Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 190 insertions, 0 deletions

diff --git a/connectivity/source/commontools/dbcharset.cxx b/connectivity/source/commontools/dbcharset.cxx
new file mode 100644
index 000000000..ebe45c028
--- /dev/null
+++ b/connectivity/source/commontools/dbcharset.cxx
@@ -0,0 +1,190 @@
+/* -*- 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 <connectivity/dbcharset.hxx>
+#include <osl/diagnose.h>
+#include <rtl/tencinfo.h>
+
+
+namespace dbtools
+{
+
+    OCharsetMap::OCharsetMap()
+    {
+    }
+
+
+    void OCharsetMap::lateConstruct()
+    {
+        const rtl_TextEncoding eFirstEncoding = RTL_TEXTENCODING_DONTKNOW;
+        const rtl_TextEncoding eLastEncoding = 100;     // TODO: a define in rtl/textenc.h would be fine here ...
+        OSL_ENSURE( 0 == eFirstEncoding, "OCharsetMap::OCharsetMap: somebody changed the numbers!" );
+
+        rtl_TextEncodingInfo aInfo; aInfo.StructSize = sizeof( rtl_TextEncodingInfo );
+        for ( rtl_TextEncoding eEncoding = eFirstEncoding; eEncoding < eLastEncoding; ++eEncoding )
+        {
+            if  (   ( RTL_TEXTENCODING_DONTKNOW == eEncoding )  // this is always allowed - it has the special meaning "system encoding"
+                ||  (   rtl_getTextEncodingInfo( eEncoding, &aInfo )
+                    &&  approveEncoding( eEncoding, aInfo )
+                    )
+                )
+            {
+                m_aEncodings.insert( eEncoding );
+            }
+        }
+
+        OSL_ENSURE( find( RTL_TEXTENCODING_MS_1252 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding ANSI!" );
+        OSL_ENSURE( find( RTL_TEXTENCODING_APPLE_ROMAN ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding macintosh!" );
+        OSL_ENSURE( find( RTL_TEXTENCODING_IBM_437 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM437!" );
+        OSL_ENSURE( find( RTL_TEXTENCODING_IBM_850) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM850!" );
+        OSL_ENSURE( find( RTL_TEXTENCODING_IBM_860 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM860!" );
+        OSL_ENSURE( find( RTL_TEXTENCODING_IBM_861 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM861!" );
+        OSL_ENSURE( find( RTL_TEXTENCODING_IBM_863 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM863!" );
+        OSL_ENSURE( find( RTL_TEXTENCODING_IBM_865 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM865!" );
+        OSL_ENSURE( find( RTL_TEXTENCODING_IBM_866 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding IBM866!" );
+        OSL_ENSURE( find( RTL_TEXTENCODING_DONTKNOW ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding SYSTEM!" );
+        OSL_ENSURE( find( RTL_TEXTENCODING_UTF8 ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding UTF-8!" );
+        OSL_ENSURE( find( RTL_TEXTENCODING_BIG5_HKSCS ) != end(), "OCharsetMap::lateConstruct: missing compatibility encoding Big5-HKSCS!" );
+    }
+
+
+    bool OCharsetMap::approveEncoding( const rtl_TextEncoding _eEncoding, const rtl_TextEncodingInfo& _rInfo ) const
+    {
+        bool bIsMimeEncoding = 0 != ( _rInfo.Flags & RTL_TEXTENCODING_INFO_MIME );
+        OSL_ENSURE( !bIsMimeEncoding || rtl_getMimeCharsetFromTextEncoding( _eEncoding ),
+                "OCharsetMap::OCharsetMap: inconsistence in rtl!" );
+        return bIsMimeEncoding;
+    }
+
+
+    OCharsetMap::~OCharsetMap()
+    {
+    }
+
+
+    OCharsetMap::CharsetIterator OCharsetMap::begin() const
+    {
+        ensureConstructed( );
+        return CharsetIterator(this, m_aEncodings.begin() );
+    }
+
+
