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Posted to commits@xalan.apache.org by au...@apache.org on 2001/01/31 15:34:54 UTC

cvs commit: xml-xalan/c/src/XALANTRANSFORMER XalanCAPI.h

auriemma    01/01/31 06:34:54

  Added:       c/src/XALANTRANSFORMER XalanCAPI.h
  Log:
  New file used to implement simple C interface for the class XalanTransformer.
  
  Revision  Changes    Path
  1.1                  xml-xalan/c/src/XALANTRANSFORMER/XalanCAPI.h
  
  Index: XalanCAPI.h
  ===================================================================
  /*
   * The Apache Software License, Version 1.1
   *
   *
   * Copyright (c) 2000 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 "Xalan" 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/>.
   */
  #if !defined(XALAN_CAPI_HEADER_GUARD_1357924680)
  #define XALAN_CAPI_HEADER_GUARD_1357924680
  
  
  
  #include <XalanTransformer/XalanTransformerDefinitions.hpp>
  
  
  
  /**
   * This is a simple C interface for the class XalanTransformer. It's 
   * the responsibility of the caller to call initialize and terminate 
   * before creating and after deleting any XalanTransformer instances 
   * respectively. As well, releasing any memory allocated from calling   
   * XalanTransformToData by calling XalanFreeData.
   */
  #if defined(__cplusplus)
  extern "C"
  {
  #endif
  
  	/**
  	 * Handle use to store the address of XalanTransformer instance.
  	 */
  	typedef void* XalanHandle;
  
  	/**
  	 * Callback function passed to XalanTransformToHandler. 
  	 * Caller is responsible for streaming or coping data to a user  
  	 * allocated buffer. Called should not attempt to write to or  
  	 * free this data. Xalan will reuse the same buffer and free it 
  	 * upon termination.
  	 *
  	 * The callback should return the number of bytes written and this 
  	 * number should match the length received. Otherwise, the function 
  	 * XalanTransformToHandler will terminate and return a error status.	
  	 *
  	 * static unsigned long xalanOutputHandler(const void* data, unsigned long length, const void *handle);
  	 *
  	 * @param data		a block of data
  	 * @param length	length of block
  	 * @param handle	handle of XalanTransformer instance.
  	 * @return number of bytes written
  	 */
  	typedef unsigned long (*XalanOutputHandlerType) (const void*, unsigned long, const void*);
  
  
  	/**
  	 * Initialize Xerces and Xalan.
  	 * Should be called only once before creating any
  	 * instances of XalanTransformer.
  	 */
  	XALAN_TRANSFORMER_EXPORT_FUNCTION(void)
  	XalanInitialize();
  
  	/**
  	 * Terminate Xalan and Xerces.
  	 * Should be called only once after deleting all
  	 * instances of XalanTransformer.
  	 */
  	XALAN_TRANSFORMER_EXPORT_FUNCTION(void)
  	XalanTerminate();
  
  	/**
  	 * Create a XalanTransformer instance.
  	 *
  	 * @return pointer to current handler
  	 */
  	XALAN_TRANSFORMER_EXPORT_FUNCTION(XalanHandle)
  	CreateXalanTransformer();
  
  	/**
  	 * Delete a XalanTransformer instance.
  	 * 
  	 * @param theXalanHandle The XalanTransformer to destroy.
  	 */
  	XALAN_TRANSFORMER_EXPORT_FUNCTION(void)
  	DeleteXalanTransformer(XalanHandle*	theXalanHandle);
  
  	/**
  	 * Transform the XML source tree to the given result file.
  	 * The processor will process the input file, the stylesheet file,
  	 * and transform to new output file.
  	 *
  	 * @param theXMLFileName	filename of XML input source
  	 * @param theXSLFileName	filename of stylesheet source
  	 * @param theOutFileName	filename of output source
  	 * @param theXalanHandle	handle of XalanTransformer instance.
  	 * @return status			0 for success and 1 for failure 
  	 */
  	XALAN_TRANSFORMER_EXPORT_FUNCTION(int)
  	XalanTransformToFile(
  				const char*				theXMLFileName, 
  				const char*				theXSLFileName,
  				const char*				theOutFileName,
  				XalanHandle				theXalanHandle);
  
  	/**
  	 * Transform the XML source tree to a dynamically allocated buffer.
  	 * The processor will process the input file, the stylesheet file,
  	 * and assign the address of dynamically allocated result to a 
  	 * user defined pointer. The user must call XalanFreeData with the  
  	 * address of this pointer.
  	 *
  	 * @param theXMLFileName	filename of XML input source
  	 * @param theXSLFileName	filename of stylesheet source
  	 * @param theOutFileName	filename of output source
  	 * @param theXalanHandle	handle of XalanTransformer instance.
  	 * @return status			0 for success and 1 for failure 
  	 */
  	XALAN_TRANSFORMER_EXPORT_FUNCTION(int) 
  	XalanTransformToData(
  				const char*				theXMLFileName, 
  				const char*				theXSLFileName,
  				char**					theOutput,
  				XalanHandle				theXalanHandle);
  
  	/**
  	 * Free memory allocated as a result of calling
  	 * XalanTransformToData.
  	 * 
  	 * @param theStream The address of character data.
  	 */
  	XALAN_TRANSFORMER_EXPORT_FUNCTION(void)
  	XalanFreeData(char**				theStream);
  
  	/**
  	 * Transform the XML source tree to the address of a callback.
  	 * The processor will process the input file, the stylesheet file,
  	 * and transform to output to a callback function in allocated 
  	 * blocks. Xalan will release any memory allocated upon 
  	 * termination. Data passed to the callback is not guaranteed to 
  	 * be null terminated. - See XalanOutputHandlerType for more details.
  	 * 
  	 * @param theXMLFileName	filename of XML input source
  	 * @param theXSLFileName	filename of stylesheet source
  	 * @param theXalanHandle	handle of XalanTransformer instance.
  	 * @param theOutputHandle	void pointer passed through to callback.
  	 * @param theOutputHandler	address of a user defined (callback) function.
  	 * @return					0 for success and 1 for failure 
  	 */
  	XALAN_TRANSFORMER_EXPORT_FUNCTION(int) 
  	XalanTransformToHandler(
  				const char*				theXMLFileName, 
  				const char*				theXSLFileName,
  				XalanHandle				theXalanHandle,
  				const void*				theOutputHandle, 
  				XalanOutputHandlerType	theOutputHandler);
  
  #if defined(__cplusplus)
  }
  #endif
  
  #endif	// XALAN_CAPI_HEADER_GUARD_1357924680