1 files changed, 97 insertions, 0 deletions
diff --git a/WebCore/platform/text/StringBuilder.cpp b/WebCore/platform/text/StringBuilder.cpp
new file mode 100644
index 0000000..0e9555c
--- /dev/null
+++ b/WebCore/platform/text/StringBuilder.cpp
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2008 Apple 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:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  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.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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.
+ */
+ 
+#include "config.h"
+#include "StringBuilder.h"
+
+#include "StringBuffer.h"
+
+namespace WebCore {
+
+void StringBuilder::append(const String& string)
+{
+    if (string.isNull())
+        return;
+
+    if (m_totalLength == UINT_MAX)
+        m_totalLength = string.length();
+    else
+        m_totalLength += string.length();
+
+    if (!string.isEmpty())
+        m_strings.append(string);
+}
+
+void StringBuilder::append(UChar c)
+{
+    if (m_totalLength == UINT_MAX)
+        m_totalLength = 1;
+    else
+        m_totalLength += 1;
+
+    m_strings.append(String(&c, 1));
+}
+
+void StringBuilder::append(char c)
+{
+    if (m_totalLength == UINT_MAX)
+        m_totalLength = 1;
+    else
+        m_totalLength += 1;
+
+    m_strings.append(String(&c, 1));
+}
+
+String StringBuilder::toString() const
+{
+    if (isNull())
+        return String();
+
+    unsigned count = m_strings.size();
+
+    if (!count)
+        return String(StringImpl::empty());
+    if (count == 1)
+        return m_strings[0];
+
+    StringBuffer buffer(m_totalLength);
+
+    UChar* p = buffer.characters();
+    for (unsigned i = 0; i < count; ++i) {
+        StringImpl* string = m_strings[i].impl();
+        unsigned length = string->length(); 
+        memcpy(p, string->characters(), length * 2);
+        p += length;
+    }
+
+    ASSERT(p == m_totalLength + buffer.characters());
+
+    return String::adopt(buffer);
+}
+
+}