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diff --git a/ucb/source/ucp/hierarchy/hierarchyuri.cxx b/ucb/source/ucp/hierarchy/hierarchyuri.cxx
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+/* -*- 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 .
+ */
+
+
+/**************************************************************************
+ TODO
+ **************************************************************************
+
+ *************************************************************************/
+
+#include "hierarchyuri.hxx"
+
+using namespace hierarchy_ucp;
+
+constexpr OUStringLiteral HIERARCHY_URL_SCHEME = u"vnd.sun.star.hier";
+constexpr OUStringLiteral DEFAULT_DATA_SOURCE_SERVICE =
+ u"com.sun.star.ucb.DefaultHierarchyDataSource";
+
+
+// HierarchyUri Implementation.
+
+
+void HierarchyUri::init() const
+{
+ // Already inited?
+ if ( m_aUri.isEmpty() || !m_aPath.isEmpty() )
+ return;
+
+ // Note: Maybe it's a re-init, setUri only resets m_aPath!
+ m_aService.clear();
+ m_aParentUri.clear();
+
+ // URI must match at least: <scheme>:
+ if ( m_aUri.getLength() < HIERARCHY_URL_SCHEME.getLength() + 1 )
+ {
+ // error, but remember that we did an init().
+ m_aPath = "/";
+ return;
+ }
+
+ // Scheme is case insensitive.
+ OUString aScheme
+ = m_aUri.copy( 0, HIERARCHY_URL_SCHEME.getLength() ).toAsciiLowerCase();
+ if ( aScheme == HIERARCHY_URL_SCHEME )
+ {
+ m_aUri = m_aUri.replaceAt( 0, aScheme.getLength(), aScheme );
+
+ sal_Int32 nPos = 0;
+
+ // If the URI has no service specifier, insert default service.
+ // This is for backward compatibility and for convenience.
+
+ if ( m_aUri.getLength() == HIERARCHY_URL_SCHEME.getLength() + 1 )
+ {
+ // root folder URI without path and service specifier.
+ m_aUri += "//" + DEFAULT_DATA_SOURCE_SERVICE + "/";
+ m_aService = DEFAULT_DATA_SOURCE_SERVICE ;
+
+ nPos = m_aUri.getLength() - 1;
+ }
+ else if ( ( m_aUri.getLength() == HIERARCHY_URL_SCHEME.getLength() + 2 )
+ &&
+ ( m_aUri[ HIERARCHY_URL_SCHEME.getLength() + 1 ] == '/' ) )
+ {
+ // root folder URI without service specifier.
+ m_aUri += "/" + DEFAULT_DATA_SOURCE_SERVICE + "/";
+ m_aService = DEFAULT_DATA_SOURCE_SERVICE;
+
+ nPos = m_aUri.getLength() - 1;
+ }
+ else if ( ( m_aUri.getLength() > HIERARCHY_URL_SCHEME.getLength() + 2 )
+ &&
+ ( m_aUri[ HIERARCHY_URL_SCHEME.getLength() + 2 ] != '/' ) )
+ {
+ // other (no root folder) URI without service specifier.
+ m_aUri = m_aUri.replaceAt(
+ HIERARCHY_URL_SCHEME.getLength() + 2,
+ 0,
+ rtl::OUStringConcatenation("/" + DEFAULT_DATA_SOURCE_SERVICE + "/") );
+ m_aService = DEFAULT_DATA_SOURCE_SERVICE;
+
+ nPos
+ = HIERARCHY_URL_SCHEME.getLength() + 3 + m_aService.getLength();
+ }
+ else
+ {
+ // URI with service specifier.
+ sal_Int32 nStart = HIERARCHY_URL_SCHEME.getLength() + 3;
+
+ // Here: - m_aUri has at least the form "<scheme>://"
+ // - nStart points to char after <scheme>:
+
+ // Only <scheme>:// ?
+ if ( nStart == m_aUri.getLength() )
+ {
+ // error, but remember that we did an init().
+ m_aPath = "/";
+ return;
+ }
+
+ // Empty path segments?
+ if ( m_aUri.indexOf("//", nStart) != -1 )
+ {
+ // error, but remember that we did an init().
+ m_aPath = "/";
+ return;
+ }
+
+ sal_Int32 nEnd = m_aUri.indexOf( '/', nStart );
+
+ // Only <scheme>:/// ?
+ if ( nEnd == nStart )
+ {
+ // error, but remember that we did an init().
+ m_aPath = "/";
+ return;
+ }
+
+ if ( nEnd == -1 )
+ {
+ // Trailing slash missing.
+ nEnd = m_aUri.getLength();
+ m_aUri += "/";
+ }
+
+ m_aService = m_aUri.copy( nStart, nEnd - nStart );
+
+ nPos = nEnd;
+ }
+
+ // Here: - m_aUri has at least the form "<scheme>://<service>/"
+ // - m_aService was set
+ // - m_aPath, m_aParentPath, m_aName not yet set
+ // - nPos points to slash after service specifier
+
+ // Remove trailing slash, if not a root folder URI.
+ sal_Int32 nEnd = m_aUri.lastIndexOf( '/' );
+ if ( ( nEnd > nPos ) && ( nEnd == ( m_aUri.getLength() - 1 ) ) )
+ m_aUri = m_aUri.copy( 0, nEnd );
+
+ // Path (includes leading slash)
+ m_aPath = m_aUri.copy( nPos );
+
+ // parent URI + name
+ sal_Int32 nLastSlash = m_aUri.lastIndexOf( '/' );
+ if ( ( nLastSlash != -1 ) &&
+ ( nLastSlash != m_aUri.getLength() - 1 ) ) // root
+ {
+ m_aParentUri = m_aUri.copy( 0, nLastSlash );
+ }
+
+ // success
+ m_bValid = true;
+ }
+ else
+ {
+ // error, but remember that we did an init().
+ m_aPath = "/";
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */