129 lines
3.9 KiB
C++
129 lines
3.9 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* $Id$
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*/
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#if !defined(XERCESC_INCLUDE_GUARD_HEXBIN_HPP)
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#define XERCESC_INCLUDE_GUARD_HEXBIN_HPP
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#include <xercesc/util/PlatformUtils.hpp>
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namespace XERCES_CPP_NAMESPACE {
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class XMLUTIL_EXPORT HexBin
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{
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public :
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//@{
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/**
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* return the length of hexData in terms of HexBinary.
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*
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* @param hexData A string containing the HexBinary
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*
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* return: -1 if it contains any invalid HexBinary
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* the length of the HexNumber otherwise.
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*/
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static int getDataLength(const XMLCh* const hexData);
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/**
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* check an array of data against the Hex table.
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*
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* @param hexData A string containing the HexBinary
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*
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* return: false if it contains any invalid HexBinary
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* true otherwise.
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*/
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static bool isArrayByteHex(const XMLCh* const hexData);
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/**
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* get canonical representation
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*
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* Caller is responsible for the proper deallocation
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* of the string returned.
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*
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* @param hexData A string containing the HexBinary
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* @param manager The MemoryManager to use to allocate the string
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*
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* return: the canonical representation of the HexBinary
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* if it is a valid HexBinary,
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* 0 otherwise
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*/
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static XMLCh* getCanonicalRepresentation
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(
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const XMLCh* const hexData
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, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
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);
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/**
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* Decodes HexBinary data into XMLByte
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*
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* NOTE: The returned buffer is dynamically allocated and is the
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* responsibility of the caller to delete it when not longer needed.
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* Use the memory manager to release the returned buffer.
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*
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* @param hexData HexBinary data in XMLCh stream.
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* @param manager client provided memory manager
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* @return Decoded binary data in XMLByte stream,
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* or NULL if input data can not be decoded.
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*/
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static XMLByte* decodeToXMLByte(
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const XMLCh* const hexData
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, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
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);
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//@}
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private :
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// -----------------------------------------------------------------------
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// Helper methods
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// -----------------------------------------------------------------------
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static bool isHex(const XMLCh& octet);
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// -----------------------------------------------------------------------
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// Unimplemented constructors and operators
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// -----------------------------------------------------------------------
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HexBin();
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HexBin(const HexBin&);
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HexBin& operator=(const HexBin&);
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// -----------------------------------------------------------------------
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// Private data members
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//
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// isInitialized
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//
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// set once hexNumberTable is initialized.
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//
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// hexNumberTable
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//
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// arrany holding valid hexNumber character.
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//
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// -----------------------------------------------------------------------
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static const XMLByte hexNumberTable[];
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};
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}
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#endif
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