1 files changed, 97 insertions, 0 deletions
diff --git a/i18npool/source/collator/chaptercollator.cxx b/i18npool/source/collator/chaptercollator.cxx
new file mode 100644
index 0000000000..b79ad5b524
--- /dev/null
+++ b/i18npool/source/collator/chaptercollator.cxx
@@ -0,0 +1,97 @@
+/* -*- 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <cppuhelper/supportsservice.hxx>
+#include <chaptercollator.hxx>
+#include <com/sun/star/i18n/KCharacterType.hpp>
+#include <com/sun/star/i18n/ParseResult.hpp>
+#include <com/sun/star/i18n/CharacterClassification.hpp>
+
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::i18n;
+
+namespace i18npool {
+
+ChapterCollator::ChapterCollator( const Reference < XComponentContext >& rxContext ) : CollatorImpl(rxContext)
+{
+    cclass = CharacterClassification::create( rxContext );
+}
+
+ChapterCollator::~ChapterCollator()
+{
+}
+
+sal_Int32 SAL_CALL
+ChapterCollator::compareString( const OUString& s1, const OUString& s2)
+{
+    return compareSubstring(s1, 0, s1.getLength(),  s2, 0, s2.getLength());
+}
+
+#define DIGIT KCharacterType::DIGIT
+
+sal_Int32 SAL_CALL
+ChapterCollator::compareSubstring( const OUString& str1, sal_Int32 off1, sal_Int32 len1,
+    const OUString& str2, sal_Int32 off2, sal_Int32 len2)
+{
+    if( len1 <= 1 || len2 <= 1 || ! cclass.is() )
+        return CollatorImpl::compareSubstring( str1, off1,  len1, str2, off2, len2 );
+
+    sal_Int32 i1, i2;
+    for (i1 = len1; i1 && (cclass->getCharacterType(str1, off1+i1-1, nLocale) & DIGIT); i1--) ;
+    for (i2 = len2; i2 && (cclass->getCharacterType(str2, off2+i2-1, nLocale) & DIGIT); i2--) ;
+
+    sal_Int32 ans = CollatorImpl::compareSubstring(str1, off1, i1, str2, off2, i2);
+    if( ans != 0 )
+        return ans;
+
+    static constexpr OUString aAddAllowed(u"?"_ustr);
+    ParseResult res1, res2;
+    // since parseAnyToken does not take length as parameter, we have to copy
+    // it to a temp. string.
+    OUString s1 = str1.copy(off1+i1, len1-i1), s2 = str2.copy(off2+i2, len2-i2);
+    res1 = cclass->parseAnyToken( s1, 0, nLocale, DIGIT, aAddAllowed, DIGIT, aAddAllowed );
+    res2 = cclass->parseAnyToken( s2, 0, nLocale, DIGIT, aAddAllowed, DIGIT, aAddAllowed );
+
+    return res1.Value == res2.Value ? 0 : res1.Value > res2.Value ? 1 : -1;
+}
+
+constexpr OUString cChapCollator = u"com.sun.star.i18n.ChapterCollator"_ustr;
+
+OUString SAL_CALL
+ChapterCollator::getImplementationName()
+{
+    return cChapCollator;
+}
+
+sal_Bool SAL_CALL
+ChapterCollator::supportsService(const OUString& rServiceName)
+{
+    return cppu::supportsService(this, rServiceName);
+}
+
+Sequence< OUString > SAL_CALL
+ChapterCollator::getSupportedServiceNames()
+{
+    Sequence< OUString > aRet { cChapCollator };
+    return aRet;
+}
+
+}
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */