1 files changed, 37 insertions, 0 deletions
diff --git a/dom/xslt/base/txExpandedName.cpp b/dom/xslt/base/txExpandedName.cpp
new file mode 100644
index 0000000000..af11476056
--- /dev/null
+++ b/dom/xslt/base/txExpandedName.cpp
@@ -0,0 +1,37 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/. */
+
+#include "txExpandedName.h"
+#include "nsString.h"
+#include "nsReadableUtils.h"
+#include "txStringUtils.h"
+#include "txNamespaceMap.h"
+#include "txXMLUtils.h"
+
+nsresult txExpandedName::init(const nsAString& aQName,
+                              txNamespaceMap* aResolver, bool aUseDefault) {
+  const nsString& qName = PromiseFlatString(aQName);
+  const char16_t* colon;
+  bool valid = XMLUtils::isValidQName(qName, &colon);
+  if (!valid) {
+    return NS_ERROR_FAILURE;
+  }
+
+  if (colon) {
+    RefPtr<nsAtom> prefix = NS_Atomize(Substring(qName.get(), colon));
+    int32_t namespaceID = aResolver->lookupNamespace(prefix);
+    if (namespaceID == kNameSpaceID_Unknown) return NS_ERROR_FAILURE;
+    mNamespaceID = namespaceID;
+
+    const char16_t* end;
+    qName.EndReading(end);
+    mLocalName = NS_Atomize(Substring(colon + 1, end));
+  } else {
+    mNamespaceID =
+        aUseDefault ? aResolver->lookupNamespace(nullptr) : kNameSpaceID_None;
+    mLocalName = NS_Atomize(aQName);
+  }
+  return NS_OK;
+}