HexBin.hpp Source File

00001 /*
00002  * Copyright 2001,2004 The Apache Software Foundation.
00003  * 
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  * 
00008  *      http://www.apache.org/licenses/LICENSE-2.0
00009  * 
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 
00017 /*
00018  * $Id: HexBin.hpp,v 1.6 2004/09/08 13:56:22 peiyongz Exp $
00019  */
00020 
00021 #ifndef HEXBIN_HPP
00022 #define HEXBIN_HPP
00023 
00024 #include <xercesc/util/PlatformUtils.hpp>
00025 
00026 XERCES_CPP_NAMESPACE_BEGIN
00027 
00028 class  HexBin
00029 {
00030 public :
00032 
00042     static int  getDataLength(const XMLCh* const hexData);
00043 
00053     static bool isArrayByteHex(const XMLCh* const hexData);
00054 
00069     static XMLCh* getCanonicalRepresentation
00070                   (
00071                       const XMLCh*          const hexData
00072                     ,       MemoryManager*  const manager = XMLPlatformUtils::fgMemoryManager
00073                   );
00074 
00091     static XMLCh* decode(
00092                          const XMLCh*          const    hexData
00093                        ,       MemoryManager*  const    manager = XMLPlatformUtils::fgMemoryManager
00094                         );
00095 
00096 
00098 
00099 private :
00100 
00101     // -----------------------------------------------------------------------
00102     //  Helper methods
00103     // -----------------------------------------------------------------------
00104 
00105     static void init();
00106 
00107     static bool isHex(const XMLCh& octect);
00108 
00109     // -----------------------------------------------------------------------
00110     //  Unimplemented constructors and operators
00111     // -----------------------------------------------------------------------
00112     HexBin();
00113     HexBin(const HexBin&);
00114     HexBin& operator=(const HexBin&);
00115 
00116     // -----------------------------------------------------------------------
00117     //  Private data members
00118     //
00119     //  isInitialized
00120     //
00121     //     set once hexNumberTable is initalized.
00122     //
00123     //  hexNumberTable
00124     //
00125     //     arrany holding valid hexNumber character.
00126     //
00127     // -----------------------------------------------------------------------
00128     static bool       isInitialized;
00129     static bool       hexNumberTable[];
00130 };
00131 
00132 XERCES_CPP_NAMESPACE_END
00133 
00134 #endif