~ubuntu-branches/ubuntu/utopic/libxml2/utopic : revision 43.2.6

1

/*

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* tree.c : implementation of access function for an XML tree.

3

*

4

* References:

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* XHTML 1.0 W3C REC: http://www.w3.org/TR/2002/REC-xhtml1-20020801/

6

*

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* See Copyright for the status of this software.

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*

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* daniel@veillard.com

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*

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*/

12

13

#define IN_LIBXML

14

#include "libxml.h"

15

16

#include <string.h> /* for memset() only ! */

17

#include <limits.h>

18

#ifdef HAVE_CTYPE_H

19

#include <ctype.h>

20

#endif

21

#ifdef HAVE_STDLIB_H

22

#include <stdlib.h>

23

#endif

24

#ifdef HAVE_ZLIB_H

25

#include <zlib.h>

26

#endif

27

28

#include <libxml/xmlmemory.h>

29

#include <libxml/tree.h>

30

#include <libxml/parser.h>

31

#include <libxml/uri.h>

32

#include <libxml/entities.h>

33

#include <libxml/valid.h>

34

#include <libxml/xmlerror.h>

35

#include <libxml/parserInternals.h>

36

#include <libxml/globals.h>

37

#ifdef LIBXML_HTML_ENABLED

38

#include <libxml/HTMLtree.h>

39

#endif

40

#ifdef LIBXML_DEBUG_ENABLED

41

#include <libxml/debugXML.h>

42

#endif

43

44

#include "buf.h"

45

#include "save.h"

46

47

int __xmlRegisterCallbacks = 0;

48

49

/************************************************************************

50

* *

51

* Forward declarations *

52

* *

53

************************************************************************/

54

55

static xmlNsPtr

56

xmlNewReconciliedNs(xmlDocPtr doc, xmlNodePtr tree, xmlNsPtr ns);

57

58

static xmlChar* xmlGetPropNodeValueInternal(xmlAttrPtr prop);

59

60

/************************************************************************

61

* *

62

* Tree memory error handler *

63

* *

64

************************************************************************/

65

/**

66

* xmlTreeErrMemory:

67

* @extra: extra informations

68

*

69

* Handle an out of memory condition

70

*/

71

static void

72

xmlTreeErrMemory(const char *extra)

73

{

74

__xmlSimpleError(XML_FROM_TREE, XML_ERR_NO_MEMORY, NULL, NULL, extra);

75

}

76

77

/**

78

* xmlTreeErr:

79

* @code: the error number

80

* @extra: extra informations

81

*

82

* Handle an out of memory condition

83

*/

84

static void

85

xmlTreeErr(int code, xmlNodePtr node, const char *extra)

86

{

87

const char *msg = NULL;

88

89

switch(code) {

90

case XML_TREE_INVALID_HEX:

91

msg = "invalid hexadecimal character value\n";

92

break;

93

case XML_TREE_INVALID_DEC:

94

msg = "invalid decimal character value\n";

95

break;

96

case XML_TREE_UNTERMINATED_ENTITY:

97

msg = "unterminated entity reference %15s\n";

98

break;

99

case XML_TREE_NOT_UTF8:

100

msg = "string is not in UTF-8\n";

101

break;

102

default:

103

msg = "unexpected error number\n";

104

}

105

__xmlSimpleError(XML_FROM_TREE, code, node, msg, extra);

106

}

107

108

/************************************************************************

109

* *

110

* A few static variables and macros *

111

* *

112

************************************************************************/

113

/* #undef xmlStringText */

114

const xmlChar xmlStringText[] = { 't', 'e', 'x', 't', 0 };

115

/* #undef xmlStringTextNoenc */

116

const xmlChar xmlStringTextNoenc[] =

117

{ 't', 'e', 'x', 't', 'n', 'o', 'e', 'n', 'c', 0 };

118

/* #undef xmlStringComment */

119

const xmlChar xmlStringComment[] = { 'c', 'o', 'm', 'm', 'e', 'n', 't', 0 };

120

121

static int xmlCompressMode = 0;

122

static int xmlCheckDTD = 1;

123

124

#define UPDATE_LAST_CHILD_AND_PARENT(n) if ((n) != NULL) { \

125

xmlNodePtr ulccur = (n)->children; \

126

if (ulccur == NULL) { \

127

(n)->last = NULL; \

128

} else { \

129

while (ulccur->next != NULL) { \

130

ulccur->parent = (n); \

131

ulccur = ulccur->next; \

132

} \

133

ulccur->parent = (n); \

134

(n)->last = ulccur; \

135

}}

136

137

#define IS_STR_XML(str) ((str != NULL) && (str[0] == 'x') && \

138

(str[1] == 'm') && (str[2] == 'l') && (str[3] == 0))

139

140

/* #define DEBUG_BUFFER */

141

/* #define DEBUG_TREE */

142

143

/************************************************************************

144

* *

145

* Functions to move to entities.c once the *

146

* API freeze is smoothen and they can be made public. *

147

* *

148

************************************************************************/

149

#include <libxml/hash.h>

150

151

#ifdef LIBXML_TREE_ENABLED

152

/**

153

* xmlGetEntityFromDtd:

154

* @dtd: A pointer to the DTD to search

155

* @name: The entity name

156

*

157

* Do an entity lookup in the DTD entity hash table and

158

* return the corresponding entity, if found.

159

*

160

* Returns A pointer to the entity structure or NULL if not found.

161

*/

162

static xmlEntityPtr

163

xmlGetEntityFromDtd(xmlDtdPtr dtd, const xmlChar *name) {

164

xmlEntitiesTablePtr table;

165

166

if((dtd != NULL) && (dtd->entities != NULL)) {

167

table = (xmlEntitiesTablePtr) dtd->entities;

168

return((xmlEntityPtr) xmlHashLookup(table, name));

169

/* return(xmlGetEntityFromTable(table, name)); */

170

}

171

return(NULL);

172

}

173

/**

174

* xmlGetParameterEntityFromDtd:

175

* @dtd: A pointer to the DTD to search

176

* @name: The entity name

177

*

178

* Do an entity lookup in the DTD pararmeter entity hash table and

179

* return the corresponding entity, if found.

180

*

181

* Returns A pointer to the entity structure or NULL if not found.

182

*/

183

static xmlEntityPtr

184

xmlGetParameterEntityFromDtd(xmlDtdPtr dtd, const xmlChar *name) {

185

xmlEntitiesTablePtr table;

186

187

if ((dtd != NULL) && (dtd->pentities != NULL)) {

188

table = (xmlEntitiesTablePtr) dtd->pentities;

189

return((xmlEntityPtr) xmlHashLookup(table, name));

190

/* return(xmlGetEntityFromTable(table, name)); */

191

}

192

return(NULL);

193

}

194

#endif /* LIBXML_TREE_ENABLED */

195

196

/************************************************************************

197

* *

198

* QName handling helper *

199

* *

200

************************************************************************/

201

202

/**

203

* xmlBuildQName:

204

* @ncname: the Name

205

* @prefix: the prefix

206

* @memory: preallocated memory

207

* @len: preallocated memory length

208

*

209

* Builds the QName @prefix:@ncname in @memory if there is enough space

210

* and prefix is not NULL nor empty, otherwise allocate a new string.

211

* If prefix is NULL or empty it returns ncname.

212

*

213

* Returns the new string which must be freed by the caller if different from

214

* @memory and @ncname or NULL in case of error

215

*/

216

xmlChar *

217

xmlBuildQName(const xmlChar *ncname, const xmlChar *prefix,

218

xmlChar *memory, int len) {

219

int lenn, lenp;

220

xmlChar *ret;

221

222

if (ncname == NULL) return(NULL);

223

if (prefix == NULL) return((xmlChar *) ncname);

224

225

lenn = strlen((char *) ncname);

226

lenp = strlen((char *) prefix);

227

228

if ((memory == NULL) || (len < lenn + lenp + 2)) {

229

ret = (xmlChar *) xmlMallocAtomic(lenn + lenp + 2);

230

if (ret == NULL) {

231

xmlTreeErrMemory("building QName");

232

return(NULL);

233

}

234

} else {

235

ret = memory;

236

}

237

memcpy(&ret[0], prefix, lenp);

238

ret[lenp] = ':';

239

memcpy(&ret[lenp + 1], ncname, lenn);

240

ret[lenn + lenp + 1] = 0;

241

return(ret);

242

}

243

244

/**

245

* xmlSplitQName2:

246

* @name: the full QName

247

* @prefix: a xmlChar **

248

*

249

* parse an XML qualified name string

250

*

251

* [NS 5] QName ::= (Prefix ':')? LocalPart

252

*

253

* [NS 6] Prefix ::= NCName

254

*

255

* [NS 7] LocalPart ::= NCName

256

*

257

* Returns NULL if not a QName, otherwise the local part, and prefix

258

* is updated to get the Prefix if any.

259

*/

260

261

xmlChar *

262

xmlSplitQName2(const xmlChar *name, xmlChar **prefix) {

263

int len = 0;

264

xmlChar *ret = NULL;

265

266

if (prefix == NULL) return(NULL);

267

*prefix = NULL;

268

if (name == NULL) return(NULL);

269

270

#ifndef XML_XML_NAMESPACE

271

/* xml: prefix is not really a namespace */

272

if ((name[0] == 'x') && (name[1] == 'm') &&

273

(name[2] == 'l') && (name[3] == ':'))

274

return(NULL);

275

#endif

276

277

/* nasty but valid */

278

if (name[0] == ':')

279

return(NULL);

280

281

/*

282

* we are not trying to validate but just to cut, and yes it will

283

* work even if this is as set of UTF-8 encoded chars

284

*/

285

while ((name[len] != 0) && (name[len] != ':'))

286

len++;

287

288

if (name[len] == 0)

289

return(NULL);

290

291

*prefix = xmlStrndup(name, len);

292

if (*prefix == NULL) {

293

xmlTreeErrMemory("QName split");

294

return(NULL);

295

}

296

ret = xmlStrdup(&name[len + 1]);

297

if (ret == NULL) {

298

xmlTreeErrMemory("QName split");

299

if (*prefix != NULL) {

300

xmlFree(*prefix);

301

*prefix = NULL;

302

}

303

return(NULL);

304

}

305

306

return(ret);

307

}

308

309

/**

310

* xmlSplitQName3:

311

* @name: the full QName

312

* @len: an int *

313

*

314

* parse an XML qualified name string,i

315

*

316

* returns NULL if it is not a Qualified Name, otherwise, update len

317

* with the length in byte of the prefix and return a pointer

318

* to the start of the name without the prefix

319

*/

320

321

const xmlChar *

322

xmlSplitQName3(const xmlChar *name, int *len) {

323

int l = 0;

324

325

if (name == NULL) return(NULL);

326

if (len == NULL) return(NULL);

327

328

/* nasty but valid */

329

if (name[0] == ':')

330

return(NULL);

331

332

/*

333

* we are not trying to validate but just to cut, and yes it will

334

* work even if this is as set of UTF-8 encoded chars

335

*/

336

while ((name[l] != 0) && (name[l] != ':'))

337

l++;

338

339

if (name[l] == 0)

340

return(NULL);

341

342

*len = l;

343

344

return(&name[l+1]);

345

}

346

347

/************************************************************************

348

* *

349

* Check Name, NCName and QName strings *

350

* *

351

************************************************************************/

352

353

#define CUR_SCHAR(s, l) xmlStringCurrentChar(NULL, s, &l)

354

355

#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_XPATH_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED) || defined(LIBXML_DEBUG_ENABLED) || defined (LIBXML_HTML_ENABLED) || defined(LIBXML_SAX1_ENABLED) || defined(LIBXML_HTML_ENABLED) || defined(LIBXML_WRITER_ENABLED) || defined(LIBXML_DOCB_ENABLED)

356

/**

357

* xmlValidateNCName:

358

* @value: the value to check

359

* @space: allow spaces in front and end of the string

360

*

361

* Check that a value conforms to the lexical space of NCName

362

*

363

* Returns 0 if this validates, a positive error code number otherwise

364

* and -1 in case of internal or API error.

365

*/

366

int

367

xmlValidateNCName(const xmlChar *value, int space) {

368

const xmlChar *cur = value;

369

int c,l;

370

371

if (value == NULL)

372

return(-1);

373

374

/*

375

* First quick algorithm for ASCII range

376

*/

377

if (space)

378

while (IS_BLANK_CH(*cur)) cur++;

379

if (((*cur >= 'a') && (*cur <= 'z')) || ((*cur >= 'A') && (*cur <= 'Z')) ||

380

(*cur == '_'))

381

cur++;

382

else

383

goto try_complex;

384

while (((*cur >= 'a') && (*cur <= 'z')) ||

385

((*cur >= 'A') && (*cur <= 'Z')) ||

386

((*cur >= '0') && (*cur <= '9')) ||

387

(*cur == '_') || (*cur == '-') || (*cur == '.'))

388

cur++;

389

if (space)

390

while (IS_BLANK_CH(*cur)) cur++;

391

if (*cur == 0)

392

return(0);

393

394

try_complex:

395

/*

396

* Second check for chars outside the ASCII range

397

*/

398

cur = value;

399

c = CUR_SCHAR(cur, l);

400

if (space) {

401

while (IS_BLANK(c)) {

402

cur += l;

403

c = CUR_SCHAR(cur, l);

404

}

405

}

406

if ((!IS_LETTER(c)) && (c != '_'))

407

return(1);

408

cur += l;

409

c = CUR_SCHAR(cur, l);

410

while (IS_LETTER(c) || IS_DIGIT(c) || (c == '.') ||

411

(c == '-') || (c == '_') || IS_COMBINING(c) ||

412

IS_EXTENDER(c)) {

413

cur += l;

414

c = CUR_SCHAR(cur, l);

415

}

416

if (space) {

417

while (IS_BLANK(c)) {

418

cur += l;

419

c = CUR_SCHAR(cur, l);

420

}

421

}

422

if (c != 0)

423

return(1);

424

425

return(0);

426

}

427

#endif

428

429

#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)

430

/**

431

* xmlValidateQName:

432

* @value: the value to check

433

* @space: allow spaces in front and end of the string

434

*

435

* Check that a value conforms to the lexical space of QName

436

*

437

* Returns 0 if this validates, a positive error code number otherwise

438

* and -1 in case of internal or API error.

439

*/

440

int

441

xmlValidateQName(const xmlChar *value, int space) {

442

const xmlChar *cur = value;

443

int c,l;

444

445

if (value == NULL)

446

return(-1);

447

/*

448

* First quick algorithm for ASCII range

449

*/

450

if (space)

451

while (IS_BLANK_CH(*cur)) cur++;

452

if (((*cur >= 'a') && (*cur <= 'z')) || ((*cur >= 'A') && (*cur <= 'Z')) ||

453

(*cur == '_'))

454

cur++;

455

else

456

goto try_complex;

457

while (((*cur >= 'a') && (*cur <= 'z')) ||

458

((*cur >= 'A') && (*cur <= 'Z')) ||

459

((*cur >= '0') && (*cur <= '9')) ||

460

(*cur == '_') || (*cur == '-') || (*cur == '.'))

461

cur++;

462

if (*cur == ':') {

463

cur++;

464

if (((*cur >= 'a') && (*cur <= 'z')) ||

465

((*cur >= 'A') && (*cur <= 'Z')) ||

466

(*cur == '_'))

467

cur++;

468

else

469

goto try_complex;

470

while (((*cur >= 'a') && (*cur <= 'z')) ||

471

((*cur >= 'A') && (*cur <= 'Z')) ||

472

((*cur >= '0') && (*cur <= '9')) ||

473

(*cur == '_') || (*cur == '-') || (*cur == '.'))

474

cur++;

475

}

476

if (space)

477

while (IS_BLANK_CH(*cur)) cur++;

478

if (*cur == 0)

479

return(0);

480

481

try_complex:

482

/*

483

* Second check for chars outside the ASCII range

484

*/

485

cur = value;

486

c = CUR_SCHAR(cur, l);

487

if (space) {

488

while (IS_BLANK(c)) {

489

cur += l;

490

c = CUR_SCHAR(cur, l);

491

}

492

}

493

if ((!IS_LETTER(c)) && (c != '_'))

494

return(1);

495

cur += l;

496

c = CUR_SCHAR(cur, l);

497

while (IS_LETTER(c) || IS_DIGIT(c) || (c == '.') ||

498

(c == '-') || (c == '_') || IS_COMBINING(c) ||

499

IS_EXTENDER(c)) {

500

cur += l;

501

c = CUR_SCHAR(cur, l);

502

}

503

if (c == ':') {

504

cur += l;

505

c = CUR_SCHAR(cur, l);

506

if ((!IS_LETTER(c)) && (c != '_'))

507

return(1);

508

cur += l;

509

c = CUR_SCHAR(cur, l);

510

while (IS_LETTER(c) || IS_DIGIT(c) || (c == '.') ||

511

(c == '-') || (c == '_') || IS_COMBINING(c) ||

512

IS_EXTENDER(c)) {

513

cur += l;

514

c = CUR_SCHAR(cur, l);

515

}

516

}

517

if (space) {

518

while (IS_BLANK(c)) {

519

cur += l;

520

c = CUR_SCHAR(cur, l);

521

}

522

}

523

if (c != 0)

524

return(1);

525

return(0);

526

}

527

528

/**

529

* xmlValidateName:

530

* @value: the value to check

531

* @space: allow spaces in front and end of the string

532

*

533

* Check that a value conforms to the lexical space of Name

534

*

535

* Returns 0 if this validates, a positive error code number otherwise

536

* and -1 in case of internal or API error.

537

*/

538

int

539

xmlValidateName(const xmlChar *value, int space) {

540

const xmlChar *cur = value;

541

int c,l;

542

543

if (value == NULL)

544

return(-1);

545

/*

546

* First quick algorithm for ASCII range

547

*/

548

if (space)

549

while (IS_BLANK_CH(*cur)) cur++;

550

if (((*cur >= 'a') && (*cur <= 'z')) || ((*cur >= 'A') && (*cur <= 'Z')) ||

551

(*cur == '_') || (*cur == ':'))

552

cur++;

553

else

554

goto try_complex;

555

while (((*cur >= 'a') && (*cur <= 'z')) ||

556

((*cur >= 'A') && (*cur <= 'Z')) ||

557

((*cur >= '0') && (*cur <= '9')) ||

558

(*cur == '_') || (*cur == '-') || (*cur == '.') || (*cur == ':'))

559

cur++;

560

if (space)

561

while (IS_BLANK_CH(*cur)) cur++;

562

if (*cur == 0)

563

return(0);

564

565

try_complex:

566

/*

567

* Second check for chars outside the ASCII range

568

*/

569

cur = value;

570

c = CUR_SCHAR(cur, l);

571

if (space) {

572

while (IS_BLANK(c)) {

573

cur += l;

574

c = CUR_SCHAR(cur, l);

575

}

576

}

577

if ((!IS_LETTER(c)) && (c != '_') && (c != ':'))

578

return(1);

579

cur += l;

580

c = CUR_SCHAR(cur, l);

581

while (IS_LETTER(c) || IS_DIGIT(c) || (c == '.') || (c == ':') ||

582

(c == '-') || (c == '_') || IS_COMBINING(c) || IS_EXTENDER(c)) {

583

cur += l;

584

c = CUR_SCHAR(cur, l);

585

}

586

if (space) {

587

while (IS_BLANK(c)) {

588

cur += l;

589

c = CUR_SCHAR(cur, l);

590

}

591

}

592

if (c != 0)

593

return(1);

594

return(0);

595

}

596

597

/**

598

* xmlValidateNMToken:

599

* @value: the value to check

600

* @space: allow spaces in front and end of the string

601

*

602

* Check that a value conforms to the lexical space of NMToken

603

*

604

* Returns 0 if this validates, a positive error code number otherwise

605

* and -1 in case of internal or API error.

606

*/

607

int

608

xmlValidateNMToken(const xmlChar *value, int space) {

609

const xmlChar *cur = value;

610

int c,l;

611

612

if (value == NULL)

613

return(-1);

614

/*

615

* First quick algorithm for ASCII range

616

*/

617

if (space)

618

while (IS_BLANK_CH(*cur)) cur++;

619

if (((*cur >= 'a') && (*cur <= 'z')) ||

620

((*cur >= 'A') && (*cur <= 'Z')) ||

621

((*cur >= '0') && (*cur <= '9')) ||

622

(*cur == '_') || (*cur == '-') || (*cur == '.') || (*cur == ':'))

623

cur++;

624

else

625

goto try_complex;

626

while (((*cur >= 'a') && (*cur <= 'z')) ||

627

((*cur >= 'A') && (*cur <= 'Z')) ||

628

((*cur >= '0') && (*cur <= '9')) ||

629

(*cur == '_') || (*cur == '-') || (*cur == '.') || (*cur == ':'))

630

cur++;

631

if (space)

632

while (IS_BLANK_CH(*cur)) cur++;

633

if (*cur == 0)

634

return(0);

635

636

try_complex:

637

/*

638

* Second check for chars outside the ASCII range

639

*/

640

cur = value;

641

c = CUR_SCHAR(cur, l);

642

if (space) {

643

while (IS_BLANK(c)) {

644

cur += l;

645

c = CUR_SCHAR(cur, l);

646

}

647

}

648

if (!(IS_LETTER(c) || IS_DIGIT(c) || (c == '.') || (c == ':') ||

649

(c == '-') || (c == '_') || IS_COMBINING(c) || IS_EXTENDER(c)))

650

return(1);

651

cur += l;

652

c = CUR_SCHAR(cur, l);

653

while (IS_LETTER(c) || IS_DIGIT(c) || (c == '.') || (c == ':') ||

654

(c == '-') || (c == '_') || IS_COMBINING(c) || IS_EXTENDER(c)) {

655

cur += l;

656

c = CUR_SCHAR(cur, l);

657

}

658

if (space) {

659

while (IS_BLANK(c)) {

660

cur += l;

661

c = CUR_SCHAR(cur, l);

662

}

663

}

664

if (c != 0)

665

return(1);

666

return(0);

667

}

668

#endif /* LIBXML_TREE_ENABLED */

669

670

/************************************************************************

671

* *

672

* Allocation and deallocation of basic structures *

673

* *

674

************************************************************************/

675

676

/**

677

* xmlSetBufferAllocationScheme:

678

* @scheme: allocation method to use

679

*

680

* Set the buffer allocation method. Types are

681

* XML_BUFFER_ALLOC_EXACT - use exact sizes, keeps memory usage down

682

* XML_BUFFER_ALLOC_DOUBLEIT - double buffer when extra needed,

683

* improves performance

684

*/

685

void

686

xmlSetBufferAllocationScheme(xmlBufferAllocationScheme scheme) {

687

if ((scheme == XML_BUFFER_ALLOC_EXACT) ||

688

(scheme == XML_BUFFER_ALLOC_DOUBLEIT) ||

689

(scheme == XML_BUFFER_ALLOC_HYBRID))

690

xmlBufferAllocScheme = scheme;

691

}

692

693

/**

694

* xmlGetBufferAllocationScheme:

695

*

696

* Types are

697

* XML_BUFFER_ALLOC_EXACT - use exact sizes, keeps memory usage down

698

* XML_BUFFER_ALLOC_DOUBLEIT - double buffer when extra needed,

699

* improves performance

700

* XML_BUFFER_ALLOC_HYBRID - use exact sizes on small strings to keep memory usage tight

701

* in normal usage, and doubleit on large strings to avoid

702

* pathological performance.

703

*

704

* Returns the current allocation scheme

705

*/

706

xmlBufferAllocationScheme

707

xmlGetBufferAllocationScheme(void) {

708

return(xmlBufferAllocScheme);

709

}

710

711

/**

712

* xmlNewNs:

713

* @node: the element carrying the namespace

714

* @href: the URI associated

715

* @prefix: the prefix for the namespace

716

*

717

* Creation of a new Namespace. This function will refuse to create

718

* a namespace with a similar prefix than an existing one present on this

719

* node.

720

* We use href==NULL in the case of an element creation where the namespace

721

* was not defined.

722

* Returns a new namespace pointer or NULL

723

*/

724

xmlNsPtr

725

xmlNewNs(xmlNodePtr node, const xmlChar *href, const xmlChar *prefix) {

726

xmlNsPtr cur;

727

728

if ((node != NULL) && (node->type != XML_ELEMENT_NODE))

729

return(NULL);

730

731

if ((prefix != NULL) && (xmlStrEqual(prefix, BAD_CAST "xml"))) {

732

/* xml namespace is predefined, no need to add it */

733

if (xmlStrEqual(href, XML_XML_NAMESPACE))

734

return(NULL);

735

736

/*

737

* Problem, this is an attempt to bind xml prefix to a wrong

738

* namespace, which breaks

739

* Namespace constraint: Reserved Prefixes and Namespace Names

740

* from XML namespace. But documents authors may not care in

741

* their context so let's proceed.

742

*/

743

}

744

745

/*

746

* Allocate a new Namespace and fill the fields.

747

*/

748

cur = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));

749

if (cur == NULL) {

750

xmlTreeErrMemory("building namespace");

751

return(NULL);

752

}

753

memset(cur, 0, sizeof(xmlNs));

754

cur->type = XML_LOCAL_NAMESPACE;

755

756

if (href != NULL)

757

cur->href = xmlStrdup(href);

758

if (prefix != NULL)

759

cur->prefix = xmlStrdup(prefix);

760

761

/*

762

* Add it at the end to preserve parsing order ...

763

* and checks for existing use of the prefix

764

*/

765

if (node != NULL) {

766

if (node->nsDef == NULL) {

767

node->nsDef = cur;

768

} else {

769

xmlNsPtr prev = node->nsDef;

770

771

if (((prev->prefix == NULL) && (cur->prefix == NULL)) ||

772

(xmlStrEqual(prev->prefix, cur->prefix))) {

773

xmlFreeNs(cur);

774

return(NULL);

775

}

776

while (prev->next != NULL) {

777

prev = prev->next;

778

if (((prev->prefix == NULL) && (cur->prefix == NULL)) ||

779

(xmlStrEqual(prev->prefix, cur->prefix))) {

780

xmlFreeNs(cur);

781

return(NULL);

782

}

783

}

784

prev->next = cur;

785

}

786

}

787

return(cur);

788

}

789

790

/**

791

* xmlSetNs:

792

* @node: a node in the document

793

* @ns: a namespace pointer

794

*

795

* Associate a namespace to a node, a posteriori.

796

*/

797

void

798

xmlSetNs(xmlNodePtr node, xmlNsPtr ns) {

799

if (node == NULL) {

800

#ifdef DEBUG_TREE

801

xmlGenericError(xmlGenericErrorContext,

802

"xmlSetNs: node == NULL\n");

803

#endif

804

return;

805

}

806

node->ns = ns;

807

}

808

809

/**

810

* xmlFreeNs:

811

* @cur: the namespace pointer

812

*

813

* Free up the structures associated to a namespace

814

*/

815

void

816

xmlFreeNs(xmlNsPtr cur) {

817

if (cur == NULL) {

818

#ifdef DEBUG_TREE

819

xmlGenericError(xmlGenericErrorContext,

820

"xmlFreeNs : ns == NULL\n");

821

#endif

822

return;

823

}

824

if (cur->href != NULL) xmlFree((char *) cur->href);

825

if (cur->prefix != NULL) xmlFree((char *) cur->prefix);

826

xmlFree(cur);

827

}

828

829

/**

830

* xmlFreeNsList:

831

* @cur: the first namespace pointer

832

*

833

* Free up all the structures associated to the chained namespaces.

834

*/

835

void

836

xmlFreeNsList(xmlNsPtr cur) {

837

xmlNsPtr next;

838

if (cur == NULL) {

839

#ifdef DEBUG_TREE

840

xmlGenericError(xmlGenericErrorContext,

841

"xmlFreeNsList : ns == NULL\n");

842

#endif

843

return;

844

}

845

while (cur != NULL) {

846

next = cur->next;

847

xmlFreeNs(cur);

848

cur = next;

849

}

850

}

851

852

/**

853

* xmlNewDtd:

854

* @doc: the document pointer

855

* @name: the DTD name

856

* @ExternalID: the external ID

857

* @SystemID: the system ID

858

*

859

* Creation of a new DTD for the external subset. To create an

860

* internal subset, use xmlCreateIntSubset().

861

*

862

* Returns a pointer to the new DTD structure

863

*/

864

xmlDtdPtr

865

xmlNewDtd(xmlDocPtr doc, const xmlChar *name,

866

const xmlChar *ExternalID, const xmlChar *SystemID) {

867

xmlDtdPtr cur;

868

869

if ((doc != NULL) && (doc->extSubset != NULL)) {

870

#ifdef DEBUG_TREE

871

xmlGenericError(xmlGenericErrorContext,

872

"xmlNewDtd(%s): document %s already have a DTD %s\n",

873

/* !!! */ (char *) name, doc->name,

874

/* !!! */ (char *)doc->extSubset->name);

875

#endif

876

return(NULL);

877

}

878

879

/*

880

* Allocate a new DTD and fill the fields.

881

*/

882

cur = (xmlDtdPtr) xmlMalloc(sizeof(xmlDtd));

883

if (cur == NULL) {

884

xmlTreeErrMemory("building DTD");

885

return(NULL);

886

}

887

memset(cur, 0 , sizeof(xmlDtd));

888

cur->type = XML_DTD_NODE;

889

890

if (name != NULL)

891

cur->name = xmlStrdup(name);

892

if (ExternalID != NULL)

893

cur->ExternalID = xmlStrdup(ExternalID);

894

if (SystemID != NULL)

895

cur->SystemID = xmlStrdup(SystemID);

896

if (doc != NULL)

897

doc->extSubset = cur;

898

cur->doc = doc;

899

900

if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))

901

xmlRegisterNodeDefaultValue((xmlNodePtr)cur);

902

return(cur);

903

}

904

905

/**

906

* xmlGetIntSubset:

907

* @doc: the document pointer

908

*

909

* Get the internal subset of a document

910

* Returns a pointer to the DTD structure or NULL if not found

911

*/

912

913

xmlDtdPtr

914

xmlGetIntSubset(xmlDocPtr doc) {

915

xmlNodePtr cur;

916

917

if (doc == NULL)

918

return(NULL);

919

cur = doc->children;

920

while (cur != NULL) {

921

if (cur->type == XML_DTD_NODE)

922

return((xmlDtdPtr) cur);

923

cur = cur->next;

924

}

925

return((xmlDtdPtr) doc->intSubset);

926

}

927

928

/**

929

* xmlCreateIntSubset:

930

* @doc: the document pointer

931

* @name: the DTD name

932

* @ExternalID: the external (PUBLIC) ID

933

* @SystemID: the system ID

934

*

935

* Create the internal subset of a document

936

* Returns a pointer to the new DTD structure

937

*/

938

xmlDtdPtr

939

xmlCreateIntSubset(xmlDocPtr doc, const xmlChar *name,

940

const xmlChar *ExternalID, const xmlChar *SystemID) {

941

xmlDtdPtr cur;

942

943

if ((doc != NULL) && (xmlGetIntSubset(doc) != NULL)) {

944

#ifdef DEBUG_TREE

945

xmlGenericError(xmlGenericErrorContext,

946

947

"xmlCreateIntSubset(): document %s already have an internal subset\n",

948

doc->name);

949

#endif

950

return(NULL);

951

}

952

953

/*

954

* Allocate a new DTD and fill the fields.

955

*/

956

cur = (xmlDtdPtr) xmlMalloc(sizeof(xmlDtd));

957

if (cur == NULL) {

958

xmlTreeErrMemory("building internal subset");

959

return(NULL);

960

}

961

memset(cur, 0, sizeof(xmlDtd));

962

cur->type = XML_DTD_NODE;

963

964

if (name != NULL) {

965

cur->name = xmlStrdup(name);

966

if (cur->name == NULL) {

967

xmlTreeErrMemory("building internal subset");

968

xmlFree(cur);

969

return(NULL);

970

}

971

}

972

if (ExternalID != NULL) {

973

cur->ExternalID = xmlStrdup(ExternalID);

974

if (cur->ExternalID == NULL) {

975

xmlTreeErrMemory("building internal subset");

976

if (cur->name != NULL)

977

xmlFree((char *)cur->name);

978

xmlFree(cur);

979

return(NULL);

980

}

981

}

982

if (SystemID != NULL) {

983

cur->SystemID = xmlStrdup(SystemID);

984

if (cur->SystemID == NULL) {

985

xmlTreeErrMemory("building internal subset");

986

if (cur->name != NULL)

987

xmlFree((char *)cur->name);

988

if (cur->ExternalID != NULL)

989

xmlFree((char *)cur->ExternalID);

990

xmlFree(cur);

991

return(NULL);

992

}

993

}

994

if (doc != NULL) {

995

doc->intSubset = cur;

996

cur->parent = doc;

997

cur->doc = doc;

998

if (doc->children == NULL) {

999

doc->children = (xmlNodePtr) cur;

1000

doc->last = (xmlNodePtr) cur;

1001

} else {

1002

if (doc->type == XML_HTML_DOCUMENT_NODE) {

1003

xmlNodePtr prev;

1004

1005

prev = doc->children;

1006

prev->prev = (xmlNodePtr) cur;

1007

cur->next = prev;

1008

doc->children = (xmlNodePtr) cur;

1009

} else {

1010

xmlNodePtr next;

1011

1012

next = doc->children;

1013

while ((next != NULL) && (next->type != XML_ELEMENT_NODE))

1014

next = next->next;

1015

if (next == NULL) {

1016

cur->prev = doc->last;

1017

cur->prev->next = (xmlNodePtr) cur;

1018

cur->next = NULL;

1019

doc->last = (xmlNodePtr) cur;

1020

} else {

1021

cur->next = next;

1022

cur->prev = next->prev;

1023

if (cur->prev == NULL)

1024

doc->children = (xmlNodePtr) cur;

1025

else

1026

cur->prev->next = (xmlNodePtr) cur;

1027

next->prev = (xmlNodePtr) cur;

1028

}

1029

}

1030

}

1031

}

1032

1033

if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))

1034

xmlRegisterNodeDefaultValue((xmlNodePtr)cur);

1035

return(cur);

1036

}

1037

1038

/**

1039

* DICT_FREE:

1040

* @str: a string

1041

*

1042

* Free a string if it is not owned by the "dict" dictionnary in the

1043

* current scope

1044

*/

1045

#define DICT_FREE(str) \

1046

if ((str) && ((!dict) || \

1047

(xmlDictOwns(dict, (const xmlChar *)(str)) == 0))) \

1048

xmlFree((char *)(str));

1049

1050

1051

/**

1052

* DICT_COPY:

1053

* @str: a string

1054

*

1055

* Copy a string using a "dict" dictionnary in the current scope,

1056

* if availabe.

1057

*/

1058

#define DICT_COPY(str, cpy) \

1059

if (str) { \

1060

if (dict) { \

1061

if (xmlDictOwns(dict, (const xmlChar *)(str))) \

1062

cpy = (xmlChar *) (str); \

1063

else \

1064

cpy = (xmlChar *) xmlDictLookup((dict), (const xmlChar *)(str), -1); \

1065

} else \

1066

cpy = xmlStrdup((const xmlChar *)(str)); }

1067

1068

/**

1069

* DICT_CONST_COPY:

1070

* @str: a string

1071

*

1072

* Copy a string using a "dict" dictionnary in the current scope,

1073

* if availabe.

1074

*/

1075

#define DICT_CONST_COPY(str, cpy) \

1076

if (str) { \

1077

if (dict) { \

1078

if (xmlDictOwns(dict, (const xmlChar *)(str))) \

1079

cpy = (const xmlChar *) (str); \

1080

else \

1081

cpy = xmlDictLookup((dict), (const xmlChar *)(str), -1); \

1082

} else \

1083

cpy = (const xmlChar *) xmlStrdup((const xmlChar *)(str)); }

1084

1085

1086

/**

1087

* xmlFreeDtd:

1088

* @cur: the DTD structure to free up

1089

*

1090

* Free a DTD structure.

1091

*/

1092

void

1093

xmlFreeDtd(xmlDtdPtr cur) {

1094

xmlDictPtr dict = NULL;

1095

1096

if (cur == NULL) {

1097

return;

1098

}

1099

if (cur->doc != NULL) dict = cur->doc->dict;

1100

1101

if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))

1102

xmlDeregisterNodeDefaultValue((xmlNodePtr)cur);

1103

1104

if (cur->children != NULL) {

1105

xmlNodePtr next, c = cur->children;

1106

1107

/*

1108

* Cleanup all nodes which are not part of the specific lists

1109

* of notations, elements, attributes and entities.

1110

*/

1111

while (c != NULL) {

1112

next = c->next;

1113

if ((c->type != XML_NOTATION_NODE) &&

1114

(c->type != XML_ELEMENT_DECL) &&

1115

(c->type != XML_ATTRIBUTE_DECL) &&

1116

(c->type != XML_ENTITY_DECL)) {

1117

xmlUnlinkNode(c);

1118

xmlFreeNode(c);

1119

}

1120

c = next;

1121

}

1122

}

1123

DICT_FREE(cur->name)

1124

DICT_FREE(cur->SystemID)

1125

DICT_FREE(cur->ExternalID)

1126

/* TODO !!! */

1127

if (cur->notations != NULL)

1128

xmlFreeNotationTable((xmlNotationTablePtr) cur->notations);

1129

1130

if (cur->elements != NULL)

1131

xmlFreeElementTable((xmlElementTablePtr) cur->elements);

1132

if (cur->attributes != NULL)

1133

xmlFreeAttributeTable((xmlAttributeTablePtr) cur->attributes);

1134

if (cur->entities != NULL)

1135

xmlFreeEntitiesTable((xmlEntitiesTablePtr) cur->entities);

1136

if (cur->pentities != NULL)

1137

xmlFreeEntitiesTable((xmlEntitiesTablePtr) cur->pentities);

1138

1139

xmlFree(cur);

1140

}

1141

1142

/**

1143

* xmlNewDoc:

1144

* @version: xmlChar string giving the version of XML "1.0"

1145

*

1146

* Creates a new XML document

1147

*

1148

* Returns a new document

1149

*/

1150

xmlDocPtr

1151

xmlNewDoc(const xmlChar *version) {

1152

xmlDocPtr cur;

1153

1154

if (version == NULL)

1155

version = (const xmlChar *) "1.0";

1156

1157

/*

1158

* Allocate a new document and fill the fields.

1159

*/

1160

cur = (xmlDocPtr) xmlMalloc(sizeof(xmlDoc));

1161

if (cur == NULL) {

1162

xmlTreeErrMemory("building doc");

1163

return(NULL);

1164

}

1165

memset(cur, 0, sizeof(xmlDoc));

1166

cur->type = XML_DOCUMENT_NODE;

1167

1168

cur->version = xmlStrdup(version);

1169

if (cur->version == NULL) {

1170

xmlTreeErrMemory("building doc");

1171

xmlFree(cur);

1172

return(NULL);

1173

}

1174

cur->standalone = -1;

1175

cur->compression = -1; /* not initialized */

1176

cur->doc = cur;

1177

cur->parseFlags = 0;

1178

cur->properties = XML_DOC_USERBUILT;

1179

/*

1180

* The in memory encoding is always UTF8

1181

* This field will never change and would

1182

* be obsolete if not for binary compatibility.

1183

*/

1184

cur->charset = XML_CHAR_ENCODING_UTF8;

1185

1186

if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))

1187

xmlRegisterNodeDefaultValue((xmlNodePtr)cur);

1188

return(cur);

1189

}

1190

1191

/**

1192

* xmlFreeDoc:

1193

* @cur: pointer to the document

1194

*

1195

* Free up all the structures used by a document, tree included.

1196

*/

1197

void

1198

xmlFreeDoc(xmlDocPtr cur) {

1199

xmlDtdPtr extSubset, intSubset;

1200

xmlDictPtr dict = NULL;

1201

1202

if (cur == NULL) {

1203

#ifdef DEBUG_TREE

1204

xmlGenericError(xmlGenericErrorContext,

1205

"xmlFreeDoc : document == NULL\n");

1206

#endif

1207

return;

1208

}

1209

#ifdef LIBXML_DEBUG_RUNTIME

1210

#ifdef LIBXML_DEBUG_ENABLED

1211

xmlDebugCheckDocument(stderr, cur);

1212

#endif

1213

#endif

1214

1215

if (cur != NULL) dict = cur->dict;

1216

1217

if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))

1218

xmlDeregisterNodeDefaultValue((xmlNodePtr)cur);

1219

1220

/*

1221

* Do this before freeing the children list to avoid ID lookups

1222

*/

1223

if (cur->ids != NULL) xmlFreeIDTable((xmlIDTablePtr) cur->ids);

1224

cur->ids = NULL;

1225

if (cur->refs != NULL) xmlFreeRefTable((xmlRefTablePtr) cur->refs);

1226

cur->refs = NULL;

1227

extSubset = cur->extSubset;

1228

intSubset = cur->intSubset;

1229

if (intSubset == extSubset)

1230

extSubset = NULL;

1231

if (extSubset != NULL) {

1232

xmlUnlinkNode((xmlNodePtr) cur->extSubset);

1233

cur->extSubset = NULL;

1234

xmlFreeDtd(extSubset);

1235

}

1236

if (intSubset != NULL) {

1237

xmlUnlinkNode((xmlNodePtr) cur->intSubset);

1238

cur->intSubset = NULL;

1239

xmlFreeDtd(intSubset);

1240

}

1241

1242

if (cur->children != NULL) xmlFreeNodeList(cur->children);

1243

if (cur->oldNs != NULL) xmlFreeNsList(cur->oldNs);

1244

1245

DICT_FREE(cur->version)

1246

DICT_FREE(cur->name)

1247

DICT_FREE(cur->encoding)

1248

DICT_FREE(cur->URL)

1249

xmlFree(cur);

1250

if (dict) xmlDictFree(dict);

1251

}

1252

1253

/**

1254

* xmlStringLenGetNodeList:

1255

* @doc: the document

1256

* @value: the value of the text

1257

* @len: the length of the string value

1258

*

1259

* Parse the value string and build the node list associated. Should

1260

* produce a flat tree with only TEXTs and ENTITY_REFs.

