Moving XMPP library to Fluux project

jid.go

@@ -0,0 +1,34 @@
+package xmpp // import "fluux.io/xmpp"
+
+import (
+	"errors"
+	"strings"
+)
+
+type Jid struct {
+	username string
+	domain   string
+	resource string
+}
+
+func NewJid(sjid string) (jid *Jid, err error) {
+	s1 := strings.Split(sjid, "@")
+	if len(s1) != 2 {
+		err = errors.New("invalid JID: " + sjid)
+		return
+	}
+	jid = new(Jid)
+	jid.username = s1[0]
+
+	s2 := strings.Split(s1[1], "/")
+	if len(s2) > 2 {
+		err = errors.New("invalid JID: " + sjid)
+		return
+	}
+	jid.domain = s2[0]
+	if len(s2) == 2 {
+		jid.resource = s2[1]
+	}
+
+	return
+}