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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
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    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 1.4 2003/05/16 03:11:22 knoaman 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
    00100     XMLStringTokenizer(const XMLCh* const srcStr,
    00101                        MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
    00102
    00111     XMLStringTokenizer(const XMLCh* const srcStr
    00112                        , const XMLCh* const delim
    00113                        , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
    00114
    00116
    00117     // -----------------------------------------------------------------------
    00118     //  Public Destructor
    00119     // -----------------------------------------------------------------------
    00122
    00123     ~XMLStringTokenizer();
    00124
    00126
    00127     // -----------------------------------------------------------------------
    00128     // Management methods
    00129     // -----------------------------------------------------------------------
    00132
    00139     bool hasMoreTokens();
    00140
    00149     int countTokens();
    00150
    00157     XMLCh* nextToken();
    00158
    00160
    00161 private:
    00162     // -----------------------------------------------------------------------
    00163     //  CleanUp methods
    00164     // -----------------------------------------------------------------------
    00165     void cleanUp();
    00166
    00167     // -----------------------------------------------------------------------
    00168     //  Helper methods
    00169     // -----------------------------------------------------------------------
    00170     bool isDelimeter(const XMLCh ch);
    00171
    00172     // -----------------------------------------------------------------------
    00173     //  Private data members
    00174     //
    00175     //  fOffset
    00176     //      The current position in the parsed string.
    00177     //
    00178     //  fStringLen
    00179     //      The length of the string parsed (for convenience).
    00180     //
    00181     //  fString
    00182     //      The string to be parsed
    00183     //
    00184     //  fDelimeters
    00185     //      A set of delimeter characters
    00186     //
    00187     //  fTokens
    00188     //      A vector of the token strings
    00189     // -----------------------------------------------------------------------
    00190     int                 fOffset;
    00191     int                 fStringLen;
    00192     XMLCh*              fString;
    00193     XMLCh*              fDelimeters;
    00194     RefArrayVectorOf<XMLCh>* fTokens;
    00195     MemoryManager*           fMemoryManager;
    00196 };
    00197
    00198
    00199 // ---------------------------------------------------------------------------
    00200 //  XMLStringTokenizer: CleanUp methods
    00201 // ---------------------------------------------------------------------------
    00202 inline void XMLStringTokenizer::cleanUp() {
    00203
    00204     fMemoryManager->deallocate(fString);//delete [] fString;
    00205     fMemoryManager->deallocate(fDelimeters);//delete [] fDelimeters;
    00206     delete fTokens;
    00207 }
    00208
    00209 // ---------------------------------------------------------------------------
    00210 //  XMLStringTokenizer: Helper methods
    00211 // ---------------------------------------------------------------------------
    00212 inline bool XMLStringTokenizer::isDelimeter(const XMLCh ch) {
    00213
    00214     return XMLString::indexOf(fDelimeters, ch) == -1 ? false : true;
    00215 }
    00216
    00217
    00218 // ---------------------------------------------------------------------------
    00219 //  XMLStringTokenizer: Management methods
    00220 // ---------------------------------------------------------------------------
    00221 inline int XMLStringTokenizer::countTokens() {
    00222
    00223     if (fStringLen == 0)
    00224         return 0;
    00225
    00226     int  tokCount = 0;
    00227     bool inToken = false;
    00228
    00229     for (int i= fOffset; i< fStringLen; i++) {
    00230
    00231         if (isDelimeter(fString[i])) {
    00232
    00233             if (inToken) {
    00234                 inToken = false;
    00235             }
    00236
    00237             continue;
    00238         }
    00239
    00240         if (!inToken) {
    00241
    00242             tokCount++;
    00243             inToken = true;
    00244         }
    00245
    00246     } // end for
    00247
    00248     return tokCount;
    00249 }
    00250
    00251 XERCES_CPP_NAMESPACE_END
    00252
    00253 #endif
    00254

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