1261

* Returns a pointer to the first child

1262

*/

1263

xmlNodePtr

1264

xmlStringLenGetNodeList(xmlDocPtr doc, const xmlChar *value, int len) {

1265

xmlNodePtr ret = NULL, last = NULL;

1266

xmlNodePtr node;

1267

xmlChar *val;

1268

const xmlChar *cur = value, *end = cur + len;

1269

const xmlChar *q;

1270

xmlEntityPtr ent;

1271

xmlBufPtr buf;

1272

1273

if (value == NULL) return(NULL);

1274

1275

buf = xmlBufCreateSize(0);

1276

if (buf == NULL) return(NULL);

1277

xmlBufSetAllocationScheme(buf, XML_BUFFER_ALLOC_HYBRID);

1278

1279

q = cur;

1280

while ((cur < end) && (*cur != 0)) {

1281

if (cur[0] == '&') {

1282

int charval = 0;

1283

xmlChar tmp;

1284

1285

/*

1286

* Save the current text.

1287

*/

1288

if (cur != q) {

1289

if (xmlBufAdd(buf, q, cur - q))

1290

goto out;

1291

}

1292

q = cur;

1293

if ((cur + 2 < end) && (cur[1] == '#') && (cur[2] == 'x')) {

1294

cur += 3;

1295

if (cur < end)

1296

tmp = *cur;

1297

else

1298

tmp = 0;

1299

while (tmp != ';') { /* Non input consuming loop */

1300

if ((tmp >= '0') && (tmp <= '9'))

1301

charval = charval * 16 + (tmp - '0');

1302

else if ((tmp >= 'a') && (tmp <= 'f'))

1303

charval = charval * 16 + (tmp - 'a') + 10;

1304

else if ((tmp >= 'A') && (tmp <= 'F'))

1305

charval = charval * 16 + (tmp - 'A') + 10;

1306

else {

1307

xmlTreeErr(XML_TREE_INVALID_HEX, (xmlNodePtr) doc,

1308

NULL);

1309

charval = 0;

1310

break;

1311

}

1312

cur++;

1313

if (cur < end)

1314

tmp = *cur;

1315

else

1316

tmp = 0;

1317

}

1318

if (tmp == ';')

1319

cur++;

1320

q = cur;

1321

} else if ((cur + 1 < end) && (cur[1] == '#')) {

1322

cur += 2;

1323

if (cur < end)

1324

tmp = *cur;

1325

else

1326

tmp = 0;

1327

while (tmp != ';') { /* Non input consuming loops */

1328

if ((tmp >= '0') && (tmp <= '9'))

1329

charval = charval * 10 + (tmp - '0');

1330

else {

1331

xmlTreeErr(XML_TREE_INVALID_DEC, (xmlNodePtr) doc,

1332

NULL);

1333

charval = 0;

1334

break;

1335

}

1336

cur++;

1337

if (cur < end)

1338

tmp = *cur;

1339

else

1340

tmp = 0;

1341

}

1342

if (tmp == ';')

1343

cur++;

1344

q = cur;

1345

} else {

1346

/*

1347

* Read the entity string

1348

*/

1349

cur++;

1350

q = cur;

1351

while ((cur < end) && (*cur != 0) && (*cur != ';')) cur++;

1352

if ((cur >= end) || (*cur == 0)) {

1353

xmlTreeErr(XML_TREE_UNTERMINATED_ENTITY, (xmlNodePtr) doc,

1354

(const char *) q);

1355

goto out;

1356

}

1357

if (cur != q) {

1358

/*

1359

* Predefined entities don't generate nodes

1360

*/

1361

val = xmlStrndup(q, cur - q);

1362

ent = xmlGetDocEntity(doc, val);

1363

if ((ent != NULL) &&

1364

(ent->etype == XML_INTERNAL_PREDEFINED_ENTITY)) {

1365

1366

if (xmlBufCat(buf, ent->content))

1367

goto out;

1368

1369

} else {

1370

/*

1371

* Flush buffer so far

1372

*/

1373

if (!xmlBufIsEmpty(buf)) {

1374

node = xmlNewDocText(doc, NULL);

1375

if (node == NULL) {

1376

if (val != NULL) xmlFree(val);

1377

goto out;

1378

}

1379

node->content = xmlBufDetach(buf);

1380

1381

if (last == NULL) {

1382

last = ret = node;

1383

} else {

1384

last = xmlAddNextSibling(last, node);

1385

}

1386

}

1387

1388

/*

1389

* Create a new REFERENCE_REF node

1390

*/

1391

node = xmlNewReference(doc, val);

1392

if (node == NULL) {

1393

if (val != NULL) xmlFree(val);

1394

goto out;

1395

}

1396

else if ((ent != NULL) && (ent->children == NULL)) {

1397

xmlNodePtr temp;

1398

1399

ent->children = xmlStringGetNodeList(doc,

1400

(const xmlChar*)node->content);

1401

ent->owner = 1;

1402

temp = ent->children;

1403

while (temp) {

1404

temp->parent = (xmlNodePtr)ent;

1405

ent->last = temp;

1406

temp = temp->next;

1407

}

1408

}

1409

if (last == NULL) {

1410

last = ret = node;

1411

} else {

1412

last = xmlAddNextSibling(last, node);

1413

}

1414

}

1415

xmlFree(val);

1416

}

1417

cur++;

1418

q = cur;

1419

}

1420

if (charval != 0) {

1421

xmlChar buffer[10];

1422

int l;

1423

1424

l = xmlCopyCharMultiByte(buffer, charval);

1425

buffer[l] = 0;

1426

1427

if (xmlBufCat(buf, buffer))

1428

goto out;

1429

charval = 0;

1430

}

1431

} else

1432

cur++;

1433

}

1434

1435

if (cur != q) {

1436

/*

1437

* Handle the last piece of text.

1438

*/

1439

if (xmlBufAdd(buf, q, cur - q))

1440

goto out;

1441

}

1442

1443

if (!xmlBufIsEmpty(buf)) {

1444

node = xmlNewDocText(doc, NULL);

1445

if (node == NULL) goto out;

1446

node->content = xmlBufDetach(buf);

1447

1448

if (last == NULL) {

1449

last = ret = node;

1450

} else {

1451

last = xmlAddNextSibling(last, node);

1452

}

1453

} else if (ret == NULL) {

1454

ret = xmlNewDocText(doc, BAD_CAST "");

1455

}

1456

1457

out:

1458

xmlBufFree(buf);

1459

return(ret);

1460

}

1461

1462

/**

1463

* xmlStringGetNodeList:

1464

* @doc: the document

1465

* @value: the value of the attribute

1466

*

1467

* Parse the value string and build the node list associated. Should

1468

* produce a flat tree with only TEXTs and ENTITY_REFs.

1469

* Returns a pointer to the first child

1470

*/

1471

xmlNodePtr

1472

xmlStringGetNodeList(xmlDocPtr doc, const xmlChar *value) {

1473

xmlNodePtr ret = NULL, last = NULL;

1474

xmlNodePtr node;

1475

xmlChar *val;

1476

const xmlChar *cur = value;

1477

const xmlChar *q;

1478

xmlEntityPtr ent;

1479

xmlBufPtr buf;

1480

1481

if (value == NULL) return(NULL);

1482

1483

buf = xmlBufCreateSize(0);

1484

if (buf == NULL) return(NULL);

1485

xmlBufSetAllocationScheme(buf, XML_BUFFER_ALLOC_HYBRID);

1486

1487

q = cur;

1488

while (*cur != 0) {

1489

if (cur[0] == '&') {

1490

int charval = 0;

1491

xmlChar tmp;

1492

1493

/*

1494

* Save the current text.

1495

*/

1496

if (cur != q) {

1497

if (xmlBufAdd(buf, q, cur - q))

1498

goto out;

1499

}

1500

q = cur;

1501

if ((cur[1] == '#') && (cur[2] == 'x')) {

1502

cur += 3;

1503

tmp = *cur;

1504

while (tmp != ';') { /* Non input consuming loop */

1505

if ((tmp >= '0') && (tmp <= '9'))

1506

charval = charval * 16 + (tmp - '0');

1507

else if ((tmp >= 'a') && (tmp <= 'f'))

1508

charval = charval * 16 + (tmp - 'a') + 10;

1509

else if ((tmp >= 'A') && (tmp <= 'F'))

1510

charval = charval * 16 + (tmp - 'A') + 10;

1511

else {

1512

xmlTreeErr(XML_TREE_INVALID_HEX, (xmlNodePtr) doc,

1513

NULL);

1514

charval = 0;

1515

break;

1516

}

1517

cur++;

1518

tmp = *cur;

1519

}

1520

if (tmp == ';')

1521

cur++;

1522

q = cur;

1523

} else if (cur[1] == '#') {

1524

cur += 2;

1525

tmp = *cur;

1526

while (tmp != ';') { /* Non input consuming loops */

1527

if ((tmp >= '0') && (tmp <= '9'))

1528

charval = charval * 10 + (tmp - '0');

1529

else {

1530

xmlTreeErr(XML_TREE_INVALID_DEC, (xmlNodePtr) doc,

1531

NULL);

1532

charval = 0;

1533

break;

1534

}

1535

cur++;

1536

tmp = *cur;

1537

}

1538

if (tmp == ';')

1539

cur++;

1540

q = cur;

1541

} else {

1542

/*

1543

* Read the entity string

1544

*/

1545

cur++;

1546

q = cur;

1547

while ((*cur != 0) && (*cur != ';')) cur++;

1548

if (*cur == 0) {

1549

xmlTreeErr(XML_TREE_UNTERMINATED_ENTITY,

1550

(xmlNodePtr) doc, (const char *) q);

1551

goto out;

1552

}

1553

if (cur != q) {

1554

/*

1555

* Predefined entities don't generate nodes

1556

*/

1557

val = xmlStrndup(q, cur - q);

1558

ent = xmlGetDocEntity(doc, val);

1559

if ((ent != NULL) &&

1560

(ent->etype == XML_INTERNAL_PREDEFINED_ENTITY)) {

1561

1562

if (xmlBufCat(buf, ent->content))

1563

goto out;

1564

1565

} else {

1566

/*

1567

* Flush buffer so far

1568

*/

1569

if (!xmlBufIsEmpty(buf)) {

1570

node = xmlNewDocText(doc, NULL);

1571

node->content = xmlBufDetach(buf);

1572

1573

if (last == NULL) {

1574

last = ret = node;

1575

} else {

1576

last = xmlAddNextSibling(last, node);

1577

}

1578

}

1579

1580

/*

1581

* Create a new REFERENCE_REF node

1582

*/

1583

node = xmlNewReference(doc, val);

1584

if (node == NULL) {

1585

if (val != NULL) xmlFree(val);

1586

goto out;

1587

}

1588

else if ((ent != NULL) && (ent->children == NULL)) {

1589

xmlNodePtr temp;

1590

1591

ent->children = xmlStringGetNodeList(doc,

1592

(const xmlChar*)node->content);

1593

ent->owner = 1;

1594

temp = ent->children;

1595

while (temp) {

1596

temp->parent = (xmlNodePtr)ent;

1597

temp = temp->next;

1598

}

1599

}

1600

if (last == NULL) {

1601

last = ret = node;

1602

} else {

1603

last = xmlAddNextSibling(last, node);

1604

}

1605

}

1606

xmlFree(val);

1607

}

1608

cur++;

1609

q = cur;

1610

}

1611

if (charval != 0) {

1612

xmlChar buffer[10];

1613

int len;

1614

1615

len = xmlCopyCharMultiByte(buffer, charval);

1616

buffer[len] = 0;

1617

1618

if (xmlBufCat(buf, buffer))

1619

goto out;

1620

charval = 0;

1621

}

1622

} else

1623

cur++;

1624

}

1625

if ((cur != q) || (ret == NULL)) {

1626

/*

1627

* Handle the last piece of text.

1628

*/

1629

xmlBufAdd(buf, q, cur - q);

1630

}

1631

1632

if (!xmlBufIsEmpty(buf)) {

1633

node = xmlNewDocText(doc, NULL);

1634

node->content = xmlBufDetach(buf);

1635

1636

if (last == NULL) {

1637

last = ret = node;

1638

} else {

1639

last = xmlAddNextSibling(last, node);

1640

}

1641

}

1642

1643

out:

1644

xmlBufFree(buf);

1645

return(ret);

1646

}

1647

1648

/**

1649

* xmlNodeListGetString:

1650

* @doc: the document

1651

* @list: a Node list

1652

* @inLine: should we replace entity contents or show their external form

1653

*

1654

* Build the string equivalent to the text contained in the Node list

1655

* made of TEXTs and ENTITY_REFs

1656

*

1657

* Returns a pointer to the string copy, the caller must free it with xmlFree().

1658

*/

1659

xmlChar *

1660

xmlNodeListGetString(xmlDocPtr doc, xmlNodePtr list, int inLine)

1661

{

1662

xmlNodePtr node = list;

1663

xmlChar *ret = NULL;

1664

xmlEntityPtr ent;

1665

int attr;

1666

1667

if (list == NULL)

1668

return (NULL);

1669

if ((list->parent != NULL) && (list->parent->type == XML_ATTRIBUTE_NODE))

1670

attr = 1;

1671

else

1672

attr = 0;

1673

1674

while (node != NULL) {

1675

if ((node->type == XML_TEXT_NODE) ||

1676

(node->type == XML_CDATA_SECTION_NODE)) {

1677

if (inLine) {

1678

ret = xmlStrcat(ret, node->content);

1679

} else {

1680

xmlChar *buffer;

1681

1682

if (attr)

1683

buffer = xmlEncodeAttributeEntities(doc, node->content);

1684

else

1685

buffer = xmlEncodeEntitiesReentrant(doc, node->content);

1686

if (buffer != NULL) {

1687

ret = xmlStrcat(ret, buffer);

1688

xmlFree(buffer);

1689

}

1690

}

1691

} else if (node->type == XML_ENTITY_REF_NODE) {

1692

if (inLine) {

1693

ent = xmlGetDocEntity(doc, node->name);

1694

if (ent != NULL) {

1695

xmlChar *buffer;

1696

1697

/* an entity content can be any "well balanced chunk",

1698

* i.e. the result of the content [43] production:

1699

* http://www.w3.org/TR/REC-xml#NT-content.

1700

* So it can contain text, CDATA section or nested

1701

* entity reference nodes (among others).

1702

* -> we recursive call xmlNodeListGetString()

1703

* which handles these types */

1704

buffer = xmlNodeListGetString(doc, ent->children, 1);

1705

if (buffer != NULL) {

1706

ret = xmlStrcat(ret, buffer);

1707

xmlFree(buffer);

1708

}

1709

} else {

1710

ret = xmlStrcat(ret, node->content);

1711

}

1712

} else {

1713

xmlChar buf[2];

1714

1715

buf[0] = '&';

1716

buf[1] = 0;

1717

ret = xmlStrncat(ret, buf, 1);

1718

ret = xmlStrcat(ret, node->name);

1719

buf[0] = ';';

1720

buf[1] = 0;

1721

ret = xmlStrncat(ret, buf, 1);

1722

}

1723

}

1724

#if 0

1725

else {

1726

xmlGenericError(xmlGenericErrorContext,

1727

"xmlGetNodeListString : invalid node type %d\n",

1728

node->type);

1729

}

1730

#endif

1731

node = node->next;

1732

}

1733

return (ret);

1734

}

1735

1736

#ifdef LIBXML_TREE_ENABLED

1737

/**

1738

* xmlNodeListGetRawString:

1739

* @doc: the document

1740

* @list: a Node list

1741

* @inLine: should we replace entity contents or show their external form

1742

*

1743

* Builds the string equivalent to the text contained in the Node list

1744

* made of TEXTs and ENTITY_REFs, contrary to xmlNodeListGetString()

1745

* this function doesn't do any character encoding handling.

1746

*

1747

* Returns a pointer to the string copy, the caller must free it with xmlFree().

1748

*/

1749

xmlChar *

1750

xmlNodeListGetRawString(xmlDocPtr doc, xmlNodePtr list, int inLine)

1751

{

1752

xmlNodePtr node = list;

1753

xmlChar *ret = NULL;

1754

xmlEntityPtr ent;

1755

1756

if (list == NULL)

1757

return (NULL);

1758

1759

while (node != NULL) {

1760

if ((node->type == XML_TEXT_NODE) ||

1761

(node->type == XML_CDATA_SECTION_NODE)) {

1762

if (inLine) {

1763

ret = xmlStrcat(ret, node->content);

1764

} else {

1765

xmlChar *buffer;

1766

1767

buffer = xmlEncodeSpecialChars(doc, node->content);

1768

if (buffer != NULL) {

1769

ret = xmlStrcat(ret, buffer);

1770

xmlFree(buffer);

1771

}

1772

}

1773

} else if (node->type == XML_ENTITY_REF_NODE) {

1774

if (inLine) {

1775

ent = xmlGetDocEntity(doc, node->name);

1776

if (ent != NULL) {

1777

xmlChar *buffer;

1778

1779

/* an entity content can be any "well balanced chunk",

1780

* i.e. the result of the content [43] production:

1781

* http://www.w3.org/TR/REC-xml#NT-content.

1782

* So it can contain text, CDATA section or nested

1783

* entity reference nodes (among others).

1784

* -> we recursive call xmlNodeListGetRawString()

1785

* which handles these types */

1786

buffer =

1787

xmlNodeListGetRawString(doc, ent->children, 1);

1788

if (buffer != NULL) {

1789

ret = xmlStrcat(ret, buffer);

1790

xmlFree(buffer);

1791

}

1792

} else {

1793

ret = xmlStrcat(ret, node->content);

1794

}

1795

} else {

1796

xmlChar buf[2];

1797

1798

buf[0] = '&';

1799

buf[1] = 0;

1800

ret = xmlStrncat(ret, buf, 1);

1801

ret = xmlStrcat(ret, node->name);

1802

buf[0] = ';';

1803

buf[1] = 0;

1804

ret = xmlStrncat(ret, buf, 1);

1805

}

1806

}

1807

#if 0

1808

else {

1809

xmlGenericError(xmlGenericErrorContext,

1810

"xmlGetNodeListString : invalid node type %d\n",

1811

node->type);

1812

}

1813

#endif

1814

node = node->next;

1815

}

1816

return (ret);

1817

}

1818

#endif /* LIBXML_TREE_ENABLED */

1819

1820

static xmlAttrPtr

1821

xmlNewPropInternal(xmlNodePtr node, xmlNsPtr ns,

1822

const xmlChar * name, const xmlChar * value,

1823

int eatname)

1824

{

1825

xmlAttrPtr cur;

1826

xmlDocPtr doc = NULL;

1827

1828

if ((node != NULL) && (node->type != XML_ELEMENT_NODE)) {

1829

if ((eatname == 1) &&

1830

((node->doc == NULL) ||

1831

(!(xmlDictOwns(node->doc->dict, name)))))

1832

xmlFree((xmlChar *) name);

1833

return (NULL);

1834

}

1835

1836

/*

1837

* Allocate a new property and fill the fields.

1838

*/

1839

cur = (xmlAttrPtr) xmlMalloc(sizeof(xmlAttr));

1840

if (cur == NULL) {

1841

if ((eatname == 1) &&

1842

((node == NULL) || (node->doc == NULL) ||

1843

(!(xmlDictOwns(node->doc->dict, name)))))

1844

xmlFree((xmlChar *) name);

1845

xmlTreeErrMemory("building attribute");

1846

return (NULL);

1847

}

1848

memset(cur, 0, sizeof(xmlAttr));

1849

cur->type = XML_ATTRIBUTE_NODE;

1850

1851

cur->parent = node;

1852

if (node != NULL) {

1853

doc = node->doc;

1854

cur->doc = doc;

1855

}

1856

cur->ns = ns;

1857

1858

if (eatname == 0) {

1859

if ((doc != NULL) && (doc->dict != NULL))

1860

cur->name = (xmlChar *) xmlDictLookup(doc->dict, name, -1);

1861

else

1862

cur->name = xmlStrdup(name);

1863

} else

1864

cur->name = name;

1865

1866

if (value != NULL) {

1867

xmlNodePtr tmp;

1868

1869

if(!xmlCheckUTF8(value)) {

1870

xmlTreeErr(XML_TREE_NOT_UTF8, (xmlNodePtr) doc,

1871

NULL);

1872

if (doc != NULL)

1873

doc->encoding = xmlStrdup(BAD_CAST "ISO-8859-1");

1874

}

1875

cur->children = xmlNewDocText(doc, value);

1876

cur->last = NULL;

1877

tmp = cur->children;

1878

while (tmp != NULL) {

1879

tmp->parent = (xmlNodePtr) cur;

1880

if (tmp->next == NULL)

1881

cur->last = tmp;

1882

tmp = tmp->next;

1883

}

1884

}

1885

1886

/*

1887

* Add it at the end to preserve parsing order ...

1888

*/

1889

if (node != NULL) {

1890

if (node->properties == NULL) {

1891

node->properties = cur;

1892

} else {

1893

xmlAttrPtr prev = node->properties;

1894

1895

while (prev->next != NULL)

1896

prev = prev->next;

1897

prev->next = cur;

1898

cur->prev = prev;

1899

}

1900

}

1901

1902

if ((value != NULL) && (node != NULL) &&

1903

(xmlIsID(node->doc, node, cur) == 1))

1904

xmlAddID(NULL, node->doc, value, cur);

1905

1906

if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))

1907

xmlRegisterNodeDefaultValue((xmlNodePtr) cur);

1908

return (cur);

1909

}

1910

1911

#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_HTML_ENABLED) || \

1912

defined(LIBXML_SCHEMAS_ENABLED)

1913

/**

1914

* xmlNewProp:

1915

* @node: the holding node

1916

* @name: the name of the attribute

1917

* @value: the value of the attribute

1918

*

1919

* Create a new property carried by a node.

1920

* Returns a pointer to the attribute

1921

*/

1922

xmlAttrPtr

1923

xmlNewProp(xmlNodePtr node, const xmlChar *name, const xmlChar *value) {

1924

1925

if (name == NULL) {

1926

#ifdef DEBUG_TREE

1927

xmlGenericError(xmlGenericErrorContext,

1928

"xmlNewProp : name == NULL\n");

1929

#endif

1930

return(NULL);

1931

}

1932

1933

return xmlNewPropInternal(node, NULL, name, value, 0);

1934

}

1935

#endif /* LIBXML_TREE_ENABLED */

1936

1937

/**

1938

* xmlNewNsProp:

1939

* @node: the holding node

1940

* @ns: the namespace

1941

* @name: the name of the attribute

1942

* @value: the value of the attribute

1943

*

1944

* Create a new property tagged with a namespace and carried by a node.

1945

* Returns a pointer to the attribute

1946

*/

1947

xmlAttrPtr

1948

xmlNewNsProp(xmlNodePtr node, xmlNsPtr ns, const xmlChar *name,

1949

const xmlChar *value) {

1950

1951

if (name == NULL) {

1952

#ifdef DEBUG_TREE

1953

xmlGenericError(xmlGenericErrorContext,

1954

"xmlNewNsProp : name == NULL\n");

1955

#endif

1956

return(NULL);

1957

}

1958

1959

return xmlNewPropInternal(node, ns, name, value, 0);

1960

}

1961

1962

/**

1963

* xmlNewNsPropEatName:

1964

* @node: the holding node

1965

* @ns: the namespace

1966

* @name: the name of the attribute

1967

* @value: the value of the attribute

1968

*

1969

* Create a new property tagged with a namespace and carried by a node.

1970

* Returns a pointer to the attribute

1971

*/

1972

xmlAttrPtr

1973

xmlNewNsPropEatName(xmlNodePtr node, xmlNsPtr ns, xmlChar *name,

1974

const xmlChar *value) {

1975

1976

if (name == NULL) {

1977

#ifdef DEBUG_TREE

1978

xmlGenericError(xmlGenericErrorContext,

1979

"xmlNewNsPropEatName : name == NULL\n");

1980

#endif

1981

return(NULL);

1982

}

1983

1984

return xmlNewPropInternal(node, ns, name, value, 1);

1985

}

1986

1987

/**

1988

* xmlNewDocProp:

1989

* @doc: the document

1990

* @name: the name of the attribute

1991

* @value: the value of the attribute

1992

*

1993

* Create a new property carried by a document.

1994

* Returns a pointer to the attribute

1995

*/

1996

xmlAttrPtr

1997

xmlNewDocProp(xmlDocPtr doc, const xmlChar *name, const xmlChar *value) {

1998

xmlAttrPtr cur;

1999

2000

if (name == NULL) {

2001

#ifdef DEBUG_TREE

2002

xmlGenericError(xmlGenericErrorContext,

2003

"xmlNewDocProp : name == NULL\n");

2004

#endif

2005

return(NULL);

2006

}

2007

2008

/*

2009

* Allocate a new property and fill the fields.

2010

*/

2011

cur = (xmlAttrPtr) xmlMalloc(sizeof(xmlAttr));

2012

if (cur == NULL) {

2013

xmlTreeErrMemory("building attribute");

2014

return(NULL);

2015

}

2016

memset(cur, 0, sizeof(xmlAttr));

2017

cur->type = XML_ATTRIBUTE_NODE;

2018

2019

if ((doc != NULL) && (doc->dict != NULL))

2020

cur->name = xmlDictLookup(doc->dict, name, -1);

2021

else

2022

cur->name = xmlStrdup(name);

2023

cur->doc = doc;

2024

if (value != NULL) {

2025

xmlNodePtr tmp;

2026

2027

cur->children = xmlStringGetNodeList(doc, value);

2028

cur->last = NULL;

2029

2030

tmp = cur->children;

2031

while (tmp != NULL) {

2032

tmp->parent = (xmlNodePtr) cur;

2033

if (tmp->next == NULL)

2034

cur->last = tmp;

2035

tmp = tmp->next;

2036

}

2037

}

2038

2039

if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))

2040

xmlRegisterNodeDefaultValue((xmlNodePtr)cur);

2041

return(cur);

2042

}

2043

2044

/**

2045

* xmlFreePropList:

2046

* @cur: the first property in the list

2047

*

2048

* Free a property and all its siblings, all the children are freed too.

2049

*/

2050

void

2051

xmlFreePropList(xmlAttrPtr cur) {

2052

xmlAttrPtr next;

2053

if (cur == NULL) return;

2054

while (cur != NULL) {

2055

next = cur->next;

2056

xmlFreeProp(cur);

2057

cur = next;

2058

}

2059

}

2060

2061

/**

2062

* xmlFreeProp:

2063

* @cur: an attribute

2064

*

2065

* Free one attribute, all the content is freed too

2066

*/

2067

void

2068

xmlFreeProp(xmlAttrPtr cur) {

2069

xmlDictPtr dict = NULL;

2070

if (cur == NULL) return;

2071

2072

if (cur->doc != NULL) dict = cur->doc->dict;

2073

2074

if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))

2075

xmlDeregisterNodeDefaultValue((xmlNodePtr)cur);

2076

2077

/* Check for ID removal -> leading to invalid references ! */

2078

if ((cur->doc != NULL) && (cur->atype == XML_ATTRIBUTE_ID)) {

2079

xmlRemoveID(cur->doc, cur);

2080

}

2081

if (cur->children != NULL) xmlFreeNodeList(cur->children);

2082

DICT_FREE(cur->name)

2083

xmlFree(cur);

2084

}

2085

2086

/**

2087

* xmlRemoveProp:

2088

* @cur: an attribute

2089

*

2090

* Unlink and free one attribute, all the content is freed too

2091

* Note this doesn't work for namespace definition attributes

2092

*

2093

* Returns 0 if success and -1 in case of error.

2094

*/

2095

int

2096

xmlRemoveProp(xmlAttrPtr cur) {

2097

xmlAttrPtr tmp;

2098

if (cur == NULL) {

2099

#ifdef DEBUG_TREE

2100

xmlGenericError(xmlGenericErrorContext,

2101

"xmlRemoveProp : cur == NULL\n");

2102

#endif

2103

return(-1);

2104

}

2105

if (cur->parent == NULL) {

2106

#ifdef DEBUG_TREE

2107

xmlGenericError(xmlGenericErrorContext,

2108

"xmlRemoveProp : cur->parent == NULL\n");

2109

#endif

2110

return(-1);

2111

}

2112

tmp = cur->parent->properties;

2113

if (tmp == cur) {

2114

cur->parent->properties = cur->next;

2115

if (cur->next != NULL)

2116

cur->next->prev = NULL;

2117

xmlFreeProp(cur);

2118

return(0);

2119

}

2120

while (tmp != NULL) {

2121

if (tmp->next == cur) {

2122

tmp->next = cur->next;

2123

if (tmp->next != NULL)

2124

tmp->next->prev = tmp;

2125

xmlFreeProp(cur);

2126

return(0);

2127

}

2128

tmp = tmp->next;

2129

}

2130

#ifdef DEBUG_TREE

2131

xmlGenericError(xmlGenericErrorContext,

2132

"xmlRemoveProp : attribute not owned by its node\n");

2133

#endif

2134

return(-1);

2135

}

2136

2137

/**

2138

* xmlNewDocPI:

2139

* @doc: the target document

2140

* @name: the processing instruction name

2141

* @content: the PI content

2142

*

2143

* Creation of a processing instruction element.

2144

* Returns a pointer to the new node object.

2145

*/

2146

xmlNodePtr

2147

xmlNewDocPI(xmlDocPtr doc, const xmlChar *name, const xmlChar *content) {

2148

xmlNodePtr cur;

2149

2150

if (name == NULL) {

2151

#ifdef DEBUG_TREE

2152

xmlGenericError(xmlGenericErrorContext,

2153

"xmlNewPI : name == NULL\n");

2154

#endif

2155

return(NULL);

2156

}

2157

2158

/*

2159

* Allocate a new node and fill the fields.

2160

*/

2161

cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));

2162

if (cur == NULL) {

2163

xmlTreeErrMemory("building PI");

2164

return(NULL);

2165

}

2166

memset(cur, 0, sizeof(xmlNode));

2167

cur->type = XML_PI_NODE;

2168

2169

if ((doc != NULL) && (doc->dict != NULL))

2170

cur->name = xmlDictLookup(doc->dict, name, -1);

2171

else

2172

cur->name = xmlStrdup(name);

2173

if (content != NULL) {

2174

cur->content = xmlStrdup(content);

2175

}

2176

cur->doc = doc;

2177

2178

if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))

2179

xmlRegisterNodeDefaultValue((xmlNodePtr)cur);

2180

return(cur);

2181

}

2182

2183

/**

2184

* xmlNewPI:

2185

* @name: the processing instruction name

2186

* @content: the PI content

2187

*

2188

* Creation of a processing instruction element.

2189

* Use xmlDocNewPI preferably to get string interning

2190

*

2191

* Returns a pointer to the new node object.

2192

*/

2193

xmlNodePtr

2194

xmlNewPI(const xmlChar *name, const xmlChar *content) {

2195

return(xmlNewDocPI(NULL, name, content));

2196

}

2197

2198

/**

2199

* xmlNewNode:

2200

* @ns: namespace if any

2201

* @name: the node name

2202

*

2203

* Creation of a new node element. @ns is optional (NULL).

2204

*

2205

* Returns a pointer to the new node object. Uses xmlStrdup() to make

2206

* copy of @name.

2207

*/

2208

xmlNodePtr

2209

xmlNewNode(xmlNsPtr ns, const xmlChar *name) {

2210

xmlNodePtr cur;

2211

2212

if (name == NULL) {

2213

#ifdef DEBUG_TREE

2214

xmlGenericError(xmlGenericErrorContext,

2215

"xmlNewNode : name == NULL\n");

2216

#endif

2217

return(NULL);

2218

}

2219

2220

/*

2221

* Allocate a new node and fill the fields.

2222

*/

2223

cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));

2224

if (cur == NULL) {

2225

xmlTreeErrMemory("building node");

2226

return(NULL);

2227

}

2228

memset(cur, 0, sizeof(xmlNode));

2229

cur->type = XML_ELEMENT_NODE;

2230

2231

cur->name = xmlStrdup(name);

2232

cur->ns = ns;

2233

2234

if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))

2235

xmlRegisterNodeDefaultValue(cur);

2236

return(cur);

2237

}

2238

2239

/**

2240

* xmlNewNodeEatName:

2241

* @ns: namespace if any

2242

* @name: the node name

2243

*

2244

* Creation of a new node element. @ns is optional (NULL).

2245

*

2246

* Returns a pointer to the new node object, with pointer @name as

2247

* new node's name. Use xmlNewNode() if a copy of @name string is

2248

* is needed as new node's name.

2249

*/

2250

xmlNodePtr

2251

xmlNewNodeEatName(xmlNsPtr ns, xmlChar *name) {

2252

xmlNodePtr cur;

2253

2254

if (name == NULL) {

2255

#ifdef DEBUG_TREE

2256

xmlGenericError(xmlGenericErrorContext,

2257

"xmlNewNode : name == NULL\n");

2258

#endif

2259

return(NULL);

2260

}

2261

2262

/*

2263

* Allocate a new node and fill the fields.

2264

*/

2265

cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));

2266

if (cur == NULL) {

2267

xmlTreeErrMemory("building node");

2268

/* we can't check here that name comes from the doc dictionnary */

2269

return(NULL);

2270

}

2271

memset(cur, 0, sizeof(xmlNode));

2272

cur->type = XML_ELEMENT_NODE;

2273

2274

cur->name = name;

2275

cur->ns = ns;

2276

2277

if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))

2278

xmlRegisterNodeDefaultValue((xmlNodePtr)cur);

2279

return(cur);

2280

}

2281

2282

/**

2283

* xmlNewDocNode:

2284

* @doc: the document

2285

* @ns: namespace if any

2286

* @name: the node name

2287

* @content: the XML text content if any

2288

*

2289

* Creation of a new node element within a document. @ns and @content

2290

* are optional (NULL).

2291

* NOTE: @content is supposed to be a piece of XML CDATA, so it allow entities

2292

* references, but XML special chars need to be escaped first by using

2293

* xmlEncodeEntitiesReentrant(). Use xmlNewDocRawNode() if you don't

2294

* need entities support.

2295

*

2296

* Returns a pointer to the new node object.

2297

*/

2298

xmlNodePtr

2299

xmlNewDocNode(xmlDocPtr doc, xmlNsPtr ns,

2300

const xmlChar *name, const xmlChar *content) {

2301

xmlNodePtr cur;

2302

2303

if ((doc != NULL) && (doc->dict != NULL))

2304

cur = xmlNewNodeEatName(ns, (xmlChar *)

2305

xmlDictLookup(doc->dict, name, -1));

2306

else

2307

cur = xmlNewNode(ns, name);

2308

if (cur != NULL) {

2309

cur->doc = doc;

2310

if (content != NULL) {

2311

cur->children = xmlStringGetNodeList(doc, content);

2312

UPDATE_LAST_CHILD_AND_PARENT(cur)

2313

}

2314

}

2315

2316

return(cur);

2317

}

2318

2319

/**

2320

* xmlNewDocNodeEatName:

2321

* @doc: the document

2322

* @ns: namespace if any

2323

* @name: the node name

2324

* @content: the XML text content if any

2325

*

2326

* Creation of a new node element within a document. @ns and @content

2327

* are optional (NULL).

2328

* NOTE: @content is supposed to be a piece of XML CDATA, so it allow entities

2329

* references, but XML special chars need to be escaped first by using

2330

* xmlEncodeEntitiesReentrant(). Use xmlNewDocRawNode() if you don't

2331

* need entities support.

2332

*

2333

* Returns a pointer to the new node object.

2334

*/

2335

xmlNodePtr

2336

xmlNewDocNodeEatName(xmlDocPtr doc, xmlNsPtr ns,

2337

xmlChar *name, const xmlChar *content) {

2338

xmlNodePtr cur;

2339

2340

cur = xmlNewNodeEatName(ns, name);

2341

if (cur != NULL) {

2342

cur->doc = doc;

2343

if (content != NULL) {

2344

cur->children = xmlStringGetNodeList(doc, content);

2345

UPDATE_LAST_CHILD_AND_PARENT(cur)

2346

}

2347

} else {

2348

/* if name don't come from the doc dictionnary free it here */

2349

if ((name != NULL) && (doc != NULL) &&

2350

(!(xmlDictOwns(doc->dict, name))))

2351

xmlFree(name);

2352

}

2353

return(cur);

2354

}

2355

2356

#ifdef LIBXML_TREE_ENABLED

2357

/**

2358

* xmlNewDocRawNode:

2359

* @doc: the document

2360

* @ns: namespace if any

2361

* @name: the node name

2362

* @content: the text content if any

2363

*

2364

* Creation of a new node element within a document. @ns and @content

2365

* are optional (NULL).

2366

*

2367

* Returns a pointer to the new node object.

2368

*/

2369

xmlNodePtr

2370

xmlNewDocRawNode(xmlDocPtr doc, xmlNsPtr ns,

2371

const xmlChar *name, const xmlChar *content) {

2372

xmlNodePtr cur;

2373

2374

cur = xmlNewDocNode(doc, ns, name, NULL);

2375

if (cur != NULL) {

2376

cur->doc = doc;

2377

if (content != NULL) {

2378

cur->children = xmlNewDocText(doc, content);

2379

UPDATE_LAST_CHILD_AND_PARENT(cur)

2380

}

2381

}

2382

return(cur);

2383

}

2384

2385

/**

2386

* xmlNewDocFragment:

2387

* @doc: the document owning the fragment

2388

*

2389

* Creation of a new Fragment node.

2390

* Returns a pointer to the new node object.

2391

*/

2392

xmlNodePtr

2393

xmlNewDocFragment(xmlDocPtr doc) {

2394

xmlNodePtr cur;

2395

2396

/*

2397

* Allocate a new DocumentFragment node and fill the fields.

2398

*/

2399

cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));

2400

if (cur == NULL) {

2401

xmlTreeErrMemory("building fragment");

2402

return(NULL);

2403

}

2404

memset(cur, 0, sizeof(xmlNode));

2405

cur->type = XML_DOCUMENT_FRAG_NODE;

2406

2407

cur->doc = doc;

2408

2409

if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))

2410

xmlRegisterNodeDefaultValue(cur);

2411

return(cur);

2412

}

2413

#endif /* LIBXML_TREE_ENABLED */

2414

2415

/**

2416

* xmlNewText:

2417

* @content: the text content

2418

*

2419

* Creation of a new text node.

2420

* Returns a pointer to the new node object.

2421

*/

2422

xmlNodePtr

2423

xmlNewText(const xmlChar *content) {

2424

xmlNodePtr cur;

2425

2426

/*

2427

* Allocate a new node and fill the fields.

2428

*/

2429

cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));

2430

if (cur == NULL) {

2431

xmlTreeErrMemory("building text");

2432

return(NULL);

2433

}

2434

memset(cur, 0, sizeof(xmlNode));

2435

cur->type = XML_TEXT_NODE;

2436

2437

cur->name = xmlStringText;

2438

if (content != NULL) {

2439

cur->content = xmlStrdup(content);

2440

}

2441

2442

if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))

2443

xmlRegisterNodeDefaultValue(cur);

2444

return(cur);

2445

}

2446

2447

#ifdef LIBXML_TREE_ENABLED

2448

/**

2449

* xmlNewTextChild:

2450

* @parent: the parent node

2451

* @ns: a namespace if any

2452

* @name: the name of the child

2453

* @content: the text content of the child if any.

2454

*

2455

* Creation of a new child element, added at the end of @parent children list.

2456

* @ns and @content parameters are optional (NULL). If @ns is NULL, the newly

2457

* created element inherits the namespace of @parent. If @content is non NULL,

2458

* a child TEXT node will be created containing the string @content.

2459

* NOTE: Use xmlNewChild() if @content will contain entities that need to be

2460

* preserved. Use this function, xmlNewTextChild(), if you need to ensure that

2461

* reserved XML chars that might appear in @content, such as the ampersand,

2462

* greater-than or less-than signs, are automatically replaced by their XML

2463

* escaped entity representations.

2464

*

2465

* Returns a pointer to the new node object.

