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authorBen Murdoch <benm@google.com>2011-05-13 16:23:25 +0100
committerBen Murdoch <benm@google.com>2011-05-16 11:35:02 +0100
commit65f03d4f644ce73618e5f4f50dd694b26f55ae12 (patch)
treef478babb801e720de7bfaee23443ffe029f58731 /Source/WebKit/chromium/public/WebCString.h
parent47de4a2fb7262c7ebdb9cd133ad2c54c187454d0 (diff)
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Merge WebKit at r75993: Initial merge by git.
Change-Id: I602bbdc3974787a3b0450456a30a7868286921c3
Diffstat (limited to 'Source/WebKit/chromium/public/WebCString.h')
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diff --git a/Source/WebKit/chromium/public/WebCString.h b/Source/WebKit/chromium/public/WebCString.h
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+/*
+ * Copyright (C) 2009 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 WebCString_h
+#define WebCString_h
+
+#include "WebCommon.h"
+
+#if WEBKIT_IMPLEMENTATION
+#include <wtf/Forward.h>
+#else
+#include <string>
+#endif
+
+namespace WTF {
+class CString;
+}
+
+namespace WebKit {
+
+class WebCStringPrivate;
+class WebString;
+
+// A single-byte string container with unspecified encoding. It is
+// inexpensive to copy a WebCString object.
+//
+// WARNING: It is not safe to pass a WebCString across threads!!!
+//
+class WebCString {
+public:
+ ~WebCString() { reset(); }
+
+ WebCString() : m_private(0) { }
+
+ WebCString(const char* data, size_t len) : m_private(0)
+ {
+ assign(data, len);
+ }
+
+ WebCString(const WebCString& s) : m_private(0) { assign(s); }
+
+ WebCString& operator=(const WebCString& s)
+ {
+ assign(s);
+ return *this;
+ }
+
+ // Returns 0 if both strings are equals, a value greater than zero if the
+ // first character that does not match has a greater value in this string
+ // than in |other|, or a value less than zero to indicate the opposite.
+ WEBKIT_API int compare(const WebCString& other) const;
+
+ WEBKIT_API void reset();
+ WEBKIT_API void assign(const WebCString&);
+ WEBKIT_API void assign(const char* data, size_t len);
+
+ WEBKIT_API size_t length() const;
+ WEBKIT_API const char* data() const;
+
+ bool isEmpty() const { return !length(); }
+ bool isNull() const { return !m_private; }
+
+ WEBKIT_API WebString utf16() const;
+
+ WEBKIT_API static WebCString fromUTF16(const WebUChar* data, size_t length);
+ WEBKIT_API static WebCString fromUTF16(const WebUChar* data);
+
+#if WEBKIT_IMPLEMENTATION
+ WebCString(const WTF::CString&);
+ WebCString& operator=(const WTF::CString&);
+ operator WTF::CString() const;
+#else
+ WebCString(const std::string& s) : m_private(0)
+ {
+ assign(s.data(), s.length());
+ }
+
+ WebCString& operator=(const std::string& s)
+ {
+ assign(s.data(), s.length());
+ return *this;
+ }
+
+ operator std::string() const
+ {
+ size_t len = length();
+ return len ? std::string(data(), len) : std::string();
+ }
+
+ template <class UTF16String>
+ static WebCString fromUTF16(const UTF16String& s)
+ {
+ return fromUTF16(s.data(), s.length());
+ }
+#endif
+
+private:
+ void assign(WebCStringPrivate*);
+ WebCStringPrivate* m_private;
+};
+
+inline bool operator<(const WebCString& a, const WebCString& b)
+{
+ return a.compare(b) < 0;
+}
+
+} // namespace WebKit
+
+#endif