From 40736c5763bf61337c8c14e16d8587db021a87d4 Mon Sep 17 00:00:00 2001
From: Simon Hausmann <simon.hausmann@nokia.com>
Date: Fri, 6 Jan 2012 14:44:00 +0100
Subject: Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4
 (http://svn.webkit.org/repository/webkit/trunk@104285)

---
 Source/JavaScriptCore/API/JSStringRef.cpp | 112 ++++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 Source/JavaScriptCore/API/JSStringRef.cpp

(limited to 'Source/JavaScriptCore/API/JSStringRef.cpp')

diff --git a/Source/JavaScriptCore/API/JSStringRef.cpp b/Source/JavaScriptCore/API/JSStringRef.cpp
new file mode 100644
index 000000000..ea31da66b
--- /dev/null
+++ b/Source/JavaScriptCore/API/JSStringRef.cpp
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2006, 2007 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 COMPUTER, INC. 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. 
+ */
+
+#include "config.h"
+#include "JSStringRef.h"
+
+#include "InitializeThreading.h"
+#include "OpaqueJSString.h"
+#include <wtf/unicode/UTF8.h>
+
+using namespace JSC;
+using namespace WTF::Unicode;
+
+JSStringRef JSStringCreateWithCharacters(const JSChar* chars, size_t numChars)
+{
+    initializeThreading();
+    return OpaqueJSString::create(chars, numChars).leakRef();
+}
+
+JSStringRef JSStringCreateWithUTF8CString(const char* string)
+{
+    initializeThreading();
+    if (string) {
+        size_t length = strlen(string);
+        Vector<UChar, 1024> buffer(length);
+        UChar* p = buffer.data();
+        if (conversionOK == convertUTF8ToUTF16(&string, string + length, &p, p + length))
+            return OpaqueJSString::create(buffer.data(), p - buffer.data()).leakRef();
+    }
+
+    // Null string.
+    return OpaqueJSString::create().leakRef();
+}
+
+JSStringRef JSStringRetain(JSStringRef string)
+{
+    string->ref();
+    return string;
+}
+
+void JSStringRelease(JSStringRef string)
+{
+    string->deref();
+}
+
+size_t JSStringGetLength(JSStringRef string)
+{
+    return string->length();
+}
+
+const JSChar* JSStringGetCharactersPtr(JSStringRef string)
+{
+    return string->characters();
+}
+
+size_t JSStringGetMaximumUTF8CStringSize(JSStringRef string)
+{
+    // Any UTF8 character > 3 bytes encodes as a UTF16 surrogate pair.
+    return string->length() * 3 + 1; // + 1 for terminating '\0'
+}
+
+size_t JSStringGetUTF8CString(JSStringRef string, char* buffer, size_t bufferSize)
+{
+    if (!bufferSize)
+        return 0;
+
+    char* p = buffer;
+    const UChar* d = string->characters();
+    ConversionResult result = convertUTF16ToUTF8(&d, d + string->length(), &p, p + bufferSize - 1, true);
+    *p++ = '\0';
+    if (result != conversionOK && result != targetExhausted)
+        return 0;
+
+    return p - buffer;
+}
+
+bool JSStringIsEqual(JSStringRef a, JSStringRef b)
+{
+    unsigned len = a->length();
+    return len == b->length() && 0 == memcmp(a->characters(), b->characters(), len * sizeof(UChar));
+}
+
+bool JSStringIsEqualToUTF8CString(JSStringRef a, const char* b)
+{
+    JSStringRef bBuf = JSStringCreateWithUTF8CString(b);
+    bool result = JSStringIsEqual(a, bBuf);
+    JSStringRelease(bBuf);
+    
+    return result;
+}
-- 
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