1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you 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 .
 */

#include <sal/config.h>

#include <unoservices.hxx>
#include <xml_import.hxx>

#include <cppuhelper/factory.hxx>
#include <cppuhelper/implementationentry.hxx>
#include <cppuhelper/implbase.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <com/sun/star/container/NoSuchElementException.hpp>
#include <com/sun/star/xml/input/XAttributes.hpp>
#include <com/sun/star/lang/XInitialization.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <sal/log.hxx>
#include <rtl/ref.hxx>

#include <memory>
#include <unordered_map>
#include <vector>

using namespace ::osl;
using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;

namespace xmlscript
{

const sal_Int32 UID_UNKNOWN = -1;

Sequence< OUString > getSupportedServiceNames_DocumentHandlerImpl()
{
    return Sequence< OUString > { "com.sun.star.xml.input.SaxDocumentHandler" };
}

OUString getImplementationName_DocumentHandlerImpl()
{
    return "com.sun.star.comp.xml.input.SaxDocumentHandler";
}

typedef std::unordered_map< OUString, sal_Int32 > t_OUString2LongMap;

struct PrefixEntry
{
    ::std::vector< sal_Int32 > m_Uids;

    PrefixEntry()
        { m_Uids.reserve( 4 ); }
};

typedef std::unordered_map<
    OUString, std::unique_ptr<PrefixEntry> > t_OUString2PrefixMap;

struct ElementEntry
{
    Reference< xml::input::XElement > m_xElement;
    ::std::vector< OUString > m_prefixes;

    ElementEntry()
        { m_prefixes.reserve( 2 ); }
};

class ExtendedAttributes;

class MGuard
{
    Mutex * m_pMutex;
public:
    explicit MGuard( std::unique_ptr<Mutex> const & pMutex )
        : m_pMutex( pMutex.get() )
        { if (m_pMutex) m_pMutex->acquire(); }
    ~MGuard() throw ()
        { if (m_pMutex) m_pMutex->release(); }
};

class DocumentHandlerImpl :
    public ::cppu::WeakImplHelper< xml::sax::XDocumentHandler,
                                    xml::input::XNamespaceMapping,
                                    lang::XInitialization,
                                    css::lang::XServiceInfo >
{
    friend class ExtendedAttributes;

    Reference< xml::input::XRoot > m_xRoot;

    t_OUString2LongMap m_URI2Uid;
    sal_Int32 m_uid_count;

    sal_Int32 m_nLastURI_lookup;
    OUString m_aLastURI_lookup;

    t_OUString2PrefixMap m_prefixes;
    sal_Int32 m_nLastPrefix_lookup;
    OUString m_aLastPrefix_lookup;

    std::vector< ElementEntry > m_elements;
    sal_Int32 m_nSkipElements;

    std::unique_ptr<Mutex> m_pMutex;

    inline Reference< xml::input::XElement > getCurrentElement() const;

    inline sal_Int32 getUidByURI( OUString const & rURI );
    inline sal_Int32 getUidByPrefix( OUString const & rPrefix );

    inline void pushPrefix(
        OUString const & rPrefix, OUString const & rURI );
    inline void popPrefix( OUString const & rPrefix );

    inline void getElementName(
        OUString const & rQName, sal_Int32 * pUid, OUString * pLocalName );

public:
    DocumentHandlerImpl(
        Reference< xml::input::XRoot > const & xRoot,
        bool bSingleThreadedUse );

    // XServiceInfo
    virtual OUString SAL_CALL getImplementationName() override;
    virtual sal_Bool SAL_CALL supportsService(
        OUString const & servicename ) override;
    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() override;

    // XInitialization
    virtual void SAL_CALL initialize(
        Sequence< Any > const & arguments ) override;

    // XDocumentHandler
    virtual void SAL_CALL startDocument() override;
    virtual void SAL_CALL endDocument() override;
    virtual void SAL_CALL startElement(
        OUString const & rQElementName,
        Reference< xml::sax::XAttributeList > const & xAttribs ) override;
    virtual void SAL_CALL endElement(
        OUString const & rQElementName ) override;
    virtual void SAL_CALL characters(
        OUString const & rChars ) override;
    virtual void SAL_CALL ignorableWhitespace(
        OUString const & rWhitespaces ) override;
    virtual void SAL_CALL processingInstruction(
        OUString const & rTarget, OUString const & rData ) override;
    virtual void SAL_CALL setDocumentLocator(
        Reference< xml::sax::XLocator > const & xLocator ) override;

