+}
+
+type Identifier struct {
+	ID string `xml:"id,attr"`
+}
+
+type Reference struct {
+	Ref      string `xml:"ref,attr"`
+	Category string `xml:"kat,attr"`
+	Unsicher bool   `xml:"unsicher,attr"`
+	Value
+}
+
+type Value struct {
+	Chardata string `xml:",chardata"`
+}
+
+type Inner struct {
+	InnerXML string `xml:",innerxml"`
+}