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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 1.1.1.1 2002/02/01 22:22:16 peiyongz Exp $
    00059  */
    00060
    00061 #if !defined(XMLSTRINGTOKENIZER_HPP)
    00062 #define XMLSTRINGTOKENIZER_HPP
    00063
    00064 #include <xercesc/util/RefVectorOf.hpp>
    00065 #include <xercesc/util/XMLString.hpp>
    00066
    00077
    00078
    00079 class  XMLStringTokenizer
    00080 {
    00081 public:
    00082     // -----------------------------------------------------------------------
    00083     //  Public Constructors
    00084     // -----------------------------------------------------------------------
    00087
    00098     XMLStringTokenizer(const XMLCh* const srcStr);
    00099
    00108     XMLStringTokenizer(const XMLCh* const srcStr, const XMLCh* const delim);
    00109
    00111
    00112     // -----------------------------------------------------------------------
    00113     //  Public Destructor
    00114     // -----------------------------------------------------------------------
    00117
    00118     ~XMLStringTokenizer();
    00119
    00121
    00122     // -----------------------------------------------------------------------
    00123     // Management methods
    00124     // -----------------------------------------------------------------------
    00127
    00134     bool hasMoreTokens();
    00135
    00144     int countTokens();
    00145
    00152     XMLCh* nextToken();
    00153
    00155
    00156 private:
    00157     // -----------------------------------------------------------------------
    00158     //  CleanUp methods
    00159     // -----------------------------------------------------------------------
    00160     void cleanUp();
    00161
    00162     // -----------------------------------------------------------------------
    00163     //  Helper methods
    00164     // -----------------------------------------------------------------------
    00165     bool isDelimeter(const XMLCh ch);
    00166
    00167     // -----------------------------------------------------------------------
    00168     //  Private data members
    00169     //
    00170     //  fOffset
    00171     //      The current position in the parsed string.
    00172     //
    00173     //  fStringLen
    00174     //      The length of the string parsed (for convenience).
    00175     //
    00176     //  fString
    00177     //      The string to be parsed
    00178     //
    00179     //  fDelimeters
    00180     //      A set of delimeter characters
    00181     //
    00182     //  fTokens
    00183     //      A vector of the token strings
    00184     // -----------------------------------------------------------------------
    00185     int                 fOffset;
    00186     int                 fStringLen;
    00187     XMLCh*              fString;
    00188     XMLCh*              fDelimeters;
    00189     RefVectorOf<XMLCh>* fTokens;
    00190 };
    00191
    00192
    00193 // ---------------------------------------------------------------------------
    00194 //  XMLStringTokenizer: CleanUp methods
    00195 // ---------------------------------------------------------------------------
    00196 inline void XMLStringTokenizer::cleanUp() {
    00197
    00198     delete [] fString;
    00199     delete [] fDelimeters;
    00200     delete fTokens;
    00201 }
    00202
    00203 // ---------------------------------------------------------------------------
    00204 //  XMLStringTokenizer: Helper methods
    00205 // ---------------------------------------------------------------------------
    00206 inline bool XMLStringTokenizer::isDelimeter(const XMLCh ch) {
    00207
    00208     return XMLString::indexOf(fDelimeters, ch) == -1 ? false : true;
    00209 }
    00210
    00211
    00212 // ---------------------------------------------------------------------------
    00213 //  XMLStringTokenizer: Management methods
    00214 // ---------------------------------------------------------------------------
    00215 inline int XMLStringTokenizer::countTokens() {
    00216
    00217     if (fStringLen == 0)
    00218         return 0;
    00219
    00220     int  tokCount = 0;
    00221     bool inToken = false;
    00222
    00223     for (int i= fOffset; i< fStringLen; i++) {
    00224
    00225         if (isDelimeter(fString[i])) {
    00226
    00227             if (inToken) {
    00228                 inToken = false;
    00229             }
    00230
    00231             continue;
    00232         }
    00233
    00234         if (!inToken) {
    00235
    00236             tokCount++;
    00237             inToken = true;
    00238         }
    00239
    00240     } // end for
    00241
    00242     return tokCount;
    00243 }
    00244
    00245 #endif
    00246
    00250

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