1 files changed, 95 insertions, 0 deletions
diff --git a/i18npool/source/transliteration/ignoreDiacritics_CTL.cxx b/i18npool/source/transliteration/ignoreDiacritics_CTL.cxx
new file mode 100644
index 000000000..9339d87ea
--- /dev/null
+++ b/i18npool/source/transliteration/ignoreDiacritics_CTL.cxx
@@ -0,0 +1,95 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <comphelper/sequence.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <transliteration_Ignore.hxx>
+#include <unicode/translit.h>
+
+namespace i18npool {
+
+ignoreDiacritics_CTL::ignoreDiacritics_CTL()
+{
+    func = nullptr;
+    table = nullptr;
+    map = nullptr;
+    transliterationName = "ignoreDiacritics_CTL";
+    implementationName = "com.sun.star.i18n.Transliteration.ignoreDiacritics_CTL";
+
+    UErrorCode nStatus = U_ZERO_ERROR;
+    m_transliterator.reset( icu::Transliterator::createInstance("NFD; [:M:] Remove; NFC",
+            UTRANS_FORWARD, nStatus) );
+    if (U_FAILURE(nStatus))
+        m_transliterator = nullptr;
+}
+
+sal_Unicode SAL_CALL
+ignoreDiacritics_CTL::transliterateChar2Char(sal_Unicode nInChar)
+{
+    if (!m_transliterator)
+        throw css::uno::RuntimeException();
+
+    icu::UnicodeString aChar(nInChar);
+    m_transliterator->transliterate(aChar);
+
+    if (aChar.isEmpty())
+        return 0xffff; // Skip this character.
+
+    if (aChar.length() > 1)
+        return nInChar; // Don't know what to do here, return the original.
+
+    return aChar[0];
+}
+
+OUString
+ignoreDiacritics_CTL::foldingImpl(const OUString& rInStr, sal_Int32 nStartPos,
+    sal_Int32 nCount, css::uno::Sequence<sal_Int32>* pOffset)
+{
+    if (!m_transliterator)
+        throw css::uno::RuntimeException();
+
+    if (nStartPos < 0 || nStartPos + nCount > rInStr.getLength())
+        throw css::uno::RuntimeException();
+
+    if (pOffset)
+    {
+        OUStringBuffer aOutBuf(nCount);
+
+        std::vector<sal_Int32> aOffset;
+        aOffset.reserve(nCount);
+
+        sal_Int32 nPosition = nStartPos;
+        while (nPosition < nStartPos + nCount)
+        {
+            sal_Int32 nIndex = nPosition;
+            UChar32 nChar = rInStr.iterateCodePoints(&nIndex);
+            icu::UnicodeString aUStr(nChar);
+            m_transliterator->transliterate(aUStr);
+
+            aOutBuf.append(reinterpret_cast<const sal_Unicode*>(aUStr.getBuffer()), aUStr.length());
+
+            std::fill_n(std::back_inserter(aOffset), aUStr.length(), nPosition);
+
+            nPosition = nIndex;
+        }
+
+        *pOffset = comphelper::containerToSequence(aOffset);
+        return aOutBuf.makeStringAndClear();
+    }
+    else
+    {
+        icu::UnicodeString aUStr(reinterpret_cast<const UChar*>(rInStr.getStr()) + nStartPos, nCount);
+        m_transliterator->transliterate(aUStr);
+        return OUString(reinterpret_cast<const sal_Unicode*>(aUStr.getBuffer()), aUStr.length());
+    }
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */