domwriterimpl.cpp

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/*
 * Copyright 2002-2004 The Apache Software Foundation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*
 * $Id: DOMWriterImpl.cpp,v 1.55 2004/09/08 13:55:52 peiyongz Exp $
 * $Log: DOMWriterImpl.cpp,v $
 * Revision 1.55  2004/09/08 13:55:52  peiyongz
 * Apache License Version 2.0
 *
 * Revision 1.54  2004/07/06 15:16:57  amassari
 * Fix for jira#1238: DOMWriter was creating an XMLFormatter without propagating the memory manager
 *
 * Revision 1.53  2004/05/10 08:03:25  amassari
 * Performance: push a new map on the namespace stack only when an element has a xmlns attribute
 *
 * Revision 1.52  2004/04/01 22:05:32  peiyongz
 * invoke DOMException with Memory Manager
 *
 * Revision 1.51  2004/01/29 11:44:27  cargilld
 * Code cleanup changes to get rid of various compiler diagnostic messages.
 *
 * Revision 1.50  2004/01/20 23:23:57  peiyongz
 * patch to Bug#25751
 *
 * Revision 1.49  2004/01/13 20:47:42  knoaman
 * Remove unnecessary local static data
 *
 * Revision 1.48  2004/01/13 16:34:20  cargilld
 * Misc memory management changes.
 *
 * Revision 1.47  2003/12/17 00:18:33  cargilld
 * Update to memory management so that the static memory manager (one used to call Initialize) is only for static data.
 *
 * Revision 1.46  2003/11/24 19:52:22  neilg
 * fix a typo
 *
 * Revision 1.45  2003/11/24 12:27:57  gareth
 * added in support for xml-declaration feature.
 *
 * Revision 1.44  2003/11/24 11:10:58  gareth
 * Fix for bug 22917. Patch by Adam Heinz .
 *
 * Revision 1.43  2003/11/10 17:52:58  amassari
 * Fixed memory leak
 *
 * Revision 1.42  2003/10/01 16:32:37  neilg
 * improve handling of out of memory conditions, bug #23415.  Thanks to David Cargill.
 *
 * Revision 1.41  2003/08/14 16:31:13  gareth
 * Method added to allow serilization of custom nodes from derived classes.
 *
 * Revision 1.40  2003/08/12 12:46:57  gareth
 * Added serialization for attribute nodes. Patch by Caroline Rioux.
 *
 * Revision 1.39  2003/05/18 14:02:03  knoaman
 * Memory manager implementation: pass per instance manager.
 *
 * Revision 1.38  2003/05/16 21:36:55  knoaman
 * Memory manager implementation: Modify constructors to pass in the memory manager.
 *
 * Revision 1.37  2003/05/15 18:25:54  knoaman
 * Partial implementation of the configurable memory manager.
 *
 * Revision 1.36  2003/05/14 16:20:13  gareth
 * Fix to problem with multiple default namespace attributes being serialized. Patch by Alberto Massari.
 *
 * Revision 1.35  2003/05/12 16:08:11  gareth
 * fix to #18832. Corrected serilization with regards to namespace nodes. Patch by Alby Massari.
 *
 * Revision 1.34  2003/05/06 13:48:35  neilg
 * fix GCC compilation problem and incorrect #include
 *
 * Revision 1.33  2003/05/05 21:23:21  neilg
 * use of the new DOMNodeSPtr typedef and its friends to enable reference counting in
 * the DOMWriter implementation for applications that require it.
 *
 * Revision 1.32  2003/04/02 03:14:42  peiyongz
 * Bug#18594: DOMWriter does not recognize Document Fragment
 *
 * Revision 1.31  2003/03/16 05:42:04  peiyongz
 * Bug#17983 Formatter does not escape control characters
 *
 * Revision 1.30  2003/02/25 16:07:37  tng
 * [Bug 13493] Use const on static data in DOMWriterImpl.cpp.
 *
 * Revision 1.29  2003/01/28 18:31:47  peiyongz
 * Bug#13694: Allow Xerces to write the BOM to XML files
 *
 * Revision 1.28  2003/01/24 20:21:46  tng
 * DOMWriter: Call XMLFormatTarget::flush when done.
 *
 * Revision 1.27  2003/01/20 16:50:13  tng
 * DOMWriter fix:
 * 1. wrong wrong nested cdata message
 * 2. pretty format the cdata section
 * 3. do not increment error count if warning was issued
 *
 * Revision 1.26  2003/01/09 19:53:45  tng
 * [Bug 15372] DOMBuilder::parseFromURI ignores result of handleErrors.
 *
 * Revision 1.25  2002/12/10 21:01:32  tng
 * NLS: DOMWriter should use message loader to load message instead of using hardcoded static stirng
 *
 * Revision 1.24  2002/12/10 18:59:14  tng
 * pretty format print: consistent newline
 *
 * Revision 1.23  2002/12/10 13:34:07  tng
 * Pretty-format print: also indent PI/comment that appear inside the root element.
 *
 * Revision 1.22  2002/12/09 11:46:08  gareth
 * More pretty pretty print feature. Patch by Kevin King. Closes bug #13840.
 *
 * Revision 1.21  2002/12/02 23:08:09  peiyongz
 * fix to bug#14528: output n+1 cdatasection
 *
 * Revision 1.20  2002/11/13 21:51:22  peiyongz
 * fix to Bug#14528
 *
 * Revision 1.19  2002/11/04 15:07:35  tng
 * C++ Namespace Support.
 *
 * Revision 1.18  2002/10/03 18:13:38  peiyongz
 * Bug#12560 Use const in DOMWriter - patch from Duncan Stodart
 *                                                              ([e-mail] )
 *
 * Revision 1.17  2002/09/24 20:19:14  tng
 * Performance: use XMLString::equals instead of XMLString::compareString
 * and check for null string directly isntead of calling XMLString::stringLen
 *
 * Revision 1.16  2002/09/09 15:42:14  peiyongz
 * Patch to Bug#12369: invalid output from DOMWriter using MemBufFormatTarget
 *
 * Revision 1.15  2002/08/07 18:10:19  peiyongz
 * Fix to Bug#11534: Wrong CDATA Terminator in DOMWriterImpl
 *
 * Revision 1.14  2002/07/22 23:24:01  tng
 * DOM L3: writeToString should use the fFormatter to do the transcoding
 *
 * Revision 1.13  2002/07/16 15:19:42  peiyongz
 * check lenght of getEncoding()/getActualEncoding()
 *
 * Revision 1.12  2002/06/25 16:17:16  tng
 * DOM L3: add release()
 *
 * Revision 1.11  2002/06/21 19:33:12  peiyongz
 * support for feature split_cdata_section and entities revised.
 *
 * Revision 1.10  2002/06/18 15:35:25  peiyongz
 * Bug#9950: Compilation error on MSVC5, patch from [e-mail] (Peter A. Volchek)
 *
 * Revision 1.9  2002/06/17 19:45:58  peiyongz
 * optimization on fFeatures and featureId introduced
 *
 * Revision 1.8  2002/06/11 19:45:45  peiyongz
 * Notify application of the XMLFormatter creation failure
 *
 * Revision 1.7  2002/06/10 16:02:21  peiyongz
 * format-pretty-print partially supported
 * resolve encoding from DOMDocument Interface
 *
 * Revision 1.6  2002/06/06 20:58:37  tng
 * [Bug 9639] enum_mem in DOMError clashes with constant.
 *
 * Revision 1.5  2002/06/05 16:03:03  peiyongz
 * delete[] used.
 *
 * Revision 1.4  2002/06/03 22:35:54  peiyongz
 * constants changed
 *
 * Revision 1.3  2002/05/31 21:01:06  peiyongz
 * move printing of XMLDecl into the processNode().
 *
 * Revision 1.2  2002/05/29 21:31:50  knoaman
 * DOM L3 LS: DOMInputSource, DOMEntityResolver, DOMImplementationLS and DOMBuilder
 *
 * Revision 1.1  2002/05/28 22:39:39  peiyongz
 * DOM3 Save Interface: DOMWriter/DOMWriterFilter
 *
 */

#include "DOMWriterImpl.hpp"
#include "DOMErrorImpl.hpp"
#include "DOMLocatorImpl.hpp"
#include "DOMImplementationImpl.hpp"

#include <xercesc/framework/MemBufFormatTarget.hpp>

#include <xercesc/util/TransService.hpp>
#include <xercesc/util/TranscodingException.hpp>
#include <xercesc/util/Janitor.hpp>
#include <xercesc/util/XMLString.hpp>
#include <xercesc/util/XMLUniDefs.hpp>
#include <xercesc/util/XMLMsgLoader.hpp>
#include <xercesc/dom/StDOMNode.hpp>
#include <xercesc/util/OutOfMemoryException.hpp>

XERCES_CPP_NAMESPACE_BEGIN


// ---------------------------------------------------------------------------
//  Local const data
//
// ---------------------------------------------------------------------------

static const int INVALID_FEATURE_ID               = -1;
static const int CANONICAL_FORM_ID                = 0x0;
static const int DISCARD_DEFAULT_CONTENT_ID       = 0x1;
static const int ENTITIES_ID                      = 0x2;
static const int FORMAT_PRETTY_PRINT_ID           = 0x3;
static const int NORMALIZE_CHARACTERS_ID          = 0x4;
static const int SPLIT_CDATA_SECTIONS_ID          = 0x5;
static const int VALIDATION_ID                    = 0x6;
static const int WHITESPACE_IN_ELEMENT_CONTENT_ID = 0x7;
static const int BYTE_ORDER_MARK_ID               = 0x8;
static const int XML_DECLARATION                 = 0x9;

