First implementation of an atom feed

commonAttributes.go

@@ -0,0 +1,19 @@
+package atomfeed
+
+import "fmt"
+
+type CommonAttributes struct {
+	Base                URI                   `xml:"base,attr,omitempty"`
+	Lang                LanguageTag           `xml:"lang,attr,omitempty"`
+	UndefinedAttributes []*ExtensionAttribute `xml:",any"`
+}
+
+func (c *CommonAttributes) Check() error {
+	for i, e := range c.UndefinedAttributes {
+		if err := e.Check(); err != nil {
+			return fmt.Errorf("extension attribute %v of common attributes: %v", i, err)
+		}
+	}
+
+	return nil
+}