2466

*/

2467

xmlNodePtr

2468

xmlNewTextChild(xmlNodePtr parent, xmlNsPtr ns,

2469

const xmlChar *name, const xmlChar *content) {

2470

xmlNodePtr cur, prev;

2471

2472

if (parent == NULL) {

2473

#ifdef DEBUG_TREE

2474

xmlGenericError(xmlGenericErrorContext,

2475

"xmlNewTextChild : parent == NULL\n");

2476

#endif

2477

return(NULL);

2478

}

2479

2480

if (name == NULL) {

2481

#ifdef DEBUG_TREE

2482

xmlGenericError(xmlGenericErrorContext,

2483

"xmlNewTextChild : name == NULL\n");

2484

#endif

2485

return(NULL);

2486

}

2487

2488

/*

2489

* Allocate a new node

2490

*/

2491

if (parent->type == XML_ELEMENT_NODE) {

2492

if (ns == NULL)

2493

cur = xmlNewDocRawNode(parent->doc, parent->ns, name, content);

2494

else

2495

cur = xmlNewDocRawNode(parent->doc, ns, name, content);

2496

} else if ((parent->type == XML_DOCUMENT_NODE) ||

2497

(parent->type == XML_HTML_DOCUMENT_NODE)) {

2498

if (ns == NULL)

2499

cur = xmlNewDocRawNode((xmlDocPtr) parent, NULL, name, content);

2500

else

2501

cur = xmlNewDocRawNode((xmlDocPtr) parent, ns, name, content);

2502

} else if (parent->type == XML_DOCUMENT_FRAG_NODE) {

2503

cur = xmlNewDocRawNode( parent->doc, ns, name, content);

2504

} else {

2505

return(NULL);

2506

}

2507

if (cur == NULL) return(NULL);

2508

2509

/*

2510

* add the new element at the end of the children list.

2511

*/

2512

cur->type = XML_ELEMENT_NODE;

2513

cur->parent = parent;

2514

cur->doc = parent->doc;

2515

if (parent->children == NULL) {

2516

parent->children = cur;

2517

parent->last = cur;

2518

} else {

2519

prev = parent->last;

2520

prev->next = cur;

2521

cur->prev = prev;

2522

parent->last = cur;

2523

}

2524

2525

return(cur);

2526

}

2527

#endif /* LIBXML_TREE_ENABLED */

2528

2529

/**

2530

* xmlNewCharRef:

2531

* @doc: the document

2532

* @name: the char ref string, starting with # or "&# ... ;"

2533

*

2534

* Creation of a new character reference node.

2535

* Returns a pointer to the new node object.

2536

*/

2537

xmlNodePtr

2538

xmlNewCharRef(xmlDocPtr doc, const xmlChar *name) {

2539

xmlNodePtr cur;

2540

2541

if (name == NULL)

2542

return(NULL);

2543

2544

/*

2545

* Allocate a new node and fill the fields.

2546

*/

2547

cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));

2548

if (cur == NULL) {

2549

xmlTreeErrMemory("building character reference");

2550

return(NULL);

2551

}

2552

memset(cur, 0, sizeof(xmlNode));

2553

cur->type = XML_ENTITY_REF_NODE;

2554

2555

cur->doc = doc;

2556

if (name[0] == '&') {

2557

int len;

2558

name++;

2559

len = xmlStrlen(name);

2560

if (name[len - 1] == ';')

2561

cur->name = xmlStrndup(name, len - 1);

2562

else

2563

cur->name = xmlStrndup(name, len);

2564

} else

2565

cur->name = xmlStrdup(name);

2566

2567

if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))

2568

xmlRegisterNodeDefaultValue(cur);

2569

return(cur);

2570

}

2571

2572

/**

2573

* xmlNewReference:

2574

* @doc: the document

2575

* @name: the reference name, or the reference string with & and ;

2576

*

2577

* Creation of a new reference node.

2578

* Returns a pointer to the new node object.

2579

*/

2580

xmlNodePtr

2581

xmlNewReference(xmlDocPtr doc, const xmlChar *name) {

2582

xmlNodePtr cur;

2583

xmlEntityPtr ent;

2584

2585

if (name == NULL)

2586

return(NULL);

2587

2588

/*

2589

* Allocate a new node and fill the fields.

2590

*/

2591

cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));

2592

if (cur == NULL) {

2593

xmlTreeErrMemory("building reference");

2594

return(NULL);

2595

}

2596

memset(cur, 0, sizeof(xmlNode));

2597

cur->type = XML_ENTITY_REF_NODE;

2598

2599

cur->doc = doc;

2600

if (name[0] == '&') {

2601

int len;

2602

name++;

2603

len = xmlStrlen(name);

2604

if (name[len - 1] == ';')

2605

cur->name = xmlStrndup(name, len - 1);

2606

else

2607

cur->name = xmlStrndup(name, len);

2608

} else

2609

cur->name = xmlStrdup(name);

2610

2611

ent = xmlGetDocEntity(doc, cur->name);

2612

if (ent != NULL) {

2613

cur->content = ent->content;

2614

/*

2615

* The parent pointer in entity is a DTD pointer and thus is NOT

2616

* updated. Not sure if this is 100% correct.

2617

* -George

2618

*/

2619

cur->children = (xmlNodePtr) ent;

2620

cur->last = (xmlNodePtr) ent;

2621

}

2622

2623

if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))

2624

xmlRegisterNodeDefaultValue(cur);

2625

return(cur);

2626

}

2627

2628

/**

2629

* xmlNewDocText:

2630

* @doc: the document

2631

* @content: the text content

2632

*

2633

* Creation of a new text node within a document.

2634

* Returns a pointer to the new node object.

2635

*/

2636

xmlNodePtr

2637

xmlNewDocText(xmlDocPtr doc, const xmlChar *content) {

2638

xmlNodePtr cur;

2639

2640

cur = xmlNewText(content);

2641

if (cur != NULL) cur->doc = doc;

2642

return(cur);

2643

}

2644

2645

/**

2646

* xmlNewTextLen:

2647

* @content: the text content

2648

* @len: the text len.

2649

*

2650

* Creation of a new text node with an extra parameter for the content's length

2651

* Returns a pointer to the new node object.

2652

*/

2653

xmlNodePtr

2654

xmlNewTextLen(const xmlChar *content, int len) {

2655

xmlNodePtr cur;

2656

2657

/*

2658

* Allocate a new node and fill the fields.

2659

*/

2660

cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));

2661

if (cur == NULL) {

2662

xmlTreeErrMemory("building text");

2663

return(NULL);

2664

}

2665

memset(cur, 0, sizeof(xmlNode));

2666

cur->type = XML_TEXT_NODE;

2667

2668

cur->name = xmlStringText;

2669

if (content != NULL) {

2670

cur->content = xmlStrndup(content, len);

2671

}

2672

2673

if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))

2674

xmlRegisterNodeDefaultValue(cur);

2675

return(cur);

2676

}

2677

2678

/**

2679

* xmlNewDocTextLen:

2680

* @doc: the document

2681

* @content: the text content

2682

* @len: the text len.

2683

*

2684

* Creation of a new text node with an extra content length parameter. The

2685

* text node pertain to a given document.

2686

* Returns a pointer to the new node object.

2687

*/

2688

xmlNodePtr

2689

xmlNewDocTextLen(xmlDocPtr doc, const xmlChar *content, int len) {

2690

xmlNodePtr cur;

2691

2692

cur = xmlNewTextLen(content, len);

2693

if (cur != NULL) cur->doc = doc;

2694

return(cur);

2695

}

2696

2697

/**

2698

* xmlNewComment:

2699

* @content: the comment content

2700

*

2701

* Creation of a new node containing a comment.

2702

* Returns a pointer to the new node object.

2703

*/

2704

xmlNodePtr

2705

xmlNewComment(const xmlChar *content) {

2706

xmlNodePtr cur;

2707

2708

/*

2709

* Allocate a new node and fill the fields.

2710

*/

2711

cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));

2712

if (cur == NULL) {

2713

xmlTreeErrMemory("building comment");

2714

return(NULL);

2715

}

2716

memset(cur, 0, sizeof(xmlNode));

2717

cur->type = XML_COMMENT_NODE;

2718

2719

cur->name = xmlStringComment;

2720

if (content != NULL) {

2721

cur->content = xmlStrdup(content);

2722

}

2723

2724

if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))

2725

xmlRegisterNodeDefaultValue(cur);

2726

return(cur);

2727

}

2728

2729

/**

2730

* xmlNewCDataBlock:

2731

* @doc: the document

2732

* @content: the CDATA block content content

2733

* @len: the length of the block

2734

*

2735

* Creation of a new node containing a CDATA block.

2736

* Returns a pointer to the new node object.

2737

*/

2738

xmlNodePtr

2739

xmlNewCDataBlock(xmlDocPtr doc, const xmlChar *content, int len) {

2740

xmlNodePtr cur;

2741

2742

/*

2743

* Allocate a new node and fill the fields.

2744

*/

2745

cur = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));

2746

if (cur == NULL) {

2747

xmlTreeErrMemory("building CDATA");

2748

return(NULL);

2749

}

2750

memset(cur, 0, sizeof(xmlNode));

2751

cur->type = XML_CDATA_SECTION_NODE;

2752

cur->doc = doc;

2753

2754

if (content != NULL) {

2755

cur->content = xmlStrndup(content, len);

2756

}

2757

2758

if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))

2759

xmlRegisterNodeDefaultValue(cur);

2760

return(cur);

2761

}

2762

2763

/**

2764

* xmlNewDocComment:

2765

* @doc: the document

2766

* @content: the comment content

2767

*

2768

* Creation of a new node containing a comment within a document.

2769

* Returns a pointer to the new node object.

2770

*/

2771

xmlNodePtr

2772

xmlNewDocComment(xmlDocPtr doc, const xmlChar *content) {

2773

xmlNodePtr cur;

2774

2775

cur = xmlNewComment(content);

2776

if (cur != NULL) cur->doc = doc;

2777

return(cur);

2778

}

2779

2780

/**

2781

* xmlSetTreeDoc:

2782

* @tree: the top element

2783

* @doc: the document

2784

*

2785

* update all nodes under the tree to point to the right document

2786

*/

2787

void

2788

xmlSetTreeDoc(xmlNodePtr tree, xmlDocPtr doc) {

2789

xmlAttrPtr prop;

2790

2791

if ((tree == NULL) || (tree->type == XML_NAMESPACE_DECL))

2792

return;

2793

if (tree->doc != doc) {

2794

if(tree->type == XML_ELEMENT_NODE) {

2795

prop = tree->properties;

2796

while (prop != NULL) {

2797

prop->doc = doc;

2798

xmlSetListDoc(prop->children, doc);

2799

prop = prop->next;

2800

}

2801

}

2802

if (tree->children != NULL)

2803

xmlSetListDoc(tree->children, doc);

2804

tree->doc = doc;

2805

}

2806

}

2807

2808

/**

2809

* xmlSetListDoc:

2810

* @list: the first element

2811

* @doc: the document

2812

*

2813

* update all nodes in the list to point to the right document

2814

*/

2815

void

2816

xmlSetListDoc(xmlNodePtr list, xmlDocPtr doc) {

2817

xmlNodePtr cur;

2818

2819

if ((list == NULL) || (list->type == XML_NAMESPACE_DECL))

2820

return;

2821

cur = list;

2822

while (cur != NULL) {

2823

if (cur->doc != doc)

2824

xmlSetTreeDoc(cur, doc);

2825

cur = cur->next;

2826

}

2827

}

2828

2829

#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)

2830

/**

2831

* xmlNewChild:

2832

* @parent: the parent node

2833

* @ns: a namespace if any

2834

* @name: the name of the child

2835

* @content: the XML content of the child if any.

2836

*

2837

* Creation of a new child element, added at the end of @parent children list.

2838

* @ns and @content parameters are optional (NULL). If @ns is NULL, the newly

2839

* created element inherits the namespace of @parent. If @content is non NULL,

2840

* a child list containing the TEXTs and ENTITY_REFs node will be created.

2841

* NOTE: @content is supposed to be a piece of XML CDATA, so it allows entity

2842

* references. XML special chars must be escaped first by using

2843

* xmlEncodeEntitiesReentrant(), or xmlNewTextChild() should be used.

2844

*

2845

* Returns a pointer to the new node object.

2846

*/

2847

xmlNodePtr

2848

xmlNewChild(xmlNodePtr parent, xmlNsPtr ns,

2849

const xmlChar *name, const xmlChar *content) {

2850

xmlNodePtr cur, prev;

2851

2852

if (parent == NULL) {

2853

#ifdef DEBUG_TREE

2854

xmlGenericError(xmlGenericErrorContext,

2855

"xmlNewChild : parent == NULL\n");

2856

#endif

2857

return(NULL);

2858

}

2859

2860

if (name == NULL) {

2861

#ifdef DEBUG_TREE

2862

xmlGenericError(xmlGenericErrorContext,

2863

"xmlNewChild : name == NULL\n");

2864

#endif

2865

return(NULL);

2866

}

2867

2868

/*

2869

* Allocate a new node

2870

*/

2871

if (parent->type == XML_ELEMENT_NODE) {

2872

if (ns == NULL)

2873

cur = xmlNewDocNode(parent->doc, parent->ns, name, content);

2874

else

2875

cur = xmlNewDocNode(parent->doc, ns, name, content);

2876

} else if ((parent->type == XML_DOCUMENT_NODE) ||

2877

(parent->type == XML_HTML_DOCUMENT_NODE)) {

2878

if (ns == NULL)

2879

cur = xmlNewDocNode((xmlDocPtr) parent, NULL, name, content);

2880

else

2881

cur = xmlNewDocNode((xmlDocPtr) parent, ns, name, content);

2882

} else if (parent->type == XML_DOCUMENT_FRAG_NODE) {

2883

cur = xmlNewDocNode( parent->doc, ns, name, content);

2884

} else {

2885

return(NULL);

2886

}

2887

if (cur == NULL) return(NULL);

2888

2889

/*

2890

* add the new element at the end of the children list.

2891

*/

2892

cur->type = XML_ELEMENT_NODE;

2893

cur->parent = parent;

2894

cur->doc = parent->doc;

2895

if (parent->children == NULL) {

2896

parent->children = cur;

2897

parent->last = cur;

2898

} else {

2899

prev = parent->last;

2900

prev->next = cur;

2901

cur->prev = prev;

2902

parent->last = cur;

2903

}

2904

2905

return(cur);

2906

}

2907

#endif /* LIBXML_TREE_ENABLED */

2908

2909

/**

2910

* xmlAddPropSibling:

2911

* @prev: the attribute to which @prop is added after

2912

* @cur: the base attribute passed to calling function

2913

* @prop: the new attribute

2914

*

2915

* Add a new attribute after @prev using @cur as base attribute.

2916

* When inserting before @cur, @prev is passed as @cur->prev.

2917

* When inserting after @cur, @prev is passed as @cur.

2918

* If an existing attribute is found it is detroyed prior to adding @prop.

2919

*

2920

* Returns the attribute being inserted or NULL in case of error.

2921

*/

2922

static xmlNodePtr

2923

xmlAddPropSibling(xmlNodePtr prev, xmlNodePtr cur, xmlNodePtr prop) {

2924

xmlAttrPtr attr;

2925

2926

if ((cur == NULL) || (cur->type != XML_ATTRIBUTE_NODE) ||

2927

(prop == NULL) || (prop->type != XML_ATTRIBUTE_NODE) ||

2928

((prev != NULL) && (prev->type != XML_ATTRIBUTE_NODE)))

2929

return(NULL);

2930

2931

/* check if an attribute with the same name exists */

2932

if (prop->ns == NULL)

2933

attr = xmlHasNsProp(cur->parent, prop->name, NULL);

2934

else

2935

attr = xmlHasNsProp(cur->parent, prop->name, prop->ns->href);

2936

2937

if (prop->doc != cur->doc) {

2938

xmlSetTreeDoc(prop, cur->doc);

2939

}

2940

prop->parent = cur->parent;

2941

prop->prev = prev;

2942

if (prev != NULL) {

2943

prop->next = prev->next;

2944

prev->next = prop;

2945

if (prop->next)

2946

prop->next->prev = prop;

2947

} else {

2948

prop->next = cur;

2949

cur->prev = prop;

2950

}

2951

if (prop->prev == NULL && prop->parent != NULL)

2952

prop->parent->properties = (xmlAttrPtr) prop;

2953

if ((attr != NULL) && (attr->type != XML_ATTRIBUTE_DECL)) {

2954

/* different instance, destroy it (attributes must be unique) */

2955

xmlRemoveProp((xmlAttrPtr) attr);

2956

}

2957

return prop;

2958

}

2959

2960

/**

2961

* xmlAddNextSibling:

2962

* @cur: the child node

2963

* @elem: the new node

2964

*

2965

* Add a new node @elem as the next sibling of @cur

2966

* If the new node was already inserted in a document it is

2967

* first unlinked from its existing context.

2968

* As a result of text merging @elem may be freed.

2969

* If the new node is ATTRIBUTE, it is added into properties instead of children.

2970

* If there is an attribute with equal name, it is first destroyed.

2971

*

2972

* Returns the new node or NULL in case of error.

2973

*/

2974

xmlNodePtr

2975

xmlAddNextSibling(xmlNodePtr cur, xmlNodePtr elem) {

2976

if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL)) {

2977

#ifdef DEBUG_TREE

2978

xmlGenericError(xmlGenericErrorContext,

2979

"xmlAddNextSibling : cur == NULL\n");

2980

#endif

2981

return(NULL);

2982

}

2983

if ((elem == NULL) || (elem->type == XML_NAMESPACE_DECL)) {

2984

#ifdef DEBUG_TREE

2985

xmlGenericError(xmlGenericErrorContext,

2986

"xmlAddNextSibling : elem == NULL\n");

2987

#endif

2988

return(NULL);

2989

}

2990

2991

if (cur == elem) {

2992

#ifdef DEBUG_TREE

2993

xmlGenericError(xmlGenericErrorContext,

2994

"xmlAddNextSibling : cur == elem\n");

2995

#endif

2996

return(NULL);

2997

}

2998

2999

xmlUnlinkNode(elem);

3000

3001

if (elem->type == XML_TEXT_NODE) {

3002

if (cur->type == XML_TEXT_NODE) {

3003

xmlNodeAddContent(cur, elem->content);

3004

xmlFreeNode(elem);

3005

return(cur);

3006

}

3007

if ((cur->next != NULL) && (cur->next->type == XML_TEXT_NODE) &&

3008

(cur->name == cur->next->name)) {

3009

xmlChar *tmp;

3010

3011

tmp = xmlStrdup(elem->content);

3012

tmp = xmlStrcat(tmp, cur->next->content);

3013

xmlNodeSetContent(cur->next, tmp);

3014

xmlFree(tmp);

3015

xmlFreeNode(elem);

3016

return(cur->next);

3017

}

3018

} else if (elem->type == XML_ATTRIBUTE_NODE) {

3019

return xmlAddPropSibling(cur, cur, elem);

3020

}

3021

3022

if (elem->doc != cur->doc) {

3023

xmlSetTreeDoc(elem, cur->doc);

3024

}

3025

elem->parent = cur->parent;

3026

elem->prev = cur;

3027

elem->next = cur->next;

3028

cur->next = elem;

3029

if (elem->next != NULL)

3030

elem->next->prev = elem;

3031

if ((elem->parent != NULL) && (elem->parent->last == cur))

3032

elem->parent->last = elem;

3033

return(elem);

3034

}

3035

3036

#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_HTML_ENABLED) || \

3037

defined(LIBXML_SCHEMAS_ENABLED)

3038

/**

3039

* xmlAddPrevSibling:

3040

* @cur: the child node

3041

* @elem: the new node

3042

*

3043

* Add a new node @elem as the previous sibling of @cur

3044

* merging adjacent TEXT nodes (@elem may be freed)

3045

* If the new node was already inserted in a document it is

3046

* first unlinked from its existing context.

3047

* If the new node is ATTRIBUTE, it is added into properties instead of children.

3048

* If there is an attribute with equal name, it is first destroyed.

3049

*

3050

* Returns the new node or NULL in case of error.

3051

*/

3052

xmlNodePtr

3053

xmlAddPrevSibling(xmlNodePtr cur, xmlNodePtr elem) {

3054

if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL)) {

3055

#ifdef DEBUG_TREE

3056

xmlGenericError(xmlGenericErrorContext,

3057

"xmlAddPrevSibling : cur == NULL\n");

3058

#endif

3059

return(NULL);

3060

}

3061

if ((elem == NULL) || (elem->type == XML_NAMESPACE_DECL)) {

3062

#ifdef DEBUG_TREE

3063

xmlGenericError(xmlGenericErrorContext,

3064

"xmlAddPrevSibling : elem == NULL\n");

3065

#endif

3066

return(NULL);

3067

}

3068

3069

if (cur == elem) {

3070

#ifdef DEBUG_TREE

3071

xmlGenericError(xmlGenericErrorContext,

3072

"xmlAddPrevSibling : cur == elem\n");

3073

#endif

3074

return(NULL);

3075

}

3076

3077

xmlUnlinkNode(elem);

3078

3079

if (elem->type == XML_TEXT_NODE) {

3080

if (cur->type == XML_TEXT_NODE) {

3081

xmlChar *tmp;

3082

3083

tmp = xmlStrdup(elem->content);

3084

tmp = xmlStrcat(tmp, cur->content);

3085

xmlNodeSetContent(cur, tmp);

3086

xmlFree(tmp);

3087

xmlFreeNode(elem);

3088

return(cur);

3089

}

3090

if ((cur->prev != NULL) && (cur->prev->type == XML_TEXT_NODE) &&

3091

(cur->name == cur->prev->name)) {

3092

xmlNodeAddContent(cur->prev, elem->content);

3093

xmlFreeNode(elem);

3094

return(cur->prev);

3095

}

3096

} else if (elem->type == XML_ATTRIBUTE_NODE) {

3097

return xmlAddPropSibling(cur->prev, cur, elem);

3098

}

3099

3100

if (elem->doc != cur->doc) {

3101

xmlSetTreeDoc(elem, cur->doc);

3102

}

3103

elem->parent = cur->parent;

3104

elem->next = cur;

3105

elem->prev = cur->prev;

3106

cur->prev = elem;

3107

if (elem->prev != NULL)

3108

elem->prev->next = elem;

3109

if ((elem->parent != NULL) && (elem->parent->children == cur)) {

3110

elem->parent->children = elem;

3111

}

3112

return(elem);

3113

}

3114

#endif /* LIBXML_TREE_ENABLED */

3115

3116

/**

3117

* xmlAddSibling:

3118

* @cur: the child node

3119

* @elem: the new node

3120

*

3121

* Add a new element @elem to the list of siblings of @cur

3122

* merging adjacent TEXT nodes (@elem may be freed)

3123

* If the new element was already inserted in a document it is

3124

* first unlinked from its existing context.

3125

*

3126

* Returns the new element or NULL in case of error.

3127

*/

3128

xmlNodePtr

3129

xmlAddSibling(xmlNodePtr cur, xmlNodePtr elem) {

3130

xmlNodePtr parent;

3131

3132

if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL)) {

3133

#ifdef DEBUG_TREE

3134

xmlGenericError(xmlGenericErrorContext,

3135

"xmlAddSibling : cur == NULL\n");

3136

#endif

3137

return(NULL);

3138

}

3139

3140

if ((elem == NULL) || (elem->type == XML_NAMESPACE_DECL)) {

3141

#ifdef DEBUG_TREE

3142

xmlGenericError(xmlGenericErrorContext,

3143

"xmlAddSibling : elem == NULL\n");

3144

#endif

3145

return(NULL);

3146

}

3147

3148

if (cur == elem) {

3149

#ifdef DEBUG_TREE

3150

xmlGenericError(xmlGenericErrorContext,

3151

"xmlAddSibling : cur == elem\n");

3152

#endif

3153

return(NULL);

3154

}

3155

3156

/*

3157

* Constant time is we can rely on the ->parent->last to find

3158

* the last sibling.

3159

*/

3160

if ((cur->type != XML_ATTRIBUTE_NODE) && (cur->parent != NULL) &&

3161

(cur->parent->children != NULL) &&

3162

(cur->parent->last != NULL) &&

3163

(cur->parent->last->next == NULL)) {

3164

cur = cur->parent->last;

3165

} else {

3166

while (cur->next != NULL) cur = cur->next;

3167

}

3168

3169

xmlUnlinkNode(elem);

3170

3171

if ((cur->type == XML_TEXT_NODE) && (elem->type == XML_TEXT_NODE) &&

3172

(cur->name == elem->name)) {

3173

xmlNodeAddContent(cur, elem->content);

3174

xmlFreeNode(elem);

3175

return(cur);

3176

} else if (elem->type == XML_ATTRIBUTE_NODE) {

3177

return xmlAddPropSibling(cur, cur, elem);

3178

}

3179

3180

if (elem->doc != cur->doc) {

3181

xmlSetTreeDoc(elem, cur->doc);

3182

}

3183

parent = cur->parent;

3184

elem->prev = cur;

3185

elem->next = NULL;

3186

elem->parent = parent;

3187

cur->next = elem;

3188

if (parent != NULL)

3189

parent->last = elem;

3190

3191

return(elem);

3192

}

3193

3194

/**

3195

* xmlAddChildList:

3196

* @parent: the parent node

3197

* @cur: the first node in the list

3198

*

3199

* Add a list of node at the end of the child list of the parent

3200

* merging adjacent TEXT nodes (@cur may be freed)

3201

*

3202

* Returns the last child or NULL in case of error.

3203

*/

3204

xmlNodePtr

3205

xmlAddChildList(xmlNodePtr parent, xmlNodePtr cur) {

3206

xmlNodePtr prev;

3207

3208

if ((parent == NULL) || (parent->type == XML_NAMESPACE_DECL)) {

3209

#ifdef DEBUG_TREE

3210

xmlGenericError(xmlGenericErrorContext,

3211

"xmlAddChildList : parent == NULL\n");

3212

#endif

3213

return(NULL);

3214

}

3215

3216

if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL)) {

3217

#ifdef DEBUG_TREE

3218

xmlGenericError(xmlGenericErrorContext,

3219

"xmlAddChildList : child == NULL\n");

3220

#endif

3221

return(NULL);

3222

}

3223

3224

if ((cur->doc != NULL) && (parent->doc != NULL) &&

3225

(cur->doc != parent->doc)) {

3226

#ifdef DEBUG_TREE

3227

xmlGenericError(xmlGenericErrorContext,

3228

"Elements moved to a different document\n");

3229

#endif

3230

}

3231

3232

/*

3233

* add the first element at the end of the children list.

3234

*/

3235

3236

if (parent->children == NULL) {

3237

parent->children = cur;

3238

} else {

3239

/*

3240

* If cur and parent->last both are TEXT nodes, then merge them.

3241

*/

3242

if ((cur->type == XML_TEXT_NODE) &&

3243

(parent->last->type == XML_TEXT_NODE) &&

3244

(cur->name == parent->last->name)) {

3245

xmlNodeAddContent(parent->last, cur->content);

3246

/*

3247

* if it's the only child, nothing more to be done.

3248

*/

3249

if (cur->next == NULL) {

3250

xmlFreeNode(cur);

3251

return(parent->last);

3252

}

3253

prev = cur;

3254

cur = cur->next;

3255

xmlFreeNode(prev);

3256

}

3257

prev = parent->last;

3258

prev->next = cur;

3259

cur->prev = prev;

3260

}

3261

while (cur->next != NULL) {

3262

cur->parent = parent;

3263

if (cur->doc != parent->doc) {

3264

xmlSetTreeDoc(cur, parent->doc);

3265

}

3266

cur = cur->next;

3267

}

3268

cur->parent = parent;

3269

/* the parent may not be linked to a doc ! */

3270

if (cur->doc != parent->doc) {

3271

xmlSetTreeDoc(cur, parent->doc);

3272

}

3273

parent->last = cur;

3274

3275

return(cur);

3276

}

3277

3278

/**

3279

* xmlAddChild:

3280

* @parent: the parent node

3281

* @cur: the child node

3282

*

3283

* Add a new node to @parent, at the end of the child (or property) list

3284

* merging adjacent TEXT nodes (in which case @cur is freed)

3285

* If the new node is ATTRIBUTE, it is added into properties instead of children.

3286

* If there is an attribute with equal name, it is first destroyed.

3287

*

3288

* Returns the child or NULL in case of error.

3289

*/

3290

xmlNodePtr

3291

xmlAddChild(xmlNodePtr parent, xmlNodePtr cur) {

3292

xmlNodePtr prev;

3293

3294

if ((parent == NULL) || (parent->type == XML_NAMESPACE_DECL)) {

3295

#ifdef DEBUG_TREE

3296

xmlGenericError(xmlGenericErrorContext,

3297

"xmlAddChild : parent == NULL\n");

3298

#endif

3299

return(NULL);

3300

}

3301

3302

if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL)) {

3303

#ifdef DEBUG_TREE

3304

xmlGenericError(xmlGenericErrorContext,

3305

"xmlAddChild : child == NULL\n");

3306

#endif

3307

return(NULL);

3308

}

3309

3310

if (parent == cur) {

3311

#ifdef DEBUG_TREE

3312

xmlGenericError(xmlGenericErrorContext,

3313

"xmlAddChild : parent == cur\n");

3314

#endif

3315

return(NULL);

3316

}

3317

/*

3318

* If cur is a TEXT node, merge its content with adjacent TEXT nodes

3319

* cur is then freed.

3320

*/

3321

if (cur->type == XML_TEXT_NODE) {

3322

if ((parent->type == XML_TEXT_NODE) &&

3323

(parent->content != NULL) &&

3324

(parent->name == cur->name)) {

3325

xmlNodeAddContent(parent, cur->content);

3326

xmlFreeNode(cur);

3327

return(parent);

3328

}

3329

if ((parent->last != NULL) && (parent->last->type == XML_TEXT_NODE) &&

3330

(parent->last->name == cur->name) &&

3331

(parent->last != cur)) {

3332

xmlNodeAddContent(parent->last, cur->content);

3333

xmlFreeNode(cur);

3334

return(parent->last);

3335

}

3336

}

3337

3338

/*

3339

* add the new element at the end of the children list.

3340

*/

3341

prev = cur->parent;

3342

cur->parent = parent;

3343

if (cur->doc != parent->doc) {

3344

xmlSetTreeDoc(cur, parent->doc);

3345

}

3346

/* this check prevents a loop on tree-traversions if a developer

3347

* tries to add a node to its parent multiple times

3348

*/

3349

if (prev == parent)

3350

return(cur);

3351

3352

/*

3353

* Coalescing

3354

*/

3355

if ((parent->type == XML_TEXT_NODE) &&

3356

(parent->content != NULL) &&

3357

(parent != cur)) {

3358

xmlNodeAddContent(parent, cur->content);

3359

xmlFreeNode(cur);

3360

return(parent);

3361

}

3362

if (cur->type == XML_ATTRIBUTE_NODE) {

3363

if (parent->type != XML_ELEMENT_NODE)

3364

return(NULL);

3365

if (parent->properties != NULL) {

3366

/* check if an attribute with the same name exists */

3367

xmlAttrPtr lastattr;

3368

3369

if (cur->ns == NULL)

3370

lastattr = xmlHasNsProp(parent, cur->name, NULL);

3371

else

3372

lastattr = xmlHasNsProp(parent, cur->name, cur->ns->href);

3373

if ((lastattr != NULL) && (lastattr != (xmlAttrPtr) cur) && (lastattr->type != XML_ATTRIBUTE_DECL)) {

3374

/* different instance, destroy it (attributes must be unique) */

3375

xmlUnlinkNode((xmlNodePtr) lastattr);

3376

xmlFreeProp(lastattr);

3377

}

3378

if (lastattr == (xmlAttrPtr) cur)

3379

return(cur);

3380

3381

}

3382

if (parent->properties == NULL) {

3383

parent->properties = (xmlAttrPtr) cur;

3384

} else {

3385

/* find the end */

3386

xmlAttrPtr lastattr = parent->properties;

3387

while (lastattr->next != NULL) {

3388

lastattr = lastattr->next;

3389

}

3390

lastattr->next = (xmlAttrPtr) cur;

3391

((xmlAttrPtr) cur)->prev = lastattr;

3392

}

3393

} else {

3394

if (parent->children == NULL) {

3395

parent->children = cur;

3396

parent->last = cur;

3397

} else {

3398

prev = parent->last;

3399

prev->next = cur;

3400

cur->prev = prev;

3401

parent->last = cur;

3402

}

3403

}

3404

return(cur);

3405

}

3406

3407

/**

3408

* xmlGetLastChild:

3409

* @parent: the parent node

3410

*

3411

* Search the last child of a node.

3412

* Returns the last child or NULL if none.

3413

*/

3414

xmlNodePtr

3415

xmlGetLastChild(xmlNodePtr parent) {

3416

if ((parent == NULL) || (parent->type == XML_NAMESPACE_DECL)) {

3417

#ifdef DEBUG_TREE

3418

xmlGenericError(xmlGenericErrorContext,

3419

"xmlGetLastChild : parent == NULL\n");

3420

#endif

3421

return(NULL);

3422

}

3423

return(parent->last);

3424

}

3425

3426

#ifdef LIBXML_TREE_ENABLED

3427

/*

3428

* 5 interfaces from DOM ElementTraversal

3429

*/

3430

3431

/**

3432

* xmlChildElementCount:

3433

* @parent: the parent node

3434

*

3435

* Finds the current number of child nodes of that element which are

3436

* element nodes.

3437

* Note the handling of entities references is different than in

3438

* the W3C DOM element traversal spec since we don't have back reference

3439

* from entities content to entities references.

3440

*

3441

* Returns the count of element child or 0 if not available

3442

*/

3443

unsigned long

3444

xmlChildElementCount(xmlNodePtr parent) {

3445

unsigned long ret = 0;

3446

xmlNodePtr cur = NULL;

3447

3448

if (parent == NULL)

3449

return(0);

3450

switch (parent->type) {

3451

case XML_ELEMENT_NODE:

3452

case XML_ENTITY_NODE:

3453

case XML_DOCUMENT_NODE:

3454

case XML_HTML_DOCUMENT_NODE:

3455

cur = parent->children;

3456

break;

3457

default:

3458

return(0);

3459

}

3460

while (cur != NULL) {

3461

if (cur->type == XML_ELEMENT_NODE)

3462

ret++;

3463

cur = cur->next;

3464

}

3465

return(ret);

3466

}

3467

3468

/**

3469

* xmlFirstElementChild:

3470

* @parent: the parent node

3471

*

3472

* Finds the first child node of that element which is a Element node

3473

* Note the handling of entities references is different than in

3474

* the W3C DOM element traversal spec since we don't have back reference

3475

* from entities content to entities references.

3476

*

3477

* Returns the first element child or NULL if not available

3478

*/

3479

xmlNodePtr

3480

xmlFirstElementChild(xmlNodePtr parent) {

3481

xmlNodePtr cur = NULL;

3482

3483

if (parent == NULL)

3484

return(NULL);

3485

switch (parent->type) {

3486

case XML_ELEMENT_NODE:

3487

case XML_ENTITY_NODE:

3488

case XML_DOCUMENT_NODE:

3489

case XML_HTML_DOCUMENT_NODE:

3490

cur = parent->children;

3491

break;

3492

default:

3493

return(NULL);

3494

}

3495

while (cur != NULL) {

3496

if (cur->type == XML_ELEMENT_NODE)

3497

return(cur);

3498

cur = cur->next;

3499

}

3500

return(NULL);

3501

}

3502

3503

/**

3504

* xmlLastElementChild:

3505

* @parent: the parent node

3506

*

3507

* Finds the last child node of that element which is a Element node

3508

* Note the handling of entities references is different than in

3509

* the W3C DOM element traversal spec since we don't have back reference

3510

* from entities content to entities references.

3511

*

3512

* Returns the last element child or NULL if not available

3513

*/

3514

xmlNodePtr

3515

xmlLastElementChild(xmlNodePtr parent) {

3516

xmlNodePtr cur = NULL;

3517

3518

if (parent == NULL)

3519

return(NULL);

3520

switch (parent->type) {

3521

case XML_ELEMENT_NODE:

3522

case XML_ENTITY_NODE:

3523

case XML_DOCUMENT_NODE:

3524

case XML_HTML_DOCUMENT_NODE:

3525

cur = parent->last;

3526

break;

3527

default:

3528

return(NULL);

3529

}

3530

while (cur != NULL) {

3531

if (cur->type == XML_ELEMENT_NODE)

3532

return(cur);

3533

cur = cur->prev;

3534

}

3535

return(NULL);

3536

}

3537

3538

/**

3539

* xmlPreviousElementSibling:

3540

* @node: the current node

3541

*

3542

* Finds the first closest previous sibling of the node which is an

3543

* element node.

3544

* Note the handling of entities references is different than in

3545

* the W3C DOM element traversal spec since we don't have back reference

3546

* from entities content to entities references.

3547

*

3548

* Returns the previous element sibling or NULL if not available

3549

*/

3550

xmlNodePtr

3551

xmlPreviousElementSibling(xmlNodePtr node) {

3552

if (node == NULL)

3553

return(NULL);

3554

switch (node->type) {

3555

case XML_ELEMENT_NODE:

3556

case XML_TEXT_NODE:

3557

case XML_CDATA_SECTION_NODE:

3558

case XML_ENTITY_REF_NODE:

3559

case XML_ENTITY_NODE:

3560

case XML_PI_NODE:

3561

case XML_COMMENT_NODE:

3562

case XML_XINCLUDE_START:

3563

case XML_XINCLUDE_END:

3564

node = node->prev;

3565

break;

3566

default:

3567

return(NULL);

3568

}

3569

while (node != NULL) {

3570

if (node->type == XML_ELEMENT_NODE)

3571

return(node);

3572

node = node->prev;

3573

}

3574

return(NULL);

3575

}

3576

3577

/**

3578

* xmlNextElementSibling:

3579

* @node: the current node

3580

*

3581

* Finds the first closest next sibling of the node which is an

3582

* element node.

3583

* Note the handling of entities references is different than in

3584

* the W3C DOM element traversal spec since we don't have back reference

3585

* from entities content to entities references.

3586

*

3587

* Returns the next element sibling or NULL if not available

3588

*/

3589

xmlNodePtr

3590

xmlNextElementSibling(xmlNodePtr node) {

3591

if (node == NULL)

3592

return(NULL);

3593

switch (node->type) {

3594

case XML_ELEMENT_NODE:

3595

case XML_TEXT_NODE:

3596

case XML_CDATA_SECTION_NODE:

3597

case XML_ENTITY_REF_NODE:

3598

case XML_ENTITY_NODE:

3599

case XML_PI_NODE:

3600

case XML_COMMENT_NODE:

3601

case XML_DTD_NODE:

3602

case XML_XINCLUDE_START:

3603

case XML_XINCLUDE_END:

3604

node = node->next;

3605

break;

3606

default:

3607

return(NULL);

3608

}

3609

while (node != NULL) {

3610

if (node->type == XML_ELEMENT_NODE)

3611

return(node);

3612

node = node->next;

3613

}

3614

return(NULL);

3615

}

3616

3617

#endif /* LIBXML_TREE_ENABLED */

3618

3619

/**

3620

* xmlFreeNodeList:

3621

* @cur: the first node in the list

3622

*

3623

* Free a node and all its siblings, this is a recursive behaviour, all

3624

* the children are freed too.

3625

*/

3626

void

3627

xmlFreeNodeList(xmlNodePtr cur) {

3628

xmlNodePtr next;

3629

xmlDictPtr dict = NULL;

3630

3631

if (cur == NULL) return;

3632

if (cur->type == XML_NAMESPACE_DECL) {

3633

xmlFreeNsList((xmlNsPtr) cur);

3634

return;

3635

}

3636

if ((cur->type == XML_DOCUMENT_NODE) ||

3637

#ifdef LIBXML_DOCB_ENABLED

3638

(cur->type == XML_DOCB_DOCUMENT_NODE) ||

3639

#endif

3640

(cur->type == XML_HTML_DOCUMENT_NODE)) {

3641

xmlFreeDoc((xmlDocPtr) cur);

3642

return;

3643

}

3644

if (cur->doc != NULL) dict = cur->doc->dict;

3645

while (cur != NULL) {

3646

next = cur->next;

3647

if (cur->type != XML_DTD_NODE) {

3648

3649

if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))

3650

xmlDeregisterNodeDefaultValue(cur);

3651

3652

if ((cur->children != NULL) &&

3653

(cur->type != XML_ENTITY_REF_NODE))

3654

xmlFreeNodeList(cur->children);

3655

if (((cur->type == XML_ELEMENT_NODE) ||

3656

(cur->type == XML_XINCLUDE_START) ||

3657

(cur->type == XML_XINCLUDE_END)) &&

3658

(cur->properties != NULL))

3659

xmlFreePropList(cur->properties);

3660

if ((cur->type != XML_ELEMENT_NODE) &&

3661

(cur->type != XML_XINCLUDE_START) &&

3662

(cur->type != XML_XINCLUDE_END) &&

3663

(cur->type != XML_ENTITY_REF_NODE) &&

3664

(cur->content != (xmlChar *) &(cur->properties))) {

3665

DICT_FREE(cur->content)

3666

}

3667

if (((cur->type == XML_ELEMENT_NODE) ||

3668

(cur->type == XML_XINCLUDE_START) ||

3669

(cur->type == XML_XINCLUDE_END)) &&

3670

(cur->nsDef != NULL))

3671

xmlFreeNsList(cur->nsDef);

3672

3673

/*

3674

* When a node is a text node or a comment, it uses a global static

3675

* variable for the name of the node.

3676

* Otherwise the node name might come from the document's

3677

* dictionnary

3678

*/

3679

if ((cur->name != NULL) &&

3680

(cur->type != XML_TEXT_NODE) &&

3681

(cur->type != XML_COMMENT_NODE))

3682

DICT_FREE(cur->name)

3683

xmlFree(cur);

3684

}

3685

cur = next;

3686

}

3687

}

3688

3689

/**

3690

* xmlFreeNode:

3691

* @cur: the node

3692

*

3693

* Free a node, this is a recursive behaviour, all the children are freed too.

