00001 /* 00002 * The Apache Software License, Version 1.1 00003 * 00004 * Copyright (c) 1999-2000 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) 1999, 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 * $Log: XMLBuffer.hpp,v $ 00059 * Revision 1.1 2002/05/11 20:01:11 bhavani 00060 * CR#CR062582# adding xercesc 1.7 file 00061 * 00062 * Revision 1.1.1.1 2002/02/01 22:21:51 peiyongz 00063 * sane_include 00064 * 00065 * Revision 1.6 2001/06/27 20:29:09 tng 00066 * [Bug 2365] Huge performance problem with the parser in XMLScanner::sendCharData() . By David Bertoni. 00067 * 00068 * Revision 1.5 2000/03/02 19:54:24 roddey 00069 * This checkin includes many changes done while waiting for the 00070 * 1.1.0 code to be finished. I can't list them all here, but a list is 00071 * available elsewhere. 00072 * 00073 * Revision 1.4 2000/02/24 20:00:22 abagchi 00074 * Swat for removing Log from API docs 00075 * 00076 * Revision 1.3 2000/02/15 01:21:30 roddey 00077 * Some initial documentation improvements. More to come... 00078 * 00079 * Revision 1.2 2000/02/06 07:47:47 rahulj 00080 * Year 2K copyright swat. 00081 * 00082 * Revision 1.1.1.1 1999/11/09 01:08:29 twl 00083 * Initial checkin 00084 * 00085 * Revision 1.2 1999/11/08 20:44:36 rahul 00086 * Swat for adding in Product name and CVS comment log variable. 00087 * 00088 */ 00089 00090 00091 #if !defined(XMLBUFFER_HPP) 00092 #define XMLBUFFER_HPP 00093 00094 #include <xercesc/util/XercesDefs.hpp> 00095 00106 class XMLPARSER_EXPORT XMLBuffer 00107 { 00108 public : 00109 // ----------------------------------------------------------------------- 00110 // Constructors and Destructor 00111 // ----------------------------------------------------------------------- 00112 00115 XMLBuffer(int capacity = 1023) : 00116 00117 fBuffer(0) 00118 , fIndex(0) 00119 , fCapacity(capacity) 00120 , fUsed(false) 00121 { 00122 // Buffer is one larger than capacity, to allow for zero term 00123 fBuffer = new XMLCh[fCapacity+1]; 00124 00125 // Keep it null terminated 00126 fBuffer[0] = XMLCh(0); 00127 } 00129 00132 ~XMLBuffer() 00133 { 00134 delete [] fBuffer; 00135 } 00137 00138 // ----------------------------------------------------------------------- 00139 // Buffer Management 00140 // ----------------------------------------------------------------------- 00141 void append(const XMLCh toAppend) 00142 { 00143 if (fIndex == fCapacity) 00144 expand(); 00145 00146 // Put in char and bump the index 00147 fBuffer[fIndex++] = toAppend; 00148 } 00149 00150 void append 00151 ( 00152 const XMLCh* const chars 00153 , const unsigned int count = 0 00154 ); 00155 00156 const XMLCh* getRawBuffer() const 00157 { 00158 fBuffer[fIndex] = 0; 00159 return fBuffer; 00160 } 00161 00162 XMLCh* getRawBuffer() 00163 { 00164 fBuffer[fIndex] = 0; 00165 return fBuffer; 00166 } 00167 00168 void reset() 00169 { 00170 fIndex = 0; 00171 fBuffer[0] = 0; 00172 } 00173 00174 void set 00175 ( 00176 const XMLCh* const chars 00177 , const unsigned int count = 0 00178 ); 00179 00180 00181 // ----------------------------------------------------------------------- 00182 // Getters 00183 // ----------------------------------------------------------------------- 00184 bool getInUse() 00185 { 00186 return fUsed; 00187 } 00188 00189 unsigned int getLen() const 00190 { 00191 return fIndex; 00192 } 00193 00194 bool isEmpty() 00195 { 00196 return (fIndex == 0); 00197 } 00198 00199 00200 // ----------------------------------------------------------------------- 00201 // Setters 00202 // ----------------------------------------------------------------------- 00203 void setInUse(const bool newValue) 00204 { 00205 fUsed = newValue; 00206 } 00207 00208 00209 private : 00210 // ----------------------------------------------------------------------- 00211 // Declare our friends 00212 // ----------------------------------------------------------------------- 00213 friend class XMLBufBid; 00214 00215 00216 // ----------------------------------------------------------------------- 00217 // Private helpers 00218 // ----------------------------------------------------------------------- 00219 void expand(); 00220 void insureCapacity(const unsigned int extraNeeded); 00221 00222 00223 // ----------------------------------------------------------------------- 00224 // Private data members 00225 // 00226 // fBuffer 00227 // The pointer to the buffer data. Its grown as needed. Its always 00228 // one larger than fCapacity, to leave room for the null terminator. 00229 // 00230 // fIndex 00231 // The current index into the buffer, as characters are appended 00232 // to it. If its zero, then the buffer is empty. 00233 // 00234 // fCapacity 00235 // The current capacity of the buffer. Its actually always one 00236 // larger, to leave room for the null terminator. 00237 // 00238 // fUsed 00239 // Indicates whether this buffer is in use or not. 00240 // ----------------------------------------------------------------------- 00241 XMLCh* fBuffer; 00242 unsigned int fIndex; 00243 unsigned int fCapacity; 00244 bool fUsed; 00245 }; 00246 00247 #endif