Index: third_party/WebKit/Source/core/dom/custom/CustomElement.cpp |
diff --git a/third_party/WebKit/Source/core/dom/custom/CustomElement.cpp b/third_party/WebKit/Source/core/dom/custom/CustomElement.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..90569898c64ffbe0506a70a3a883229adfe56866 |
--- /dev/null |
+++ b/third_party/WebKit/Source/core/dom/custom/CustomElement.cpp |
@@ -0,0 +1,31 @@ |
+// Copyright 2016 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "core/dom/custom/CustomElement.h" |
+ |
+#include "platform/text/Character.h" |
+ |
+namespace blink { |
+ |
+bool CustomElement::isPotentialCustomElementName(const AtomicString& name) |
+{ |
+ if (!name.length() || name[0] < 'a' || name[0] > 'z') |
+ return false; |
+ |
+ bool hasHyphens = false; |
+ for (size_t i = 1; i < name.length(); ) { |
+ UChar32 ch; |
+ if (name.is8Bit()) |
+ ch = name[i++]; |
+ else |
+ U16_NEXT(name.characters16(), i, name.length(), ch); |
+ if (ch == '-') |
+ hasHyphens = true; |
+ else if (!Character::isPotentialCustomElementNameChar(ch)) |
+ return false; |
+ } |
+ return hasHyphens; |
+} |
+ |
+} // namespace blink |