3694

* This doesn't unlink the child from the list, use xmlUnlinkNode() first.

3695

*/

3696

void

3697

xmlFreeNode(xmlNodePtr cur) {

3698

xmlDictPtr dict = NULL;

3699

3700

if (cur == NULL) return;

3701

3702

/* use xmlFreeDtd for DTD nodes */

3703

if (cur->type == XML_DTD_NODE) {

3704

xmlFreeDtd((xmlDtdPtr) cur);

3705

return;

3706

}

3707

if (cur->type == XML_NAMESPACE_DECL) {

3708

xmlFreeNs((xmlNsPtr) cur);

3709

return;

3710

}

3711

if (cur->type == XML_ATTRIBUTE_NODE) {

3712

xmlFreeProp((xmlAttrPtr) cur);

3713

return;

3714

}

3715

3716

if ((__xmlRegisterCallbacks) && (xmlDeregisterNodeDefaultValue))

3717

xmlDeregisterNodeDefaultValue(cur);

3718

3719

if (cur->doc != NULL) dict = cur->doc->dict;

3720

3721

if (cur->type == XML_ENTITY_DECL) {

3722

xmlEntityPtr ent = (xmlEntityPtr) cur;

3723

DICT_FREE(ent->SystemID);

3724

DICT_FREE(ent->ExternalID);

3725

}

3726

if ((cur->children != NULL) &&

3727

(cur->type != XML_ENTITY_REF_NODE))

3728

xmlFreeNodeList(cur->children);

3729

if (((cur->type == XML_ELEMENT_NODE) ||

3730

(cur->type == XML_XINCLUDE_START) ||

3731

(cur->type == XML_XINCLUDE_END)) &&

3732

(cur->properties != NULL))

3733

xmlFreePropList(cur->properties);

3734

if ((cur->type != XML_ELEMENT_NODE) &&

3735

(cur->content != NULL) &&

3736

(cur->type != XML_ENTITY_REF_NODE) &&

3737

(cur->type != XML_XINCLUDE_END) &&

3738

(cur->type != XML_XINCLUDE_START) &&

3739

(cur->content != (xmlChar *) &(cur->properties))) {

3740

DICT_FREE(cur->content)

3741

}

3742

3743

/*

3744

* When a node is a text node or a comment, it uses a global static

3745

* variable for the name of the node.

3746

* Otherwise the node name might come from the document's dictionnary

3747

*/

3748

if ((cur->name != NULL) &&

3749

(cur->type != XML_TEXT_NODE) &&

3750

(cur->type != XML_COMMENT_NODE))

3751

DICT_FREE(cur->name)

3752

3753

if (((cur->type == XML_ELEMENT_NODE) ||

3754

(cur->type == XML_XINCLUDE_START) ||

3755

(cur->type == XML_XINCLUDE_END)) &&

3756

(cur->nsDef != NULL))

3757

xmlFreeNsList(cur->nsDef);

3758

xmlFree(cur);

3759

}

3760

3761

/**

3762

* xmlUnlinkNode:

3763

* @cur: the node

3764

*

3765

* Unlink a node from it's current context, the node is not freed

3766

* If one need to free the node, use xmlFreeNode() routine after the

3767

* unlink to discard it.

3768

* Note that namespace nodes can't be unlinked as they do not have

3769

* pointer to their parent.

3770

*/

3771

void

3772

xmlUnlinkNode(xmlNodePtr cur) {

3773

if (cur == NULL) {

3774

#ifdef DEBUG_TREE

3775

xmlGenericError(xmlGenericErrorContext,

3776

"xmlUnlinkNode : node == NULL\n");

3777

#endif

3778

return;

3779

}

3780

if (cur->type == XML_NAMESPACE_DECL)

3781

return;

3782

if (cur->type == XML_DTD_NODE) {

3783

xmlDocPtr doc;

3784

doc = cur->doc;

3785

if (doc != NULL) {

3786

if (doc->intSubset == (xmlDtdPtr) cur)

3787

doc->intSubset = NULL;

3788

if (doc->extSubset == (xmlDtdPtr) cur)

3789

doc->extSubset = NULL;

3790

}

3791

}

3792

if (cur->type == XML_ENTITY_DECL) {

3793

xmlDocPtr doc;

3794

doc = cur->doc;

3795

if (doc != NULL) {

3796

if (doc->intSubset != NULL) {

3797

if (xmlHashLookup(doc->intSubset->entities, cur->name) == cur)

3798

xmlHashRemoveEntry(doc->intSubset->entities, cur->name,

3799

NULL);

3800

if (xmlHashLookup(doc->intSubset->pentities, cur->name) == cur)

3801

xmlHashRemoveEntry(doc->intSubset->pentities, cur->name,

3802

NULL);

3803

}

3804

if (doc->extSubset != NULL) {

3805

if (xmlHashLookup(doc->extSubset->entities, cur->name) == cur)

3806

xmlHashRemoveEntry(doc->extSubset->entities, cur->name,

3807

NULL);

3808

if (xmlHashLookup(doc->extSubset->pentities, cur->name) == cur)

3809

xmlHashRemoveEntry(doc->extSubset->pentities, cur->name,

3810

NULL);

3811

}

3812

}

3813

}

3814

if (cur->parent != NULL) {

3815

xmlNodePtr parent;

3816

parent = cur->parent;

3817

if (cur->type == XML_ATTRIBUTE_NODE) {

3818

if (parent->properties == (xmlAttrPtr) cur)

3819

parent->properties = ((xmlAttrPtr) cur)->next;

3820

} else {

3821

if (parent->children == cur)

3822

parent->children = cur->next;

3823

if (parent->last == cur)

3824

parent->last = cur->prev;

3825

}

3826

cur->parent = NULL;

3827

}

3828

if (cur->next != NULL)

3829

cur->next->prev = cur->prev;

3830

if (cur->prev != NULL)

3831

cur->prev->next = cur->next;

3832

cur->next = cur->prev = NULL;

3833

}

3834

3835

#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_WRITER_ENABLED)

3836

/**

3837

* xmlReplaceNode:

3838

* @old: the old node

3839

* @cur: the node

3840

*

3841

* Unlink the old node from its current context, prune the new one

3842

* at the same place. If @cur was already inserted in a document it is

3843

* first unlinked from its existing context.

3844

*

3845

* Returns the @old node

3846

*/

3847

xmlNodePtr

3848

xmlReplaceNode(xmlNodePtr old, xmlNodePtr cur) {

3849

if (old == cur) return(NULL);

3850

if ((old == NULL) || (old->type == XML_NAMESPACE_DECL) ||

3851

(old->parent == NULL)) {

3852

#ifdef DEBUG_TREE

3853

xmlGenericError(xmlGenericErrorContext,

3854

"xmlReplaceNode : old == NULL or without parent\n");

3855

#endif

3856

return(NULL);

3857

}

3858

if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL)) {

3859

xmlUnlinkNode(old);

3860

return(old);

3861

}

3862

if (cur == old) {

3863

return(old);

3864

}

3865

if ((old->type==XML_ATTRIBUTE_NODE) && (cur->type!=XML_ATTRIBUTE_NODE)) {

3866

#ifdef DEBUG_TREE

3867

xmlGenericError(xmlGenericErrorContext,

3868

"xmlReplaceNode : Trying to replace attribute node with other node type\n");

3869

#endif

3870

return(old);

3871

}

3872

if ((cur->type==XML_ATTRIBUTE_NODE) && (old->type!=XML_ATTRIBUTE_NODE)) {

3873

#ifdef DEBUG_TREE

3874

xmlGenericError(xmlGenericErrorContext,

3875

"xmlReplaceNode : Trying to replace a non-attribute node with attribute node\n");

3876

#endif

3877

return(old);

3878

}

3879

xmlUnlinkNode(cur);

3880

xmlSetTreeDoc(cur, old->doc);

3881

cur->parent = old->parent;

3882

cur->next = old->next;

3883

if (cur->next != NULL)

3884

cur->next->prev = cur;

3885

cur->prev = old->prev;

3886

if (cur->prev != NULL)

3887

cur->prev->next = cur;

3888

if (cur->parent != NULL) {

3889

if (cur->type == XML_ATTRIBUTE_NODE) {

3890

if (cur->parent->properties == (xmlAttrPtr)old)

3891

cur->parent->properties = ((xmlAttrPtr) cur);

3892

} else {

3893

if (cur->parent->children == old)

3894

cur->parent->children = cur;

3895

if (cur->parent->last == old)

3896

cur->parent->last = cur;

3897

}

3898

}

3899

old->next = old->prev = NULL;

3900

old->parent = NULL;

3901

return(old);

3902

}

3903

#endif /* LIBXML_TREE_ENABLED */

3904

3905

/************************************************************************

3906

* *

3907

* Copy operations *

3908

* *

3909

************************************************************************/

3910

3911

/**

3912

* xmlCopyNamespace:

3913

* @cur: the namespace

3914

*

3915

* Do a copy of the namespace.

3916

*

3917

* Returns: a new #xmlNsPtr, or NULL in case of error.

3918

*/

3919

xmlNsPtr

3920

xmlCopyNamespace(xmlNsPtr cur) {

3921

xmlNsPtr ret;

3922

3923

if (cur == NULL) return(NULL);

3924

switch (cur->type) {

3925

case XML_LOCAL_NAMESPACE:

3926

ret = xmlNewNs(NULL, cur->href, cur->prefix);

3927

break;

3928

default:

3929

#ifdef DEBUG_TREE

3930

xmlGenericError(xmlGenericErrorContext,

3931

"xmlCopyNamespace: invalid type %d\n", cur->type);

3932

#endif

3933

return(NULL);

3934

}

3935

return(ret);

3936

}

3937

3938

/**

3939

* xmlCopyNamespaceList:

3940

* @cur: the first namespace

3941

*

3942

* Do a copy of an namespace list.

3943

*

3944

* Returns: a new #xmlNsPtr, or NULL in case of error.

3945

*/

3946

xmlNsPtr

3947

xmlCopyNamespaceList(xmlNsPtr cur) {

3948

xmlNsPtr ret = NULL;

3949

xmlNsPtr p = NULL,q;

3950

3951

while (cur != NULL) {

3952

q = xmlCopyNamespace(cur);

3953

if (p == NULL) {

3954

ret = p = q;

3955

} else {

3956

p->next = q;

3957

p = q;

3958

}

3959

cur = cur->next;

3960

}

3961

return(ret);

3962

}

3963

3964

static xmlNodePtr

3965

xmlStaticCopyNodeList(xmlNodePtr node, xmlDocPtr doc, xmlNodePtr parent);

3966

3967

static xmlAttrPtr

3968

xmlCopyPropInternal(xmlDocPtr doc, xmlNodePtr target, xmlAttrPtr cur) {

3969

xmlAttrPtr ret;

3970

3971

if (cur == NULL) return(NULL);

3972

if ((target != NULL) && (target->type != XML_ELEMENT_NODE))

3973

return(NULL);

3974

if (target != NULL)

3975

ret = xmlNewDocProp(target->doc, cur->name, NULL);

3976

else if (doc != NULL)

3977

ret = xmlNewDocProp(doc, cur->name, NULL);

3978

else if (cur->parent != NULL)

3979

ret = xmlNewDocProp(cur->parent->doc, cur->name, NULL);

3980

else if (cur->children != NULL)

3981

ret = xmlNewDocProp(cur->children->doc, cur->name, NULL);

3982

else

3983

ret = xmlNewDocProp(NULL, cur->name, NULL);

3984

if (ret == NULL) return(NULL);

3985

ret->parent = target;

3986

3987

if ((cur->ns != NULL) && (target != NULL)) {

3988

xmlNsPtr ns;

3989

3990

ns = xmlSearchNs(target->doc, target, cur->ns->prefix);

3991

if (ns == NULL) {

3992

/*

3993

* Humm, we are copying an element whose namespace is defined

3994

* out of the new tree scope. Search it in the original tree

3995

* and add it at the top of the new tree

3996

*/

3997

ns = xmlSearchNs(cur->doc, cur->parent, cur->ns->prefix);

3998

if (ns != NULL) {

3999

xmlNodePtr root = target;

4000

xmlNodePtr pred = NULL;

4001

4002

while (root->parent != NULL) {

4003

pred = root;

4004

root = root->parent;

4005

}

4006

if (root == (xmlNodePtr) target->doc) {

4007

/* correct possibly cycling above the document elt */

4008

root = pred;

4009

}

4010

ret->ns = xmlNewNs(root, ns->href, ns->prefix);

4011

}

4012

} else {

4013

/*

4014

* we have to find something appropriate here since

4015

* we cant be sure, that the namespce we found is identified

4016

* by the prefix

4017

*/

4018

if (xmlStrEqual(ns->href, cur->ns->href)) {

4019

/* this is the nice case */

4020

ret->ns = ns;

4021

} else {

4022

/*

4023

* we are in trouble: we need a new reconcilied namespace.

4024

* This is expensive

4025

*/

4026

ret->ns = xmlNewReconciliedNs(target->doc, target, cur->ns);

4027

}

4028

}

4029

4030

} else

4031

ret->ns = NULL;

4032

4033

if (cur->children != NULL) {

4034

xmlNodePtr tmp;

4035

4036

ret->children = xmlStaticCopyNodeList(cur->children, ret->doc, (xmlNodePtr) ret);

4037

ret->last = NULL;

4038

tmp = ret->children;

4039

while (tmp != NULL) {

4040

/* tmp->parent = (xmlNodePtr)ret; */

4041

if (tmp->next == NULL)

4042

ret->last = tmp;

4043

tmp = tmp->next;

4044

}

4045

}

4046

/*

4047

* Try to handle IDs

4048

*/

4049

if ((target!= NULL) && (cur!= NULL) &&

4050

(target->doc != NULL) && (cur->doc != NULL) &&

4051

(cur->doc->ids != NULL) && (cur->parent != NULL)) {

4052

if (xmlIsID(cur->doc, cur->parent, cur)) {

4053

xmlChar *id;

4054

4055

id = xmlNodeListGetString(cur->doc, cur->children, 1);

4056

if (id != NULL) {

4057

xmlAddID(NULL, target->doc, id, ret);

4058

xmlFree(id);

4059

}

4060

}

4061

}

4062

return(ret);

4063

}

4064

4065

/**

4066

* xmlCopyProp:

4067

* @target: the element where the attribute will be grafted

4068

* @cur: the attribute

4069

*

4070

* Do a copy of the attribute.

4071

*

4072

* Returns: a new #xmlAttrPtr, or NULL in case of error.

4073

*/

4074

xmlAttrPtr

4075

xmlCopyProp(xmlNodePtr target, xmlAttrPtr cur) {

4076

return xmlCopyPropInternal(NULL, target, cur);

4077

}

4078

4079

/**

4080

* xmlCopyPropList:

4081

* @target: the element where the attributes will be grafted

4082

* @cur: the first attribute

4083

*

4084

* Do a copy of an attribute list.

4085

*

4086

* Returns: a new #xmlAttrPtr, or NULL in case of error.

4087

*/

4088

xmlAttrPtr

4089

xmlCopyPropList(xmlNodePtr target, xmlAttrPtr cur) {

4090

xmlAttrPtr ret = NULL;

4091

xmlAttrPtr p = NULL,q;

4092

4093

if ((target != NULL) && (target->type != XML_ELEMENT_NODE))

4094

return(NULL);

4095

while (cur != NULL) {

4096

q = xmlCopyProp(target, cur);

4097

if (q == NULL)

4098

return(NULL);

4099

if (p == NULL) {

4100

ret = p = q;

4101

} else {

4102

p->next = q;

4103

q->prev = p;

4104

p = q;

4105

}

4106

cur = cur->next;

4107

}

4108

return(ret);

4109

}

4110

4111

/*

4112

* NOTE about the CopyNode operations !

4113

*

4114

* They are split into external and internal parts for one

4115

* tricky reason: namespaces. Doing a direct copy of a node

4116

* say RPM:Copyright without changing the namespace pointer to

4117

* something else can produce stale links. One way to do it is

4118

* to keep a reference counter but this doesn't work as soon

4119

* as one move the element or the subtree out of the scope of

4120

* the existing namespace. The actual solution seems to add

4121

* a copy of the namespace at the top of the copied tree if

4122

* not available in the subtree.

4123

* Hence two functions, the public front-end call the inner ones

4124

* The argument "recursive" normally indicates a recursive copy

4125

* of the node with values 0 (no) and 1 (yes). For XInclude,

4126

* however, we allow a value of 2 to indicate copy properties and

4127

* namespace info, but don't recurse on children.

4128

*/

4129

4130

static xmlNodePtr

4131

xmlStaticCopyNode(const xmlNodePtr node, xmlDocPtr doc, xmlNodePtr parent,

4132

int extended) {

4133

xmlNodePtr ret;

4134

4135

if (node == NULL) return(NULL);

4136

switch (node->type) {

4137

case XML_TEXT_NODE:

4138

case XML_CDATA_SECTION_NODE:

4139

case XML_ELEMENT_NODE:

4140

case XML_DOCUMENT_FRAG_NODE:

4141

case XML_ENTITY_REF_NODE:

4142

case XML_ENTITY_NODE:

4143

case XML_PI_NODE:

4144

case XML_COMMENT_NODE:

4145

case XML_XINCLUDE_START:

4146

case XML_XINCLUDE_END:

4147

break;

4148

case XML_ATTRIBUTE_NODE:

4149

return((xmlNodePtr) xmlCopyPropInternal(doc, parent, (xmlAttrPtr) node));

4150

case XML_NAMESPACE_DECL:

4151

return((xmlNodePtr) xmlCopyNamespaceList((xmlNsPtr) node));

4152

4153

case XML_DOCUMENT_NODE:

4154

case XML_HTML_DOCUMENT_NODE:

4155

#ifdef LIBXML_DOCB_ENABLED

4156

case XML_DOCB_DOCUMENT_NODE:

4157

#endif

4158

#ifdef LIBXML_TREE_ENABLED

4159

return((xmlNodePtr) xmlCopyDoc((xmlDocPtr) node, extended));

4160

#endif /* LIBXML_TREE_ENABLED */

4161

case XML_DOCUMENT_TYPE_NODE:

4162

case XML_NOTATION_NODE:

4163

case XML_DTD_NODE:

4164

case XML_ELEMENT_DECL:

4165

case XML_ATTRIBUTE_DECL:

4166

case XML_ENTITY_DECL:

4167

return(NULL);

4168

}

4169

4170

/*

4171

* Allocate a new node and fill the fields.

4172

*/

4173

ret = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));

4174

if (ret == NULL) {

4175

xmlTreeErrMemory("copying node");

4176

return(NULL);

4177

}

4178

memset(ret, 0, sizeof(xmlNode));

4179

ret->type = node->type;

4180

4181

ret->doc = doc;

4182

ret->parent = parent;

4183

if (node->name == xmlStringText)

4184

ret->name = xmlStringText;

4185

else if (node->name == xmlStringTextNoenc)

4186

ret->name = xmlStringTextNoenc;

4187

else if (node->name == xmlStringComment)

4188

ret->name = xmlStringComment;

4189

else if (node->name != NULL) {

4190

if ((doc != NULL) && (doc->dict != NULL))

4191

ret->name = xmlDictLookup(doc->dict, node->name, -1);

4192

else

4193

ret->name = xmlStrdup(node->name);

4194

}

4195

if ((node->type != XML_ELEMENT_NODE) &&

4196

(node->content != NULL) &&

4197

(node->type != XML_ENTITY_REF_NODE) &&

4198

(node->type != XML_XINCLUDE_END) &&

4199

(node->type != XML_XINCLUDE_START)) {

4200

ret->content = xmlStrdup(node->content);

4201

}else{

4202

if (node->type == XML_ELEMENT_NODE)

4203

ret->line = node->line;

4204

}

4205

if (parent != NULL) {

4206

xmlNodePtr tmp;

4207

4208

/*

4209

* this is a tricky part for the node register thing:

4210

* in case ret does get coalesced in xmlAddChild

4211

* the deregister-node callback is called; so we register ret now already

4212

*/

4213

if ((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue))

4214

xmlRegisterNodeDefaultValue((xmlNodePtr)ret);

4215

4216

tmp = xmlAddChild(parent, ret);

4217

/* node could have coalesced */

4218

if (tmp != ret)

4219

return(tmp);

4220

}

4221

4222

if (!extended)

4223

goto out;

4224

if (((node->type == XML_ELEMENT_NODE) ||

4225

(node->type == XML_XINCLUDE_START)) && (node->nsDef != NULL))

4226

ret->nsDef = xmlCopyNamespaceList(node->nsDef);

4227

4228

if (node->ns != NULL) {

4229

xmlNsPtr ns;

4230

4231

ns = xmlSearchNs(doc, ret, node->ns->prefix);

4232

if (ns == NULL) {

4233

/*

4234

* Humm, we are copying an element whose namespace is defined

4235

* out of the new tree scope. Search it in the original tree

4236

* and add it at the top of the new tree

4237

*/

4238

ns = xmlSearchNs(node->doc, node, node->ns->prefix);

4239

if (ns != NULL) {

4240

xmlNodePtr root = ret;

4241

4242

while (root->parent != NULL) root = root->parent;

4243

ret->ns = xmlNewNs(root, ns->href, ns->prefix);

4244

} else {

4245

ret->ns = xmlNewReconciliedNs(doc, ret, node->ns);

4246

}

4247

} else {

4248

/*

4249

* reference the existing namespace definition in our own tree.

4250

*/

4251

ret->ns = ns;

4252

}

4253

}

4254

if (((node->type == XML_ELEMENT_NODE) ||

4255

(node->type == XML_XINCLUDE_START)) && (node->properties != NULL))

4256

ret->properties = xmlCopyPropList(ret, node->properties);

4257

if (node->type == XML_ENTITY_REF_NODE) {

4258

if ((doc == NULL) || (node->doc != doc)) {

4259

/*

4260

* The copied node will go into a separate document, so

4261

* to avoid dangling references to the ENTITY_DECL node

4262

* we cannot keep the reference. Try to find it in the

4263

* target document.

4264

*/

4265

ret->children = (xmlNodePtr) xmlGetDocEntity(doc, ret->name);

4266

} else {

4267

ret->children = node->children;

4268

}

4269

ret->last = ret->children;

4270

} else if ((node->children != NULL) && (extended != 2)) {

4271

ret->children = xmlStaticCopyNodeList(node->children, doc, ret);

4272

UPDATE_LAST_CHILD_AND_PARENT(ret)

4273

}

4274

4275

out:

4276

/* if parent != NULL we already registered the node above */

4277

if ((parent == NULL) &&

4278

((__xmlRegisterCallbacks) && (xmlRegisterNodeDefaultValue)))

4279

xmlRegisterNodeDefaultValue((xmlNodePtr)ret);

4280

return(ret);

4281

}

4282

4283

static xmlNodePtr

4284

xmlStaticCopyNodeList(xmlNodePtr node, xmlDocPtr doc, xmlNodePtr parent) {

4285

xmlNodePtr ret = NULL;

4286

xmlNodePtr p = NULL,q;

4287

4288

while (node != NULL) {

4289

#ifdef LIBXML_TREE_ENABLED

4290

if (node->type == XML_DTD_NODE ) {

4291

if (doc == NULL) {

4292

node = node->next;

4293

continue;

4294

}

4295

if (doc->intSubset == NULL) {

4296

q = (xmlNodePtr) xmlCopyDtd( (xmlDtdPtr) node );

4297

q->doc = doc;

4298

q->parent = parent;

4299

doc->intSubset = (xmlDtdPtr) q;

4300

xmlAddChild(parent, q);

4301

} else {

4302

q = (xmlNodePtr) doc->intSubset;

4303

xmlAddChild(parent, q);

4304

}

4305

} else

4306

#endif /* LIBXML_TREE_ENABLED */

4307

q = xmlStaticCopyNode(node, doc, parent, 1);

4308

if (ret == NULL) {

4309

q->prev = NULL;

4310

ret = p = q;

4311

} else if (p != q) {

4312

/* the test is required if xmlStaticCopyNode coalesced 2 text nodes */

4313

p->next = q;

4314

q->prev = p;

4315

p = q;

4316

}

4317

node = node->next;

4318

}

4319

return(ret);

4320

}

4321

4322

/**

4323

* xmlCopyNode:

4324

* @node: the node

4325

* @extended: if 1 do a recursive copy (properties, namespaces and children

4326

* when applicable)

4327

* if 2 copy properties and namespaces (when applicable)

4328

*

4329

* Do a copy of the node.

4330

*

4331

* Returns: a new #xmlNodePtr, or NULL in case of error.

4332

*/

4333

xmlNodePtr

4334

xmlCopyNode(const xmlNodePtr node, int extended) {

4335

xmlNodePtr ret;

4336

4337

ret = xmlStaticCopyNode(node, NULL, NULL, extended);

4338

return(ret);

4339

}

4340

4341

/**

4342

* xmlDocCopyNode:

4343

* @node: the node

4344

* @doc: the document

4345

* @extended: if 1 do a recursive copy (properties, namespaces and children

4346

* when applicable)

4347

* if 2 copy properties and namespaces (when applicable)

4348

*

4349

* Do a copy of the node to a given document.

4350

*

4351

* Returns: a new #xmlNodePtr, or NULL in case of error.

4352

*/

4353

xmlNodePtr

4354

xmlDocCopyNode(const xmlNodePtr node, xmlDocPtr doc, int extended) {

4355

xmlNodePtr ret;

4356

4357

ret = xmlStaticCopyNode(node, doc, NULL, extended);

4358

return(ret);

4359

}

4360

4361

/**

4362

* xmlDocCopyNodeList:

4363

* @doc: the target document

4364

* @node: the first node in the list.

4365

*

4366

* Do a recursive copy of the node list.

4367

*

4368

* Returns: a new #xmlNodePtr, or NULL in case of error.

4369

*/

4370

xmlNodePtr xmlDocCopyNodeList(xmlDocPtr doc, const xmlNodePtr node) {

4371

xmlNodePtr ret = xmlStaticCopyNodeList(node, doc, NULL);

4372

return(ret);

4373

}

4374

4375

/**

4376

* xmlCopyNodeList:

4377

* @node: the first node in the list.

4378

*

4379

* Do a recursive copy of the node list.

4380

* Use xmlDocCopyNodeList() if possible to ensure string interning.

4381

*

4382

* Returns: a new #xmlNodePtr, or NULL in case of error.

4383

*/

4384

xmlNodePtr xmlCopyNodeList(const xmlNodePtr node) {

4385

xmlNodePtr ret = xmlStaticCopyNodeList(node, NULL, NULL);

4386

return(ret);

4387

}

4388

4389

#if defined(LIBXML_TREE_ENABLED)

4390

/**

4391

* xmlCopyDtd:

4392

* @dtd: the dtd

4393

*

4394

* Do a copy of the dtd.

4395

*

4396

* Returns: a new #xmlDtdPtr, or NULL in case of error.

4397

*/

4398

xmlDtdPtr

4399

xmlCopyDtd(xmlDtdPtr dtd) {

4400

xmlDtdPtr ret;

4401

xmlNodePtr cur, p = NULL, q;

4402

4403

if (dtd == NULL) return(NULL);

4404

ret = xmlNewDtd(NULL, dtd->name, dtd->ExternalID, dtd->SystemID);

4405

if (ret == NULL) return(NULL);

4406

if (dtd->entities != NULL)

4407

ret->entities = (void *) xmlCopyEntitiesTable(

4408

(xmlEntitiesTablePtr) dtd->entities);

4409

if (dtd->notations != NULL)

4410

ret->notations = (void *) xmlCopyNotationTable(

4411

(xmlNotationTablePtr) dtd->notations);

4412

if (dtd->elements != NULL)

4413

ret->elements = (void *) xmlCopyElementTable(

4414

(xmlElementTablePtr) dtd->elements);

4415

if (dtd->attributes != NULL)

4416

ret->attributes = (void *) xmlCopyAttributeTable(

4417

(xmlAttributeTablePtr) dtd->attributes);

4418

if (dtd->pentities != NULL)

4419

ret->pentities = (void *) xmlCopyEntitiesTable(

4420

(xmlEntitiesTablePtr) dtd->pentities);

4421

4422

cur = dtd->children;

4423

while (cur != NULL) {

4424

q = NULL;

4425

4426

if (cur->type == XML_ENTITY_DECL) {

4427

xmlEntityPtr tmp = (xmlEntityPtr) cur;

4428

switch (tmp->etype) {

4429

case XML_INTERNAL_GENERAL_ENTITY:

4430

case XML_EXTERNAL_GENERAL_PARSED_ENTITY:

4431

case XML_EXTERNAL_GENERAL_UNPARSED_ENTITY:

4432

q = (xmlNodePtr) xmlGetEntityFromDtd(ret, tmp->name);

4433

break;

4434

case XML_INTERNAL_PARAMETER_ENTITY:

4435

case XML_EXTERNAL_PARAMETER_ENTITY:

4436

q = (xmlNodePtr)

4437

xmlGetParameterEntityFromDtd(ret, tmp->name);

4438

break;

4439

case XML_INTERNAL_PREDEFINED_ENTITY:

4440

break;

4441

}

4442

} else if (cur->type == XML_ELEMENT_DECL) {

4443

xmlElementPtr tmp = (xmlElementPtr) cur;

4444

q = (xmlNodePtr)

4445

xmlGetDtdQElementDesc(ret, tmp->name, tmp->prefix);

4446

} else if (cur->type == XML_ATTRIBUTE_DECL) {

4447

xmlAttributePtr tmp = (xmlAttributePtr) cur;

4448

q = (xmlNodePtr)

4449

xmlGetDtdQAttrDesc(ret, tmp->elem, tmp->name, tmp->prefix);

4450

} else if (cur->type == XML_COMMENT_NODE) {

4451

q = xmlCopyNode(cur, 0);

4452

}

4453

4454

if (q == NULL) {

4455

cur = cur->next;

4456

continue;

4457

}

4458

4459

if (p == NULL)

4460

ret->children = q;

4461

else

4462

p->next = q;

4463

4464

q->prev = p;

4465

q->parent = (xmlNodePtr) ret;

4466

q->next = NULL;

4467

ret->last = q;

4468

p = q;

4469

cur = cur->next;

4470

}

4471

4472

return(ret);

4473

}

4474

#endif

4475

4476

#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)

4477

/**

4478

* xmlCopyDoc:

4479

* @doc: the document

4480

* @recursive: if not zero do a recursive copy.

4481

*

4482

* Do a copy of the document info. If recursive, the content tree will

4483

* be copied too as well as DTD, namespaces and entities.

4484

*

4485

* Returns: a new #xmlDocPtr, or NULL in case of error.

4486

*/

4487

xmlDocPtr

4488

xmlCopyDoc(xmlDocPtr doc, int recursive) {

4489

xmlDocPtr ret;

4490

4491

if (doc == NULL) return(NULL);

4492

ret = xmlNewDoc(doc->version);

4493

if (ret == NULL) return(NULL);

4494

if (doc->name != NULL)

4495

ret->name = xmlMemStrdup(doc->name);

4496

if (doc->encoding != NULL)

4497

ret->encoding = xmlStrdup(doc->encoding);

4498

if (doc->URL != NULL)

4499

ret->URL = xmlStrdup(doc->URL);

4500

ret->charset = doc->charset;

4501

ret->compression = doc->compression;

4502

ret->standalone = doc->standalone;

4503

if (!recursive) return(ret);

4504

4505

ret->last = NULL;

4506

ret->children = NULL;

4507

#ifdef LIBXML_TREE_ENABLED

4508

if (doc->intSubset != NULL) {

4509

ret->intSubset = xmlCopyDtd(doc->intSubset);

4510

xmlSetTreeDoc((xmlNodePtr)ret->intSubset, ret);

4511

ret->intSubset->parent = ret;

4512

}

4513

#endif

4514

if (doc->oldNs != NULL)

4515

ret->oldNs = xmlCopyNamespaceList(doc->oldNs);

4516

if (doc->children != NULL) {

4517

xmlNodePtr tmp;

4518

4519

ret->children = xmlStaticCopyNodeList(doc->children, ret,

4520

(xmlNodePtr)ret);

4521

ret->last = NULL;

4522

tmp = ret->children;

4523

while (tmp != NULL) {

4524

if (tmp->next == NULL)

4525

ret->last = tmp;

4526

tmp = tmp->next;

4527

}

4528

}

4529

return(ret);

4530

}

4531

#endif /* LIBXML_TREE_ENABLED */

4532

4533

/************************************************************************

4534

* *

4535

* Content access functions *

4536

* *

4537

************************************************************************/

4538

4539

/**

4540

* xmlGetLineNoInternal:

4541

* @node: valid node

4542

* @depth: used to limit any risk of recursion

4543

*

4544

* Get line number of @node.

4545

* Try to override the limitation of lines being store in 16 bits ints

4546

*

4547

* Returns the line number if successful, -1 otherwise

4548

*/

4549

static long

4550

xmlGetLineNoInternal(xmlNodePtr node, int depth)

4551

{

4552

long result = -1;

4553

4554

if (depth >= 5)

4555

return(-1);

4556

4557

if (!node)

4558

return result;

4559

if ((node->type == XML_ELEMENT_NODE) ||

4560

(node->type == XML_TEXT_NODE) ||

4561

(node->type == XML_COMMENT_NODE) ||

4562

(node->type == XML_PI_NODE)) {

4563

if (node->line == 65535) {

4564

if ((node->type == XML_TEXT_NODE) && (node->psvi != NULL))

4565

result = (long) node->psvi;

4566

else if ((node->type == XML_ELEMENT_NODE) &&

4567

(node->children != NULL))

4568

result = xmlGetLineNoInternal(node->children, depth + 1);

4569

else if (node->next != NULL)

4570

result = xmlGetLineNoInternal(node->next, depth + 1);

4571

else if (node->prev != NULL)

4572

result = xmlGetLineNoInternal(node->prev, depth + 1);

4573

}

4574

if ((result == -1) || (result == 65535))

4575

result = (long) node->line;

4576

} else if ((node->prev != NULL) &&

4577

((node->prev->type == XML_ELEMENT_NODE) ||

4578

(node->prev->type == XML_TEXT_NODE) ||

4579

(node->prev->type == XML_COMMENT_NODE) ||

4580

(node->prev->type == XML_PI_NODE)))

4581

result = xmlGetLineNoInternal(node->prev, depth + 1);

4582

else if ((node->parent != NULL) &&

4583

(node->parent->type == XML_ELEMENT_NODE))

4584

result = xmlGetLineNoInternal(node->parent, depth + 1);

4585

4586

return result;

4587

}

4588

4589

/**

4590

* xmlGetLineNo:

4591

* @node: valid node

4592

*

4593

* Get line number of @node.

4594

* Try to override the limitation of lines being store in 16 bits ints

4595

* if XML_PARSE_BIG_LINES parser option was used

4596

*

4597

* Returns the line number if successful, -1 otherwise

4598

*/

4599

long

4600

xmlGetLineNo(xmlNodePtr node)

4601

{

4602

return(xmlGetLineNoInternal(node, 0));

4603

}

4604

4605

#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_DEBUG_ENABLED)

4606

/**

4607

* xmlGetNodePath:

4608

* @node: a node

4609

*

4610

* Build a structure based Path for the given node

4611

*

4612

* Returns the new path or NULL in case of error. The caller must free

4613

* the returned string

4614

*/

4615

xmlChar *

4616

xmlGetNodePath(xmlNodePtr node)

4617

{

4618

xmlNodePtr cur, tmp, next;

4619

xmlChar *buffer = NULL, *temp;

4620

size_t buf_len;

4621

xmlChar *buf;

4622

const char *sep;

4623

const char *name;

4624

char nametemp[100];

4625

int occur = 0, generic;

4626

4627

if ((node == NULL) || (node->type == XML_NAMESPACE_DECL))

4628

return (NULL);

4629

4630

buf_len = 500;

4631

buffer = (xmlChar *) xmlMallocAtomic(buf_len * sizeof(xmlChar));

4632

if (buffer == NULL) {

4633

xmlTreeErrMemory("getting node path");

4634

return (NULL);

4635

}

4636

buf = (xmlChar *) xmlMallocAtomic(buf_len * sizeof(xmlChar));

4637

if (buf == NULL) {

4638

xmlTreeErrMemory("getting node path");

4639

xmlFree(buffer);

4640

return (NULL);

4641

}

4642

4643

buffer[0] = 0;

4644

cur = node;

4645

do {

4646

name = "";

4647

sep = "?";

4648

occur = 0;

4649

if ((cur->type == XML_DOCUMENT_NODE) ||

4650

(cur->type == XML_HTML_DOCUMENT_NODE)) {

4651

if (buffer[0] == '/')

4652

break;

4653

sep = "/";

4654

next = NULL;

4655

} else if (cur->type == XML_ELEMENT_NODE) {

4656

generic = 0;

4657

sep = "/";

4658

name = (const char *) cur->name;

4659

if (cur->ns) {

4660

if (cur->ns->prefix != NULL) {

4661

snprintf(nametemp, sizeof(nametemp) - 1, "%s:%s",

4662

(char *)cur->ns->prefix, (char *)cur->name);

4663

nametemp[sizeof(nametemp) - 1] = 0;

4664

name = nametemp;

4665

} else {

4666

/*

4667

* We cannot express named elements in the default

4668

* namespace, so use "*".

4669

*/

4670

generic = 1;

4671

name = "*";

4672

}

4673

}

4674

next = cur->parent;

4675

4676

/*

4677

* Thumbler index computation

4678

* TODO: the ocurence test seems bogus for namespaced names

4679

*/

4680

tmp = cur->prev;

4681

while (tmp != NULL) {

4682

if ((tmp->type == XML_ELEMENT_NODE) &&

4683

(generic ||

4684

(xmlStrEqual(cur->name, tmp->name) &&

4685

((tmp->ns == cur->ns) ||

4686

((tmp->ns != NULL) && (cur->ns != NULL) &&

4687

(xmlStrEqual(cur->ns->prefix, tmp->ns->prefix)))))))

4688

occur++;

4689

tmp = tmp->prev;

4690

}

4691

if (occur == 0) {

4692

tmp = cur->next;

4693

while (tmp != NULL && occur == 0) {

4694

if ((tmp->type == XML_ELEMENT_NODE) &&

4695

(generic ||

4696

(xmlStrEqual(cur->name, tmp->name) &&

4697

((tmp->ns == cur->ns) ||

4698

((tmp->ns != NULL) && (cur->ns != NULL) &&

4699

(xmlStrEqual(cur->ns->prefix, tmp->ns->prefix)))))))

4700

occur++;

4701

tmp = tmp->next;

4702

}

4703

if (occur != 0)

4704

occur = 1;

4705

} else

4706

occur++;

4707

} else if (cur->type == XML_COMMENT_NODE) {

4708

sep = "/";

4709

name = "comment()";

4710

next = cur->parent;

4711

4712

/*

4713

* Thumbler index computation

4714

*/

4715

tmp = cur->prev;

4716

while (tmp != NULL) {

4717

if (tmp->type == XML_COMMENT_NODE)

4718

occur++;

4719

tmp = tmp->prev;

4720

}

4721

if (occur == 0) {

4722

tmp = cur->next;

4723

while (tmp != NULL && occur == 0) {

4724

if (tmp->type == XML_COMMENT_NODE)

4725

occur++;

4726

tmp = tmp->next;

4727

}

4728

if (occur != 0)

4729

occur = 1;

4730

} else

4731

occur++;

4732

} else if ((cur->type == XML_TEXT_NODE) ||

4733

(cur->type == XML_CDATA_SECTION_NODE)) {

4734

sep = "/";

4735

name = "text()";

4736

next = cur->parent;

4737

4738

/*

4739

* Thumbler index computation

4740

*/

4741

tmp = cur->prev;

4742

while (tmp != NULL) {

4743

if ((tmp->type == XML_TEXT_NODE) ||

4744

(tmp->type == XML_CDATA_SECTION_NODE))

4745

occur++;

4746

tmp = tmp->prev;

4747

}

4748

/*

4749

* Evaluate if this is the only text- or CDATA-section-node;

4750

* if yes, then we'll get "text()", otherwise "text()[1]".

