1 files changed, 149 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/wtf/unicode/icu/CollatorICU.cpp b/Source/JavaScriptCore/wtf/unicode/icu/CollatorICU.cpp
new file mode 100644
index 0000000..805b114
--- /dev/null
+++ b/Source/JavaScriptCore/wtf/unicode/icu/CollatorICU.cpp
@@ -0,0 +1,149 @@
+/*
+ * 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 "Collator.h"
+
+#if USE(ICU_UNICODE) && !UCONFIG_NO_COLLATION
+
+#include "Assertions.h"
+#include "Threading.h"
+#include <unicode/ucol.h>
+#include <string.h>
+
+#if OS(DARWIN)
+#include "RetainPtr.h"
+#include <CoreFoundation/CoreFoundation.h>
+#endif
+
+namespace WTF {
+
+static UCollator* cachedCollator;
+static Mutex& cachedCollatorMutex()
+{
+    AtomicallyInitializedStatic(Mutex&, mutex = *new Mutex);
+    return mutex;
+}
+
+Collator::Collator(const char* locale)
+    : m_collator(0)
+    , m_locale(locale ? strdup(locale) : 0)
+    , m_lowerFirst(false)
+{
+}
+
+PassOwnPtr<Collator> Collator::userDefault()
+{
+#if OS(DARWIN) && PLATFORM(CF)
+    // Mac OS X doesn't set UNIX locale to match user-selected one, so ICU default doesn't work.
+#if !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD) && !OS(IOS)
+    RetainPtr<CFLocaleRef> currentLocale(AdoptCF, CFLocaleCopyCurrent());
+    CFStringRef collationOrder = (CFStringRef)CFLocaleGetValue(currentLocale.get(), kCFLocaleCollatorIdentifier);
+#else
+    RetainPtr<CFStringRef> collationOrderRetainer(AdoptCF, (CFStringRef)CFPreferencesCopyValue(CFSTR("AppleCollationOrder"), kCFPreferencesAnyApplication, kCFPreferencesCurrentUser, kCFPreferencesAnyHost));
+    CFStringRef collationOrder = collationOrderRetainer.get();
+#endif
+    char buf[256];
+    if (!collationOrder)
+        return adoptPtr(new Collator(""));
+    CFStringGetCString(collationOrder, buf, sizeof(buf), kCFStringEncodingASCII);
+    return adoptPtr(new Collator(buf));
+#else
+    return adoptPtr(new Collator(0));
+#endif
+}
+
+Collator::~Collator()
+{
+    releaseCollator();
+    free(m_locale);
+}
+
+void Collator::setOrderLowerFirst(bool lowerFirst)
+{
+    m_lowerFirst = lowerFirst;
+}
+
+Collator::Result Collator::collate(const UChar* lhs, size_t lhsLength, const UChar* rhs, size_t rhsLength) const
+{
+    if (!m_collator)
+        createCollator();
+
+    return static_cast<Result>(ucol_strcoll(m_collator, lhs, lhsLength, rhs, rhsLength));
+}
+
+void Collator::createCollator() const
+{
+    ASSERT(!m_collator);
+    UErrorCode status = U_ZERO_ERROR;
+
+    {
+        Locker<Mutex> lock(cachedCollatorMutex());
+        if (cachedCollator) {
+            const char* cachedCollatorLocale = ucol_getLocaleByType(cachedCollator, ULOC_REQUESTED_LOCALE, &status);
+            ASSERT(U_SUCCESS(status));
+            ASSERT(cachedCollatorLocale);
+
+            UColAttributeValue cachedCollatorLowerFirst = ucol_getAttribute(cachedCollator, UCOL_CASE_FIRST, &status);
+            ASSERT(U_SUCCESS(status));
+
+            // FIXME: default locale is never matched, because ucol_getLocaleByType returns the actual one used, not 0.
+            if (m_locale && 0 == strcmp(cachedCollatorLocale, m_locale)
+                && ((UCOL_LOWER_FIRST == cachedCollatorLowerFirst && m_lowerFirst) || (UCOL_UPPER_FIRST == cachedCollatorLowerFirst && !m_lowerFirst))) {
+                m_collator = cachedCollator;
+                cachedCollator = 0;
+                return;
+            }
+        }
+    }
+
+    m_collator = ucol_open(m_locale, &status);
+    if (U_FAILURE(status)) {
+        status = U_ZERO_ERROR;
+        m_collator = ucol_open("", &status); // Fallback to Unicode Collation Algorithm.
+    }
+    ASSERT(U_SUCCESS(status));
+
+    ucol_setAttribute(m_collator, UCOL_CASE_FIRST, m_lowerFirst ? UCOL_LOWER_FIRST : UCOL_UPPER_FIRST, &status);
+    ASSERT(U_SUCCESS(status));
+}
+
+void Collator::releaseCollator()
+{
+    {
+        Locker<Mutex> lock(cachedCollatorMutex());
+        if (cachedCollator)
+            ucol_close(cachedCollator);
+        cachedCollator = m_collator;
+        m_collator  = 0;
+    }
+}
+
+}
+
+#endif