1 files changed, 43 insertions, 0 deletions
diff --git a/src/components/util/namespace.rs b/src/components/util/namespace.rs
new file mode 100644
index 00000000000..354f95f69b2
--- /dev/null
+++ b/src/components/util/namespace.rs
@@ -0,0 +1,43 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#[deriving(Eq, Clone)]
+pub enum Namespace {
+    Null,
+    HTML,
+    XML,
+    XMLNS,
+    XLink,
+    SVG,
+    MathML,
+    Other(~str)
+}
+
+impl Namespace {
+    /// Empty string for "no namespace"
+    pub fn from_str(url: &str) -> Namespace {
+        match url {
+            "http://www.w3.org/1999/xhtml" => HTML,
+            "http://www.w3.org/XML/1998/namespace" => XML,
+            "http://www.w3.org/2000/xmlns/" => XMLNS,
+            "http://www.w3.org/1999/xlink" => XLink,
+            "http://www.w3.org/2000/svg" => SVG,
+            "http://www.w3.org/1998/Math/MathML" => MathML,
+            "" => Null,
+            ns => Other(ns.to_owned())
+        }
+    }
+    pub fn to_str<'a>(&'a self) -> Option<&'a str> {
+        match *self {
+            Null => None,
+            HTML => Some("http://www.w3.org/1999/xhtml"),
+            XML => Some("http://www.w3.org/XML/1998/namespace"),
+            XMLNS => Some("http://www.w3.org/2000/xmlns/"),
+            XLink => Some("http://www.w3.org/1999/xlink"),
+            SVG => Some("http://www.w3.org/2000/svg"),
+            MathML => Some("http://www.w3.org/1998/Math/MathML"),
+            Other(ref x) => Some(x.as_slice())
+        }
+    }
+}