4751

*/

4752

if (occur == 0) {

4753

tmp = cur->next;

4754

while (tmp != NULL) {

4755

if ((tmp->type == XML_TEXT_NODE) ||

4756

(tmp->type == XML_CDATA_SECTION_NODE))

4757

{

4758

occur = 1;

4759

break;

4760

}

4761

tmp = tmp->next;

4762

}

4763

} else

4764

occur++;

4765

} else if (cur->type == XML_PI_NODE) {

4766

sep = "/";

4767

snprintf(nametemp, sizeof(nametemp) - 1,

4768

"processing-instruction('%s')", (char *)cur->name);

4769

nametemp[sizeof(nametemp) - 1] = 0;

4770

name = nametemp;

4771

4772

next = cur->parent;

4773

4774

/*

4775

* Thumbler index computation

4776

*/

4777

tmp = cur->prev;

4778

while (tmp != NULL) {

4779

if ((tmp->type == XML_PI_NODE) &&

4780

(xmlStrEqual(cur->name, tmp->name)))

4781

occur++;

4782

tmp = tmp->prev;

4783

}

4784

if (occur == 0) {

4785

tmp = cur->next;

4786

while (tmp != NULL && occur == 0) {

4787

if ((tmp->type == XML_PI_NODE) &&

4788

(xmlStrEqual(cur->name, tmp->name)))

4789

occur++;

4790

tmp = tmp->next;

4791

}

4792

if (occur != 0)

4793

occur = 1;

4794

} else

4795

occur++;

4796

4797

} else if (cur->type == XML_ATTRIBUTE_NODE) {

4798

sep = "/@";

4799

name = (const char *) (((xmlAttrPtr) cur)->name);

4800

if (cur->ns) {

4801

if (cur->ns->prefix != NULL)

4802

snprintf(nametemp, sizeof(nametemp) - 1, "%s:%s",

4803

(char *)cur->ns->prefix, (char *)cur->name);

4804

else

4805

snprintf(nametemp, sizeof(nametemp) - 1, "%s",

4806

(char *)cur->name);

4807

nametemp[sizeof(nametemp) - 1] = 0;

4808

name = nametemp;

4809

}

4810

next = ((xmlAttrPtr) cur)->parent;

4811

} else {

4812

next = cur->parent;

4813

}

4814

4815

/*

4816

* Make sure there is enough room

4817

*/

4818

if (xmlStrlen(buffer) + sizeof(nametemp) + 20 > buf_len) {

4819

buf_len =

4820

2 * buf_len + xmlStrlen(buffer) + sizeof(nametemp) + 20;

4821

temp = (xmlChar *) xmlRealloc(buffer, buf_len);

4822

if (temp == NULL) {

4823

xmlTreeErrMemory("getting node path");

4824

xmlFree(buf);

4825

xmlFree(buffer);

4826

return (NULL);

4827

}

4828

buffer = temp;

4829

temp = (xmlChar *) xmlRealloc(buf, buf_len);

4830

if (temp == NULL) {

4831

xmlTreeErrMemory("getting node path");

4832

xmlFree(buf);

4833

xmlFree(buffer);

4834

return (NULL);

4835

}

4836

buf = temp;

4837

}

4838

if (occur == 0)

4839

snprintf((char *) buf, buf_len, "%s%s%s",

4840

sep, name, (char *) buffer);

4841

else

4842

snprintf((char *) buf, buf_len, "%s%s[%d]%s",

4843

sep, name, occur, (char *) buffer);

4844

snprintf((char *) buffer, buf_len, "%s", (char *)buf);

4845

cur = next;

4846

} while (cur != NULL);

4847

xmlFree(buf);

4848

return (buffer);

4849

}

4850

#endif /* LIBXML_TREE_ENABLED */

4851

4852

/**

4853

* xmlDocGetRootElement:

4854

* @doc: the document

4855

*

4856

* Get the root element of the document (doc->children is a list

4857

* containing possibly comments, PIs, etc ...).

4858

*

4859

* Returns the #xmlNodePtr for the root or NULL

4860

*/

4861

xmlNodePtr

4862

xmlDocGetRootElement(xmlDocPtr doc) {

4863

xmlNodePtr ret;

4864

4865

if (doc == NULL) return(NULL);

4866

ret = doc->children;

4867

while (ret != NULL) {

4868

if (ret->type == XML_ELEMENT_NODE)

4869

return(ret);

4870

ret = ret->next;

4871

}

4872

return(ret);

4873

}

4874

4875

#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_WRITER_ENABLED)

4876

/**

4877

* xmlDocSetRootElement:

4878

* @doc: the document

4879

* @root: the new document root element, if root is NULL no action is taken,

4880

* to remove a node from a document use xmlUnlinkNode(root) instead.

4881

*

4882

* Set the root element of the document (doc->children is a list

4883

* containing possibly comments, PIs, etc ...).

4884

*

4885

* Returns the old root element if any was found, NULL if root was NULL

4886

*/

4887

xmlNodePtr

4888

xmlDocSetRootElement(xmlDocPtr doc, xmlNodePtr root) {

4889

xmlNodePtr old = NULL;

4890

4891

if (doc == NULL) return(NULL);

4892

if ((root == NULL) || (root->type == XML_NAMESPACE_DECL))

4893

return(NULL);

4894

xmlUnlinkNode(root);

4895

xmlSetTreeDoc(root, doc);

4896

root->parent = (xmlNodePtr) doc;

4897

old = doc->children;

4898

while (old != NULL) {

4899

if (old->type == XML_ELEMENT_NODE)

4900

break;

4901

old = old->next;

4902

}

4903

if (old == NULL) {

4904

if (doc->children == NULL) {

4905

doc->children = root;

4906

doc->last = root;

4907

} else {

4908

xmlAddSibling(doc->children, root);

4909

}

4910

} else {

4911

xmlReplaceNode(old, root);

4912

}

4913

return(old);

4914

}

4915

#endif

4916

4917

#if defined(LIBXML_TREE_ENABLED)

4918

/**

4919

* xmlNodeSetLang:

4920

* @cur: the node being changed

4921

* @lang: the language description

4922

*

4923

* Set the language of a node, i.e. the values of the xml:lang

4924

* attribute.

4925

*/

4926

void

4927

xmlNodeSetLang(xmlNodePtr cur, const xmlChar *lang) {

4928

xmlNsPtr ns;

4929

4930

if (cur == NULL) return;

4931

switch(cur->type) {

4932

case XML_TEXT_NODE:

4933

case XML_CDATA_SECTION_NODE:

4934

case XML_COMMENT_NODE:

4935

case XML_DOCUMENT_NODE:

4936

case XML_DOCUMENT_TYPE_NODE:

4937

case XML_DOCUMENT_FRAG_NODE:

4938

case XML_NOTATION_NODE:

4939

case XML_HTML_DOCUMENT_NODE:

4940

case XML_DTD_NODE:

4941

case XML_ELEMENT_DECL:

4942

case XML_ATTRIBUTE_DECL:

4943

case XML_ENTITY_DECL:

4944

case XML_PI_NODE:

4945

case XML_ENTITY_REF_NODE:

4946

case XML_ENTITY_NODE:

4947

case XML_NAMESPACE_DECL:

4948

#ifdef LIBXML_DOCB_ENABLED

4949

case XML_DOCB_DOCUMENT_NODE:

4950

#endif

4951

case XML_XINCLUDE_START:

4952

case XML_XINCLUDE_END:

4953

return;

4954

case XML_ELEMENT_NODE:

4955

case XML_ATTRIBUTE_NODE:

4956

break;

4957

}

4958

ns = xmlSearchNsByHref(cur->doc, cur, XML_XML_NAMESPACE);

4959

if (ns == NULL)

4960

return;

4961

xmlSetNsProp(cur, ns, BAD_CAST "lang", lang);

4962

}

4963

#endif /* LIBXML_TREE_ENABLED */

4964

4965

/**

4966

* xmlNodeGetLang:

4967

* @cur: the node being checked

4968

*

4969

* Searches the language of a node, i.e. the values of the xml:lang

4970

* attribute or the one carried by the nearest ancestor.

4971

*

4972

* Returns a pointer to the lang value, or NULL if not found

4973

* It's up to the caller to free the memory with xmlFree().

4974

*/

4975

xmlChar *

4976

xmlNodeGetLang(xmlNodePtr cur) {

4977

xmlChar *lang;

4978

4979

if ((cur == NULL) || (cur->type == XML_NAMESPACE_DECL))

4980

return(NULL);

4981

while (cur != NULL) {

4982

lang = xmlGetNsProp(cur, BAD_CAST "lang", XML_XML_NAMESPACE);

4983

if (lang != NULL)

4984

return(lang);

4985

cur = cur->parent;

4986

}

4987

return(NULL);

4988

}

4989

4990

4991

#ifdef LIBXML_TREE_ENABLED

4992

/**

4993

* xmlNodeSetSpacePreserve:

4994

* @cur: the node being changed

4995

* @val: the xml:space value ("0": default, 1: "preserve")

4996

*

4997

* Set (or reset) the space preserving behaviour of a node, i.e. the

4998

* value of the xml:space attribute.

4999

*/

5000

void

5001

xmlNodeSetSpacePreserve(xmlNodePtr cur, int val) {

5002

xmlNsPtr ns;

5003

5004

if (cur == NULL) return;

5005

switch(cur->type) {

5006

case XML_TEXT_NODE:

5007

case XML_CDATA_SECTION_NODE:

5008

case XML_COMMENT_NODE:

5009

case XML_DOCUMENT_NODE:

5010

case XML_DOCUMENT_TYPE_NODE:

5011

case XML_DOCUMENT_FRAG_NODE:

5012

case XML_NOTATION_NODE:

5013

case XML_HTML_DOCUMENT_NODE:

5014

case XML_DTD_NODE:

5015

case XML_ELEMENT_DECL:

5016

case XML_ATTRIBUTE_DECL:

5017

case XML_ENTITY_DECL:

5018

case XML_PI_NODE:

5019

case XML_ENTITY_REF_NODE:

5020

case XML_ENTITY_NODE:

5021

case XML_NAMESPACE_DECL:

5022

case XML_XINCLUDE_START:

5023

case XML_XINCLUDE_END:

5024

#ifdef LIBXML_DOCB_ENABLED

5025

case XML_DOCB_DOCUMENT_NODE:

5026

#endif

5027

return;

5028

case XML_ELEMENT_NODE:

5029

case XML_ATTRIBUTE_NODE:

5030

break;

5031

}

5032

ns = xmlSearchNsByHref(cur->doc, cur, XML_XML_NAMESPACE);

5033

if (ns == NULL)

5034

return;

5035

switch (val) {

5036

case 0:

5037

xmlSetNsProp(cur, ns, BAD_CAST "space", BAD_CAST "default");

5038

break;

5039

case 1:

5040

xmlSetNsProp(cur, ns, BAD_CAST "space", BAD_CAST "preserve");

5041

break;

5042

}

5043

}

5044

#endif /* LIBXML_TREE_ENABLED */

5045

5046

/**

5047

* xmlNodeGetSpacePreserve:

5048

* @cur: the node being checked

5049

*

5050

* Searches the space preserving behaviour of a node, i.e. the values

5051

* of the xml:space attribute or the one carried by the nearest

5052

* ancestor.

5053

*

5054

* Returns -1 if xml:space is not inherited, 0 if "default", 1 if "preserve"

5055

*/

5056

int

5057

xmlNodeGetSpacePreserve(xmlNodePtr cur) {

5058

xmlChar *space;

5059

5060

if ((cur == NULL) || (cur->type != XML_ELEMENT_NODE))

5061

return(-1);

5062

while (cur != NULL) {

5063

space = xmlGetNsProp(cur, BAD_CAST "space", XML_XML_NAMESPACE);

5064

if (space != NULL) {

5065

if (xmlStrEqual(space, BAD_CAST "preserve")) {

5066

xmlFree(space);

5067

return(1);

5068

}

5069

if (xmlStrEqual(space, BAD_CAST "default")) {

5070

xmlFree(space);

5071

return(0);

5072

}

5073

xmlFree(space);

5074

}

5075

cur = cur->parent;

5076

}

5077

return(-1);

5078

}

5079

5080

#ifdef LIBXML_TREE_ENABLED

5081

/**

5082

* xmlNodeSetName:

5083

* @cur: the node being changed

5084

* @name: the new tag name

5085

*

5086

* Set (or reset) the name of a node.

5087

*/

5088

void

5089

xmlNodeSetName(xmlNodePtr cur, const xmlChar *name) {

5090

xmlDocPtr doc;

5091

xmlDictPtr dict;

5092

5093

if (cur == NULL) return;

5094

if (name == NULL) return;

5095

switch(cur->type) {

5096

case XML_TEXT_NODE:

5097

case XML_CDATA_SECTION_NODE:

5098

case XML_COMMENT_NODE:

5099

case XML_DOCUMENT_TYPE_NODE:

5100

case XML_DOCUMENT_FRAG_NODE:

5101

case XML_NOTATION_NODE:

5102

case XML_HTML_DOCUMENT_NODE:

5103

case XML_NAMESPACE_DECL:

5104

case XML_XINCLUDE_START:

5105

case XML_XINCLUDE_END:

5106

#ifdef LIBXML_DOCB_ENABLED

5107

case XML_DOCB_DOCUMENT_NODE:

5108

#endif

5109

return;

5110

case XML_ELEMENT_NODE:

5111

case XML_ATTRIBUTE_NODE:

5112

case XML_PI_NODE:

5113

case XML_ENTITY_REF_NODE:

5114

case XML_ENTITY_NODE:

5115

case XML_DTD_NODE:

5116

case XML_DOCUMENT_NODE:

5117

case XML_ELEMENT_DECL:

5118

case XML_ATTRIBUTE_DECL:

5119

case XML_ENTITY_DECL:

5120

break;

5121

}

5122

doc = cur->doc;

5123

if (doc != NULL)

5124

dict = doc->dict;

5125

else

5126

dict = NULL;

5127

if (dict != NULL) {

5128

if ((cur->name != NULL) && (!xmlDictOwns(dict, cur->name)))

5129

xmlFree((xmlChar *) cur->name);

5130

cur->name = xmlDictLookup(dict, name, -1);

5131

} else {

5132

if (cur->name != NULL) xmlFree((xmlChar *) cur->name);

5133

cur->name = xmlStrdup(name);

5134

}

5135

}

5136

#endif

5137

5138

#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_XINCLUDE_ENABLED)

5139

/**

5140

* xmlNodeSetBase:

5141

* @cur: the node being changed

5142

* @uri: the new base URI

5143

*

5144

* Set (or reset) the base URI of a node, i.e. the value of the

5145

* xml:base attribute.

5146

*/

5147

void

5148

xmlNodeSetBase(xmlNodePtr cur, const xmlChar* uri) {

5149

xmlNsPtr ns;

5150

xmlChar* fixed;

5151

5152

if (cur == NULL) return;

5153

switch(cur->type) {

5154

case XML_TEXT_NODE:

5155

case XML_CDATA_SECTION_NODE:

5156

case XML_COMMENT_NODE:

5157

case XML_DOCUMENT_TYPE_NODE:

5158

case XML_DOCUMENT_FRAG_NODE:

5159

case XML_NOTATION_NODE:

5160

case XML_DTD_NODE:

5161

case XML_ELEMENT_DECL:

5162

case XML_ATTRIBUTE_DECL:

5163

case XML_ENTITY_DECL:

5164

case XML_PI_NODE:

5165

case XML_ENTITY_REF_NODE:

5166

case XML_ENTITY_NODE:

5167

case XML_NAMESPACE_DECL:

5168

case XML_XINCLUDE_START:

5169

case XML_XINCLUDE_END:

5170

return;

5171

case XML_ELEMENT_NODE:

5172

case XML_ATTRIBUTE_NODE:

5173

break;

5174

case XML_DOCUMENT_NODE:

5175

#ifdef LIBXML_DOCB_ENABLED

5176

case XML_DOCB_DOCUMENT_NODE:

5177

#endif

5178

case XML_HTML_DOCUMENT_NODE: {

5179

xmlDocPtr doc = (xmlDocPtr) cur;

5180

5181

if (doc->URL != NULL)

5182

xmlFree((xmlChar *) doc->URL);

5183

if (uri == NULL)

5184

doc->URL = NULL;

5185

else

5186

doc->URL = xmlPathToURI(uri);

5187

return;

5188

}

5189

}

5190

5191

ns = xmlSearchNsByHref(cur->doc, cur, XML_XML_NAMESPACE);

5192

if (ns == NULL)

5193

return;

5194

fixed = xmlPathToURI(uri);

5195

if (fixed != NULL) {

5196

xmlSetNsProp(cur, ns, BAD_CAST "base", fixed);

5197

xmlFree(fixed);

5198

} else {

5199

xmlSetNsProp(cur, ns, BAD_CAST "base", uri);

5200

}

5201

}

5202

#endif /* LIBXML_TREE_ENABLED */

5203

5204

/**

5205

* xmlNodeGetBase:

5206

* @doc: the document the node pertains to

5207

* @cur: the node being checked

5208

*

5209

* Searches for the BASE URL. The code should work on both XML

5210

* and HTML document even if base mechanisms are completely different.

5211

* It returns the base as defined in RFC 2396 sections

5212

* 5.1.1. Base URI within Document Content

5213

* and

5214

* 5.1.2. Base URI from the Encapsulating Entity

5215

* However it does not return the document base (5.1.3), use

5216

* doc->URL in this case

5217

*

5218

* Returns a pointer to the base URL, or NULL if not found

5219

* It's up to the caller to free the memory with xmlFree().

5220

*/

5221

xmlChar *

5222

xmlNodeGetBase(xmlDocPtr doc, xmlNodePtr cur) {

5223

xmlChar *oldbase = NULL;

5224

xmlChar *base, *newbase;

5225

5226

if ((cur == NULL) && (doc == NULL))

5227

return(NULL);

5228

if ((cur != NULL) && (cur->type == XML_NAMESPACE_DECL))

5229

return(NULL);

5230

if (doc == NULL) doc = cur->doc;

5231

if ((doc != NULL) && (doc->type == XML_HTML_DOCUMENT_NODE)) {

5232

cur = doc->children;

5233

while ((cur != NULL) && (cur->name != NULL)) {

5234

if (cur->type != XML_ELEMENT_NODE) {

5235

cur = cur->next;

5236

continue;

5237

}

5238

if (!xmlStrcasecmp(cur->name, BAD_CAST "html")) {

5239

cur = cur->children;

5240

continue;

5241

}

5242

if (!xmlStrcasecmp(cur->name, BAD_CAST "head")) {

5243

cur = cur->children;

5244

continue;

5245

}

5246

if (!xmlStrcasecmp(cur->name, BAD_CAST "base")) {

5247

return(xmlGetProp(cur, BAD_CAST "href"));

5248

}

5249

cur = cur->next;

5250

}

5251

return(NULL);

5252

}

5253

while (cur != NULL) {

5254

if (cur->type == XML_ENTITY_DECL) {

5255

xmlEntityPtr ent = (xmlEntityPtr) cur;

5256

return(xmlStrdup(ent->URI));

5257

}

5258

if (cur->type == XML_ELEMENT_NODE) {

5259

base = xmlGetNsProp(cur, BAD_CAST "base", XML_XML_NAMESPACE);

5260

if (base != NULL) {

5261

if (oldbase != NULL) {

5262

newbase = xmlBuildURI(oldbase, base);

5263

if (newbase != NULL) {

5264

xmlFree(oldbase);

5265

xmlFree(base);

5266

oldbase = newbase;

5267

} else {

5268

xmlFree(oldbase);

5269

xmlFree(base);

5270

return(NULL);

5271

}

5272

} else {

5273

oldbase = base;

5274

}

5275

if ((!xmlStrncmp(oldbase, BAD_CAST "http://", 7)) ||

5276

(!xmlStrncmp(oldbase, BAD_CAST "ftp://", 6)) ||

5277

(!xmlStrncmp(oldbase, BAD_CAST "urn:", 4)))

5278

return(oldbase);

5279

}

5280

}

5281

cur = cur->parent;

5282

}

5283

if ((doc != NULL) && (doc->URL != NULL)) {

5284

if (oldbase == NULL)

5285

return(xmlStrdup(doc->URL));

5286

newbase = xmlBuildURI(oldbase, doc->URL);

5287

xmlFree(oldbase);

5288

return(newbase);

5289

}

5290

return(oldbase);

5291

}

5292

5293

/**

5294

* xmlNodeBufGetContent:

5295

* @buffer: a buffer

5296

* @cur: the node being read

5297

*

5298

* Read the value of a node @cur, this can be either the text carried

5299

* directly by this node if it's a TEXT node or the aggregate string

5300

* of the values carried by this node child's (TEXT and ENTITY_REF).

5301

* Entity references are substituted.

5302

* Fills up the buffer @buffer with this value

5303

*

5304

* Returns 0 in case of success and -1 in case of error.

5305

*/

5306

int

5307

xmlNodeBufGetContent(xmlBufferPtr buffer, xmlNodePtr cur)

5308

{

5309

xmlBufPtr buf;

5310

int ret;

5311

5312

if ((cur == NULL) || (buffer == NULL)) return(-1);

5313

buf = xmlBufFromBuffer(buffer);

5314

ret = xmlBufGetNodeContent(buf, cur);

5315

buffer = xmlBufBackToBuffer(buf);

5316

if ((ret < 0) || (buffer == NULL))

5317

return(-1);

5318

return(0);

5319

}

5320

5321

/**

5322

* xmlBufGetNodeContent:

5323

* @buf: a buffer xmlBufPtr

5324

* @cur: the node being read

5325

*

5326

* Read the value of a node @cur, this can be either the text carried

5327

* directly by this node if it's a TEXT node or the aggregate string

5328

* of the values carried by this node child's (TEXT and ENTITY_REF).

5329

* Entity references are substituted.

5330

* Fills up the buffer @buffer with this value

5331

*

5332

* Returns 0 in case of success and -1 in case of error.

5333

*/

5334

int

5335

xmlBufGetNodeContent(xmlBufPtr buf, xmlNodePtr cur)

5336

{

5337

if ((cur == NULL) || (buf == NULL)) return(-1);

5338

switch (cur->type) {

5339

case XML_CDATA_SECTION_NODE:

5340

case XML_TEXT_NODE:

5341

xmlBufCat(buf, cur->content);

5342

break;

5343

case XML_DOCUMENT_FRAG_NODE:

5344

case XML_ELEMENT_NODE:{

5345

xmlNodePtr tmp = cur;

5346

5347

while (tmp != NULL) {

5348

switch (tmp->type) {

5349

case XML_CDATA_SECTION_NODE:

5350

case XML_TEXT_NODE:

5351

if (tmp->content != NULL)

5352

xmlBufCat(buf, tmp->content);

5353

break;

5354

case XML_ENTITY_REF_NODE:

5355

xmlBufGetNodeContent(buf, tmp);

5356

break;

5357

default:

5358

break;

5359

}

5360

/*

5361

* Skip to next node

5362

*/

5363

if (tmp->children != NULL) {

5364

if (tmp->children->type != XML_ENTITY_DECL) {

5365

tmp = tmp->children;

5366

continue;

5367

}

5368

}

5369

if (tmp == cur)

5370

break;

5371

5372

if (tmp->next != NULL) {

5373

tmp = tmp->next;

5374

continue;

5375

}

5376

5377

do {

5378

tmp = tmp->parent;

5379

if (tmp == NULL)

5380

break;

5381

if (tmp == cur) {

5382

tmp = NULL;

5383

break;

5384

}

5385

if (tmp->next != NULL) {

5386

tmp = tmp->next;

5387

break;

5388

}

5389

} while (tmp != NULL);

5390

}

5391

break;

5392

}

5393

case XML_ATTRIBUTE_NODE:{

5394

xmlAttrPtr attr = (xmlAttrPtr) cur;

5395

xmlNodePtr tmp = attr->children;

5396

5397

while (tmp != NULL) {

5398

if (tmp->type == XML_TEXT_NODE)

5399

xmlBufCat(buf, tmp->content);

5400

else

5401

xmlBufGetNodeContent(buf, tmp);

5402

tmp = tmp->next;

5403

}

5404

break;

5405

}

5406

case XML_COMMENT_NODE:

5407

case XML_PI_NODE:

5408

xmlBufCat(buf, cur->content);

5409

break;

5410

case XML_ENTITY_REF_NODE:{

5411

xmlEntityPtr ent;

5412

xmlNodePtr tmp;

5413

5414

/* lookup entity declaration */

5415

ent = xmlGetDocEntity(cur->doc, cur->name);

5416

if (ent == NULL)

5417

return(-1);

5418

5419

/* an entity content can be any "well balanced chunk",

5420

* i.e. the result of the content [43] production:

5421

* http://www.w3.org/TR/REC-xml#NT-content

5422

* -> we iterate through child nodes and recursive call

5423

* xmlNodeGetContent() which handles all possible node types */

5424

tmp = ent->children;

5425

while (tmp) {

5426

xmlBufGetNodeContent(buf, tmp);

5427

tmp = tmp->next;

5428

}

5429

break;

5430

}

5431

case XML_ENTITY_NODE:

5432

case XML_DOCUMENT_TYPE_NODE:

5433

case XML_NOTATION_NODE:

5434

case XML_DTD_NODE:

5435

case XML_XINCLUDE_START:

5436

case XML_XINCLUDE_END:

5437

break;

5438

case XML_DOCUMENT_NODE:

5439

#ifdef LIBXML_DOCB_ENABLED

5440

case XML_DOCB_DOCUMENT_NODE:

5441

#endif

5442

case XML_HTML_DOCUMENT_NODE:

5443

cur = cur->children;

5444

while (cur!= NULL) {

5445

if ((cur->type == XML_ELEMENT_NODE) ||

5446

(cur->type == XML_TEXT_NODE) ||

5447

(cur->type == XML_CDATA_SECTION_NODE)) {

5448

xmlBufGetNodeContent(buf, cur);

5449

}

5450

cur = cur->next;

5451

}

5452

break;

5453

case XML_NAMESPACE_DECL:

5454

xmlBufCat(buf, ((xmlNsPtr) cur)->href);

5455

break;

5456

case XML_ELEMENT_DECL:

5457

case XML_ATTRIBUTE_DECL:

5458

case XML_ENTITY_DECL:

5459

break;

5460

}

5461

return(0);

5462

}

5463

5464

/**

5465

* xmlNodeGetContent:

5466

* @cur: the node being read

5467

*

5468

* Read the value of a node, this can be either the text carried

5469

* directly by this node if it's a TEXT node or the aggregate string

5470

* of the values carried by this node child's (TEXT and ENTITY_REF).

5471

* Entity references are substituted.

5472

* Returns a new #xmlChar * or NULL if no content is available.

5473

* It's up to the caller to free the memory with xmlFree().

5474

*/

5475

xmlChar *

5476

xmlNodeGetContent(xmlNodePtr cur)

5477

{

5478

if (cur == NULL)

5479

return (NULL);

5480

switch (cur->type) {

5481

case XML_DOCUMENT_FRAG_NODE:

5482

case XML_ELEMENT_NODE:{

5483

xmlBufPtr buf;

5484

xmlChar *ret;

5485

5486

buf = xmlBufCreateSize(64);

5487

if (buf == NULL)

5488

return (NULL);

5489

xmlBufGetNodeContent(buf, cur);

5490

ret = xmlBufDetach(buf);

5491

xmlBufFree(buf);

5492

return (ret);

5493

}

5494

case XML_ATTRIBUTE_NODE:

5495

return(xmlGetPropNodeValueInternal((xmlAttrPtr) cur));

5496

case XML_COMMENT_NODE:

5497

case XML_PI_NODE:

5498

if (cur->content != NULL)

5499

return (xmlStrdup(cur->content));

5500

return (NULL);

5501

case XML_ENTITY_REF_NODE:{

5502

xmlEntityPtr ent;

5503

xmlBufPtr buf;

5504

xmlChar *ret;

5505

5506

/* lookup entity declaration */

5507

ent = xmlGetDocEntity(cur->doc, cur->name);

5508

if (ent == NULL)

5509

return (NULL);

5510

5511

buf = xmlBufCreate();

5512

if (buf == NULL)

5513

return (NULL);

5514

5515

xmlBufGetNodeContent(buf, cur);

5516

5517

ret = xmlBufDetach(buf);

5518

xmlBufFree(buf);

5519

return (ret);

5520

}

5521

case XML_ENTITY_NODE:

5522

case XML_DOCUMENT_TYPE_NODE:

5523

case XML_NOTATION_NODE:

5524

case XML_DTD_NODE:

5525

case XML_XINCLUDE_START:

5526

case XML_XINCLUDE_END:

5527

return (NULL);

5528

case XML_DOCUMENT_NODE:

5529

#ifdef LIBXML_DOCB_ENABLED

5530

case XML_DOCB_DOCUMENT_NODE:

5531

#endif

5532

case XML_HTML_DOCUMENT_NODE: {

5533

xmlBufPtr buf;

5534

xmlChar *ret;

5535

5536

buf = xmlBufCreate();

5537

if (buf == NULL)

5538

return (NULL);

5539

5540

xmlBufGetNodeContent(buf, (xmlNodePtr) cur);

5541

5542

ret = xmlBufDetach(buf);

5543

xmlBufFree(buf);

5544

return (ret);

5545

}

5546

case XML_NAMESPACE_DECL: {

5547

xmlChar *tmp;

5548

5549

tmp = xmlStrdup(((xmlNsPtr) cur)->href);

5550

return (tmp);

5551

}

5552

case XML_ELEMENT_DECL:

5553

/* TODO !!! */

5554

return (NULL);

5555

case XML_ATTRIBUTE_DECL:

5556

/* TODO !!! */

5557

return (NULL);

5558

case XML_ENTITY_DECL:

5559

/* TODO !!! */

5560

return (NULL);

5561

case XML_CDATA_SECTION_NODE:

5562

case XML_TEXT_NODE:

5563

if (cur->content != NULL)

5564

return (xmlStrdup(cur->content));

5565

return (NULL);

5566

}

5567

return (NULL);

5568

}

5569

5570

/**

5571

* xmlNodeSetContent:

5572

* @cur: the node being modified

5573

* @content: the new value of the content

5574

*

5575

* Replace the content of a node.

5576

* NOTE: @content is supposed to be a piece of XML CDATA, so it allows entity

5577

* references, but XML special chars need to be escaped first by using

5578

* xmlEncodeEntitiesReentrant() resp. xmlEncodeSpecialChars().

5579

*/

5580

void

5581

xmlNodeSetContent(xmlNodePtr cur, const xmlChar *content) {

5582

if (cur == NULL) {

5583

#ifdef DEBUG_TREE

5584

xmlGenericError(xmlGenericErrorContext,

5585

"xmlNodeSetContent : node == NULL\n");

5586

#endif

5587

return;

5588

}

5589

switch (cur->type) {

5590

case XML_DOCUMENT_FRAG_NODE:

5591

case XML_ELEMENT_NODE:

5592

case XML_ATTRIBUTE_NODE:

5593

if (cur->children != NULL) xmlFreeNodeList(cur->children);

5594

cur->children = xmlStringGetNodeList(cur->doc, content);

5595

UPDATE_LAST_CHILD_AND_PARENT(cur)

5596

break;

5597

case XML_TEXT_NODE:

5598

case XML_CDATA_SECTION_NODE:

5599

case XML_ENTITY_REF_NODE:

5600

case XML_ENTITY_NODE:

5601

case XML_PI_NODE:

5602

case XML_COMMENT_NODE:

5603

if ((cur->content != NULL) &&

5604

(cur->content != (xmlChar *) &(cur->properties))) {

5605

if (!((cur->doc != NULL) && (cur->doc->dict != NULL) &&

5606

(xmlDictOwns(cur->doc->dict, cur->content))))

5607

xmlFree(cur->content);

5608

}

5609

if (cur->children != NULL) xmlFreeNodeList(cur->children);

5610

cur->last = cur->children = NULL;

5611

if (content != NULL) {

5612

cur->content = xmlStrdup(content);

5613

} else

5614

cur->content = NULL;

5615

cur->properties = NULL;

5616

cur->nsDef = NULL;

5617

break;

5618

case XML_DOCUMENT_NODE:

5619

case XML_HTML_DOCUMENT_NODE:

5620

case XML_DOCUMENT_TYPE_NODE:

5621

case XML_XINCLUDE_START:

5622

case XML_XINCLUDE_END:

5623

#ifdef LIBXML_DOCB_ENABLED

5624

case XML_DOCB_DOCUMENT_NODE:

5625

#endif

5626

break;

5627

case XML_NOTATION_NODE:

5628

break;

5629

case XML_DTD_NODE:

5630

break;

5631

case XML_NAMESPACE_DECL:

5632

break;

5633

case XML_ELEMENT_DECL:

5634

/* TODO !!! */

5635

break;

5636

case XML_ATTRIBUTE_DECL:

5637

/* TODO !!! */

5638

break;

5639

case XML_ENTITY_DECL:

5640

/* TODO !!! */

5641

break;

5642

}

5643

}

5644

5645

#ifdef LIBXML_TREE_ENABLED

5646

/**

5647

* xmlNodeSetContentLen:

5648

* @cur: the node being modified

5649

* @content: the new value of the content

5650

* @len: the size of @content

5651

*

5652

* Replace the content of a node.

5653

* NOTE: @content is supposed to be a piece of XML CDATA, so it allows entity

5654

* references, but XML special chars need to be escaped first by using

5655

* xmlEncodeEntitiesReentrant() resp. xmlEncodeSpecialChars().

5656

*/

5657

void

5658

xmlNodeSetContentLen(xmlNodePtr cur, const xmlChar *content, int len) {

5659

if (cur == NULL) {

5660

#ifdef DEBUG_TREE

5661

xmlGenericError(xmlGenericErrorContext,

5662

"xmlNodeSetContentLen : node == NULL\n");

5663

#endif

5664

return;

5665

}

5666

switch (cur->type) {

5667

case XML_DOCUMENT_FRAG_NODE:

5668

case XML_ELEMENT_NODE:

5669

case XML_ATTRIBUTE_NODE:

5670

if (cur->children != NULL) xmlFreeNodeList(cur->children);

5671

cur->children = xmlStringLenGetNodeList(cur->doc, content, len);

5672

UPDATE_LAST_CHILD_AND_PARENT(cur)

5673

break;

5674

case XML_TEXT_NODE:

5675

case XML_CDATA_SECTION_NODE:

5676

case XML_ENTITY_REF_NODE:

5677

case XML_ENTITY_NODE:

5678

case XML_PI_NODE:

5679

case XML_COMMENT_NODE:

5680

case XML_NOTATION_NODE:

5681

if ((cur->content != NULL) &&

5682

(cur->content != (xmlChar *) &(cur->properties))) {

5683

if (!((cur->doc != NULL) && (cur->doc->dict != NULL) &&

5684

(xmlDictOwns(cur->doc->dict, cur->content))))

5685

xmlFree(cur->content);

5686

}

5687

if (cur->children != NULL) xmlFreeNodeList(cur->children);

5688

cur->children = cur->last = NULL;

5689

if (content != NULL) {

5690

cur->content = xmlStrndup(content, len);

5691

} else

5692

cur->content = NULL;

5693

cur->properties = NULL;

5694

cur->nsDef = NULL;

5695

break;

5696

case XML_DOCUMENT_NODE:

5697

case XML_DTD_NODE:

5698

case XML_HTML_DOCUMENT_NODE:

5699

case XML_DOCUMENT_TYPE_NODE:

5700

case XML_NAMESPACE_DECL:

5701

case XML_XINCLUDE_START:

5702

case XML_XINCLUDE_END:

5703

#ifdef LIBXML_DOCB_ENABLED

5704

case XML_DOCB_DOCUMENT_NODE:

5705

#endif

5706

break;

5707

case XML_ELEMENT_DECL:

5708

/* TODO !!! */

5709

break;

5710

case XML_ATTRIBUTE_DECL:

5711

/* TODO !!! */

5712

break;

5713

case XML_ENTITY_DECL:

5714

/* TODO !!! */

5715

break;

5716

}

5717

}

5718

#endif /* LIBXML_TREE_ENABLED */

5719

5720

/**

5721

* xmlNodeAddContentLen:

5722

* @cur: the node being modified

5723

* @content: extra content

5724

* @len: the size of @content

5725

*

5726

* Append the extra substring to the node content.

5727

* NOTE: In contrast to xmlNodeSetContentLen(), @content is supposed to be

5728

* raw text, so unescaped XML special chars are allowed, entity

5729

* references are not supported.

5730

*/

5731

void

5732

xmlNodeAddContentLen(xmlNodePtr cur, const xmlChar *content, int len) {

5733

if (cur == NULL) {

5734

#ifdef DEBUG_TREE

5735

xmlGenericError(xmlGenericErrorContext,

5736

"xmlNodeAddContentLen : node == NULL\n");

5737

#endif

5738

return;

5739

}

5740

if (len <= 0) return;

5741

switch (cur->type) {

5742

case XML_DOCUMENT_FRAG_NODE:

5743

case XML_ELEMENT_NODE: {

5744

xmlNodePtr last, newNode, tmp;

5745

5746

last = cur->last;

5747

newNode = xmlNewTextLen(content, len);

5748

if (newNode != NULL) {

5749

tmp = xmlAddChild(cur, newNode);

5750

if (tmp != newNode)

5751

return;

5752

if ((last != NULL) && (last->next == newNode)) {

5753

xmlTextMerge(last, newNode);

5754

}

5755

}

5756

break;

5757

}

5758

case XML_ATTRIBUTE_NODE:

5759

break;

5760

case XML_TEXT_NODE:

5761

case XML_CDATA_SECTION_NODE:

5762

case XML_ENTITY_REF_NODE:

5763

case XML_ENTITY_NODE:

5764

case XML_PI_NODE:

5765

case XML_COMMENT_NODE:

5766

case XML_NOTATION_NODE:

5767

if (content != NULL) {

5768

if ((cur->content == (xmlChar *) &(cur->properties)) ||

5769

((cur->doc != NULL) && (cur->doc->dict != NULL) &&

5770

xmlDictOwns(cur->doc->dict, cur->content))) {

5771

cur->content = xmlStrncatNew(cur->content, content, len);

5772

cur->properties = NULL;

5773

cur->nsDef = NULL;

5774

break;

5775

}

5776

cur->content = xmlStrncat(cur->content, content, len);

5777

}

5778

case XML_DOCUMENT_NODE:

5779

case XML_DTD_NODE:

5780

case XML_HTML_DOCUMENT_NODE:

5781

case XML_DOCUMENT_TYPE_NODE:

5782

case XML_NAMESPACE_DECL:

5783

case XML_XINCLUDE_START:

5784

case XML_XINCLUDE_END:

5785

#ifdef LIBXML_DOCB_ENABLED

5786

case XML_DOCB_DOCUMENT_NODE:

5787

#endif

5788

break;

5789

case XML_ELEMENT_DECL:

5790

case XML_ATTRIBUTE_DECL:

5791

case XML_ENTITY_DECL:

5792

break;

5793

}

5794

}

5795

5796

/**

5797

* xmlNodeAddContent:

5798

* @cur: the node being modified

5799

* @content: extra content

5800

*

5801

* Append the extra substring to the node content.

5802

* NOTE: In contrast to xmlNodeSetContent(), @content is supposed to be

5803

* raw text, so unescaped XML special chars are allowed, entity

5804

* references are not supported.

5805

*/

5806

void

5807

xmlNodeAddContent(xmlNodePtr cur, const xmlChar *content) {

5808

int len;

5809

5810

if (cur == NULL) {

5811

#ifdef DEBUG_TREE

5812

xmlGenericError(xmlGenericErrorContext,

5813

"xmlNodeAddContent : node == NULL\n");

5814

#endif

5815

return;

5816

}

5817

if (content == NULL) return;

5818

len = xmlStrlen(content);

5819

xmlNodeAddContentLen(cur, content, len);

5820

}

5821

5822

/**

5823

* xmlTextMerge:

5824

* @first: the first text node

5825

* @second: the second text node being merged

5826

*

5827

* Merge two text nodes into one

5828

* Returns the first text node augmented

5829

*/

5830

xmlNodePtr

5831

xmlTextMerge(xmlNodePtr first, xmlNodePtr second) {

5832

if (first == NULL) return(second);

5833

if (second == NULL) return(first);

5834

if (first->type != XML_TEXT_NODE) return(first);

5835

if (second->type != XML_TEXT_NODE) return(first);

5836

if (second->name != first->name)

5837

return(first);

5838

xmlNodeAddContent(first, second->content);

5839

xmlUnlinkNode(second);

5840

xmlFreeNode(second);

5841

return(first);

5842

}

5843

5844

#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_XPATH_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)

5845

/**

5846

* xmlGetNsList:

5847

* @doc: the document

5848

* @node: the current node

5849

*

5850

* Search all the namespace applying to a given element.

5851

* Returns an NULL terminated array of all the #xmlNsPtr found

5852

* that need to be freed by the caller or NULL if no

5853

* namespace if defined

5854

*/

5855

xmlNsPtr *

5856

xmlGetNsList(xmlDocPtr doc ATTRIBUTE_UNUSED, xmlNodePtr node)

5857

{

5858

xmlNsPtr cur;

5859

xmlNsPtr *ret = NULL;

5860

int nbns = 0;

5861

int maxns = 10;

5862

int i;

5863

5864

if ((node == NULL) || (node->type == XML_NAMESPACE_DECL))

5865

return(NULL);

5866

5867

while (node != NULL) {

5868

if (node->type == XML_ELEMENT_NODE) {

5869

cur = node->nsDef;

5870

while (cur != NULL) {

5871

if (ret == NULL) {

5872

ret =

5873

(xmlNsPtr *) xmlMalloc((maxns + 1) *

5874

sizeof(xmlNsPtr));

5875

if (ret == NULL) {

5876

xmlTreeErrMemory("getting namespace list");

5877

return (NULL);

5878

}

5879

ret[nbns] = NULL;

5880

}

5881

for (i = 0; i < nbns; i++) {

5882

if ((cur->prefix == ret[i]->prefix) ||

5883

(xmlStrEqual(cur->prefix, ret[i]->prefix)))

5884

break;

5885

}

5886

if (i >= nbns) {

5887

if (nbns >= maxns) {

5888

maxns *= 2;

5889

ret = (xmlNsPtr *) xmlRealloc(ret,

5890

(maxns +

5891

1) *

5892

sizeof(xmlNsPtr));

5893

if (ret == NULL) {

5894

xmlTreeErrMemory("getting namespace list");

5895

return (NULL);

5896

}

5897

}

5898

ret[nbns++] = cur;

5899

ret[nbns] = NULL;

5900

}

5901

5902

cur = cur->next;

5903

}

5904

}

5905

node = node->parent;

5906

}

5907

return (ret);

5908

}

5909

#endif /* LIBXML_TREE_ENABLED */

5910

5911

/*

5912

* xmlTreeEnsureXMLDecl:

5913

* @doc: the doc

5914

*

5915

* Ensures that there is an XML namespace declaration on the doc.

