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# XMLStringTokenizer.hpp

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    00001 /*
    00002  * The Apache Software License, Version 1.1
    00003  *
    00004  * Copyright (c) 2001 The Apache Software Foundation.  All rights
    00005  * reserved.
    00006  *
    00007  * Redistribution and use in source and binary forms, with or without
    00008  * modification, are permitted provided that the following conditions
    00009  * are met:
    00010  *
    00011  * 1. Redistributions of source code must retain the above copyright
    00012  *    notice, this list of conditions and the following disclaimer.
    00013  *
    00014  * 2. Redistributions in binary form must reproduce the above copyright
    00015  *    notice, this list of conditions and the following disclaimer in
    00016  *    the documentation and/or other materials provided with the
    00017  *    distribution.
    00018  *
    00019  * 3. The end-user documentation included with the redistribution,
    00020  *    if any, must include the following acknowledgment:
    00021  *       "This product includes software developed by the
    00022  *        Apache Software Foundation (http://www.apache.org/)."
    00023  *    Alternately, this acknowledgment may appear in the software itself,
    00024  *    if and wherever such third-party acknowledgments normally appear.
    00025  *
    00026  * 4. The names "Xerces" and "Apache Software Foundation" must
    00027  *    not be used to endorse or promote products derived from this
    00028  *    software without prior written permission. For written
    00029  *    permission, please contact apache\@apache.org.
    00030  *
    00031  * 5. Products derived from this software may not be called "Apache",
    00032  *    nor may "Apache" appear in their name, without prior written
    00033  *    permission of the Apache Software Foundation.
    00034  *
    00035  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
    00036  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
    00037  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    00038  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
    00039  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    00040  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    00041  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
    00042  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    00043  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    00044  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
    00045  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    00046  * SUCH DAMAGE.
    00047  * ====================================================================
    00048  *
    00049  * This software consists of voluntary contributions made by many
    00050  * individuals on behalf of the Apache Software Foundation, and was
    00051  * originally based on software copyright (c) 2001, International
    00052  * Business Machines, Inc., http://www.ibm.com .  For more information
    00053  * on the Apache Software Foundation, please see
    00054  * <http://www.apache.org/>.
    00055  */
    00056
    00057 /*
    00058  * $Id: XMLStringTokenizer.hpp,v 1.6 2004/01/29 11:48:47 cargilld Exp $
    00059  */
    00060
    00061 #if !defined(XMLSTRINGTOKENIZER_HPP)
    00062 #define XMLSTRINGTOKENIZER_HPP
    00063
    00064 #include <xercesc/util/RefArrayVectorOf.hpp>
    00065 #include <xercesc/util/XMLString.hpp>
    00066
    00067 XERCES_CPP_NAMESPACE_BEGIN
    00068
    00081   class  XMLStringTokenizer :public XMemory
    00082 {
    00083 public:
    00084     // -----------------------------------------------------------------------
    00085     //  Public Constructors
    00086     // -----------------------------------------------------------------------
    00089
    00102     XMLStringTokenizer(const XMLCh* const srcStr,
    00103                        MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
    00104
    00115     XMLStringTokenizer(const XMLCh* const srcStr
    00116                        , const XMLCh* const delim
    00117                        , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
    00118
    00120
    00121     // -----------------------------------------------------------------------
    00122     //  Public Destructor
    00123     // -----------------------------------------------------------------------
    00126
    00127     ~XMLStringTokenizer();
    00128
    00130
    00131     // -----------------------------------------------------------------------
    00132     // Management methods
    00133     // -----------------------------------------------------------------------
    00136
    00143     bool hasMoreTokens();
    00144
    00153     int countTokens();
    00154
    00161     XMLCh* nextToken();
    00162
    00164
    00165 private:
    00166     // -----------------------------------------------------------------------
    00167     //  Unimplemented constructors and operators
    00168     // -----------------------------------------------------------------------
    00169     XMLStringTokenizer(const XMLStringTokenizer&);
    00170     XMLStringTokenizer& operator=(const XMLStringTokenizer&);
    00171
    00172     // -----------------------------------------------------------------------
    00173     //  CleanUp methods
    00174     // -----------------------------------------------------------------------
    00175     void cleanUp();
    00176
    00177     // -----------------------------------------------------------------------
    00178     //  Helper methods
    00179     // -----------------------------------------------------------------------
    00180     bool isDelimeter(const XMLCh ch);
    00181
    00182     // -----------------------------------------------------------------------
    00183     //  Private data members
    00184     //
    00185     //  fOffset
    00186     //      The current position in the parsed string.
    00187     //
    00188     //  fStringLen
    00189     //      The length of the string parsed (for convenience).
    00190     //
    00191     //  fString
    00192     //      The string to be parsed
    00193     //
    00194     //  fDelimeters
    00195     //      A set of delimeter characters
    00196     //
    00197     //  fTokens
    00198     //      A vector of the token strings
    00199     // -----------------------------------------------------------------------
    00200     int                 fOffset;
    00201     int                 fStringLen;
    00202     XMLCh*              fString;
    00203     XMLCh*              fDelimeters;
    00204     RefArrayVectorOf<XMLCh>* fTokens;
    00205     MemoryManager*           fMemoryManager;
    00206 };
    00207
    00208
    00209 // ---------------------------------------------------------------------------
    00210 //  XMLStringTokenizer: CleanUp methods
    00211 // ---------------------------------------------------------------------------
    00212 inline void XMLStringTokenizer::cleanUp() {
    00213
    00214     fMemoryManager->deallocate(fString);//delete [] fString;
    00215     fMemoryManager->deallocate(fDelimeters);//delete [] fDelimeters;
    00216     delete fTokens;
    00217 }
    00218
    00219 // ---------------------------------------------------------------------------
    00220 //  XMLStringTokenizer: Helper methods
    00221 // ---------------------------------------------------------------------------
    00222 inline bool XMLStringTokenizer::isDelimeter(const XMLCh ch) {
    00223
    00224     return XMLString::indexOf(fDelimeters, ch) == -1 ? false : true;
    00225 }
    00226
    00227
    00228 // ---------------------------------------------------------------------------
    00229 //  XMLStringTokenizer: Management methods
    00230 // ---------------------------------------------------------------------------
    00231 inline int XMLStringTokenizer::countTokens() {
    00232
    00233     if (fStringLen == 0)
    00234         return 0;
    00235
    00236     int  tokCount = 0;
    00237     bool inToken = false;
    00238
    00239     for (int i= fOffset; i< fStringLen; i++) {
    00240
    00241         if (isDelimeter(fString[i])) {
    00242
    00243             if (inToken) {
    00244                 inToken = false;
    00245             }
    00246
    00247             continue;
    00248         }
    00249
    00250         if (!inToken) {
    00251
    00252             tokCount++;
    00253             inToken = true;
    00254         }
    00255
    00256     } // end for
    00257
    00258     return tokCount;
    00259 }
    00260
    00261 XERCES_CPP_NAMESPACE_END
    00262
    00263 #endif
    00264

Copyright © 2004 The Apache Software Foundation. All Rights Reserved.