--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web_plat/feeds_engine_api/inc/XmlEncoding.h Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,210 @@
+/*
+* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: A misc. char-encoding related utilities.
+*
+*/
+
+
+#ifndef XML_ENCODING_H
+#define XML_ENCODING_H
+
+
+// INCLUDES
+#include <e32base.h>
+#include <f32file.h>
+
+// CONSTANTS
+
+// MACROS
+
+// DATA TYPES
+
+// FUNCTION PROTOTYPES
+
+// FORWARD DECLARATIONS
+class CCnvCharacterSetConverter;
+
+// CLASS DECLARATION
+
+
+/**
+* A misc. char-encoding related utilities.
+*
+* \b Library: FeedsEngine.lib
+*
+* @since 3.0
+*/
+class CXmlEncoding: public CBase
+ {
+ private: // Data types
+ struct SupportedEncodings
+ {
+ TDesC8* charEncoding;
+ TUint uid;
+ };
+
+
+ public: // Constructors and destructor
+ /**
+ * Two-phased constructor.
+ */
+ IMPORT_C static CXmlEncoding* NewL();
+
+ /**
+ * Destructor.
+ */
+ virtual ~CXmlEncoding();
+
+
+ public: // New methods
+ /**
+ * Resolves the given char-encoding into its uid.
+ *
+ * @since 3.0
+ * @param aCharEncoding The encoding.
+ * @param aUid The resulting uid for the given encoding.
+ * @return ETrue if the encoding was resolved.
+ */
+ TBool ResolveCharEncodingL(const TDesC8& aCharEncoding, TUint& aUid) const;
+
+ /**
+ * Determine the char-encoding.
+ *
+ * @since 3.0
+ * @param aBuffer The native buffer.
+ * @param aCharSet The char-set provided by the orignal source
+ * @param aEncoding The resulting encoding.
+ * @return ETrue if a encoding was determined.
+ */
+ IMPORT_C TBool DetermineCharEncodingL(const TDesC8& aBuffer,
+ const TDesC& aCharSet, TUint& aEncoding) const;
+
+ /**
+ * Determine the char-encoding from the BOM.
+ *
+ * @since 3.0
+ * @param aBuffer The native buffer.
+ * @param aEncoding The resulting encoding.
+ * @return ETrue if a encoding was determined.
+ */
+ TBool DetermineCharEncodingFromBom(const TDesC8& aBuffer, TUint& aEncoding) const;
+
+ /**
+ * Determine the char-encoding from the char-encoding in the xml-prolog.
+ *
+ * @since 3.1
+ * @param aBuffer The native buffer.
+ * @param aEncoding The resulting encoding.
+ * @return ETrue if a encoding was determined.
+ */
+ TBool DetermineCharEncodingFromXmlProlog(const TDesC8& aBuffer, TUint& aEncoding) const;
+
+ /**
+ * Erase the char-encoding attribute (if any) from the xml-prolog.
+ *
+ * @since 3.0
+ * @param aUtf8Buffer The utf8 buffer.
+ * @return void
+ */
+ void StripCharEncoding(HBufC8& aUtf8Buffer) const;
+
+ /**
+ * Erase the char-encoding attribute (if any) from the xml-prolog.
+ *
+ * @since 3.0
+ * @param aUtf8Buffer The utf8 buffer.
+ * @return void
+ */
+ void StripCharEncoding(HBufC16& aUcs2Buffer) const;
+
+ /**
+ * Converts the given native buffer into utf8.
+ *
+ * @since 3.0
+ * @param aEncoding The encoding.
+ * @param aBuffer The native buffer.
+ * @return The converted buffer.
+ */
+ IMPORT_C HBufC8* ConvertToUtf8L(TUint aEncoding, const TDesC8& aBuffer) const;
+
+ /**
+ * Converts the given native buffer into ucs2.
+ *
+ * @since 3.0
+ * @param aEncoding The encoding.
+ * @param aBuffer The native buffer.
+ * @return The converted buffer.
+ */
+ IMPORT_C HBufC16* ConvertToUcs2L(TUint aEncoding, const TDesC8& aBuffer) const;
+
+
+ private:
+ /**
+ * C++ default constructor.
+ */
+ CXmlEncoding();
+
+ /**
+ * By default Symbian 2nd phase constructor is private.
+ */
+ void ConstructL();
+
+ /**
+ * Converts the given ucs2 buffer into utf8.
+ *
+ * @since 3.0
+ * @param aUsc2Buffer The ucs2 buffer.
+ * @return The converted buffer.
+ */
+ HBufC8* ConvertToUtf8L(HBufC16& aUsc2Buffer) const;
+
+ /**
+ * Finds the location of the encoding attribute in the xml-prolog.
+ *
+ * @since 3.0
+ * @param aBuffer The native buffer.
+ * @param aBegin The beginning of the attribute.
+ * @param aEnd The end of the attribute.
+ * @param aValueBegin The beginning of the encoding's value.
+ * @param aValueEnd The end of the encoding's value
+ * @return ETrue if the encoding was found.
+ */
+ TBool CXmlEncoding::FindEncoding(const TDesC8& aBuffer,
+ TInt& aBegin, TInt& aEnd, TInt& aValueBegin, TInt& aValueEnd) const;
+
+ /**
+ * Finds the location of the encoding attribute in the xml-prolog.
+ *
+ * @since 3.0
+ * @param aBuffer The ucs2 buffer.
+ * @param aBegin The beginning of the attribute.
+ * @param aEnd The end of the attribute.
+ * @param aValueBegin The beginning of the encoding's value.
+ * @param aValueEnd The end of the encoding's value
+ * @return ETrue if the encoding was found.
+ */
+ TBool CXmlEncoding::FindEncoding(const TDesC& aBuffer,
+ TInt& aBegin, TInt& aEnd, TInt& aValueBegin, TInt& aValueEnd) const;
+
+
+ private: // Data
+ RFs iRfs;
+ CCnvCharacterSetConverter* iConverter;
+
+ RArray<SupportedEncodings> iCharEncodings;
+ };
+
+#endif // XML_ENCODING_H
+
+// End of File