5916

*

5917

* Returns the XML ns-struct or NULL on API and internal errors.

5918

*/

5919

static xmlNsPtr

5920

xmlTreeEnsureXMLDecl(xmlDocPtr doc)

5921

{

5922

if (doc == NULL)

5923

return (NULL);

5924

if (doc->oldNs != NULL)

5925

return (doc->oldNs);

5926

{

5927

xmlNsPtr ns;

5928

ns = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));

5929

if (ns == NULL) {

5930

xmlTreeErrMemory(

5931

"allocating the XML namespace");

5932

return (NULL);

5933

}

5934

memset(ns, 0, sizeof(xmlNs));

5935

ns->type = XML_LOCAL_NAMESPACE;

5936

ns->href = xmlStrdup(XML_XML_NAMESPACE);

5937

ns->prefix = xmlStrdup((const xmlChar *)"xml");

5938

doc->oldNs = ns;

5939

return (ns);

5940

}

5941

}

5942

5943

/**

5944

* xmlSearchNs:

5945

* @doc: the document

5946

* @node: the current node

5947

* @nameSpace: the namespace prefix

5948

*

5949

* Search a Ns registered under a given name space for a document.

5950

* recurse on the parents until it finds the defined namespace

5951

* or return NULL otherwise.

5952

* @nameSpace can be NULL, this is a search for the default namespace.

5953

* We don't allow to cross entities boundaries. If you don't declare

5954

* the namespace within those you will be in troubles !!! A warning

5955

* is generated to cover this case.

5956

*

5957

* Returns the namespace pointer or NULL.

5958

*/

5959

xmlNsPtr

5960

xmlSearchNs(xmlDocPtr doc, xmlNodePtr node, const xmlChar *nameSpace) {

5961

5962

xmlNsPtr cur;

5963

xmlNodePtr orig = node;

5964

5965

if ((node == NULL) || (node->type == XML_NAMESPACE_DECL)) return(NULL);

5966

if ((nameSpace != NULL) &&

5967

(xmlStrEqual(nameSpace, (const xmlChar *)"xml"))) {

5968

if ((doc == NULL) && (node->type == XML_ELEMENT_NODE)) {

5969

/*

5970

* The XML-1.0 namespace is normally held on the root

5971

* element. In this case exceptionally create it on the

5972

* node element.

5973

*/

5974

cur = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));

5975

if (cur == NULL) {

5976

xmlTreeErrMemory("searching namespace");

5977

return(NULL);

5978

}

5979

memset(cur, 0, sizeof(xmlNs));

5980

cur->type = XML_LOCAL_NAMESPACE;

5981

cur->href = xmlStrdup(XML_XML_NAMESPACE);

5982

cur->prefix = xmlStrdup((const xmlChar *)"xml");

5983

cur->next = node->nsDef;

5984

node->nsDef = cur;

5985

return(cur);

5986

}

5987

if (doc == NULL) {

5988

doc = node->doc;

5989

if (doc == NULL)

5990

return(NULL);

5991

}

5992

/*

5993

* Return the XML namespace declaration held by the doc.

5994

*/

5995

if (doc->oldNs == NULL)

5996

return(xmlTreeEnsureXMLDecl(doc));

5997

else

5998

return(doc->oldNs);

5999

}

6000

while (node != NULL) {

6001

if ((node->type == XML_ENTITY_REF_NODE) ||

6002

(node->type == XML_ENTITY_NODE) ||

6003

(node->type == XML_ENTITY_DECL))

6004

return(NULL);

6005

if (node->type == XML_ELEMENT_NODE) {

6006

cur = node->nsDef;

6007

while (cur != NULL) {

6008

if ((cur->prefix == NULL) && (nameSpace == NULL) &&

6009

(cur->href != NULL))

6010

return(cur);

6011

if ((cur->prefix != NULL) && (nameSpace != NULL) &&

6012

(cur->href != NULL) &&

6013

(xmlStrEqual(cur->prefix, nameSpace)))

6014

return(cur);

6015

cur = cur->next;

6016

}

6017

if (orig != node) {

6018

cur = node->ns;

6019

if (cur != NULL) {

6020

if ((cur->prefix == NULL) && (nameSpace == NULL) &&

6021

(cur->href != NULL))

6022

return(cur);

6023

if ((cur->prefix != NULL) && (nameSpace != NULL) &&

6024

(cur->href != NULL) &&

6025

(xmlStrEqual(cur->prefix, nameSpace)))

6026

return(cur);

6027

}

6028

}

6029

}

6030

node = node->parent;

6031

}

6032

return(NULL);

6033

}

6034

6035

/**

6036

* xmlNsInScope:

6037

* @doc: the document

6038

* @node: the current node

6039

* @ancestor: the ancestor carrying the namespace

6040

* @prefix: the namespace prefix

6041

*

6042

* Verify that the given namespace held on @ancestor is still in scope

6043

* on node.

6044

*

6045

* Returns 1 if true, 0 if false and -1 in case of error.

6046

*/

6047

static int

6048

xmlNsInScope(xmlDocPtr doc ATTRIBUTE_UNUSED, xmlNodePtr node,

6049

xmlNodePtr ancestor, const xmlChar * prefix)

6050

{

6051

xmlNsPtr tst;

6052

6053

while ((node != NULL) && (node != ancestor)) {

6054

if ((node->type == XML_ENTITY_REF_NODE) ||

6055

(node->type == XML_ENTITY_NODE) ||

6056

(node->type == XML_ENTITY_DECL))

6057

return (-1);

6058

if (node->type == XML_ELEMENT_NODE) {

6059

tst = node->nsDef;

6060

while (tst != NULL) {

6061

if ((tst->prefix == NULL)

6062

&& (prefix == NULL))

6063

return (0);

6064

if ((tst->prefix != NULL)

6065

&& (prefix != NULL)

6066

&& (xmlStrEqual(tst->prefix, prefix)))

6067

return (0);

6068

tst = tst->next;

6069

}

6070

}

6071

node = node->parent;

6072

}

6073

if (node != ancestor)

6074

return (-1);

6075

return (1);

6076

}

6077

6078

/**

6079

* xmlSearchNsByHref:

6080

* @doc: the document

6081

* @node: the current node

6082

* @href: the namespace value

6083

*

6084

* Search a Ns aliasing a given URI. Recurse on the parents until it finds

6085

* the defined namespace or return NULL otherwise.

6086

* Returns the namespace pointer or NULL.

6087

*/

6088

xmlNsPtr

6089

xmlSearchNsByHref(xmlDocPtr doc, xmlNodePtr node, const xmlChar * href)

6090

{

6091

xmlNsPtr cur;

6092

xmlNodePtr orig = node;

6093

int is_attr;

6094

6095

if ((node == NULL) || (node->type == XML_NAMESPACE_DECL) || (href == NULL))

6096

return (NULL);

6097

if (xmlStrEqual(href, XML_XML_NAMESPACE)) {

6098

/*

6099

* Only the document can hold the XML spec namespace.

6100

*/

6101

if ((doc == NULL) && (node->type == XML_ELEMENT_NODE)) {

6102

/*

6103

* The XML-1.0 namespace is normally held on the root

6104

* element. In this case exceptionally create it on the

6105

* node element.

6106

*/

6107

cur = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));

6108

if (cur == NULL) {

6109

xmlTreeErrMemory("searching namespace");

6110

return (NULL);

6111

}

6112

memset(cur, 0, sizeof(xmlNs));

6113

cur->type = XML_LOCAL_NAMESPACE;

6114

cur->href = xmlStrdup(XML_XML_NAMESPACE);

6115

cur->prefix = xmlStrdup((const xmlChar *) "xml");

6116

cur->next = node->nsDef;

6117

node->nsDef = cur;

6118

return (cur);

6119

}

6120

if (doc == NULL) {

6121

doc = node->doc;

6122

if (doc == NULL)

6123

return(NULL);

6124

}

6125

/*

6126

* Return the XML namespace declaration held by the doc.

6127

*/

6128

if (doc->oldNs == NULL)

6129

return(xmlTreeEnsureXMLDecl(doc));

6130

else

6131

return(doc->oldNs);

6132

}

6133

is_attr = (node->type == XML_ATTRIBUTE_NODE);

6134

while (node != NULL) {

6135

if ((node->type == XML_ENTITY_REF_NODE) ||

6136

(node->type == XML_ENTITY_NODE) ||

6137

(node->type == XML_ENTITY_DECL))

6138

return (NULL);

6139

if (node->type == XML_ELEMENT_NODE) {

6140

cur = node->nsDef;

6141

while (cur != NULL) {

6142

if ((cur->href != NULL) && (href != NULL) &&

6143

(xmlStrEqual(cur->href, href))) {

6144

if (((!is_attr) || (cur->prefix != NULL)) &&

6145

(xmlNsInScope(doc, orig, node, cur->prefix) == 1))

6146

return (cur);

6147

}

6148

cur = cur->next;

6149

}

6150

if (orig != node) {

6151

cur = node->ns;

6152

if (cur != NULL) {

6153

if ((cur->href != NULL) && (href != NULL) &&

6154

(xmlStrEqual(cur->href, href))) {

6155

if (((!is_attr) || (cur->prefix != NULL)) &&

6156

(xmlNsInScope(doc, orig, node, cur->prefix) == 1))

6157

return (cur);

6158

}

6159

}

6160

}

6161

}

6162

node = node->parent;

6163

}

6164

return (NULL);

6165

}

6166

6167

/**

6168

* xmlNewReconciliedNs:

6169

* @doc: the document

6170

* @tree: a node expected to hold the new namespace

6171

* @ns: the original namespace

6172

*

6173

* This function tries to locate a namespace definition in a tree

6174

* ancestors, or create a new namespace definition node similar to

6175

* @ns trying to reuse the same prefix. However if the given prefix is

6176

* null (default namespace) or reused within the subtree defined by

6177

* @tree or on one of its ancestors then a new prefix is generated.

6178

* Returns the (new) namespace definition or NULL in case of error

6179

*/

6180

static xmlNsPtr

6181

xmlNewReconciliedNs(xmlDocPtr doc, xmlNodePtr tree, xmlNsPtr ns) {

6182

xmlNsPtr def;

6183

xmlChar prefix[50];

6184

int counter = 1;

6185

6186

if ((tree == NULL) || (tree->type != XML_ELEMENT_NODE)) {

6187

#ifdef DEBUG_TREE

6188

xmlGenericError(xmlGenericErrorContext,

6189

"xmlNewReconciliedNs : tree == NULL\n");

6190

#endif

6191

return(NULL);

6192

}

6193

if ((ns == NULL) || (ns->type != XML_NAMESPACE_DECL)) {

6194

#ifdef DEBUG_TREE

6195

xmlGenericError(xmlGenericErrorContext,

6196

"xmlNewReconciliedNs : ns == NULL\n");

6197

#endif

6198

return(NULL);

6199

}

6200

/*

6201

* Search an existing namespace definition inherited.

6202

*/

6203

def = xmlSearchNsByHref(doc, tree, ns->href);

6204

if (def != NULL)

6205

return(def);

6206

6207

/*

6208

* Find a close prefix which is not already in use.

6209

* Let's strip namespace prefixes longer than 20 chars !

6210

*/

6211

if (ns->prefix == NULL)

6212

snprintf((char *) prefix, sizeof(prefix), "default");

6213

else

6214

snprintf((char *) prefix, sizeof(prefix), "%.20s", (char *)ns->prefix);

6215

6216

def = xmlSearchNs(doc, tree, prefix);

6217

while (def != NULL) {

6218

if (counter > 1000) return(NULL);

6219

if (ns->prefix == NULL)

6220

snprintf((char *) prefix, sizeof(prefix), "default%d", counter++);

6221

else

6222

snprintf((char *) prefix, sizeof(prefix), "%.20s%d",

6223

(char *)ns->prefix, counter++);

6224

def = xmlSearchNs(doc, tree, prefix);

6225

}

6226

6227

/*

6228

* OK, now we are ready to create a new one.

6229

*/

6230

def = xmlNewNs(tree, ns->href, prefix);

6231

return(def);

6232

}

6233

6234

#ifdef LIBXML_TREE_ENABLED

6235

/**

6236

* xmlReconciliateNs:

6237

* @doc: the document

6238

* @tree: a node defining the subtree to reconciliate

6239

*

6240

* This function checks that all the namespaces declared within the given

6241

* tree are properly declared. This is needed for example after Copy or Cut

6242

* and then paste operations. The subtree may still hold pointers to

6243

* namespace declarations outside the subtree or invalid/masked. As much

6244

* as possible the function try to reuse the existing namespaces found in

6245

* the new environment. If not possible the new namespaces are redeclared

6246

* on @tree at the top of the given subtree.

6247

* Returns the number of namespace declarations created or -1 in case of error.

6248

*/

6249

int

6250

xmlReconciliateNs(xmlDocPtr doc, xmlNodePtr tree) {

6251

xmlNsPtr *oldNs = NULL;

6252

xmlNsPtr *newNs = NULL;

6253

int sizeCache = 0;

6254

int nbCache = 0;

6255

6256

xmlNsPtr n;

6257

xmlNodePtr node = tree;

6258

xmlAttrPtr attr;

6259

int ret = 0, i;

6260

6261

if ((node == NULL) || (node->type != XML_ELEMENT_NODE)) return(-1);

6262

if ((doc == NULL) || (doc->type != XML_DOCUMENT_NODE)) return(-1);

6263

if (node->doc != doc) return(-1);

6264

while (node != NULL) {

6265

/*

6266

* Reconciliate the node namespace

6267

*/

6268

if (node->ns != NULL) {

6269

/*

6270

* initialize the cache if needed

6271

*/

6272

if (sizeCache == 0) {

6273

sizeCache = 10;

6274

oldNs = (xmlNsPtr *) xmlMalloc(sizeCache *

6275

sizeof(xmlNsPtr));

6276

if (oldNs == NULL) {

6277

xmlTreeErrMemory("fixing namespaces");

6278

return(-1);

6279

}

6280

newNs = (xmlNsPtr *) xmlMalloc(sizeCache *

6281

sizeof(xmlNsPtr));

6282

if (newNs == NULL) {

6283

xmlTreeErrMemory("fixing namespaces");

6284

xmlFree(oldNs);

6285

return(-1);

6286

}

6287

}

6288

for (i = 0;i < nbCache;i++) {

6289

if (oldNs[i] == node->ns) {

6290

node->ns = newNs[i];

6291

break;

6292

}

6293

}

6294

if (i == nbCache) {

6295

/*

6296

* OK we need to recreate a new namespace definition

6297

*/

6298

n = xmlNewReconciliedNs(doc, tree, node->ns);

6299

if (n != NULL) { /* :-( what if else ??? */

6300

/*

6301

* check if we need to grow the cache buffers.

6302

*/

6303

if (sizeCache <= nbCache) {

6304

sizeCache *= 2;

6305

oldNs = (xmlNsPtr *) xmlRealloc(oldNs, sizeCache *

6306

sizeof(xmlNsPtr));

6307

if (oldNs == NULL) {

6308

xmlTreeErrMemory("fixing namespaces");

6309

xmlFree(newNs);

6310

return(-1);

6311

}

6312

newNs = (xmlNsPtr *) xmlRealloc(newNs, sizeCache *

6313

sizeof(xmlNsPtr));

6314

if (newNs == NULL) {

6315

xmlTreeErrMemory("fixing namespaces");

6316

xmlFree(oldNs);

6317

return(-1);

6318

}

6319

}

6320

newNs[nbCache] = n;

6321

oldNs[nbCache++] = node->ns;

6322

node->ns = n;

6323

}

6324

}

6325

}

6326

/*

6327

* now check for namespace hold by attributes on the node.

6328

*/

6329

if (node->type == XML_ELEMENT_NODE) {

6330

attr = node->properties;

6331

while (attr != NULL) {

6332

if (attr->ns != NULL) {

6333

/*

6334

* initialize the cache if needed

6335

*/

6336

if (sizeCache == 0) {

6337

sizeCache = 10;

6338

oldNs = (xmlNsPtr *) xmlMalloc(sizeCache *

6339

sizeof(xmlNsPtr));

6340

if (oldNs == NULL) {

6341

xmlTreeErrMemory("fixing namespaces");

6342

return(-1);

6343

}

6344

newNs = (xmlNsPtr *) xmlMalloc(sizeCache *

6345

sizeof(xmlNsPtr));

6346

if (newNs == NULL) {

6347

xmlTreeErrMemory("fixing namespaces");

6348

xmlFree(oldNs);

6349

return(-1);

6350

}

6351

}

6352

for (i = 0;i < nbCache;i++) {

6353

if (oldNs[i] == attr->ns) {

6354

attr->ns = newNs[i];

6355

break;

6356

}

6357

}

6358

if (i == nbCache) {

6359

/*

6360

* OK we need to recreate a new namespace definition

6361

*/

6362

n = xmlNewReconciliedNs(doc, tree, attr->ns);

6363

if (n != NULL) { /* :-( what if else ??? */

6364

/*

6365

* check if we need to grow the cache buffers.

6366

*/

6367

if (sizeCache <= nbCache) {

6368

sizeCache *= 2;

6369

oldNs = (xmlNsPtr *) xmlRealloc(oldNs,

6370

sizeCache * sizeof(xmlNsPtr));

6371

if (oldNs == NULL) {

6372

xmlTreeErrMemory("fixing namespaces");

6373

xmlFree(newNs);

6374

return(-1);

6375

}

6376

newNs = (xmlNsPtr *) xmlRealloc(newNs,

6377

sizeCache * sizeof(xmlNsPtr));

6378

if (newNs == NULL) {

6379

xmlTreeErrMemory("fixing namespaces");

6380

xmlFree(oldNs);

6381

return(-1);

6382

}

6383

}

6384

newNs[nbCache] = n;

6385

oldNs[nbCache++] = attr->ns;

6386

attr->ns = n;

6387

}

6388

}

6389

}

6390

attr = attr->next;

6391

}

6392

}

6393

6394

/*

6395

* Browse the full subtree, deep first

6396

*/

6397

if ((node->children != NULL) && (node->type != XML_ENTITY_REF_NODE)) {

6398

/* deep first */

6399

node = node->children;

6400

} else if ((node != tree) && (node->next != NULL)) {

6401

/* then siblings */

6402

node = node->next;

6403

} else if (node != tree) {

6404

/* go up to parents->next if needed */

6405

while (node != tree) {

6406

if (node->parent != NULL)

6407

node = node->parent;

6408

if ((node != tree) && (node->next != NULL)) {

6409

node = node->next;

6410

break;

6411

}

6412

if (node->parent == NULL) {

6413

node = NULL;

6414

break;

6415

}

6416

}

6417

/* exit condition */

6418

if (node == tree)

6419

node = NULL;

6420

} else

6421

break;

6422

}

6423

if (oldNs != NULL)

6424

xmlFree(oldNs);

6425

if (newNs != NULL)

6426

xmlFree(newNs);

6427

return(ret);

6428

}

6429

#endif /* LIBXML_TREE_ENABLED */

6430

6431

static xmlAttrPtr

6432

xmlGetPropNodeInternal(xmlNodePtr node, const xmlChar *name,

6433

const xmlChar *nsName, int useDTD)

6434

{

6435

xmlAttrPtr prop;

6436

6437

if ((node == NULL) || (node->type != XML_ELEMENT_NODE) || (name == NULL))

6438

return(NULL);

6439

6440

if (node->properties != NULL) {

6441

prop = node->properties;

6442

if (nsName == NULL) {

6443

/*

6444

* We want the attr to be in no namespace.

6445

*/

6446

do {

6447

if ((prop->ns == NULL) && xmlStrEqual(prop->name, name)) {

6448

return(prop);

6449

}

6450

prop = prop->next;

6451

} while (prop != NULL);

6452

} else {

6453

/*

6454

* We want the attr to be in the specified namespace.

6455

*/

6456

do {

6457

if ((prop->ns != NULL) && xmlStrEqual(prop->name, name) &&

6458

((prop->ns->href == nsName) ||

6459

xmlStrEqual(prop->ns->href, nsName)))

6460

{

6461

return(prop);

6462

}

6463

prop = prop->next;

6464

} while (prop != NULL);

6465

}

6466

}

6467

6468

#ifdef LIBXML_TREE_ENABLED

6469

if (! useDTD)

6470

return(NULL);

6471

/*

6472

* Check if there is a default/fixed attribute declaration in

6473

* the internal or external subset.

6474

*/

6475

if ((node->doc != NULL) && (node->doc->intSubset != NULL)) {

6476

xmlDocPtr doc = node->doc;

6477

xmlAttributePtr attrDecl = NULL;

6478

xmlChar *elemQName, *tmpstr = NULL;

6479

6480

/*

6481

* We need the QName of the element for the DTD-lookup.

6482

*/

6483

if ((node->ns != NULL) && (node->ns->prefix != NULL)) {

6484

tmpstr = xmlStrdup(node->ns->prefix);

6485

tmpstr = xmlStrcat(tmpstr, BAD_CAST ":");

6486

tmpstr = xmlStrcat(tmpstr, node->name);

6487

if (tmpstr == NULL)

6488

return(NULL);

6489

elemQName = tmpstr;

6490

} else

6491

elemQName = (xmlChar *) node->name;

6492

if (nsName == NULL) {

6493

/*

6494

* The common and nice case: Attr in no namespace.

6495

*/

6496

attrDecl = xmlGetDtdQAttrDesc(doc->intSubset,

6497

elemQName, name, NULL);

6498

if ((attrDecl == NULL) && (doc->extSubset != NULL)) {

6499

attrDecl = xmlGetDtdQAttrDesc(doc->extSubset,

6500

elemQName, name, NULL);

6501

}

6502

} else {

6503

xmlNsPtr *nsList, *cur;

6504

6505

/*

6506

* The ugly case: Search using the prefixes of in-scope

6507

* ns-decls corresponding to @nsName.

6508

*/

6509

nsList = xmlGetNsList(node->doc, node);

6510

if (nsList == NULL) {

6511

if (tmpstr != NULL)

6512

xmlFree(tmpstr);

6513

return(NULL);

6514

}

6515

cur = nsList;

6516

while (*cur != NULL) {

6517

if (xmlStrEqual((*cur)->href, nsName)) {

6518

attrDecl = xmlGetDtdQAttrDesc(doc->intSubset, elemQName,

6519

name, (*cur)->prefix);

6520

if (attrDecl)

6521

break;

6522

if (doc->extSubset != NULL) {

6523

attrDecl = xmlGetDtdQAttrDesc(doc->extSubset, elemQName,

6524

name, (*cur)->prefix);

6525

if (attrDecl)

6526

break;

6527

}

6528

}

6529

cur++;

6530

}

6531

xmlFree(nsList);

6532

}

6533

if (tmpstr != NULL)

6534

xmlFree(tmpstr);

6535

/*

6536

* Only default/fixed attrs are relevant.

6537

*/

6538

if ((attrDecl != NULL) && (attrDecl->defaultValue != NULL))

6539

return((xmlAttrPtr) attrDecl);

6540

}

6541

#endif /* LIBXML_TREE_ENABLED */

6542

return(NULL);

6543

}

6544

6545

static xmlChar*

6546

xmlGetPropNodeValueInternal(xmlAttrPtr prop)

6547

{

6548

if (prop == NULL)

6549

return(NULL);

6550

if (prop->type == XML_ATTRIBUTE_NODE) {

6551

/*

6552

* Note that we return at least the empty string.

6553

* TODO: Do we really always want that?

6554

*/

6555

if (prop->children != NULL) {

6556

if ((prop->children->next == NULL) &&

6557

((prop->children->type == XML_TEXT_NODE) ||

6558

(prop->children->type == XML_CDATA_SECTION_NODE)))

6559

{

6560

/*

6561

* Optimization for the common case: only 1 text node.

6562

*/

6563

return(xmlStrdup(prop->children->content));

6564

} else {

6565

xmlChar *ret;

6566

6567

ret = xmlNodeListGetString(prop->doc, prop->children, 1);

6568

if (ret != NULL)

6569

return(ret);

6570

}

6571

}

6572

return(xmlStrdup((xmlChar *)""));

6573

} else if (prop->type == XML_ATTRIBUTE_DECL) {

6574

return(xmlStrdup(((xmlAttributePtr)prop)->defaultValue));

6575

}

6576

return(NULL);

6577

}

6578

6579

/**

6580

* xmlHasProp:

6581

* @node: the node

6582

* @name: the attribute name

6583

*

6584

* Search an attribute associated to a node

6585

* This function also looks in DTD attribute declaration for #FIXED or

6586

* default declaration values unless DTD use has been turned off.

6587

*

6588

* Returns the attribute or the attribute declaration or NULL if

6589

* neither was found.

6590

*/

6591

xmlAttrPtr

6592

xmlHasProp(xmlNodePtr node, const xmlChar *name) {

6593

xmlAttrPtr prop;

6594

xmlDocPtr doc;

6595

6596

if ((node == NULL) || (node->type != XML_ELEMENT_NODE) || (name == NULL))

6597

return(NULL);

6598

/*

6599

* Check on the properties attached to the node

6600

*/

6601

prop = node->properties;

6602

while (prop != NULL) {

6603

if (xmlStrEqual(prop->name, name)) {

6604

return(prop);

6605

}

6606

prop = prop->next;

6607

}

6608

if (!xmlCheckDTD) return(NULL);

6609

6610

/*

6611

* Check if there is a default declaration in the internal

6612

* or external subsets

6613

*/

6614

doc = node->doc;

6615

if (doc != NULL) {

6616

xmlAttributePtr attrDecl;

6617

if (doc->intSubset != NULL) {

6618

attrDecl = xmlGetDtdAttrDesc(doc->intSubset, node->name, name);

6619

if ((attrDecl == NULL) && (doc->extSubset != NULL))

6620

attrDecl = xmlGetDtdAttrDesc(doc->extSubset, node->name, name);

6621

if ((attrDecl != NULL) && (attrDecl->defaultValue != NULL))

6622

/* return attribute declaration only if a default value is given

6623

(that includes #FIXED declarations) */

6624

return((xmlAttrPtr) attrDecl);

6625

}

6626

}

6627

return(NULL);

6628

}

6629

6630

/**

6631

* xmlHasNsProp:

6632

* @node: the node

6633

* @name: the attribute name

6634

* @nameSpace: the URI of the namespace

6635

*

6636

* Search for an attribute associated to a node

6637

* This attribute has to be anchored in the namespace specified.

6638

* This does the entity substitution.

6639

* This function looks in DTD attribute declaration for #FIXED or

6640

* default declaration values unless DTD use has been turned off.

6641

* Note that a namespace of NULL indicates to use the default namespace.

6642

*

6643

* Returns the attribute or the attribute declaration or NULL

6644

* if neither was found.

6645

*/

6646

xmlAttrPtr

6647

xmlHasNsProp(xmlNodePtr node, const xmlChar *name, const xmlChar *nameSpace) {

6648

6649

return(xmlGetPropNodeInternal(node, name, nameSpace, xmlCheckDTD));

6650

}

6651

6652

/**

6653

* xmlGetProp:

6654

* @node: the node

6655

* @name: the attribute name

6656

*

6657

* Search and get the value of an attribute associated to a node

6658

* This does the entity substitution.

6659

* This function looks in DTD attribute declaration for #FIXED or

6660

* default declaration values unless DTD use has been turned off.

6661

* NOTE: this function acts independently of namespaces associated

6662

* to the attribute. Use xmlGetNsProp() or xmlGetNoNsProp()

6663

* for namespace aware processing.

6664

*

6665

* Returns the attribute value or NULL if not found.

6666

* It's up to the caller to free the memory with xmlFree().

6667

*/

6668

xmlChar *

6669

xmlGetProp(xmlNodePtr node, const xmlChar *name) {

6670

xmlAttrPtr prop;

6671

6672

prop = xmlHasProp(node, name);

6673

if (prop == NULL)

6674

return(NULL);

6675

return(xmlGetPropNodeValueInternal(prop));

6676

}

6677

6678

/**

6679

* xmlGetNoNsProp:

6680

* @node: the node

6681

* @name: the attribute name

6682

*

6683

* Search and get the value of an attribute associated to a node

6684

* This does the entity substitution.

6685

* This function looks in DTD attribute declaration for #FIXED or

6686

* default declaration values unless DTD use has been turned off.

6687

* This function is similar to xmlGetProp except it will accept only

6688

* an attribute in no namespace.

6689

*

6690

* Returns the attribute value or NULL if not found.

6691

* It's up to the caller to free the memory with xmlFree().

6692

*/

6693

xmlChar *

6694

xmlGetNoNsProp(xmlNodePtr node, const xmlChar *name) {

6695

xmlAttrPtr prop;

6696

6697

prop = xmlGetPropNodeInternal(node, name, NULL, xmlCheckDTD);

6698

if (prop == NULL)

6699

return(NULL);

6700

return(xmlGetPropNodeValueInternal(prop));

6701

}

6702

6703

/**

6704

* xmlGetNsProp:

6705

* @node: the node

6706

* @name: the attribute name

6707

* @nameSpace: the URI of the namespace

6708

*

6709

* Search and get the value of an attribute associated to a node

6710

* This attribute has to be anchored in the namespace specified.

6711

* This does the entity substitution.

6712

* This function looks in DTD attribute declaration for #FIXED or

6713

* default declaration values unless DTD use has been turned off.

6714

*

6715

* Returns the attribute value or NULL if not found.

6716

* It's up to the caller to free the memory with xmlFree().

6717

*/

6718

xmlChar *

6719

xmlGetNsProp(xmlNodePtr node, const xmlChar *name, const xmlChar *nameSpace) {

6720

xmlAttrPtr prop;

6721

6722

prop = xmlGetPropNodeInternal(node, name, nameSpace, xmlCheckDTD);

6723

if (prop == NULL)

6724

return(NULL);

6725

return(xmlGetPropNodeValueInternal(prop));

6726

}

6727

6728

#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED)

6729

/**

6730

* xmlUnsetProp:

6731

* @node: the node

6732

* @name: the attribute name

6733

*

6734

* Remove an attribute carried by a node.

6735

* This handles only attributes in no namespace.

6736

* Returns 0 if successful, -1 if not found

6737

*/

6738

int

6739

xmlUnsetProp(xmlNodePtr node, const xmlChar *name) {

6740

xmlAttrPtr prop;

6741

6742

prop = xmlGetPropNodeInternal(node, name, NULL, 0);

6743

if (prop == NULL)

6744

return(-1);

6745

xmlUnlinkNode((xmlNodePtr) prop);

6746

xmlFreeProp(prop);

6747

return(0);

6748

}

6749

6750

/**

6751

* xmlUnsetNsProp:

6752

* @node: the node

6753

* @ns: the namespace definition

6754

* @name: the attribute name

6755

*

6756

* Remove an attribute carried by a node.

6757

* Returns 0 if successful, -1 if not found

6758

*/

6759

int

6760

xmlUnsetNsProp(xmlNodePtr node, xmlNsPtr ns, const xmlChar *name) {

6761

xmlAttrPtr prop;

6762

6763

prop = xmlGetPropNodeInternal(node, name, (ns != NULL) ? ns->href : NULL, 0);

6764

if (prop == NULL)

6765

return(-1);

6766

xmlUnlinkNode((xmlNodePtr) prop);

6767

xmlFreeProp(prop);

6768

return(0);

6769

}

6770

#endif

6771

6772

#if defined(LIBXML_TREE_ENABLED) || defined(LIBXML_XINCLUDE_ENABLED) || defined(LIBXML_SCHEMAS_ENABLED) || defined(LIBXML_HTML_ENABLED)

6773

/**

6774

* xmlSetProp:

6775

* @node: the node

6776

* @name: the attribute name (a QName)

6777

* @value: the attribute value

6778

*

6779

* Set (or reset) an attribute carried by a node.

6780

* If @name has a prefix, then the corresponding

6781

* namespace-binding will be used, if in scope; it is an

6782

* error it there's no such ns-binding for the prefix in

6783

* scope.

6784

* Returns the attribute pointer.

6785

*

6786

*/

6787

xmlAttrPtr

6788

xmlSetProp(xmlNodePtr node, const xmlChar *name, const xmlChar *value) {

6789

int len;

6790

const xmlChar *nqname;

6791

6792

if ((node == NULL) || (name == NULL) || (node->type != XML_ELEMENT_NODE))

6793

return(NULL);

6794

6795

/*

6796

* handle QNames

6797

*/

6798

nqname = xmlSplitQName3(name, &len);

6799

if (nqname != NULL) {

6800

xmlNsPtr ns;

6801

xmlChar *prefix = xmlStrndup(name, len);

6802

ns = xmlSearchNs(node->doc, node, prefix);

6803

if (prefix != NULL)

6804

xmlFree(prefix);

6805

if (ns != NULL)

6806

return(xmlSetNsProp(node, ns, nqname, value));

6807

}

6808

return(xmlSetNsProp(node, NULL, name, value));

6809

}

6810

6811

/**

6812

* xmlSetNsProp:

6813

* @node: the node

6814

* @ns: the namespace definition

6815

* @name: the attribute name

6816

* @value: the attribute value

6817

*

6818

* Set (or reset) an attribute carried by a node.

6819

* The ns structure must be in scope, this is not checked

6820

*

6821

* Returns the attribute pointer.

6822

*/

6823

xmlAttrPtr

6824

xmlSetNsProp(xmlNodePtr node, xmlNsPtr ns, const xmlChar *name,

6825

const xmlChar *value)

6826

{

6827

xmlAttrPtr prop;

6828

6829

if (ns && (ns->href == NULL))

6830

return(NULL);

6831

prop = xmlGetPropNodeInternal(node, name, (ns != NULL) ? ns->href : NULL, 0);

6832

if (prop != NULL) {

6833

/*

6834

* Modify the attribute's value.

6835

*/

6836

if (prop->atype == XML_ATTRIBUTE_ID) {

6837

xmlRemoveID(node->doc, prop);

6838

prop->atype = XML_ATTRIBUTE_ID;

6839

}

6840

if (prop->children != NULL)

6841

xmlFreeNodeList(prop->children);

6842

prop->children = NULL;

6843

prop->last = NULL;

6844

prop->ns = ns;

6845

if (value != NULL) {

6846

xmlNodePtr tmp;

6847

6848

if(!xmlCheckUTF8(value)) {

6849

xmlTreeErr(XML_TREE_NOT_UTF8, (xmlNodePtr) node->doc,

6850

NULL);

6851

if (node->doc != NULL)

6852

node->doc->encoding = xmlStrdup(BAD_CAST "ISO-8859-1");

6853

}

6854

prop->children = xmlNewDocText(node->doc, value);

6855

prop->last = NULL;

6856

tmp = prop->children;

6857

while (tmp != NULL) {

6858

tmp->parent = (xmlNodePtr) prop;

6859

if (tmp->next == NULL)

6860

prop->last = tmp;

6861

tmp = tmp->next;

6862

}

6863

}

6864

if (prop->atype == XML_ATTRIBUTE_ID)

6865

xmlAddID(NULL, node->doc, value, prop);

6866

return(prop);

6867

}

6868

/*

6869

* No equal attr found; create a new one.

6870

*/

6871

return(xmlNewPropInternal(node, ns, name, value, 0));

6872

}

6873

6874

#endif /* LIBXML_TREE_ENABLED */

6875

6876

/**

6877

* xmlNodeIsText:

6878

* @node: the node

6879

*

6880

* Is this node a Text node ?

6881

* Returns 1 yes, 0 no

6882

*/

6883

int

6884

xmlNodeIsText(xmlNodePtr node) {

6885

if (node == NULL) return(0);

6886

6887

if (node->type == XML_TEXT_NODE) return(1);

6888

return(0);

6889

}

6890

6891

/**

6892

* xmlIsBlankNode:

6893

* @node: the node

6894

*

6895

* Checks whether this node is an empty or whitespace only

6896

* (and possibly ignorable) text-node.

6897

*

6898

* Returns 1 yes, 0 no

6899

*/

6900

int

6901

xmlIsBlankNode(xmlNodePtr node) {

6902

const xmlChar *cur;

6903

if (node == NULL) return(0);

6904

6905

if ((node->type != XML_TEXT_NODE) &&

6906

(node->type != XML_CDATA_SECTION_NODE))

6907

return(0);

6908

if (node->content == NULL) return(1);

6909

cur = node->content;

6910

while (*cur != 0) {

6911

if (!IS_BLANK_CH(*cur)) return(0);

6912

cur++;

6913

}

6914

6915

return(1);

6916

}

6917

6918

/**

6919

* xmlTextConcat:

6920

* @node: the node

6921

* @content: the content

6922

* @len: @content length

6923

*

6924

* Concat the given string at the end of the existing node content

6925

*

6926

* Returns -1 in case of error, 0 otherwise

6927

*/

6928

6929

int

6930

xmlTextConcat(xmlNodePtr node, const xmlChar *content, int len) {

6931

if (node == NULL) return(-1);

6932

6933

if ((node->type != XML_TEXT_NODE) &&

6934

(node->type != XML_CDATA_SECTION_NODE) &&

6935

(node->type != XML_COMMENT_NODE) &&

6936

(node->type != XML_PI_NODE)) {

6937

#ifdef DEBUG_TREE

6938

xmlGenericError(xmlGenericErrorContext,

6939

"xmlTextConcat: node is not text nor CDATA\n");

6940

#endif

6941

return(-1);

6942

}

6943

/* need to check if content is currently in the dictionary */

6944

if ((node->content == (xmlChar *) &(node->properties)) ||

6945

((node->doc != NULL) && (node->doc->dict != NULL) &&

6946

xmlDictOwns(node->doc->dict, node->content))) {

6947

node->content = xmlStrncatNew(node->content, content, len);

6948

} else {

6949

node->content = xmlStrncat(node->content, content, len);

6950

}

6951

node->properties = NULL;

6952

if (node->content == NULL)

6953

return(-1);

6954

return(0);

6955

}

6956

6957

/************************************************************************

6958

* *

6959

* Output : to a FILE or in memory *

6960

* *

6961

************************************************************************/

6962

6963

/**

6964

* xmlBufferCreate:

6965

*

6966

* routine to create an XML buffer.

6967

* returns the new structure.

6968

*/

6969

xmlBufferPtr

6970

xmlBufferCreate(void) {

6971

xmlBufferPtr ret;

6972

6973

ret = (xmlBufferPtr) xmlMalloc(sizeof(xmlBuffer));

6974

if (ret == NULL) {

6975

xmlTreeErrMemory("creating buffer");

6976

return(NULL);

6977

}

6978

ret->use = 0;

6979

ret->size = xmlDefaultBufferSize;

6980

ret->alloc = xmlBufferAllocScheme;

6981

ret->content = (xmlChar *) xmlMallocAtomic(ret->size * sizeof(xmlChar));

6982

if (ret->content == NULL) {

6983

xmlTreeErrMemory("creating buffer");

6984

xmlFree(ret);

6985

return(NULL);

6986

}

6987

ret->content[0] = 0;

6988

ret->contentIO = NULL;

6989

return(ret);

6990

}

6991

6992

/**

6993

* xmlBufferCreateSize:

6994

* @size: initial size of buffer

6995

*

6996

* routine to create an XML buffer.

6997

* returns the new structure.

6998

*/

6999

xmlBufferPtr

7000

xmlBufferCreateSize(size_t size) {

7001

xmlBufferPtr ret;

7002

7003

ret = (xmlBufferPtr) xmlMalloc(sizeof(xmlBuffer));

7004

if (ret == NULL) {

7005

xmlTreeErrMemory("creating buffer");

7006

return(NULL);

7007

}

7008

ret->use = 0;

7009

ret->alloc = xmlBufferAllocScheme;

7010

ret->size = (size ? size+2 : 0); /* +1 for ending null */

7011

if (ret->size){

7012

ret->content = (xmlChar *) xmlMallocAtomic(ret->size * sizeof(xmlChar));

7013

if (ret->content == NULL) {

7014

xmlTreeErrMemory("creating buffer");

7015

xmlFree(ret);

7016

return(NULL);

7017

}

7018

ret->content[0] = 0;

7019

} else

7020

ret->content = NULL;

7021

ret->contentIO = NULL;

7022

return(ret);

7023

}

7024

7025

/**

7026

* xmlBufferDetach:

7027

* @buf: the buffer

7028

*

7029

* Remove the string contained in a buffer and gie it back to the

7030

* caller. The buffer is reset to an empty content.

7031

* This doesn't work with immutable buffers as they can't be reset.

7032

*

7033

* Returns the previous string contained by the buffer.

7034

*/

7035

xmlChar *

7036

xmlBufferDetach(xmlBufferPtr buf) {

7037

xmlChar *ret;

7038

7039

if (buf == NULL)

7040

return(NULL);

7041

if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE)

7042

return(NULL);

7043

7044

ret = buf->content;

7045

buf->content = NULL;

7046

buf->size = 0;

7047

buf->use = 0;

7048

7049

return ret;

7050

}

7051

7052

7053

/**

7054

* xmlBufferCreateStatic:

7055

* @mem: the memory area

7056

* @size: the size in byte

7057

*

7058

* routine to create an XML buffer from an immutable memory area.