    // XNamespaceMapping
    virtual sal_Int32 SAL_CALL getUidByUri( OUString const & Uri ) override;
    virtual OUString SAL_CALL getUriByUid( sal_Int32 Uid ) override;
};

static OUString const g_sXMLNS_PREFIX_UNKNOWN( "<<< unknown prefix >>>" );
static OUString const g_sXMLNS( "xmlns" );


DocumentHandlerImpl::DocumentHandlerImpl(
    Reference< xml::input::XRoot > const & xRoot,
    bool bSingleThreadedUse )
    : m_xRoot( xRoot ),
      m_uid_count( 0 ),
      m_nLastURI_lookup( UID_UNKNOWN ),
      m_aLastURI_lookup( "<<< unknown URI >>>" ),
      m_nLastPrefix_lookup( UID_UNKNOWN ),
      m_aLastPrefix_lookup( "<<< unknown URI >>>" ),
      m_nSkipElements( 0 )
{
    m_elements.reserve( 10 );

    if (! bSingleThreadedUse)
        m_pMutex.reset(new Mutex);
}

inline Reference< xml::input::XElement >
DocumentHandlerImpl::getCurrentElement() const
{
    MGuard aGuard( m_pMutex );
    if (m_elements.empty())
        return Reference< xml::input::XElement >();
    else
        return m_elements.back().m_xElement;
}

inline sal_Int32 DocumentHandlerImpl::getUidByURI( OUString const & rURI )
{
    MGuard guard( m_pMutex );
    if (m_nLastURI_lookup == UID_UNKNOWN || m_aLastURI_lookup != rURI)
    {
        t_OUString2LongMap::const_iterator iFind( m_URI2Uid.find( rURI ) );
        if (iFind != m_URI2Uid.end()) // id found
        {
            m_nLastURI_lookup = iFind->second;
            m_aLastURI_lookup = rURI;
        }
        else
        {
            m_nLastURI_lookup = m_uid_count;
            ++m_uid_count;
            m_URI2Uid[ rURI ] = m_nLastURI_lookup;
            m_aLastURI_lookup = rURI;
        }
    }
    return m_nLastURI_lookup;
}

inline sal_Int32 DocumentHandlerImpl::getUidByPrefix(
    OUString const & rPrefix )
{
    // commonly the last added prefix is used often for several tags...
    // good guess
    if (m_nLastPrefix_lookup == UID_UNKNOWN || m_aLastPrefix_lookup != rPrefix)
    {
        t_OUString2PrefixMap::const_iterator iFind(
            m_prefixes.find( rPrefix ) );
        if (iFind != m_prefixes.end())
        {
            const PrefixEntry & rPrefixEntry = *iFind->second;
            SAL_WARN_IF( rPrefixEntry.m_Uids.empty(), "xmlscript.xmlhelper", "rPrefixEntry.m_Uids is empty" );
            m_nLastPrefix_lookup = rPrefixEntry.m_Uids.back();
            m_aLastPrefix_lookup = rPrefix;
        }
        else
        {
            m_nLastPrefix_lookup = UID_UNKNOWN;
            m_aLastPrefix_lookup = g_sXMLNS_PREFIX_UNKNOWN;
        }
    }
    return m_nLastPrefix_lookup;
}

inline void DocumentHandlerImpl::pushPrefix(
    OUString const & rPrefix, OUString const & rURI )
{
    // lookup id for URI
    sal_Int32 nUid = getUidByURI( rURI );

    // mark prefix with id
    t_OUString2PrefixMap::const_iterator iFind( m_prefixes.find( rPrefix ) );
    if (iFind == m_prefixes.end()) // unused prefix
    {
        PrefixEntry * pEntry = new PrefixEntry();
        pEntry->m_Uids.push_back( nUid ); // latest id for prefix
        m_prefixes[rPrefix].reset(pEntry);
    }
    else
    {
        PrefixEntry& rEntry = *iFind->second;
        SAL_WARN_IF(rEntry.m_Uids.empty(), "xmlscript.xmlhelper", "pEntry->m_Uids is empty");
        rEntry.m_Uids.push_back(nUid);
    }

    m_aLastPrefix_lookup = rPrefix;
    m_nLastPrefix_lookup = nUid;
}

inline void DocumentHandlerImpl::popPrefix(
    OUString const & rPrefix )
{
    t_OUString2PrefixMap::iterator iFind( m_prefixes.find( rPrefix ) );
    if (iFind != m_prefixes.end()) // unused prefix
    {
        PrefixEntry& rEntry = *iFind->second;
        rEntry.m_Uids.pop_back(); // pop last id for prefix
        if (rEntry.m_Uids.empty()) // erase prefix key
        {
            m_prefixes.erase(iFind);
        }
    }

    m_nLastPrefix_lookup = UID_UNKNOWN;
    m_aLastPrefix_lookup = g_sXMLNS_PREFIX_UNKNOWN;
}

inline void DocumentHandlerImpl::getElementName(
    OUString const & rQName, sal_Int32 * pUid, OUString * pLocalName )
{
    sal_Int32 nColonPos = rQName.indexOf( ':' );
    *pLocalName = (nColonPos >= 0 ? rQName.copy( nColonPos +1 ) : rQName);
    *pUid = getUidByPrefix(
        nColonPos >= 0 ? rQName.copy( 0, nColonPos ) : OUString() );
}

class ExtendedAttributes :
    public ::cppu::WeakImplHelper< xml::input::XAttributes >
{
    sal_Int32 const m_nAttributes;
    std::unique_ptr<sal_Int32[]> m_pUids;
    std::unique_ptr<OUString[]>  m_pLocalNames;
    std::unique_ptr<OUString[]>  m_pQNames;
    std::unique_ptr<OUString[]>  m_pValues;

public:
    inline ExtendedAttributes(
        sal_Int32 nAttributes,
        std::unique_ptr<sal_Int32[]> pUids,
        std::unique_ptr<OUString[]> pLocalNames,
        std::unique_ptr<OUString[]> pQNames,
        Reference< xml::sax::XAttributeList > const & xAttributeList );

    // XAttributes
    virtual sal_Int32 SAL_CALL getLength() override;
    virtual sal_Int32 SAL_CALL getIndexByQName(
        OUString const & rQName ) override;
    virtual sal_Int32 SAL_CALL getIndexByUidName(
        sal_Int32 nUid, OUString const & rLocalName ) override;
    virtual OUString SAL_CALL getQNameByIndex(
        sal_Int32 nIndex ) override;
    virtual sal_Int32 SAL_CALL getUidByIndex(
        sal_Int32 nIndex ) override;
    virtual OUString SAL_CALL getLocalNameByIndex(
        sal_Int32 nIndex ) override;
    virtual OUString SAL_CALL getValueByIndex(
        sal_Int32 nIndex ) override;
    virtual OUString SAL_CALL getValueByUidName(
        sal_Int32 nUid, OUString const & rLocalName ) override;
    virtual OUString SAL_CALL getTypeByIndex(
        sal_Int32 nIndex ) override;
};

inline ExtendedAttributes::ExtendedAttributes(
    sal_Int32 nAttributes,
    std::unique_ptr<sal_Int32[]> pUids,
    std::unique_ptr<OUString[]> pLocalNames, std::unique_ptr<OUString[]> pQNames,
    Reference< xml::sax::XAttributeList > const & xAttributeList )
    : m_nAttributes( nAttributes )
    , m_pUids( std::move(pUids) )
    , m_pLocalNames( std::move(pLocalNames) )
    , m_pQNames( std::move(pQNames) )
    , m_pValues( new OUString[ nAttributes ] )
{
    for ( sal_Int32 nPos = 0; nPos < nAttributes; ++nPos )
    {
        m_pValues[ nPos ] = xAttributeList->getValueByIndex( nPos );
    }
}

// XServiceInfo

OUString DocumentHandlerImpl::getImplementationName()
{
    return getImplementationName_DocumentHandlerImpl();
}

sal_Bool DocumentHandlerImpl::supportsService( OUString const & servicename )
{
    return cppu::supportsService(this, servicename);
}

Sequence< OUString > DocumentHandlerImpl::getSupportedServiceNames()
{
    return getSupportedServiceNames_DocumentHandlerImpl();
}

// XInitialization

void DocumentHandlerImpl::initialize(
    Sequence< Any > const & arguments )
{
    MGuard guard( m_pMutex );
    Reference< xml::input::XRoot > xRoot;
    if (arguments.getLength() != 1 ||
        !(arguments[ 0 ] >>= xRoot) ||
        !xRoot.is())
    {
        throw RuntimeException( "missing root instance!" );
    }
    m_xRoot = xRoot;
}

// XNamespaceMapping

sal_Int32 DocumentHandlerImpl::getUidByUri( OUString const & Uri )
{
    sal_Int32 uid = getUidByURI( Uri );
    SAL_WARN_IF( uid == UID_UNKNOWN, "xmlscript.xmlhelper", "uid UNKNOWN");
    return uid;
}

OUString DocumentHandlerImpl::getUriByUid( sal_Int32 Uid )<--- The function 'getUriByUid' is never used.
{
    MGuard guard( m_pMutex );
    for (const auto& rURIUid : m_URI2Uid)
    {
        if (rURIUid.second == Uid)<--- Consider using std::find_if algorithm instead of a raw loop.
            return rURIUid.first;
    }
    throw container::NoSuchElementException( "no such xmlns uid!" , static_cast< OWeakObject * >(this) );
}

// XDocumentHandler

void DocumentHandlerImpl::startDocument()
{
    m_xRoot->startDocument( static_cast< xml::input::XNamespaceMapping * >( this ) );
}

void DocumentHandlerImpl::endDocument()
{
    m_xRoot->endDocument();
}

void DocumentHandlerImpl::startElement(
    OUString const & rQElementName,
    Reference< xml::sax::XAttributeList > const & xAttribs )
{
    Reference< xml::input::XElement > xCurrentElement;
    Reference< xml::input::XAttributes > xAttributes;
    sal_Int32 nUid;
    OUString aLocalName;
    ElementEntry elementEntry;

    { // guard start:
    MGuard aGuard( m_pMutex );
    // currently skipping elements and waiting for end tags?
    if (m_nSkipElements > 0)
    {
        ++m_nSkipElements; // wait for another end tag
        SAL_INFO("xmlscript.xmlhelper", " no context given on createChildElement() => ignoring element \"" << rQElementName << "\" ...");
        return;
    }

    sal_Int16 nAttribs = xAttribs->getLength();

    // save all namespace ids
    std::unique_ptr<sal_Int32[]> pUids(new sal_Int32[ nAttribs ]);
    std::unique_ptr<OUString[]> pPrefixes(new OUString[ nAttribs ]);
    std::unique_ptr<OUString[]> pLocalNames(new OUString[ nAttribs ]);
    std::unique_ptr<OUString[]> pQNames(new OUString[ nAttribs ]);

    // first recognize all xmlns attributes
    sal_Int16 nPos;
    for ( nPos = 0; nPos < nAttribs; ++nPos )
    {
        // mark attribute to be collected further
        // on with attribute's uid and current prefix
        pUids[ nPos ] = 0; // modified

        pQNames[ nPos ] = xAttribs->getNameByIndex( nPos );
        OUString const & rQAttributeName = pQNames[ nPos ];

        if (rQAttributeName.startsWith( g_sXMLNS ))
        {
            if (rQAttributeName.getLength() == 5) // set default namespace
            {
                OUString aDefNamespacePrefix;
                pushPrefix(
                    aDefNamespacePrefix,
                    xAttribs->getValueByIndex( nPos ) );
                elementEntry.m_prefixes.push_back( aDefNamespacePrefix );
                pUids[ nPos ]          = UID_UNKNOWN;
                pPrefixes[ nPos ]      = g_sXMLNS;
                pLocalNames[ nPos ]    = aDefNamespacePrefix;
            }
            else if (':' == rQAttributeName[ 5 ]) // set prefix
            {
                OUString aPrefix( rQAttributeName.copy( 6 ) );
                pushPrefix( aPrefix, xAttribs->getValueByIndex( nPos ) );
                elementEntry.m_prefixes.push_back( aPrefix );
                pUids[ nPos ]          = UID_UNKNOWN;
                pPrefixes[ nPos ]      = g_sXMLNS;
                pLocalNames[ nPos ]    = aPrefix;
            }
            // else just a name starting with xmlns, but no prefix
        }
    }

    // now read out attribute prefixes (all namespace prefixes have been set)
    for ( nPos = 0; nPos < nAttribs; ++nPos )
    {
        if (pUids[ nPos ] >= 0) // no xmlns: attribute
        {
            OUString const & rQAttributeName = pQNames[ nPos ];
            SAL_WARN_IF(rQAttributeName.startsWith( "xmlns:" ), "xmlscript.xmlhelper", "### unexpected xmlns!" );

            // collect attribute's uid and current prefix
            sal_Int32 nColonPos = rQAttributeName.indexOf( ':' );
            if (nColonPos >= 0)
            {
                pPrefixes[ nPos ] = rQAttributeName.copy( 0, nColonPos );
                pLocalNames[ nPos ] = rQAttributeName.copy( nColonPos +1 );
            }
            else
            {
                pPrefixes[ nPos ].clear();
                pLocalNames[ nPos ] = rQAttributeName;
                // leave local names unmodified
            }
            pUids[ nPos ] = getUidByPrefix( pPrefixes[ nPos ] );
        }
    }
    pPrefixes.reset();
    // ownership of arrays belongs to attribute list
    xAttributes = new ExtendedAttributes(nAttribs, std::move(pUids), std::move(pLocalNames),
                                         std::move(pQNames), xAttribs);

    getElementName( rQElementName, &nUid, &aLocalName );

    // create new child context and append to list
    if (! m_elements.empty())
        xCurrentElement = m_elements.back().m_xElement;
    } // :guard end

    if (xCurrentElement.is())
    {
        elementEntry.m_xElement =
            xCurrentElement->startChildElement( nUid, aLocalName, xAttributes );
    }
    else
    {
        elementEntry.m_xElement =
            m_xRoot->startRootElement( nUid, aLocalName, xAttributes );
    }

    {
    MGuard aGuard( m_pMutex );
    if (elementEntry.m_xElement.is())
    {
        m_elements.push_back( std::move(elementEntry) );
    }
    else
    {
        ++m_nSkipElements;

        // pop prefixes
        for (sal_Int32 nPos = elementEntry.m_prefixes.size(); nPos--;)
            popPrefix(elementEntry.m_prefixes[nPos]);

        SAL_INFO("xmlscript.xmlhelper", " no context given on createChildElement() => ignoring element \"" << rQElementName << "\" ...");
    }
    }
}

void DocumentHandlerImpl::endElement(
    OUString const & rQElementName )
{
    Reference< xml::input::XElement > xCurrentElement;
    {
        MGuard aGuard( m_pMutex );
        if (m_nSkipElements)
        {
            --m_nSkipElements;
            SAL_INFO("xmlscript.xmlhelper", "### received endElement() for \"" << rQElementName << "\".");
            return;
        }

        // popping context
        SAL_WARN_IF( m_elements.empty(), "xmlscript.xmlhelper", "m_elements is empty" );
        ElementEntry& rEntry = m_elements.back();
        xCurrentElement = rEntry.m_xElement;

#if OSL_DEBUG_LEVEL > 0
        sal_Int32 nUid;
        OUString aLocalName;
        getElementName( rQElementName, &nUid, &aLocalName );
        SAL_WARN_IF( xCurrentElement->getLocalName() != aLocalName, "xmlscript.xmlhelper", "xCurrentElement->getLocalName() != aLocalName" );
        SAL_WARN_IF( xCurrentElement->getUid() != nUid, "xmlscript.xmlhelper", "xCurrentElement->getUid() != nUid" );
#endif

        // pop prefixes
        for ( sal_Int32 nPos = rEntry.m_prefixes.size(); nPos--; )
        {
            popPrefix( rEntry.m_prefixes[ nPos ] );
        }
        m_elements.pop_back();
    }
    xCurrentElement->endElement();
}

void DocumentHandlerImpl::characters( OUString const & rChars )
{
    Reference< xml::input::XElement > xCurrentElement( getCurrentElement() );
    if (xCurrentElement.is())
        xCurrentElement->characters( rChars );
}

void DocumentHandlerImpl::ignorableWhitespace(
    OUString const & rWhitespaces )
{
    Reference< xml::input::XElement > xCurrentElement( getCurrentElement() );
    if (xCurrentElement.is())
        xCurrentElement->ignorableWhitespace( rWhitespaces );
}

void DocumentHandlerImpl::processingInstruction(
    OUString const & rTarget, OUString const & rData )
{
    Reference< xml::input::XElement > xCurrentElement( getCurrentElement() );
    if (xCurrentElement.is())
        xCurrentElement->processingInstruction( rTarget, rData );
    else
        m_xRoot->processingInstruction( rTarget, rData );
}

void DocumentHandlerImpl::setDocumentLocator(
    Reference< xml::sax::XLocator > const & xLocator )
{
    m_xRoot->setDocumentLocator( xLocator );
}

// XAttributes

sal_Int32 ExtendedAttributes::getIndexByQName( OUString const & rQName )<--- The function 'getIndexByQName' is never used.
{
    for ( sal_Int32 nPos = m_nAttributes; nPos--; )
    {
        if (m_pQNames[ nPos ] == rQName)
        {
            return nPos;
        }
    }
    return -1;
}

sal_Int32 ExtendedAttributes::getLength()
{
    return m_nAttributes;
}

OUString ExtendedAttributes::getLocalNameByIndex( sal_Int32 nIndex )<--- The function 'getLocalNameByIndex' is never used.
{
    if (nIndex < m_nAttributes)
        return m_pLocalNames[ nIndex ];
    else
        return OUString();
}

OUString ExtendedAttributes::getQNameByIndex( sal_Int32 nIndex )<--- The function 'getQNameByIndex' is never used.
{
    if (nIndex < m_nAttributes)
        return m_pQNames[ nIndex ];
    else
        return OUString();
}

OUString ExtendedAttributes::getTypeByIndex( sal_Int32 nIndex )
{
    SAL_WARN_IF( nIndex >= m_nAttributes , "xmlscript.xmlhelper", "nIndex is bigger then m_nAttributes");
    return OUString(); // unsupported
}

OUString ExtendedAttributes::getValueByIndex( sal_Int32 nIndex )
{
    if (nIndex < m_nAttributes)
        return m_pValues[ nIndex ];
    else
        return OUString();
}

sal_Int32 ExtendedAttributes::getIndexByUidName(<--- The function 'getIndexByUidName' is never used.
    sal_Int32 nUid, OUString const & rLocalName )
{
    for ( sal_Int32 nPos = m_nAttributes; nPos--; )
    {
        if (m_pUids[ nPos ] == nUid && m_pLocalNames[ nPos ] == rLocalName)
        {
            return nPos;
        }
    }
    return -1;
}

sal_Int32 ExtendedAttributes::getUidByIndex( sal_Int32 nIndex )<--- The function 'getUidByIndex' is never used.
{
    if (nIndex < m_nAttributes)
        return m_pUids[ nIndex ];
    else
        return -1;
}

OUString ExtendedAttributes::getValueByUidName(
    sal_Int32 nUid, OUString const & rLocalName )
{
    for ( sal_Int32 nPos = m_nAttributes; nPos--; )
    {
        if (m_pUids[ nPos ] == nUid && m_pLocalNames[ nPos ] == rLocalName)
        {
            return m_pValues[ nPos ];
        }
    }
    return OUString();
}

Reference< xml::sax::XDocumentHandler > createDocumentHandler(
    Reference< xml::input::XRoot > const & xRoot )
{
    SAL_WARN_IF( !xRoot.is(), "xmlscript.xmlhelper", "xRoot is NULL" );
    if (xRoot.is())
    {
        return new DocumentHandlerImpl(xRoot, true /* mt use */);
    }
    return Reference< xml::sax::XDocumentHandler >();
}

Reference< XInterface > create_DocumentHandlerImpl(
    SAL_UNUSED_PARAMETER Reference< XComponentContext > const & )
{
    return static_cast< ::cppu::OWeakObject * >(
        new DocumentHandlerImpl(
            Reference< xml::input::XRoot >(), false /* mt use */ ) );
}

}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */