ICU-531.30.tar.gz

[apple/icu.git] / icuSources / i18n / collationtailoring.cpp

diff --git a/icuSources/i18n/collationtailoring.cpp b/icuSources/i18n/collationtailoring.cpp
new file mode 100644 (file)
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+++ b/icuSources/i18n/collationtailoring.cpp
@@ -0,0 +1,106 @@
+/*
+*******************************************************************************
+* Copyright (C) 2013-2014, International Business Machines
+* Corporation and others.  All Rights Reserved.
+*******************************************************************************
+* collationtailoring.cpp
+*
+* created on: 2013mar12
+* created by: Markus W. Scherer
+*/
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_COLLATION
+
+#include "unicode/udata.h"
+#include "unicode/unistr.h"
+#include "unicode/ures.h"
+#include "unicode/uversion.h"
+#include "unicode/uvernum.h"
+#include "cmemory.h"
+#include "collationdata.h"
+#include "collationsettings.h"
+#include "collationtailoring.h"
+#include "normalizer2impl.h"
+#include "uassert.h"
+#include "uhash.h"
+#include "umutex.h"
+#include "utrie2.h"
+
+U_NAMESPACE_BEGIN
+
+CollationTailoring::CollationTailoring(const CollationSettings *baseSettings)
+        : data(NULL), settings(baseSettings),
+          actualLocale(""),
+          ownedData(NULL),
+          builder(NULL), memory(NULL), bundle(NULL),
+          trie(NULL), unsafeBackwardSet(NULL),
+          maxExpansions(NULL) {
+    if(baseSettings != NULL) {
+        U_ASSERT(baseSettings->reorderCodesLength == 0);
+        U_ASSERT(baseSettings->reorderTable == NULL);
+    } else {
+        settings = new CollationSettings();
+    }
+    if(settings != NULL) {
+        settings->addRef();
+    }
+    rules.getTerminatedBuffer();  // ensure NUL-termination
+    version[0] = version[1] = version[2] = version[3] = 0;
+    maxExpansionsInitOnce.reset();
+}
+
+CollationTailoring::~CollationTailoring() {
+    SharedObject::clearPtr(settings);
+    delete ownedData;
+    delete builder;
+    udata_close(memory);
+    ures_close(bundle);
+    utrie2_close(trie);
+    delete unsafeBackwardSet;
+    uhash_close(maxExpansions);
+    maxExpansionsInitOnce.reset();
+}
+
+UBool
+CollationTailoring::ensureOwnedData(UErrorCode &errorCode) {
+    if(U_FAILURE(errorCode)) { return FALSE; }
+    if(ownedData == NULL) {
+        const Normalizer2Impl *nfcImpl = Normalizer2Factory::getNFCImpl(errorCode);
+        if(U_FAILURE(errorCode)) { return FALSE; }
+        ownedData = new CollationData(*nfcImpl);
+        if(ownedData == NULL) {
+            errorCode = U_MEMORY_ALLOCATION_ERROR;
+            return FALSE;
+        }
+    }
+    data = ownedData;
+    return TRUE;
+}
+
+void
+CollationTailoring::makeBaseVersion(const UVersionInfo ucaVersion, UVersionInfo version) {
+    version[0] = UCOL_BUILDER_VERSION;
+    version[1] = (ucaVersion[0] << 3) + ucaVersion[1];
+    version[2] = ucaVersion[2] << 6;
+    version[3] = 0;
+}
+
+void
+CollationTailoring::setVersion(const UVersionInfo baseVersion, const UVersionInfo rulesVersion) {
+    version[0] = UCOL_BUILDER_VERSION;
+    version[1] = baseVersion[1];
+    version[2] = (baseVersion[2] & 0xc0) + ((rulesVersion[0] + (rulesVersion[0] >> 6)) & 0x3f);
+    version[3] = (rulesVersion[1] << 3) + (rulesVersion[1] >> 5) + rulesVersion[2] +
+            (rulesVersion[3] << 4) + (rulesVersion[3] >> 4);
+}
+
+int32_t
+CollationTailoring::getUCAVersion() const {
+    return ((int32_t)version[1] << 4) | (version[2] >> 6);
+}
+
+U_NAMESPACE_END
+
+#endif  // !UCONFIG_NO_COLLATION