7059

* The area won't be modified nor copied, and is expected to be

7060

* present until the end of the buffer lifetime.

7061

*

7062

* returns the new structure.

7063

*/

7064

xmlBufferPtr

7065

xmlBufferCreateStatic(void *mem, size_t size) {

7066

xmlBufferPtr ret;

7067

7068

if ((mem == NULL) || (size == 0))

7069

return(NULL);

7070

7071

ret = (xmlBufferPtr) xmlMalloc(sizeof(xmlBuffer));

7072

if (ret == NULL) {

7073

xmlTreeErrMemory("creating buffer");

7074

return(NULL);

7075

}

7076

ret->use = size;

7077

ret->size = size;

7078

ret->alloc = XML_BUFFER_ALLOC_IMMUTABLE;

7079

ret->content = (xmlChar *) mem;

7080

return(ret);

7081

}

7082

7083

/**

7084

* xmlBufferSetAllocationScheme:

7085

* @buf: the buffer to tune

7086

* @scheme: allocation scheme to use

7087

*

7088

* Sets the allocation scheme for this buffer

7089

*/

7090

void

7091

xmlBufferSetAllocationScheme(xmlBufferPtr buf,

7092

xmlBufferAllocationScheme scheme) {

7093

if (buf == NULL) {

7094

#ifdef DEBUG_BUFFER

7095

xmlGenericError(xmlGenericErrorContext,

7096

"xmlBufferSetAllocationScheme: buf == NULL\n");

7097

#endif

7098

return;

7099

}

7100

if ((buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) ||

7101

(buf->alloc == XML_BUFFER_ALLOC_IO)) return;

7102

if ((scheme == XML_BUFFER_ALLOC_DOUBLEIT) ||

7103

(scheme == XML_BUFFER_ALLOC_EXACT) ||

7104

(scheme == XML_BUFFER_ALLOC_HYBRID) ||

7105

(scheme == XML_BUFFER_ALLOC_IMMUTABLE))

7106

buf->alloc = scheme;

7107

}

7108

7109

/**

7110

* xmlBufferFree:

7111

* @buf: the buffer to free

7112

*

7113

* Frees an XML buffer. It frees both the content and the structure which

7114

* encapsulate it.

7115

*/

7116

void

7117

xmlBufferFree(xmlBufferPtr buf) {

7118

if (buf == NULL) {

7119

#ifdef DEBUG_BUFFER

7120

xmlGenericError(xmlGenericErrorContext,

7121

"xmlBufferFree: buf == NULL\n");

7122

#endif

7123

return;

7124

}

7125

7126

if ((buf->alloc == XML_BUFFER_ALLOC_IO) &&

7127

(buf->contentIO != NULL)) {

7128

xmlFree(buf->contentIO);

7129

} else if ((buf->content != NULL) &&

7130

(buf->alloc != XML_BUFFER_ALLOC_IMMUTABLE)) {

7131

xmlFree(buf->content);

7132

}

7133

xmlFree(buf);

7134

}

7135

7136

/**

7137

* xmlBufferEmpty:

7138

* @buf: the buffer

7139

*

7140

* empty a buffer.

7141

*/

7142

void

7143

xmlBufferEmpty(xmlBufferPtr buf) {

7144

if (buf == NULL) return;

7145

if (buf->content == NULL) return;

7146

buf->use = 0;

7147

if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) {

7148

buf->content = BAD_CAST "";

7149

} else if ((buf->alloc == XML_BUFFER_ALLOC_IO) &&

7150

(buf->contentIO != NULL)) {

7151

size_t start_buf = buf->content - buf->contentIO;

7152

7153

buf->size += start_buf;

7154

buf->content = buf->contentIO;

7155

buf->content[0] = 0;

7156

} else {

7157

buf->content[0] = 0;

7158

}

7159

}

7160

7161

/**

7162

* xmlBufferShrink:

7163

* @buf: the buffer to dump

7164

* @len: the number of xmlChar to remove

7165

*

7166

* Remove the beginning of an XML buffer.

7167

*

7168

* Returns the number of #xmlChar removed, or -1 in case of failure.

7169

*/

7170

int

7171

xmlBufferShrink(xmlBufferPtr buf, unsigned int len) {

7172

if (buf == NULL) return(-1);

7173

if (len == 0) return(0);

7174

if (len > buf->use) return(-1);

7175

7176

buf->use -= len;

7177

if ((buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) ||

7178

((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL))) {

7179

/*

7180

* we just move the content pointer, but also make sure

7181

* the perceived buffer size has shrinked accordingly

7182

*/

7183

buf->content += len;

7184

buf->size -= len;

7185

7186

/*

7187

* sometimes though it maybe be better to really shrink

7188

* on IO buffers

7189

*/

7190

if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {

7191

size_t start_buf = buf->content - buf->contentIO;

7192

if (start_buf >= buf->size) {

7193

memmove(buf->contentIO, &buf->content[0], buf->use);

7194

buf->content = buf->contentIO;

7195

buf->content[buf->use] = 0;

7196

buf->size += start_buf;

7197

}

7198

}

7199

} else {

7200

memmove(buf->content, &buf->content[len], buf->use);

7201

buf->content[buf->use] = 0;

7202

}

7203

return(len);

7204

}

7205

7206

/**

7207

* xmlBufferGrow:

7208

* @buf: the buffer

7209

* @len: the minimum free size to allocate

7210

*

7211

* Grow the available space of an XML buffer.

7212

*

7213

* Returns the new available space or -1 in case of error

7214

*/

7215

int

7216

xmlBufferGrow(xmlBufferPtr buf, unsigned int len) {

7217

int size;

7218

xmlChar *newbuf;

7219

7220

if (buf == NULL) return(-1);

7221

7222

if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return(0);

7223

if (len + buf->use < buf->size) return(0);

7224

7225

/*

7226

* Windows has a BIG problem on realloc timing, so we try to double

7227

* the buffer size (if that's enough) (bug 146697)

7228

* Apparently BSD too, and it's probably best for linux too

7229

* On an embedded system this may be something to change

7230

*/

7231

#if 1

7232

if (buf->size > len)

7233

size = buf->size * 2;

7234

else

7235

size = buf->use + len + 100;

7236

#else

7237

size = buf->use + len + 100;

7238

#endif

7239

7240

if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {

7241

size_t start_buf = buf->content - buf->contentIO;

7242

7243

newbuf = (xmlChar *) xmlRealloc(buf->contentIO, start_buf + size);

7244

if (newbuf == NULL) {

7245

xmlTreeErrMemory("growing buffer");

7246

return(-1);

7247

}

7248

buf->contentIO = newbuf;

7249

buf->content = newbuf + start_buf;

7250

} else {

7251

newbuf = (xmlChar *) xmlRealloc(buf->content, size);

7252

if (newbuf == NULL) {

7253

xmlTreeErrMemory("growing buffer");

7254

return(-1);

7255

}

7256

buf->content = newbuf;

7257

}

7258

buf->size = size;

7259

return(buf->size - buf->use);

7260

}

7261

7262

/**

7263

* xmlBufferDump:

7264

* @file: the file output

7265

* @buf: the buffer to dump

7266

*

7267

* Dumps an XML buffer to a FILE *.

7268

* Returns the number of #xmlChar written

7269

*/

7270

int

7271

xmlBufferDump(FILE *file, xmlBufferPtr buf) {

7272

int ret;

7273

7274

if (buf == NULL) {

7275

#ifdef DEBUG_BUFFER

7276

xmlGenericError(xmlGenericErrorContext,

7277

"xmlBufferDump: buf == NULL\n");

7278

#endif

7279

return(0);

7280

}

7281

if (buf->content == NULL) {

7282

#ifdef DEBUG_BUFFER

7283

xmlGenericError(xmlGenericErrorContext,

7284

"xmlBufferDump: buf->content == NULL\n");

7285

#endif

7286

return(0);

7287

}

7288

if (file == NULL)

7289

file = stdout;

7290

ret = fwrite(buf->content, sizeof(xmlChar), buf->use, file);

7291

return(ret);

7292

}

7293

7294

/**

7295

* xmlBufferContent:

7296

* @buf: the buffer

7297

*

7298

* Function to extract the content of a buffer

7299

*

7300

* Returns the internal content

7301

*/

7302

7303

const xmlChar *

7304

xmlBufferContent(const xmlBufferPtr buf)

7305

{

7306

if(!buf)

7307

return NULL;

7308

7309

return buf->content;

7310

}

7311

7312

/**

7313

* xmlBufferLength:

7314

* @buf: the buffer

7315

*

7316

* Function to get the length of a buffer

7317

*

7318

* Returns the length of data in the internal content

7319

*/

7320

7321

int

7322

xmlBufferLength(const xmlBufferPtr buf)

7323

{

7324

if(!buf)

7325

return 0;

7326

7327

return buf->use;

7328

}

7329

7330

/**

7331

* xmlBufferResize:

7332

* @buf: the buffer to resize

7333

* @size: the desired size

7334

*

7335

* Resize a buffer to accommodate minimum size of @size.

7336

*

7337

* Returns 0 in case of problems, 1 otherwise

7338

*/

7339

int

7340

xmlBufferResize(xmlBufferPtr buf, unsigned int size)

7341

{

7342

unsigned int newSize;

7343

xmlChar* rebuf = NULL;

7344

size_t start_buf;

7345

7346

if (buf == NULL)

7347

return(0);

7348

7349

if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return(0);

7350

7351

/* Don't resize if we don't have to */

7352

if (size < buf->size)

7353

return 1;

7354

7355

/* figure out new size */

7356

switch (buf->alloc){

7357

case XML_BUFFER_ALLOC_IO:

7358

case XML_BUFFER_ALLOC_DOUBLEIT:

7359

/*take care of empty case*/

7360

newSize = (buf->size ? buf->size*2 : size + 10);

7361

while (size > newSize) {

7362

if (newSize > UINT_MAX / 2) {

7363

xmlTreeErrMemory("growing buffer");

7364

return 0;

7365

}

7366

newSize *= 2;

7367

}

7368

break;

7369

case XML_BUFFER_ALLOC_EXACT:

7370

newSize = size+10;

7371

break;

7372

case XML_BUFFER_ALLOC_HYBRID:

7373

if (buf->use < BASE_BUFFER_SIZE)

7374

newSize = size;

7375

else {

7376

newSize = buf->size * 2;

7377

while (size > newSize) {

7378

if (newSize > UINT_MAX / 2) {

7379

xmlTreeErrMemory("growing buffer");

7380

return 0;

7381

}

7382

newSize *= 2;

7383

}

7384

}

7385

break;

7386

7387

default:

7388

newSize = size+10;

7389

break;

7390

}

7391

7392

if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {

7393

start_buf = buf->content - buf->contentIO;

7394

7395

if (start_buf > newSize) {

7396

/* move data back to start */

7397

memmove(buf->contentIO, buf->content, buf->use);

7398

buf->content = buf->contentIO;

7399

buf->content[buf->use] = 0;

7400

buf->size += start_buf;

7401

} else {

7402

rebuf = (xmlChar *) xmlRealloc(buf->contentIO, start_buf + newSize);

7403

if (rebuf == NULL) {

7404

xmlTreeErrMemory("growing buffer");

7405

return 0;

7406

}

7407

buf->contentIO = rebuf;

7408

buf->content = rebuf + start_buf;

7409

}

7410

} else {

7411

if (buf->content == NULL) {

7412

rebuf = (xmlChar *) xmlMallocAtomic(newSize);

7413

} else if (buf->size - buf->use < 100) {

7414

rebuf = (xmlChar *) xmlRealloc(buf->content, newSize);

7415

} else {

7416

/*

7417

* if we are reallocating a buffer far from being full, it's

7418

* better to make a new allocation and copy only the used range

7419

* and free the old one.

7420

*/

7421

rebuf = (xmlChar *) xmlMallocAtomic(newSize);

7422

if (rebuf != NULL) {

7423

memcpy(rebuf, buf->content, buf->use);

7424

xmlFree(buf->content);

7425

rebuf[buf->use] = 0;

7426

}

7427

}

7428

if (rebuf == NULL) {

7429

xmlTreeErrMemory("growing buffer");

7430

return 0;

7431

}

7432

buf->content = rebuf;

7433

}

7434

buf->size = newSize;

7435

7436

return 1;

7437

}

7438

7439

/**

7440

* xmlBufferAdd:

7441

* @buf: the buffer to dump

7442

* @str: the #xmlChar string

7443

* @len: the number of #xmlChar to add

7444

*

7445

* Add a string range to an XML buffer. if len == -1, the length of

7446

* str is recomputed.

7447

*

7448

* Returns 0 successful, a positive error code number otherwise

7449

* and -1 in case of internal or API error.

7450

*/

7451

int

7452

xmlBufferAdd(xmlBufferPtr buf, const xmlChar *str, int len) {

7453

unsigned int needSize;

7454

7455

if ((str == NULL) || (buf == NULL)) {

7456

return -1;

7457

}

7458

if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;

7459

if (len < -1) {

7460

#ifdef DEBUG_BUFFER

7461

xmlGenericError(xmlGenericErrorContext,

7462

"xmlBufferAdd: len < 0\n");

7463

#endif

7464

return -1;

7465

}

7466

if (len == 0) return 0;

7467

7468

if (len < 0)

7469

len = xmlStrlen(str);

7470

7471

if (len < 0) return -1;

7472

if (len == 0) return 0;

7473

7474

needSize = buf->use + len + 2;

7475

if (needSize > buf->size){

7476

if (!xmlBufferResize(buf, needSize)){

7477

xmlTreeErrMemory("growing buffer");

7478

return XML_ERR_NO_MEMORY;

7479

}

7480

}

7481

7482

memmove(&buf->content[buf->use], str, len*sizeof(xmlChar));

7483

buf->use += len;

7484

buf->content[buf->use] = 0;

7485

return 0;

7486

}

7487

7488

/**

7489

* xmlBufferAddHead:

7490

* @buf: the buffer

7491

* @str: the #xmlChar string

7492

* @len: the number of #xmlChar to add

7493

*

7494

* Add a string range to the beginning of an XML buffer.

7495

* if len == -1, the length of @str is recomputed.

7496

*

7497

* Returns 0 successful, a positive error code number otherwise

7498

* and -1 in case of internal or API error.

7499

*/

7500

int

7501

xmlBufferAddHead(xmlBufferPtr buf, const xmlChar *str, int len) {

7502

unsigned int needSize;

7503

7504

if (buf == NULL)

7505

return(-1);

7506

if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;

7507

if (str == NULL) {

7508

#ifdef DEBUG_BUFFER

7509

xmlGenericError(xmlGenericErrorContext,

7510

"xmlBufferAddHead: str == NULL\n");

7511

#endif

7512

return -1;

7513

}

7514

if (len < -1) {

7515

#ifdef DEBUG_BUFFER

7516

xmlGenericError(xmlGenericErrorContext,

7517

"xmlBufferAddHead: len < 0\n");

7518

#endif

7519

return -1;

7520

}

7521

if (len == 0) return 0;

7522

7523

if (len < 0)

7524

len = xmlStrlen(str);

7525

7526

if (len <= 0) return -1;

7527

7528

if ((buf->alloc == XML_BUFFER_ALLOC_IO) && (buf->contentIO != NULL)) {

7529

size_t start_buf = buf->content - buf->contentIO;

7530

7531

if (start_buf > (unsigned int) len) {

7532

/*

7533

* We can add it in the space previously shrinked

7534

*/

7535

buf->content -= len;

7536

memmove(&buf->content[0], str, len);

7537

buf->use += len;

7538

buf->size += len;

7539

return(0);

7540

}

7541

}

7542

needSize = buf->use + len + 2;

7543

if (needSize > buf->size){

7544

if (!xmlBufferResize(buf, needSize)){

7545

xmlTreeErrMemory("growing buffer");

7546

return XML_ERR_NO_MEMORY;

7547

}

7548

}

7549

7550

memmove(&buf->content[len], &buf->content[0], buf->use);

7551

memmove(&buf->content[0], str, len);

7552

buf->use += len;

7553

buf->content[buf->use] = 0;

7554

return 0;

7555

}

7556

7557

/**

7558

* xmlBufferCat:

7559

* @buf: the buffer to add to

7560

* @str: the #xmlChar string

7561

*

7562

* Append a zero terminated string to an XML buffer.

7563

*

7564

* Returns 0 successful, a positive error code number otherwise

7565

* and -1 in case of internal or API error.

7566

*/

7567

int

7568

xmlBufferCat(xmlBufferPtr buf, const xmlChar *str) {

7569

if (buf == NULL)

7570

return(-1);

7571

if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;

7572

if (str == NULL) return -1;

7573

return xmlBufferAdd(buf, str, -1);

7574

}

7575

7576

/**

7577

* xmlBufferCCat:

7578

* @buf: the buffer to dump

7579

* @str: the C char string

7580

*

7581

* Append a zero terminated C string to an XML buffer.

7582

*

7583

* Returns 0 successful, a positive error code number otherwise

7584

* and -1 in case of internal or API error.

7585

*/

7586

int

7587

xmlBufferCCat(xmlBufferPtr buf, const char *str) {

7588

const char *cur;

7589

7590

if (buf == NULL)

7591

return(-1);

7592

if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return -1;

7593

if (str == NULL) {

7594

#ifdef DEBUG_BUFFER

7595

xmlGenericError(xmlGenericErrorContext,

7596

"xmlBufferCCat: str == NULL\n");

7597

#endif

7598

return -1;

7599

}

7600

for (cur = str;*cur != 0;cur++) {

7601

if (buf->use + 10 >= buf->size) {

7602

if (!xmlBufferResize(buf, buf->use+10)){

7603

xmlTreeErrMemory("growing buffer");

7604

return XML_ERR_NO_MEMORY;

7605

}

7606

}

7607

buf->content[buf->use++] = *cur;

7608

}

7609

buf->content[buf->use] = 0;

7610

return 0;

7611

}

7612

7613

/**

7614

* xmlBufferWriteCHAR:

7615

* @buf: the XML buffer

7616

* @string: the string to add

7617

*

7618

* routine which manages and grows an output buffer. This one adds

7619

* xmlChars at the end of the buffer.

7620

*/

7621

void

7622

xmlBufferWriteCHAR(xmlBufferPtr buf, const xmlChar *string) {

7623

if (buf == NULL)

7624

return;

7625

if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;

7626

xmlBufferCat(buf, string);

7627

}

7628

7629

/**

7630

* xmlBufferWriteChar:

7631

* @buf: the XML buffer output

7632

* @string: the string to add

7633

*

7634

* routine which manage and grows an output buffer. This one add

7635

* C chars at the end of the array.

7636

*/

7637

void

7638

xmlBufferWriteChar(xmlBufferPtr buf, const char *string) {

7639

if (buf == NULL)

7640

return;

7641

if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;

7642

xmlBufferCCat(buf, string);

7643

}

7644

7645

7646

/**

7647

* xmlBufferWriteQuotedString:

7648

* @buf: the XML buffer output

7649

* @string: the string to add

7650

*

7651

* routine which manage and grows an output buffer. This one writes

7652

* a quoted or double quoted #xmlChar string, checking first if it holds

7653

* quote or double-quotes internally

7654

*/

7655

void

7656

xmlBufferWriteQuotedString(xmlBufferPtr buf, const xmlChar *string) {

7657

const xmlChar *cur, *base;

7658

if (buf == NULL)

7659

return;

7660

if (buf->alloc == XML_BUFFER_ALLOC_IMMUTABLE) return;

7661

if (xmlStrchr(string, '\"')) {

7662

if (xmlStrchr(string, '\'')) {

7663

#ifdef DEBUG_BUFFER

7664

xmlGenericError(xmlGenericErrorContext,

7665

"xmlBufferWriteQuotedString: string contains quote and double-quotes !\n");

7666

#endif

7667

xmlBufferCCat(buf, "\"");

7668

base = cur = string;

7669

while(*cur != 0){

7670

if(*cur == '"'){

7671

if (base != cur)

7672

xmlBufferAdd(buf, base, cur - base);

7673

xmlBufferAdd(buf, BAD_CAST """, 6);

7674

cur++;

7675

base = cur;

7676

}

7677

else {

7678

cur++;

7679

}

7680

}

7681

if (base != cur)

7682

xmlBufferAdd(buf, base, cur - base);

7683

xmlBufferCCat(buf, "\"");

7684

}

7685

else{

7686

xmlBufferCCat(buf, "\'");

7687

xmlBufferCat(buf, string);

7688

xmlBufferCCat(buf, "\'");

7689

}

7690

} else {

7691

xmlBufferCCat(buf, "\"");

7692

xmlBufferCat(buf, string);

7693

xmlBufferCCat(buf, "\"");

7694

}

7695

}

7696

7697

7698

/**

7699

* xmlGetDocCompressMode:

7700

* @doc: the document

7701

*

7702

* get the compression ratio for a document, ZLIB based

7703

* Returns 0 (uncompressed) to 9 (max compression)

7704

*/

7705

int

7706

xmlGetDocCompressMode (xmlDocPtr doc) {

7707

if (doc == NULL) return(-1);

7708

return(doc->compression);

7709

}

7710

7711

/**

7712

* xmlSetDocCompressMode:

7713

* @doc: the document

7714

* @mode: the compression ratio

7715

*

7716

* set the compression ratio for a document, ZLIB based

7717

* Correct values: 0 (uncompressed) to 9 (max compression)

7718

*/

7719

void

7720

xmlSetDocCompressMode (xmlDocPtr doc, int mode) {

7721

if (doc == NULL) return;

7722

if (mode < 0) doc->compression = 0;

7723

else if (mode > 9) doc->compression = 9;

7724

else doc->compression = mode;

7725

}

7726

7727

/**

7728

* xmlGetCompressMode:

7729

*

7730

* get the default compression mode used, ZLIB based.

7731

* Returns 0 (uncompressed) to 9 (max compression)

7732

*/

7733

int

7734

xmlGetCompressMode(void)

7735

{

7736

return (xmlCompressMode);

7737

}

7738

7739

/**

7740

* xmlSetCompressMode:

7741

* @mode: the compression ratio

7742

*

7743

* set the default compression mode used, ZLIB based

7744

* Correct values: 0 (uncompressed) to 9 (max compression)

7745

*/

7746

void

7747

xmlSetCompressMode(int mode) {

7748

if (mode < 0) xmlCompressMode = 0;

7749

else if (mode > 9) xmlCompressMode = 9;

7750

else xmlCompressMode = mode;

7751

}

7752

7753

#define XML_TREE_NSMAP_PARENT -1

7754

#define XML_TREE_NSMAP_XML -2

7755

#define XML_TREE_NSMAP_DOC -3

7756

#define XML_TREE_NSMAP_CUSTOM -4

7757

7758

typedef struct xmlNsMapItem *xmlNsMapItemPtr;

7759

struct xmlNsMapItem {

7760

xmlNsMapItemPtr next;

7761

xmlNsMapItemPtr prev;

7762

xmlNsPtr oldNs; /* old ns decl reference */

7763

xmlNsPtr newNs; /* new ns decl reference */

7764

int shadowDepth; /* Shadowed at this depth */

7765

/*

7766

* depth:

7767

* >= 0 == @node's ns-decls

7768

* -1 == @parent's ns-decls

7769

* -2 == the doc->oldNs XML ns-decl

7770

* -3 == the doc->oldNs storage ns-decls

7771

* -4 == ns-decls provided via custom ns-handling

7772

*/

7773

int depth;

7774

};

7775

7776

typedef struct xmlNsMap *xmlNsMapPtr;

7777

struct xmlNsMap {

7778

xmlNsMapItemPtr first;

7779

xmlNsMapItemPtr last;

7780

xmlNsMapItemPtr pool;

7781

};

7782

7783

#define XML_NSMAP_NOTEMPTY(m) (((m) != NULL) && ((m)->first != NULL))

7784

#define XML_NSMAP_FOREACH(m, i) for (i = (m)->first; i != NULL; i = (i)->next)

7785

#define XML_NSMAP_POP(m, i) \

7786

i = (m)->last; \

7787

(m)->last = (i)->prev; \

7788

if ((m)->last == NULL) \

7789

(m)->first = NULL; \

7790

else \

7791

(m)->last->next = NULL; \

7792

(i)->next = (m)->pool; \

7793

(m)->pool = i;

7794

7795

/*

7796

* xmlDOMWrapNsMapFree:

7797

* @map: the ns-map

7798

*

7799

* Frees the ns-map

7800

*/

7801

static void

7802

xmlDOMWrapNsMapFree(xmlNsMapPtr nsmap)

7803

{

7804

xmlNsMapItemPtr cur, tmp;

7805

7806

if (nsmap == NULL)

7807

return;

7808

cur = nsmap->pool;

7809

while (cur != NULL) {

7810

tmp = cur;

7811

cur = cur->next;

7812

xmlFree(tmp);

7813

}

7814

cur = nsmap->first;

7815

while (cur != NULL) {

7816

tmp = cur;

7817

cur = cur->next;

7818

xmlFree(tmp);

7819

}

7820

xmlFree(nsmap);

7821

}

7822

7823

/*

7824

* xmlDOMWrapNsMapAddItem:

7825

* @map: the ns-map

7826

* @oldNs: the old ns-struct

7827

* @newNs: the new ns-struct

7828

* @depth: depth and ns-kind information

7829

*

7830

* Adds an ns-mapping item.

7831

*/

7832

static xmlNsMapItemPtr

7833

xmlDOMWrapNsMapAddItem(xmlNsMapPtr *nsmap, int position,

7834

xmlNsPtr oldNs, xmlNsPtr newNs, int depth)

7835

{

7836

xmlNsMapItemPtr ret;

7837

xmlNsMapPtr map;

7838

7839

if (nsmap == NULL)

7840

return(NULL);

7841

if ((position != -1) && (position != 0))

7842

return(NULL);

7843

map = *nsmap;

7844

7845

if (map == NULL) {

7846

/*

7847

* Create the ns-map.

7848

*/

7849

map = (xmlNsMapPtr) xmlMalloc(sizeof(struct xmlNsMap));

7850

if (map == NULL) {

7851

xmlTreeErrMemory("allocating namespace map");

7852

return (NULL);

7853

}

7854

memset(map, 0, sizeof(struct xmlNsMap));

7855

*nsmap = map;

7856

}

7857

7858

if (map->pool != NULL) {

7859

/*

7860

* Reuse an item from the pool.

7861

*/

7862

ret = map->pool;

7863

map->pool = ret->next;

7864

memset(ret, 0, sizeof(struct xmlNsMapItem));

7865

} else {

7866

/*

7867

* Create a new item.

7868

*/

7869

ret = (xmlNsMapItemPtr) xmlMalloc(sizeof(struct xmlNsMapItem));

7870

if (ret == NULL) {

7871

xmlTreeErrMemory("allocating namespace map item");

7872

return (NULL);

7873

}

7874

memset(ret, 0, sizeof(struct xmlNsMapItem));

7875

}

7876

7877

if (map->first == NULL) {

7878

/*

7879

* First ever.

7880

*/

7881

map->first = ret;

7882

map->last = ret;

7883

} else if (position == -1) {

7884

/*

7885

* Append.

7886

*/

7887

ret->prev = map->last;

7888

map->last->next = ret;

7889

map->last = ret;

7890

} else if (position == 0) {

7891

/*

7892

* Set on first position.

7893

*/

7894

map->first->prev = ret;

7895

ret->next = map->first;

7896

map->first = ret;

7897

} else

7898

return(NULL);

7899

7900

ret->oldNs = oldNs;

7901

ret->newNs = newNs;

7902

ret->shadowDepth = -1;

7903

ret->depth = depth;

7904

return (ret);

7905

}

7906

7907

/*

7908

* xmlDOMWrapStoreNs:

7909

* @doc: the doc

7910

* @nsName: the namespace name

7911

* @prefix: the prefix

7912

*

7913

* Creates or reuses an xmlNs struct on doc->oldNs with

7914

* the given prefix and namespace name.

7915

*

7916

* Returns the aquired ns struct or NULL in case of an API

7917

* or internal error.

7918

*/

7919

static xmlNsPtr

7920

xmlDOMWrapStoreNs(xmlDocPtr doc,

7921

const xmlChar *nsName,

7922

const xmlChar *prefix)

7923

{

7924

xmlNsPtr ns;

7925

7926

if (doc == NULL)

7927

return (NULL);

7928

ns = xmlTreeEnsureXMLDecl(doc);

7929

if (ns == NULL)

7930

return (NULL);

7931

if (ns->next != NULL) {

7932

/* Reuse. */

7933

ns = ns->next;

7934

while (ns != NULL) {

7935

if (((ns->prefix == prefix) ||

7936

xmlStrEqual(ns->prefix, prefix)) &&

7937

xmlStrEqual(ns->href, nsName)) {

7938

return (ns);

7939

}

7940

if (ns->next == NULL)

7941

break;

7942

ns = ns->next;

7943

}

7944

}

7945

/* Create. */

7946

if (ns != NULL) {

7947

ns->next = xmlNewNs(NULL, nsName, prefix);

7948

return (ns->next);

7949

}

7950

return(NULL);

7951

}

7952

7953

/*

7954

* xmlDOMWrapNewCtxt:

7955

*

7956

* Allocates and initializes a new DOM-wrapper context.

7957

*

7958

* Returns the xmlDOMWrapCtxtPtr or NULL in case of an internal errror.

7959

*/

7960

xmlDOMWrapCtxtPtr

7961

xmlDOMWrapNewCtxt(void)

7962

{

7963

xmlDOMWrapCtxtPtr ret;

7964

7965

ret = xmlMalloc(sizeof(xmlDOMWrapCtxt));

7966

if (ret == NULL) {

7967

xmlTreeErrMemory("allocating DOM-wrapper context");

7968

return (NULL);

7969

}

7970

memset(ret, 0, sizeof(xmlDOMWrapCtxt));

7971

return (ret);

7972

}

7973

7974

/*

7975

* xmlDOMWrapFreeCtxt:

7976

* @ctxt: the DOM-wrapper context

7977

*

7978

* Frees the DOM-wrapper context.

7979

*/

7980

void

7981

xmlDOMWrapFreeCtxt(xmlDOMWrapCtxtPtr ctxt)

7982

{

7983

if (ctxt == NULL)

7984

return;

7985

if (ctxt->namespaceMap != NULL)

7986

xmlDOMWrapNsMapFree((xmlNsMapPtr) ctxt->namespaceMap);

7987

/*

7988

* TODO: Store the namespace map in the context.

7989

*/

7990

xmlFree(ctxt);

7991

}

7992

7993

/*

7994

* xmlTreeLookupNsListByPrefix:

7995

* @nsList: a list of ns-structs

7996

* @prefix: the searched prefix

7997

*

7998

* Searches for a ns-decl with the given prefix in @nsList.

7999

*

8000

* Returns the ns-decl if found, NULL if not found and on

8001

* API errors.

8002

*/

8003

static xmlNsPtr

8004

xmlTreeNSListLookupByPrefix(xmlNsPtr nsList, const xmlChar *prefix)

8005

{

8006

if (nsList == NULL)

8007

return (NULL);

8008

{

8009

xmlNsPtr ns;

8010

ns = nsList;

8011

do {

8012

if ((prefix == ns->prefix) ||

8013

xmlStrEqual(prefix, ns->prefix)) {

8014

return (ns);

8015

}

8016

ns = ns->next;

8017

} while (ns != NULL);

8018

}

8019

return (NULL);

8020

}

8021

8022

/*

8023

*

8024

* xmlDOMWrapNSNormGatherInScopeNs:

8025

* @map: the namespace map

8026

* @node: the node to start with

8027

*

8028

* Puts in-scope namespaces into the ns-map.

8029

*

8030

* Returns 0 on success, -1 on API or internal errors.

8031

*/

8032

static int

8033

xmlDOMWrapNSNormGatherInScopeNs(xmlNsMapPtr *map,

8034

xmlNodePtr node)

8035

{

8036

xmlNodePtr cur;

8037

xmlNsPtr ns;

8038

xmlNsMapItemPtr mi;

8039

int shadowed;

8040

8041

if ((map == NULL) || (*map != NULL))

8042

return (-1);

8043

if ((node == NULL) || (node->type == XML_NAMESPACE_DECL))

8044

return (-1);

8045

/*

8046

* Get in-scope ns-decls of @parent.

8047

*/

8048

cur = node;

8049

while ((cur != NULL) && (cur != (xmlNodePtr) cur->doc)) {

8050

if (cur->type == XML_ELEMENT_NODE) {

8051

if (cur->nsDef != NULL) {

8052

ns = cur->nsDef;

8053

do {

8054

shadowed = 0;

8055

if (XML_NSMAP_NOTEMPTY(*map)) {

8056

/*

8057

* Skip shadowed prefixes.

8058

*/

8059

XML_NSMAP_FOREACH(*map, mi) {

8060

if ((ns->prefix == mi->newNs->prefix) ||

8061

xmlStrEqual(ns->prefix, mi->newNs->prefix)) {

8062

shadowed = 1;

8063

break;

8064

}

8065

}

8066

}

8067

/*

8068

* Insert mapping.

8069

*/

8070

mi = xmlDOMWrapNsMapAddItem(map, 0, NULL,

8071

ns, XML_TREE_NSMAP_PARENT);

8072

if (mi == NULL)

8073

return (-1);

8074

if (shadowed)

8075

mi->shadowDepth = 0;

8076

ns = ns->next;

8077

} while (ns != NULL);

8078

}

8079

}

8080

cur = cur->parent;

8081

}

8082

return (0);

8083

}

8084

8085

/*

8086

* XML_TREE_ADOPT_STR: If we have a dest-dict, put @str in the dict;

8087

* otherwise copy it, when it was in the source-dict.

8088

*/

8089

#define XML_TREE_ADOPT_STR(str) \

8090

if (adoptStr && (str != NULL)) { \

8091

if (destDoc->dict) { \

8092

const xmlChar *old = str; \

8093

str = xmlDictLookup(destDoc->dict, str, -1); \

8094

if ((sourceDoc == NULL) || (sourceDoc->dict == NULL) || \

8095

(!xmlDictOwns(sourceDoc->dict, old))) \

8096

xmlFree((char *)old); \

8097

} else if ((sourceDoc) && (sourceDoc->dict) && \

8098

xmlDictOwns(sourceDoc->dict, str)) { \

8099

str = BAD_CAST xmlStrdup(str); \

8100

} \

8101

}

8102

8103

/*

8104

* XML_TREE_ADOPT_STR_2: If @str was in the source-dict, then

8105

* put it in dest-dict or copy it.

8106

*/

8107

#define XML_TREE_ADOPT_STR_2(str) \

8108

if (adoptStr && (str != NULL) && (sourceDoc != NULL) && \

8109

(sourceDoc->dict != NULL) && \

8110

xmlDictOwns(sourceDoc->dict, cur->content)) { \

8111

if (destDoc->dict) \

8112

cur->content = (xmlChar *) \

8113

xmlDictLookup(destDoc->dict, cur->content, -1); \

8114

else \

8115

cur->content = xmlStrdup(BAD_CAST cur->content); \

8116

}

8117

8118

/*

8119

* xmlDOMWrapNSNormAddNsMapItem2:

8120

*

8121

* For internal use. Adds a ns-decl mapping.

8122

*

8123

* Returns 0 on success, -1 on internal errors.

8124

*/

8125

static int

8126

xmlDOMWrapNSNormAddNsMapItem2(xmlNsPtr **list, int *size, int *number,

8127

xmlNsPtr oldNs, xmlNsPtr newNs)

8128

{

8129

if (*list == NULL) {

8130

*list = (xmlNsPtr *) xmlMalloc(6 * sizeof(xmlNsPtr));

8131

if (*list == NULL) {

8132

xmlTreeErrMemory("alloc ns map item");

8133

return(-1);

8134

}

8135

*size = 3;

8136

*number = 0;

8137

} else if ((*number) >= (*size)) {

8138

*size *= 2;

8139

*list = (xmlNsPtr *) xmlRealloc(*list,

8140

(*size) * 2 * sizeof(xmlNsPtr));

8141

if (*list == NULL) {

8142

xmlTreeErrMemory("realloc ns map item");

8143

return(-1);

8144

}

8145

}

8146

(*list)[2 * (*number)] = oldNs;

8147

(*list)[2 * (*number) +1] = newNs;

8148

(*number)++;

8149

return (0);

8150

}

8151

8152

/*

8153

* xmlDOMWrapRemoveNode:

8154

* @ctxt: a DOM wrapper context

8155

* @doc: the doc

8156

* @node: the node to be removed.

8157

* @options: set of options, unused at the moment

8158

*

8159

* Unlinks the given node from its owner.

8160

* This will substitute ns-references to node->nsDef for

8161

* ns-references to doc->oldNs, thus ensuring the removed

8162

* branch to be autark wrt ns-references.

8163

*

8164

* NOTE: This function was not intensively tested.

8165

*

8166

* Returns 0 on success, 1 if the node is not supported,

8167

* -1 on API and internal errors.

8168

*/

8169

int

8170

xmlDOMWrapRemoveNode(xmlDOMWrapCtxtPtr ctxt, xmlDocPtr doc,

8171

xmlNodePtr node, int options ATTRIBUTE_UNUSED)

8172

{

8173

xmlNsPtr *list = NULL;

8174

int sizeList, nbList, i, j;

8175

xmlNsPtr ns;

8176

8177

if ((node == NULL) || (doc == NULL) || (node->doc != doc))

8178

return (-1);

8179

8180

/* TODO: 0 or -1 ? */

8181

if (node->parent == NULL)

8182

return (0);

8183

8184

switch (node->type) {

8185

case XML_TEXT_NODE:

8186

case XML_CDATA_SECTION_NODE:

8187

case XML_ENTITY_REF_NODE:

8188

case XML_PI_NODE:

8189

case XML_COMMENT_NODE:

8190

xmlUnlinkNode(node);

8191

return (0);

8192

case XML_ELEMENT_NODE:

8193

case XML_ATTRIBUTE_NODE:

8194

break;

8195

default:

8196

return (1);

8197

}

8198

xmlUnlinkNode(node);

8199

/*

8200

* Save out-of-scope ns-references in doc->oldNs.

8201

*/

8202

do {

8203

switch (node->type) {

8204

case XML_ELEMENT_NODE:

8205

if ((ctxt == NULL) && (node->nsDef != NULL)) {

8206

ns = node->nsDef;

8207

do {

8208

if (xmlDOMWrapNSNormAddNsMapItem2(&list, &sizeList,

8209

&nbList, ns, ns) == -1)

8210

goto internal_error;

8211

ns = ns->next;

8212

} while (ns != NULL);

8213

}

8214

/* No break on purpose. */

8215

case XML_ATTRIBUTE_NODE:

8216

if (node->ns != NULL) {

8217

/*

8218

* Find a mapping.

8219

*/

8220

if (list != NULL) {

8221

for (i = 0, j = 0; i < nbList; i++, j += 2) {

8222

if (node->ns == list[j]) {

8223

node->ns = list[++j];

8224

goto next_node;

8225

}

8226

}

8227

}

8228

ns = NULL;

8229

if (ctxt != NULL) {

8230

/*

8231

* User defined.

8232

*/

8233

} else {

8234

/*

8235

* Add to doc's oldNs.

8236

*/

8237

ns = xmlDOMWrapStoreNs(doc, node->ns->href,

8238

node->ns->prefix);

8239

if (ns == NULL)

8240

goto internal_error;

8241

}

8242

if (ns != NULL) {

8243

/*

8244

* Add mapping.

8245

*/

8246

if (xmlDOMWrapNSNormAddNsMapItem2(&list, &sizeList,

8247

&nbList, node->ns, ns) == -1)

8248

goto internal_error;

8249

}

8250

node->ns = ns;

8251

}

8252

if ((node->type == XML_ELEMENT_NODE) &&

8253

(node->properties != NULL)) {

8254

node = (xmlNodePtr) node->properties;

8255

continue;

8256

}

8257

break;

8258

default:

8259

goto next_sibling;

8260

}

8261

next_node:

8262

if ((node->type == XML_ELEMENT_NODE) &&

8263

(node->children != NULL)) {

8264

node = node->children;

8265

continue;

8266

}

8267

next_sibling:

8268

if (node == NULL)

8269

break;

8270

if (node->next != NULL)

8271

node = node->next;

8272

else {

8273

node = node->parent;

8274

goto next_sibling;

8275

}

8276

} while (node != NULL);

8277

8278

if (list != NULL)

8279

xmlFree(list);

8280

return (0);

8281

8282

internal_error:

8283

if (list != NULL)

8284

xmlFree(list);

8285

return (-1);

8286

}

8287

8288

/*

8289

* xmlSearchNsByNamespaceStrict:

8290

* @doc: the document

8291

* @node: the start node

8292

* @nsName: the searched namespace name

8293

* @retNs: the resulting ns-decl

8294

* @prefixed: if the found ns-decl must have a prefix (for attributes)

8295

*

8296

* Dynamically searches for a ns-declaration which matches

8297

* the given @nsName in the ancestor-or-self axis of @node.

8298

*

8299

* Returns 1 if a ns-decl was found, 0 if not and -1 on API

8300

* and internal errors.

