| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 1999 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xerces" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache\@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation, and was |
| * originally based on software copyright (c) 1999, International |
| * Business Machines, Inc., http://www.ibm.com . For more information |
| * on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| |
| /** |
| * This sample program illustrates how one can use a memory buffer as the |
| * input to parser. The memory buffer contains raw bytes representing XML |
| * statements. |
| * |
| * Look at the API documentation for 'MemBufInputSource' for more information |
| * on parameters to the constructor. |
| * |
| * $Log$ |
| * Revision 1.2 1999/11/20 01:09:55 rahulj |
| * Fixed usage message. |
| * |
| * Revision 1.1.1.1 1999/11/09 01:09:49 twl |
| * Initial checkin |
| * |
| * Revision 1.7 1999/11/08 20:43:36 rahul |
| * Swat for adding in Product name and CVS comment log variable. |
| * |
| */ |
| |
| |
| // --------------------------------------------------------------------------- |
| // Includes |
| // --------------------------------------------------------------------------- |
| #include <parsers/SAXParser.hpp> |
| #include <internal/MemBufInputSource.hpp> |
| #include "MemParse.hpp" |
| |
| |
| // --------------------------------------------------------------------------- |
| // Local const data |
| // |
| // gXMLInMemBuf |
| // Defines the memory buffer contents here which parsed by the XML |
| // parser. This is the cheap way to do it, instead of reading it from |
| // somewhere. For this demo, its fine. |
| // |
| // NOTE: This will NOT work if your compiler's default char type is not |
| // ASCII, since we indicate in the encoding that its ascii. |
| // |
| // gMemBufId |
| // A simple name to give as the system id for the memory buffer. This |
| // just for indentification purposes in case of errors. Its not a real |
| // system id (and the parser knows that.) |
| // --------------------------------------------------------------------------- |
| static const char* gXMLInMemBuf = |
| "\ |
| <?xml version='1.0' encoding='ascii'?>\n\ |
| <!DOCTYPE company [\n\ |
| <!ELEMENT company (product,category,developedAt)>\n\ |
| <!ELEMENT product (#PCDATA)>\n\ |
| <!ELEMENT category (#PCDATA)>\n\ |
| <!ATTLIST category idea CDATA #IMPLIED>\n\ |
| <!ELEMENT developedAt (#PCDATA)>\n\ |
| ]>\n\n\ |
| <company>\n\ |
| <product>XML4C</product>\n\ |
| <category idea='great'>XML Parsing Tools</category>\n\ |
| <developedAt>\n\ |
| IBM Center for Java Technology, Silicon Valley, Cupertino, CA\n\ |
| </developedAt>\n\ |
| </company>\ |
| "; |
| |
| static const char* gMemBufId = "prodInfo"; |
| |
| |
| |
| // --------------------------------------------------------------------------- |
| // Local helper methods |
| // --------------------------------------------------------------------------- |
| void usage() |
| { |
| cout << "\nUsage:\n" |
| << " MemParse [-v]\n" |
| << "This program uses the SAX Parser to parse a memory buffer\n" |
| << "containing XML statements, and reports the number of\n" |
| << "elements and attributes found.\n" |
| << "\nOptions:\n" |
| << " -v Do a validating parse. Default is non-validating.\n\n" |
| << endl; |
| } |
| |
| |
| // --------------------------------------------------------------------------- |
| // Program entry point |
| // --------------------------------------------------------------------------- |
| int main(int argc, char* args[]) |
| { |
| // Initialize the XML4C2 system |
| try |
| { |
| XMLPlatformUtils::Initialize(); |
| } |
| catch (const XMLException& toCatch) |
| { |
| cerr << "Error during initialization! Message:\n" |
| << StrX(toCatch.getMessage()) << endl; |
| return 1; |
| } |
| |
| const char* options = args[1]; |
| bool doValidation = false; |
| |
| if (argc > 1) |
| { |
| // Check for some special cases values of the parameter |
| if (!strncmp(options, "-?", 2)) |
| { |
| usage(); |
| return 0; |
| } |
| else if (!strncmp(options, "-v", 3)) |
| { |
| doValidation = true; |
| } |
| else if (options[0] == '-') |
| { |
| usage(); |
| return -1; |
| } |
| } |
| |
| // |
| // Create a SAX parser object. Then, according to what we were told on |