//    feature                      true                       false
// ================================================================================
//canonical-form                 [optional] Not Supported     [required] (default)
//discard-default-content        [required] (default)         [required]
//entity                         [required] (default)         [optional]
//format-pretty-print            [optional] Partially Supported [required] (default)
//normalize-characters           [optional] Not Supported     [required] (default)
//split-cdata-sections           [required] (default)         [required]
//validation                     [optional] Not Supported     [required] (default)
//whitespace-in-element-content  [requierd] (default)         [optional] Not Supported
//

//
// Each feature has 2 entries in this array,
// the first for "true",
// the second for "false".
//
static const bool  featuresSupported[] = {
    false, true,  // canonical-form
    true,  true,  // discard-default-content
    true,  true,  // entity
    true,  true,  // format-pretty-print
    false, true,  // normalize-characters
    true,  true,  // split-cdata-sections
    false, true,  // validation
    true,  false, // whitespace-in-element-content
    true,  true,   // byte-order-mark
    true,  true   // xml-declaration
};

// default end-of-line sequence
static const XMLCh  gEOLSeq[] =
{
    chLF, chNull
};

//UTF-8
static const XMLCh  gUTF8[] =
{
    chLatin_U, chLatin_T, chLatin_F, chDash, chDigit_8, chNull
};

//</
static const XMLCh  gEndElement[] =
{
    chOpenAngle, chForwardSlash, chNull
};

//?>
static const XMLCh  gEndPI[] =
{
    chQuestion, chCloseAngle, chNull
};

//<?
static const XMLCh  gStartPI[] =
{
    chOpenAngle, chQuestion, chNull
};

//<?xml version="
static const XMLCh  gXMLDecl_VersionInfo[] =
{
    chOpenAngle, chQuestion, chLatin_x,     chLatin_m,  chLatin_l,  chSpace,
    chLatin_v,   chLatin_e,  chLatin_r,     chLatin_s,  chLatin_i,  chLatin_o,
    chLatin_n,   chEqual,    chDoubleQuote, chNull
};

static const XMLCh gXMLDecl_ver10[] =
{
    chDigit_1, chPeriod, chDigit_0, chNull
};

//encoding="
static const XMLCh  gXMLDecl_EncodingDecl[] =
{
    chLatin_e,  chLatin_n,  chLatin_c,  chLatin_o,      chLatin_d, chLatin_i,
    chLatin_n,  chLatin_g,  chEqual,    chDoubleQuote,  chNull
};

//" standalone="
static const XMLCh  gXMLDecl_SDDecl[] =
{
    chLatin_s, chLatin_t, chLatin_a,   chLatin_n,    chLatin_d,   chLatin_a,
    chLatin_l, chLatin_o, chLatin_n,   chLatin_e,    chEqual,     chDoubleQuote,
    chNull
};

//"
static const XMLCh  gXMLDecl_separator[] =
{
    chDoubleQuote, chSpace, chNull
};

//?>
static const XMLCh  gXMLDecl_endtag[] =
{
    chQuestion, chCloseAngle,  chNull
};

//<![CDATA[
static const XMLCh  gStartCDATA[] =
{
    chOpenAngle, chBang,    chOpenSquare, chLatin_C, chLatin_D,
    chLatin_A,   chLatin_T, chLatin_A,    chOpenSquare, chNull
};

//]]>
static const XMLCh  gEndCDATA[] =
{
//    chCloseSquare, chCloseAngle, chCloseAngle, chNull  // test only: ]>>
      chCloseSquare, chCloseSquare, chCloseAngle, chNull
};

static const int offset = XMLString::stringLen(gEndCDATA);

//<!--
static const XMLCh  gStartComment[] =
{
    chOpenAngle, chBang, chDash, chDash, chNull
};

//-->
static const XMLCh  gEndComment[] =
{
    chDash, chDash, chCloseAngle, chNull
};

//<!DOCTYPE
static const XMLCh  gStartDoctype[] =
{
    chOpenAngle, chBang,    chLatin_D, chLatin_O, chLatin_C, chLatin_T,
    chLatin_Y,   chLatin_P, chLatin_E, chSpace,   chNull
};

//PUBLIC "
static const XMLCh  gPublic[] =
{
    chLatin_P, chLatin_U, chLatin_B,     chLatin_L, chLatin_I,
    chLatin_C, chSpace,   chDoubleQuote, chNull
};