+    OCharsetMap::CharsetIterator    OCharsetMap::find(const rtl_TextEncoding _eEncoding) const
+    {
+        ensureConstructed( );
+        return CharsetIterator( this, m_aEncodings.find( _eEncoding ) );
+    }
+
+
+    OCharsetMap::CharsetIterator    OCharsetMap::findIanaName(const OUString& _rIanaName) const
+    {
+        ensureConstructed( );
+
+        rtl_TextEncoding eEncoding = RTL_TEXTENCODING_DONTKNOW;
+        if ( !_rIanaName.isEmpty() )
+        {
+            // byte string conversion
+            OString sMimeByteString( _rIanaName.getStr(), _rIanaName.getLength(), RTL_TEXTENCODING_ASCII_US );
+            // look up
+            eEncoding = rtl_getTextEncodingFromMimeCharset( sMimeByteString.getStr() );
+
+            if ( RTL_TEXTENCODING_DONTKNOW == eEncoding )
+            {   // if we're here, the name is not empty, but unknown -> this is an invalid name
+                return end();
+            }
+        }
+
+        return find( eEncoding );
+    }
+
+
+    OCharsetMap::CharsetIterator OCharsetMap::end() const
+    {
+        ensureConstructed( );
+
+        return CharsetIterator( this, m_aEncodings.end() );
+    }
+
+
+    CharsetIteratorDerefHelper::CharsetIteratorDerefHelper( const CharsetIteratorDerefHelper& _rSource )
+        :m_eEncoding( _rSource.m_eEncoding )
+        ,m_aIanaName( _rSource.m_aIanaName )
+    {
+    }
+
+
+    CharsetIteratorDerefHelper:: CharsetIteratorDerefHelper(const rtl_TextEncoding _eEncoding, const OUString& _rIanaName )
+        :m_eEncoding( _eEncoding )
+        ,m_aIanaName( _rIanaName )
+    {
+    }
+
+    OCharsetMap::CharsetIterator::CharsetIterator(const OCharsetMap* _pContainer, OCharsetMap::TextEncBag::const_iterator const & _aPos )
+        :m_pContainer( _pContainer )
+        ,m_aPos( _aPos )
+    {
+        OSL_ENSURE( m_pContainer, "OCharsetMap::CharsetIterator::CharsetIterator : invalid container!" );
+    }
+
+    CharsetIteratorDerefHelper OCharsetMap::CharsetIterator::operator*() const
+    {
+        OSL_ENSURE( m_aPos != m_pContainer->m_aEncodings.end(), "OCharsetMap::CharsetIterator::operator*: invalid position!");
+
+        rtl_TextEncoding eEncoding = *m_aPos;
+        OUString sIanaName;
+
+        if ( RTL_TEXTENCODING_DONTKNOW != eEncoding )
+        {   // it's not the virtual "system charset"
+            const char* pIanaName = rtl_getMimeCharsetFromTextEncoding( eEncoding );
+            OSL_ENSURE( pIanaName, "OCharsetMap::CharsetIterator: invalid mime name!" );
+            if ( pIanaName )
+                sIanaName = OUString::createFromAscii( pIanaName );
+        }
+        return CharsetIteratorDerefHelper( eEncoding, sIanaName );
+    }
+
+
+    const OCharsetMap::CharsetIterator& OCharsetMap::CharsetIterator::operator++()
+    {
+        OSL_ENSURE( m_aPos != m_pContainer->m_aEncodings.end(), "OCharsetMap::CharsetIterator::operator++ : invalid position!" );
+        if ( m_aPos != m_pContainer->m_aEncodings.end())
+            ++m_aPos;
+        return *this;
+    }
+
+
+    const OCharsetMap::CharsetIterator& OCharsetMap::CharsetIterator::operator--()
+    {
+        OSL_ENSURE( m_aPos != m_pContainer->m_aEncodings.begin(), "OCharsetMap::CharsetIterator::operator-- : invalid position!" );
+        if ( m_aPos != m_pContainer->m_aEncodings.begin() )
+            --m_aPos;
+        return *this;
+    }
+
+
+    bool operator==(const OCharsetMap::CharsetIterator& lhs, const OCharsetMap::CharsetIterator& rhs)
+    {
+        return ( lhs.m_pContainer == rhs.m_pContainer ) && ( lhs.m_aPos == rhs.m_aPos );
+    }
+
+
+}   // namespace dbtools
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */