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diff --git a/Source/JavaScriptCore/wtf/url/src/URLCharacterTypes.h b/Source/JavaScriptCore/wtf/url/src/URLCharacterTypes.h
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+++ b/Source/JavaScriptCore/wtf/url/src/URLCharacterTypes.h
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+// Copyright 2010, Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef URLCharacterTypes_h
+#define URLCharacterTypes_h
+
+namespace WTF {
+
+class URLCharacterTypes {
+public:
+    static inline bool isQueryChar(unsigned char c) { return isCharOfType(c, QueryCharacter); }
+    static inline bool isIPv4Char(unsigned char c) { return isCharOfType(c, IPv4Character); }
+    static inline bool isHexChar(unsigned char c) { return isCharOfType(c, HexCharacter); }
+
+private:
+    enum CharTypes {
+        InvalidCharacter = 0,
+        QueryCharacter = 1 << 0,
+        UserInfoCharacter = 1 << 1,
+        IPv4Character = 1 << 2,
+        HexCharacter = 1 << 3,
+        DecimalCharacter = 1 << 4,
+        OctalCharacter = 1 << 5,
+    };
+
+    static const unsigned char characterTypeTable[0x100];
+
+    static inline bool isCharOfType(unsigned char c, CharTypes type)
+    {
+        return !!(characterTypeTable[c] & type);
+    }
+};
+
+}
+
+#endif