| // the command line, set it to validate or not. |
| // |
| SAXParser parser; |
| parser.setDoValidation(doValidation); |
| |
| // |
| // Create our SAX handler object and install it on the parser, as the |
| // document and error handlers. |
| // |
| MemParseHandlers handler; |
| parser.setDocumentHandler(&handler); |
| parser.setErrorHandler(&handler); |
| |
| // |
| // Create MemBufferInputSource from the buffer containing the XML |
| // statements. |
| // |
| // NOTE: We are using strlen() here, since we know that the chars in |
| // our hard coded buffer are single byte chars!!! The parameter wants |
| // the number of BYTES, not chars, so when you create a memory buffer |
| // give it the byte size (which just happens to be the same here.) |
| // |
| MemBufInputSource* memBufIS = new MemBufInputSource |
| ( |
| (const XMLByte*)gXMLInMemBuf |
| , strlen(gXMLInMemBuf) |
| , gMemBufId |
| , false |
| ); |
| |
| // |
| // Get the starting time and kick off the parse of the indicated |
| // file. Catch any exceptions that might propogate out of it. |
| // |
| unsigned long duration; |
| try |
| { |
| const unsigned long startMillis = XMLPlatformUtils::getCurrentMillis(); |
| parser.parse(*memBufIS); |
| const unsigned long endMillis = XMLPlatformUtils::getCurrentMillis(); |
| duration = endMillis - startMillis; |
| } |
| |
| catch (const XMLException& e) |
| { |
| cerr << "\nError during parsing memory stream:\n" |
| << "Exception message is: \n" |
| << StrX(e.getMessage()) << "\n" << endl; |
| return -1; |
| } |
| |
| // Print out the stats that we collected and time taken. |
| cout << "\nFinished parsing the memory buffer containing the following " |
| << "XML statements:\n\n" |
| << gXMLInMemBuf |
| << "\n\n\n" |
| << "Parsing took " << duration << " ms (" |
| << handler.getElementCount() << " elements, " |
| << handler.getAttrCount() << " attributes, " |
| << handler.getSpaceCount() << " spaces, " |
| << handler.getCharacterCount() << " characters).\n" << endl; |
| |
| if (doValidation == false) |
| { |
| cout << "You can also invoke it with '-v' parameter to turn " |
| << "on validation.\n"; |
| } |
| |
| return 0; |
| } |
| |
| |
| |
| // --------------------------------------------------------------------------- |
| // StrX: Private helper methods |
| // --------------------------------------------------------------------------- |
| void StrX::transcode(const XMLCh* const toTranscode, const unsigned int len) |
| { |
| // Short circuit if its a null pointer |
| if (!toTranscode || (!toTranscode[0])) |
| { |
| fLocalForm = new char[1]; |
| fLocalForm[0] = 0; |
| return; |
| } |
| |
| // See if our XMLCh and wchar_t as the same on this platform |
| const bool isSameSize = (sizeof(XMLCh) == sizeof(wchar_t)); |
| |
| // |
| // Get the actual number of chars. If the passed len is zero, its null |
| // terminated. Else we have to use the len. |
| // |
| wchar_t realLen = (wchar_t)len; |
| if (!realLen) |
| { |
| // |
| // We cannot just assume we can use wcslen() because we don't know |
| // if our XMLCh is the same as wchar_t on this platform. |
| // |
| const XMLCh* tmpPtr = toTranscode; |
| while (*(tmpPtr++)) |
| realLen++; |
| } |
| |
| // |
| // If either the passed length was non-zero or our char sizes are not |
| // same, we have to use a temp buffer. Since this is common in these |
| // samples, we just do it anyway. |
| // |
| wchar_t* tmpSource = new wchar_t[realLen + 1]; |
| if (isSameSize) |
| { |
| memcpy(tmpSource, toTranscode, realLen * sizeof(wchar_t)); |
| } |
| else |
| { |
| for (unsigned int index = 0; index < realLen; index++) |
| tmpSource[index] = (wchar_t)toTranscode[index]; |
| } |
| tmpSource[realLen] = 0; |
| |
| // See now many chars we need to transcode this guy |
| const unsigned int targetLen = ::wcstombs(0, tmpSource, 0); |
| |
| // Allocate out storage member |
| fLocalForm = new char[targetLen + 1]; |
| |
| // |
| // And transcode our temp source buffer to the local buffer. Cap it |
| // off since the converter won't do it (because the null is beyond |
| // where the target will fill up.) |
| // |
| ::wcstombs(fLocalForm, tmpSource, targetLen); |
| fLocalForm[targetLen] = 0; |
| |
| // Don't forget to delete our temp buffer |
| delete [] tmpSource; |
| } |