8301

*/

8302

static int

8303

xmlSearchNsByNamespaceStrict(xmlDocPtr doc, xmlNodePtr node,

8304

const xmlChar* nsName,

8305

xmlNsPtr *retNs, int prefixed)

8306

{

8307

xmlNodePtr cur, prev = NULL, out = NULL;

8308

xmlNsPtr ns, prevns;

8309

8310

if ((doc == NULL) || (nsName == NULL) || (retNs == NULL))

8311

return (-1);

8312

if ((node == NULL) || (node->type == XML_NAMESPACE_DECL))

8313

return(-1);

8314

8315

*retNs = NULL;

8316

if (xmlStrEqual(nsName, XML_XML_NAMESPACE)) {

8317

*retNs = xmlTreeEnsureXMLDecl(doc);

8318

if (*retNs == NULL)

8319

return (-1);

8320

return (1);

8321

}

8322

cur = node;

8323

do {

8324

if (cur->type == XML_ELEMENT_NODE) {

8325

if (cur->nsDef != NULL) {

8326

for (ns = cur->nsDef; ns != NULL; ns = ns->next) {

8327

if (prefixed && (ns->prefix == NULL))

8328

continue;

8329

if (prev != NULL) {

8330

/*

8331

* Check the last level of ns-decls for a

8332

* shadowing prefix.

8333

*/

8334

prevns = prev->nsDef;

8335

do {

8336

if ((prevns->prefix == ns->prefix) ||

8337

((prevns->prefix != NULL) &&

8338

(ns->prefix != NULL) &&

8339

xmlStrEqual(prevns->prefix, ns->prefix))) {

8340

/*

8341

* Shadowed.

8342

*/

8343

break;

8344

}

8345

prevns = prevns->next;

8346

} while (prevns != NULL);

8347

if (prevns != NULL)

8348

continue;

8349

}

8350

/*

8351

* Ns-name comparison.

8352

*/

8353

if ((nsName == ns->href) ||

8354

xmlStrEqual(nsName, ns->href)) {

8355

/*

8356

* At this point the prefix can only be shadowed,

8357

* if we are the the (at least) 3rd level of

8358

* ns-decls.

8359

*/

8360

if (out) {

8361

int ret;

8362

8363

ret = xmlNsInScope(doc, node, prev, ns->prefix);

8364

if (ret < 0)

8365

return (-1);

8366

/*

8367

* TODO: Should we try to find a matching ns-name

8368

* only once? This here keeps on searching.

8369

* I think we should try further since, there might

8370

* be an other matching ns-decl with an unshadowed

8371

* prefix.

8372

*/

8373

if (! ret)

8374

continue;

8375

}

8376

*retNs = ns;

8377

return (1);

8378

}

8379

}

8380

out = prev;

8381

prev = cur;

8382

}

8383

} else if ((cur->type == XML_ENTITY_NODE) ||

8384

(cur->type == XML_ENTITY_DECL))

8385

return (0);

8386

cur = cur->parent;

8387

} while ((cur != NULL) && (cur->doc != (xmlDocPtr) cur));

8388

return (0);

8389

}

8390

8391

/*

8392

* xmlSearchNsByPrefixStrict:

8393

* @doc: the document

8394

* @node: the start node

8395

* @prefix: the searched namespace prefix

8396

* @retNs: the resulting ns-decl

8397

*

8398

* Dynamically searches for a ns-declaration which matches

8399

* the given @nsName in the ancestor-or-self axis of @node.

8400

*

8401

* Returns 1 if a ns-decl was found, 0 if not and -1 on API

8402

* and internal errors.

8403

*/

8404

static int

8405

xmlSearchNsByPrefixStrict(xmlDocPtr doc, xmlNodePtr node,

8406

const xmlChar* prefix,

8407

xmlNsPtr *retNs)

8408

{

8409

xmlNodePtr cur;

8410

xmlNsPtr ns;

8411

8412

if ((doc == NULL) || (node == NULL) || (node->type == XML_NAMESPACE_DECL))

8413

return(-1);

8414

8415

if (retNs)

8416

*retNs = NULL;

8417

if (IS_STR_XML(prefix)) {

8418

if (retNs) {

8419

*retNs = xmlTreeEnsureXMLDecl(doc);

8420

if (*retNs == NULL)

8421

return (-1);

8422

}

8423

return (1);

8424

}

8425

cur = node;

8426

do {

8427

if (cur->type == XML_ELEMENT_NODE) {

8428

if (cur->nsDef != NULL) {

8429

ns = cur->nsDef;

8430

do {

8431

if ((prefix == ns->prefix) ||

8432

xmlStrEqual(prefix, ns->prefix))

8433

{

8434

/*

8435

* Disabled namespaces, e.g. xmlns:abc="".

8436

*/

8437

if (ns->href == NULL)

8438

return(0);

8439

if (retNs)

8440

*retNs = ns;

8441

return (1);

8442

}

8443

ns = ns->next;

8444

} while (ns != NULL);

8445

}

8446

} else if ((cur->type == XML_ENTITY_NODE) ||

8447

(cur->type == XML_ENTITY_DECL))

8448

return (0);

8449

cur = cur->parent;

8450

} while ((cur != NULL) && (cur->doc != (xmlDocPtr) cur));

8451

return (0);

8452

}

8453

8454

/*

8455

* xmlDOMWrapNSNormDeclareNsForced:

8456

* @doc: the doc

8457

* @elem: the element-node to declare on

8458

* @nsName: the namespace-name of the ns-decl

8459

* @prefix: the preferred prefix of the ns-decl

8460

* @checkShadow: ensure that the new ns-decl doesn't shadow ancestor ns-decls

8461

*

8462

* Declares a new namespace on @elem. It tries to use the

8463

* given @prefix; if a ns-decl with the given prefix is already existent

8464

* on @elem, it will generate an other prefix.

8465

*

8466

* Returns 1 if a ns-decl was found, 0 if not and -1 on API

8467

* and internal errors.

8468

*/

8469

static xmlNsPtr

8470

xmlDOMWrapNSNormDeclareNsForced(xmlDocPtr doc,

8471

xmlNodePtr elem,

8472

const xmlChar *nsName,

8473

const xmlChar *prefix,

8474

int checkShadow)

8475

{

8476

8477

xmlNsPtr ret;

8478

char buf[50];

8479

const xmlChar *pref;

8480

int counter = 0;

8481

8482

if ((doc == NULL) || (elem == NULL) || (elem->type != XML_ELEMENT_NODE))

8483

return(NULL);

8484

/*

8485

* Create a ns-decl on @anchor.

8486

*/

8487

pref = prefix;

8488

while (1) {

8489

/*

8490

* Lookup whether the prefix is unused in elem's ns-decls.

8491

*/

8492

if ((elem->nsDef != NULL) &&

8493

(xmlTreeNSListLookupByPrefix(elem->nsDef, pref) != NULL))

8494

goto ns_next_prefix;

8495

if (checkShadow && elem->parent &&

8496

((xmlNodePtr) elem->parent->doc != elem->parent)) {

8497

/*

8498

* Does it shadow ancestor ns-decls?

8499

*/

8500

if (xmlSearchNsByPrefixStrict(doc, elem->parent, pref, NULL) == 1)

8501

goto ns_next_prefix;

8502

}

8503

ret = xmlNewNs(NULL, nsName, pref);

8504

if (ret == NULL)

8505

return (NULL);

8506

if (elem->nsDef == NULL)

8507

elem->nsDef = ret;

8508

else {

8509

xmlNsPtr ns2 = elem->nsDef;

8510

while (ns2->next != NULL)

8511

ns2 = ns2->next;

8512

ns2->next = ret;

8513

}

8514

return (ret);

8515

ns_next_prefix:

8516

counter++;

8517

if (counter > 1000)

8518

return (NULL);

8519

if (prefix == NULL) {

8520

snprintf((char *) buf, sizeof(buf),

8521

"ns_%d", counter);

8522

} else

8523

snprintf((char *) buf, sizeof(buf),

8524

"%.30s_%d", (char *)prefix, counter);

8525

pref = BAD_CAST buf;

8526

}

8527

}

8528

8529

/*

8530

* xmlDOMWrapNSNormAquireNormalizedNs:

8531

* @doc: the doc

8532

* @elem: the element-node to declare namespaces on

8533

* @ns: the ns-struct to use for the search

8534

* @retNs: the found/created ns-struct

8535

* @nsMap: the ns-map

8536

* @depth: the current tree depth

8537

* @ancestorsOnly: search in ancestor ns-decls only

8538

* @prefixed: if the searched ns-decl must have a prefix (for attributes)

8539

*

8540

* Searches for a matching ns-name in the ns-decls of @nsMap, if not

8541

* found it will either declare it on @elem, or store it in doc->oldNs.

8542

* If a new ns-decl needs to be declared on @elem, it tries to use the

8543

* @ns->prefix for it, if this prefix is already in use on @elem, it will

8544

* change the prefix or the new ns-decl.

8545

*

8546

* Returns 0 if succeeded, -1 otherwise and on API/internal errors.

8547

*/

8548

static int

8549

xmlDOMWrapNSNormAquireNormalizedNs(xmlDocPtr doc,

8550

xmlNodePtr elem,

8551

xmlNsPtr ns,

8552

xmlNsPtr *retNs,

8553

xmlNsMapPtr *nsMap,

8554

8555

int depth,

8556

int ancestorsOnly,

8557

int prefixed)

8558

{

8559

xmlNsMapItemPtr mi;

8560

8561

if ((doc == NULL) || (ns == NULL) || (retNs == NULL) ||

8562

(nsMap == NULL))

8563

return (-1);

8564

8565

*retNs = NULL;

8566

/*

8567

* Handle XML namespace.

8568

*/

8569

if (IS_STR_XML(ns->prefix)) {

8570

/*

8571

* Insert XML namespace mapping.

8572

*/

8573

*retNs = xmlTreeEnsureXMLDecl(doc);

8574

if (*retNs == NULL)

8575

return (-1);

8576

return (0);

8577

}

8578

/*

8579

* If the search should be done in ancestors only and no

8580

* @elem (the first ancestor) was specified, then skip the search.

8581

*/

8582

if ((XML_NSMAP_NOTEMPTY(*nsMap)) &&

8583

(! (ancestorsOnly && (elem == NULL))))

8584

{

8585

/*

8586

* Try to find an equal ns-name in in-scope ns-decls.

8587

*/

8588

XML_NSMAP_FOREACH(*nsMap, mi) {

8589

if ((mi->depth >= XML_TREE_NSMAP_PARENT) &&

8590

/*

8591

* ancestorsOnly: This should be turned on to gain speed,

8592

* if one knows that the branch itself was already

8593

* ns-wellformed and no stale references existed.

8594

* I.e. it searches in the ancestor axis only.

8595

*/

8596

((! ancestorsOnly) || (mi->depth == XML_TREE_NSMAP_PARENT)) &&

8597

/* Skip shadowed prefixes. */

8598

(mi->shadowDepth == -1) &&

8599

/* Skip xmlns="" or xmlns:foo="". */

8600

((mi->newNs->href != NULL) &&

8601

(mi->newNs->href[0] != 0)) &&

8602

/* Ensure a prefix if wanted. */

8603

((! prefixed) || (mi->newNs->prefix != NULL)) &&

8604

/* Equal ns name */

8605

((mi->newNs->href == ns->href) ||

8606

xmlStrEqual(mi->newNs->href, ns->href))) {

8607

/* Set the mapping. */

8608

mi->oldNs = ns;

8609

*retNs = mi->newNs;

8610

return (0);

8611

}

8612

}

8613

}

8614

/*

8615

* No luck, the namespace is out of scope or shadowed.

8616

*/

8617

if (elem == NULL) {

8618

xmlNsPtr tmpns;

8619

8620

/*

8621

* Store ns-decls in "oldNs" of the document-node.

8622

*/

8623

tmpns = xmlDOMWrapStoreNs(doc, ns->href, ns->prefix);

8624

if (tmpns == NULL)

8625

return (-1);

8626

/*

8627

* Insert mapping.

8628

*/

8629

if (xmlDOMWrapNsMapAddItem(nsMap, -1, ns,

8630

tmpns, XML_TREE_NSMAP_DOC) == NULL) {

8631

xmlFreeNs(tmpns);

8632

return (-1);

8633

}

8634

*retNs = tmpns;

8635

} else {

8636

xmlNsPtr tmpns;

8637

8638

tmpns = xmlDOMWrapNSNormDeclareNsForced(doc, elem, ns->href,

8639

ns->prefix, 0);

8640

if (tmpns == NULL)

8641

return (-1);

8642

8643

if (*nsMap != NULL) {

8644

/*

8645

* Does it shadow ancestor ns-decls?

8646

*/

8647

XML_NSMAP_FOREACH(*nsMap, mi) {

8648

if ((mi->depth < depth) &&

8649

(mi->shadowDepth == -1) &&

8650

((ns->prefix == mi->newNs->prefix) ||

8651

xmlStrEqual(ns->prefix, mi->newNs->prefix))) {

8652

/*

8653

* Shadows.

8654

*/

8655

mi->shadowDepth = depth;

8656

break;

8657

}

8658

}

8659

}

8660

if (xmlDOMWrapNsMapAddItem(nsMap, -1, ns, tmpns, depth) == NULL) {

8661

xmlFreeNs(tmpns);

8662

return (-1);

8663

}

8664

*retNs = tmpns;

8665

}

8666

return (0);

8667

}

8668

8669

typedef enum {

8670

XML_DOM_RECONNS_REMOVEREDUND = 1<<0

8671

} xmlDOMReconcileNSOptions;

8672

8673

/*

8674

* xmlDOMWrapReconcileNamespaces:

8675

* @ctxt: DOM wrapper context, unused at the moment

8676

* @elem: the element-node

8677

* @options: option flags

8678

*

8679

* Ensures that ns-references point to ns-decls hold on element-nodes.

8680

* Ensures that the tree is namespace wellformed by creating additional

8681

* ns-decls where needed. Note that, since prefixes of already existent

8682

* ns-decls can be shadowed by this process, it could break QNames in

8683

* attribute values or element content.

8684

*

8685

* NOTE: This function was not intensively tested.

8686

*

8687

* Returns 0 if succeeded, -1 otherwise and on API/internal errors.

8688

*/

8689

8690

int

8691

xmlDOMWrapReconcileNamespaces(xmlDOMWrapCtxtPtr ctxt ATTRIBUTE_UNUSED,

8692

xmlNodePtr elem,

8693

int options)

8694

{

8695

int depth = -1, adoptns = 0, parnsdone = 0;

8696

xmlNsPtr ns, prevns;

8697

xmlDocPtr doc;

8698

xmlNodePtr cur, curElem = NULL;

8699

xmlNsMapPtr nsMap = NULL;

8700

xmlNsMapItemPtr /* topmi = NULL, */ mi;

8701

/* @ancestorsOnly should be set by an option flag. */

8702

int ancestorsOnly = 0;

8703

int optRemoveRedundantNS =

8704

((xmlDOMReconcileNSOptions) options & XML_DOM_RECONNS_REMOVEREDUND) ? 1 : 0;

8705

xmlNsPtr *listRedund = NULL;

8706

int sizeRedund = 0, nbRedund = 0, ret, i, j;

8707

8708

if ((elem == NULL) || (elem->doc == NULL) ||

8709

(elem->type != XML_ELEMENT_NODE))

8710

return (-1);

8711

8712

doc = elem->doc;

8713

cur = elem;

8714

do {

8715

switch (cur->type) {

8716

case XML_ELEMENT_NODE:

8717

adoptns = 1;

8718

curElem = cur;

8719

depth++;

8720

/*

8721

* Namespace declarations.

8722

*/

8723

if (cur->nsDef != NULL) {

8724

prevns = NULL;

8725

ns = cur->nsDef;

8726

while (ns != NULL) {

8727

if (! parnsdone) {

8728

if ((elem->parent) &&

8729

((xmlNodePtr) elem->parent->doc != elem->parent)) {

8730

/*

8731

* Gather ancestor in-scope ns-decls.

8732

*/

8733

if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap,

8734

elem->parent) == -1)

8735

goto internal_error;

8736

}

8737

parnsdone = 1;

8738

}

8739

8740

/*

8741

* Lookup the ns ancestor-axis for equal ns-decls in scope.

8742

*/

8743

if (optRemoveRedundantNS && XML_NSMAP_NOTEMPTY(nsMap)) {

8744

XML_NSMAP_FOREACH(nsMap, mi) {

8745

if ((mi->depth >= XML_TREE_NSMAP_PARENT) &&

8746

(mi->shadowDepth == -1) &&

8747

((ns->prefix == mi->newNs->prefix) ||

8748

xmlStrEqual(ns->prefix, mi->newNs->prefix)) &&

8749

((ns->href == mi->newNs->href) ||

8750

xmlStrEqual(ns->href, mi->newNs->href)))

8751

{

8752

/*

8753

* A redundant ns-decl was found.

8754

* Add it to the list of redundant ns-decls.

8755

*/

8756

if (xmlDOMWrapNSNormAddNsMapItem2(&listRedund,

8757

&sizeRedund, &nbRedund, ns, mi->newNs) == -1)

8758

goto internal_error;

8759

/*

8760

* Remove the ns-decl from the element-node.

8761

*/

8762

if (prevns)

8763

prevns->next = ns->next;

8764

else

8765

cur->nsDef = ns->next;

8766

goto next_ns_decl;

8767

}

8768

}

8769

}

8770

8771

/*

8772

* Skip ns-references handling if the referenced

8773

* ns-decl is declared on the same element.

8774

*/

8775

if ((cur->ns != NULL) && adoptns && (cur->ns == ns))

8776

adoptns = 0;

8777

/*

8778

* Does it shadow any ns-decl?

8779

*/

8780

if (XML_NSMAP_NOTEMPTY(nsMap)) {

8781

XML_NSMAP_FOREACH(nsMap, mi) {

8782

if ((mi->depth >= XML_TREE_NSMAP_PARENT) &&

8783

(mi->shadowDepth == -1) &&

8784

((ns->prefix == mi->newNs->prefix) ||

8785

xmlStrEqual(ns->prefix, mi->newNs->prefix))) {

8786

8787

mi->shadowDepth = depth;

8788

}

8789

}

8790

}

8791

/*

8792

* Push mapping.

8793

*/

8794

if (xmlDOMWrapNsMapAddItem(&nsMap, -1, ns, ns,

8795

depth) == NULL)

8796

goto internal_error;

8797

8798

prevns = ns;

8799

next_ns_decl:

8800

ns = ns->next;

8801

}

8802

}

8803

if (! adoptns)

8804

goto ns_end;

8805

/* No break on purpose. */

8806

case XML_ATTRIBUTE_NODE:

8807

/* No ns, no fun. */

8808

if (cur->ns == NULL)

8809

goto ns_end;

8810

8811

if (! parnsdone) {

8812

if ((elem->parent) &&

8813

((xmlNodePtr) elem->parent->doc != elem->parent)) {

8814

if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap,

8815

elem->parent) == -1)

8816

goto internal_error;

8817

}

8818

parnsdone = 1;

8819

}

8820

/*

8821

* Adjust the reference if this was a redundant ns-decl.

8822

*/

8823

if (listRedund) {

8824

for (i = 0, j = 0; i < nbRedund; i++, j += 2) {

8825

if (cur->ns == listRedund[j]) {

8826

cur->ns = listRedund[++j];

8827

break;

8828

}

8829

}

8830

}

8831

/*

8832

* Adopt ns-references.

8833

*/

8834

if (XML_NSMAP_NOTEMPTY(nsMap)) {

8835

/*

8836

* Search for a mapping.

8837

*/

8838

XML_NSMAP_FOREACH(nsMap, mi) {

8839

if ((mi->shadowDepth == -1) &&

8840

(cur->ns == mi->oldNs)) {

8841

8842

cur->ns = mi->newNs;

8843

goto ns_end;

8844

}

8845

}

8846

}

8847

/*

8848

* Aquire a normalized ns-decl and add it to the map.

8849

*/

8850

if (xmlDOMWrapNSNormAquireNormalizedNs(doc, curElem,

8851

cur->ns, &ns,

8852

&nsMap, depth,

8853

ancestorsOnly,

8854

(cur->type == XML_ATTRIBUTE_NODE) ? 1 : 0) == -1)

8855

goto internal_error;

8856

cur->ns = ns;

8857

8858

ns_end:

8859

if ((cur->type == XML_ELEMENT_NODE) &&

8860

(cur->properties != NULL)) {

8861

/*

8862

* Process attributes.

8863

*/

8864

cur = (xmlNodePtr) cur->properties;

8865

continue;

8866

}

8867

break;

8868

default:

8869

goto next_sibling;

8870

}

8871

into_content:

8872

if ((cur->type == XML_ELEMENT_NODE) &&

8873

(cur->children != NULL)) {

8874

/*

8875

* Process content of element-nodes only.

8876

*/

8877

cur = cur->children;

8878

continue;

8879

}

8880

next_sibling:

8881

if (cur == elem)

8882

break;

8883

if (cur->type == XML_ELEMENT_NODE) {

8884

if (XML_NSMAP_NOTEMPTY(nsMap)) {

8885

/*

8886

* Pop mappings.

8887

*/

8888

while ((nsMap->last != NULL) &&

8889

(nsMap->last->depth >= depth))

8890

{

8891

XML_NSMAP_POP(nsMap, mi)

8892

}

8893

/*

8894

* Unshadow.

8895

*/

8896

XML_NSMAP_FOREACH(nsMap, mi) {

8897

if (mi->shadowDepth >= depth)

8898

mi->shadowDepth = -1;

8899

}

8900

}

8901

depth--;

8902

}

8903

if (cur->next != NULL)

8904

cur = cur->next;

8905

else {

8906

if (cur->type == XML_ATTRIBUTE_NODE) {

8907

cur = cur->parent;

8908

goto into_content;

8909

}

8910

cur = cur->parent;

8911

goto next_sibling;

8912

}

8913

} while (cur != NULL);

8914

8915

ret = 0;

8916

goto exit;

8917

internal_error:

8918

ret = -1;

8919

exit:

8920

if (listRedund) {

8921

for (i = 0, j = 0; i < nbRedund; i++, j += 2) {

8922

xmlFreeNs(listRedund[j]);

8923

}

8924

xmlFree(listRedund);

8925

}

8926

if (nsMap != NULL)

8927

xmlDOMWrapNsMapFree(nsMap);

8928

return (ret);

8929

}

8930

8931

/*

8932

* xmlDOMWrapAdoptBranch:

8933

* @ctxt: the optional context for custom processing

8934

* @sourceDoc: the optional sourceDoc

8935

* @node: the element-node to start with

8936

* @destDoc: the destination doc for adoption

8937

* @destParent: the optional new parent of @node in @destDoc

8938

* @options: option flags

8939

*

8940

* Ensures that ns-references point to @destDoc: either to

8941

* elements->nsDef entries if @destParent is given, or to

8942

* @destDoc->oldNs otherwise.

8943

* If @destParent is given, it ensures that the tree is namespace

8944

* wellformed by creating additional ns-decls where needed.

8945

* Note that, since prefixes of already existent ns-decls can be

8946

* shadowed by this process, it could break QNames in attribute

8947

* values or element content.

8948

*

8949

* NOTE: This function was not intensively tested.

8950

*

8951

* Returns 0 if succeeded, -1 otherwise and on API/internal errors.

8952

*/

8953

static int

8954

xmlDOMWrapAdoptBranch(xmlDOMWrapCtxtPtr ctxt,

8955

xmlDocPtr sourceDoc,

8956

xmlNodePtr node,

8957

xmlDocPtr destDoc,

8958

xmlNodePtr destParent,

8959

int options ATTRIBUTE_UNUSED)

8960

{

8961

int ret = 0;

8962

xmlNodePtr cur, curElem = NULL;

8963

xmlNsMapPtr nsMap = NULL;

8964

xmlNsMapItemPtr mi;

8965

xmlNsPtr ns = NULL;

8966

int depth = -1, adoptStr = 1;

8967

/* gather @parent's ns-decls. */

8968

int parnsdone;

8969

/* @ancestorsOnly should be set per option. */

8970

int ancestorsOnly = 0;

8971

8972

/*

8973

* Optimize string adoption for equal or none dicts.

8974

*/

8975

if ((sourceDoc != NULL) &&

8976

(sourceDoc->dict == destDoc->dict))

8977

adoptStr = 0;

8978

else

8979

adoptStr = 1;

8980

8981

/*

8982

* Get the ns-map from the context if available.

8983

*/

8984

if (ctxt)

8985

nsMap = (xmlNsMapPtr) ctxt->namespaceMap;

8986

/*

8987

* Disable search for ns-decls in the parent-axis of the

8988

* desination element, if:

8989

* 1) there's no destination parent

8990

* 2) custom ns-reference handling is used

8991

*/

8992

if ((destParent == NULL) ||

8993

(ctxt && ctxt->getNsForNodeFunc))

8994

{

8995

parnsdone = 1;

8996

} else

8997

parnsdone = 0;

8998

8999

cur = node;

9000

if ((cur != NULL) && (cur->type == XML_NAMESPACE_DECL))

9001

goto internal_error;

9002

9003

while (cur != NULL) {

9004

/*

9005

* Paranoid source-doc sanity check.

9006

*/

9007

if (cur->doc != sourceDoc) {

9008

/*

9009

* We'll assume XIncluded nodes if the doc differs.

9010

* TODO: Do we need to reconciliate XIncluded nodes?

9011

* This here skips XIncluded nodes and tries to handle

9012

* broken sequences.

9013

*/

9014

if (cur->next == NULL)

9015

goto leave_node;

9016

do {

9017

cur = cur->next;

9018

if ((cur->type == XML_XINCLUDE_END) ||

9019

(cur->doc == node->doc))

9020

break;

9021

} while (cur->next != NULL);

9022

9023

if (cur->doc != node->doc)

9024

goto leave_node;

9025

}

9026

cur->doc = destDoc;

9027

switch (cur->type) {

9028

case XML_XINCLUDE_START:

9029

case XML_XINCLUDE_END:

9030

/*

9031

* TODO

9032

*/

9033

return (-1);

9034

case XML_ELEMENT_NODE:

9035

curElem = cur;

9036

depth++;

9037

/*

9038

* Namespace declarations.

9039

* - ns->href and ns->prefix are never in the dict, so

9040

* we need not move the values over to the destination dict.

9041

* - Note that for custom handling of ns-references,

9042

* the ns-decls need not be stored in the ns-map,

9043

* since they won't be referenced by node->ns.

9044

*/

9045

if ((cur->nsDef) &&

9046

((ctxt == NULL) || (ctxt->getNsForNodeFunc == NULL)))

9047

{

9048

if (! parnsdone) {

9049

/*

9050

* Gather @parent's in-scope ns-decls.

9051

*/

9052

if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap,

9053

destParent) == -1)

9054

goto internal_error;

9055

parnsdone = 1;

9056

}

9057

for (ns = cur->nsDef; ns != NULL; ns = ns->next) {

9058

/*

9059

* NOTE: ns->prefix and ns->href are never in the dict.

9060

* XML_TREE_ADOPT_STR(ns->prefix)

9061

* XML_TREE_ADOPT_STR(ns->href)

9062

*/

9063

/*

9064

* Does it shadow any ns-decl?

9065

*/

9066

if (XML_NSMAP_NOTEMPTY(nsMap)) {

9067

XML_NSMAP_FOREACH(nsMap, mi) {

9068

if ((mi->depth >= XML_TREE_NSMAP_PARENT) &&

9069

(mi->shadowDepth == -1) &&

9070

((ns->prefix == mi->newNs->prefix) ||

9071

xmlStrEqual(ns->prefix,

9072

mi->newNs->prefix))) {

9073

9074

mi->shadowDepth = depth;

9075

}

9076

}

9077

}

9078

/*

9079

* Push mapping.

9080

*/

9081

if (xmlDOMWrapNsMapAddItem(&nsMap, -1,

9082

ns, ns, depth) == NULL)

9083

goto internal_error;

9084

}

9085

}

9086

/* No break on purpose. */

9087

case XML_ATTRIBUTE_NODE:

9088

/* No namespace, no fun. */

9089

if (cur->ns == NULL)

9090

goto ns_end;

9091

9092

if (! parnsdone) {

9093

if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap,

9094

destParent) == -1)

9095

goto internal_error;

9096

parnsdone = 1;

9097

}

9098

/*

9099

* Adopt ns-references.

9100

*/

9101

if (XML_NSMAP_NOTEMPTY(nsMap)) {

9102

/*

9103

* Search for a mapping.

9104

*/

9105

XML_NSMAP_FOREACH(nsMap, mi) {

9106

if ((mi->shadowDepth == -1) &&

9107

(cur->ns == mi->oldNs)) {

9108

9109

cur->ns = mi->newNs;

9110

goto ns_end;

9111

}

9112

}

9113

}

9114

/*

9115

* No matching namespace in scope. We need a new one.

9116

*/

9117

if ((ctxt) && (ctxt->getNsForNodeFunc)) {

9118

/*

9119

* User-defined behaviour.

9120

*/

9121

ns = ctxt->getNsForNodeFunc(ctxt, cur,

9122

cur->ns->href, cur->ns->prefix);

9123

/*

9124

* Insert mapping if ns is available; it's the users fault

9125

* if not.

9126

*/

9127

if (xmlDOMWrapNsMapAddItem(&nsMap, -1,

9128

cur->ns, ns, XML_TREE_NSMAP_CUSTOM) == NULL)

9129

goto internal_error;

9130

cur->ns = ns;

9131

} else {

9132

/*

9133

* Aquire a normalized ns-decl and add it to the map.

9134

*/

9135

if (xmlDOMWrapNSNormAquireNormalizedNs(destDoc,

9136

/* ns-decls on curElem or on destDoc->oldNs */

9137

destParent ? curElem : NULL,

9138

cur->ns, &ns,

9139

&nsMap, depth,

9140

ancestorsOnly,

9141

/* ns-decls must be prefixed for attributes. */

9142

(cur->type == XML_ATTRIBUTE_NODE) ? 1 : 0) == -1)

9143

goto internal_error;

9144

cur->ns = ns;

9145

}

9146

ns_end:

9147

/*

9148

* Further node properties.

9149

* TODO: Is this all?

9150

*/

9151

XML_TREE_ADOPT_STR(cur->name)

9152

if (cur->type == XML_ELEMENT_NODE) {

9153

cur->psvi = NULL;

9154

cur->line = 0;

9155

cur->extra = 0;

9156

/*

9157

* Walk attributes.

9158

*/

9159

if (cur->properties != NULL) {

9160

/*

9161

* Process first attribute node.

9162

*/

9163

cur = (xmlNodePtr) cur->properties;

9164

continue;

9165

}

9166

} else {

9167

/*

9168

* Attributes.

9169

*/

9170

if ((sourceDoc != NULL) &&

9171

(((xmlAttrPtr) cur)->atype == XML_ATTRIBUTE_ID))

9172

{

9173

xmlRemoveID(sourceDoc, (xmlAttrPtr) cur);

9174

}

9175

((xmlAttrPtr) cur)->atype = 0;

9176

((xmlAttrPtr) cur)->psvi = NULL;

9177

}

9178

break;

9179

case XML_TEXT_NODE:

9180

case XML_CDATA_SECTION_NODE:

9181

/*

9182

* This puts the content in the dest dict, only if

9183

* it was previously in the source dict.

9184

*/

9185

XML_TREE_ADOPT_STR_2(cur->content)

9186

goto leave_node;

9187

case XML_ENTITY_REF_NODE:

9188

/*

9189

* Remove reference to the entitity-node.

9190

*/

9191

cur->content = NULL;

9192

cur->children = NULL;

9193

cur->last = NULL;

9194

if ((destDoc->intSubset) || (destDoc->extSubset)) {

9195

xmlEntityPtr ent;

9196

/*

9197

* Assign new entity-node if available.

9198

*/

9199

ent = xmlGetDocEntity(destDoc, cur->name);

9200

if (ent != NULL) {

9201

cur->content = ent->content;

9202

cur->children = (xmlNodePtr) ent;

9203

cur->last = (xmlNodePtr) ent;

9204

}

9205

}

9206

goto leave_node;

9207

case XML_PI_NODE:

9208

XML_TREE_ADOPT_STR(cur->name)

9209

XML_TREE_ADOPT_STR_2(cur->content)

9210

break;

9211

case XML_COMMENT_NODE:

9212

break;

9213

default:

9214

goto internal_error;

9215

}

9216

/*

9217

* Walk the tree.

9218

*/

9219

if (cur->children != NULL) {

9220

cur = cur->children;

9221

continue;

9222

}

9223

9224

leave_node:

9225

if (cur == node)

9226

break;

9227

if ((cur->type == XML_ELEMENT_NODE) ||

9228

(cur->type == XML_XINCLUDE_START) ||

9229

(cur->type == XML_XINCLUDE_END))

9230

{

9231

/*

9232

* TODO: Do we expect nsDefs on XML_XINCLUDE_START?

9233

*/

9234

if (XML_NSMAP_NOTEMPTY(nsMap)) {

9235

/*

9236

* Pop mappings.

9237

*/

9238

while ((nsMap->last != NULL) &&

9239

(nsMap->last->depth >= depth))

9240

{

9241

XML_NSMAP_POP(nsMap, mi)

9242

}

9243

/*

9244

* Unshadow.

9245

*/

9246

XML_NSMAP_FOREACH(nsMap, mi) {

9247

if (mi->shadowDepth >= depth)

9248

mi->shadowDepth = -1;

9249

}

9250

}

9251

depth--;

9252

}

9253

if (cur->next != NULL)

9254

cur = cur->next;

9255

else if ((cur->type == XML_ATTRIBUTE_NODE) &&

9256

(cur->parent->children != NULL))

9257

{

9258

cur = cur->parent->children;

9259

} else {

9260

cur = cur->parent;

9261

goto leave_node;

9262

}

9263

}

9264

9265

goto exit;

9266

9267

internal_error:

9268

ret = -1;

9269

9270

exit:

9271

/*

9272

* Cleanup.

9273

*/

9274

if (nsMap != NULL) {

9275

if ((ctxt) && (ctxt->namespaceMap == nsMap)) {

9276

/*

9277

* Just cleanup the map but don't free.

9278

*/

9279

if (nsMap->first) {

9280

if (nsMap->pool)

9281

nsMap->last->next = nsMap->pool;

9282

nsMap->pool = nsMap->first;

9283

nsMap->first = NULL;

9284

}

9285

} else

9286

xmlDOMWrapNsMapFree(nsMap);

9287

}

9288

return(ret);

9289

}

9290

9291

/*

9292

* xmlDOMWrapCloneNode:

9293

* @ctxt: the optional context for custom processing

9294

* @sourceDoc: the optional sourceDoc

9295

* @node: the node to start with

9296

* @resNode: the clone of the given @node

9297

* @destDoc: the destination doc

9298

* @destParent: the optional new parent of @node in @destDoc

9299

* @deep: descend into child if set

9300

* @options: option flags

9301

*

9302

* References of out-of scope ns-decls are remapped to point to @destDoc:

9303

* 1) If @destParent is given, then nsDef entries on element-nodes are used

9304

* 2) If *no* @destParent is given, then @destDoc->oldNs entries are used.

9305

* This is the case when you don't know already where the cloned branch

9306

* will be added to.

9307

*

9308

* If @destParent is given, it ensures that the tree is namespace

9309

* wellformed by creating additional ns-decls where needed.

9310

* Note that, since prefixes of already existent ns-decls can be

9311

* shadowed by this process, it could break QNames in attribute

9312

* values or element content.

9313

* TODO:

9314

* 1) What to do with XInclude? Currently this returns an error for XInclude.

9315

*

9316

* Returns 0 if the operation succeeded,

9317

* 1 if a node of unsupported (or not yet supported) type was given,

9318

* -1 on API/internal errors.

9319

*/

9320

9321

int

9322

xmlDOMWrapCloneNode(xmlDOMWrapCtxtPtr ctxt,

9323

xmlDocPtr sourceDoc,

9324

xmlNodePtr node,

9325

xmlNodePtr *resNode,

9326

xmlDocPtr destDoc,

9327

xmlNodePtr destParent,

9328

int deep,

9329

int options ATTRIBUTE_UNUSED)

9330

{

9331

int ret = 0;

9332

xmlNodePtr cur, curElem = NULL;

9333

xmlNsMapPtr nsMap = NULL;

9334

xmlNsMapItemPtr mi;

9335

xmlNsPtr ns;

9336

int depth = -1;

9337

/* int adoptStr = 1; */

9338

/* gather @parent's ns-decls. */

9339

int parnsdone = 0;

9340

/*

9341

* @ancestorsOnly:

9342

* TODO: @ancestorsOnly should be set per option.

9343

*

9344

*/

9345

int ancestorsOnly = 0;

9346

xmlNodePtr resultClone = NULL, clone = NULL, parentClone = NULL, prevClone = NULL;

9347

xmlNsPtr cloneNs = NULL, *cloneNsDefSlot = NULL;

9348

xmlDictPtr dict; /* The destination dict */

9349

9350

if ((node == NULL) || (resNode == NULL) || (destDoc == NULL))

9351

return(-1);

9352

/*

9353

* TODO: Initially we support only element-nodes.

9354

*/

9355

if (node->type != XML_ELEMENT_NODE)

9356

return(1);

9357

/*

9358

* Check node->doc sanity.

9359

*/

9360

if ((node->doc != NULL) && (sourceDoc != NULL) &&

9361

(node->doc != sourceDoc)) {

9362

/*

9363

* Might be an XIncluded node.

9364

*/

9365

return (-1);

9366

}

9367

if (sourceDoc == NULL)

9368

sourceDoc = node->doc;

9369

if (sourceDoc == NULL)

9370

return (-1);

9371

9372

dict = destDoc->dict;

9373

/*

9374

* Reuse the namespace map of the context.

9375

*/

9376

if (ctxt)

9377

nsMap = (xmlNsMapPtr) ctxt->namespaceMap;

9378

9379

*resNode = NULL;

9380

9381

cur = node;

9382

if ((cur != NULL) && (cur->type == XML_NAMESPACE_DECL))

9383

return(-1);

9384

9385

while (cur != NULL) {

9386

if (cur->doc != sourceDoc) {

9387

/*

9388

* We'll assume XIncluded nodes if the doc differs.

9389

* TODO: Do we need to reconciliate XIncluded nodes?

9390

* TODO: This here returns -1 in this case.

9391

*/

9392

goto internal_error;

9393

}

9394

/*

9395

* Create a new node.

9396

*/

9397

switch (cur->type) {

9398

case XML_XINCLUDE_START:

9399

case XML_XINCLUDE_END:

9400

/*

9401

* TODO: What to do with XInclude?

9402

*/

9403

goto internal_error;

9404

break;

9405

case XML_ELEMENT_NODE:

9406

case XML_TEXT_NODE:

9407

case XML_CDATA_SECTION_NODE:

9408

case XML_COMMENT_NODE:

9409

case XML_PI_NODE:

9410

case XML_DOCUMENT_FRAG_NODE:

9411

case XML_ENTITY_REF_NODE:

9412

case XML_ENTITY_NODE:

9413

/*

9414

* Nodes of xmlNode structure.

9415

*/

9416

clone = (xmlNodePtr) xmlMalloc(sizeof(xmlNode));

9417

if (clone == NULL) {

9418

xmlTreeErrMemory("xmlDOMWrapCloneNode(): allocating a node");

9419

goto internal_error;

9420

}

9421

memset(clone, 0, sizeof(xmlNode));

9422

/*

9423

* Set hierachical links.

9424

*/

9425

if (resultClone != NULL) {

9426

clone->parent = parentClone;

9427

if (prevClone) {

9428

prevClone->next = clone;

9429

clone->prev = prevClone;

9430

} else

9431

parentClone->children = clone;

9432

} else

9433

resultClone = clone;

9434

9435

break;

9436

case XML_ATTRIBUTE_NODE:

9437

/*

9438

* Attributes (xmlAttr).

9439

*/

9440

clone = (xmlNodePtr) xmlMalloc(sizeof(xmlAttr));

9441

if (clone == NULL) {

9442

xmlTreeErrMemory("xmlDOMWrapCloneNode(): allocating an attr-node");

9443

goto internal_error;

9444

}

9445

memset(clone, 0, sizeof(xmlAttr));

9446

/*

9447

* Set hierachical links.

9448

* TODO: Change this to add to the end of attributes.

9449

*/

9450

if (resultClone != NULL) {

9451

clone->parent = parentClone;

9452

if (prevClone) {

9453

prevClone->next = clone;

9454

clone->prev = prevClone;

9455

} else

9456

parentClone->properties = (xmlAttrPtr) clone;

9457

} else

9458

resultClone = clone;

9459

break;

9460

default:

9461

/*

9462

* TODO QUESTION: Any other nodes expected?

9463

*/

9464

goto internal_error;

9465

}

9466

9467

clone->type = cur->type;

9468

clone->doc = destDoc;

9469

9470

/*

9471

* Clone the name of the node if any.

9472

*/

9473

if (cur->name == xmlStringText)

9474

clone->name = xmlStringText;

9475

else if (cur->name == xmlStringTextNoenc)

9476

/*

9477

* NOTE: Although xmlStringTextNoenc is never assigned to a node

9478

* in tree.c, it might be set in Libxslt via

9479

* "xsl:disable-output-escaping".

9480

*/

9481

clone->name = xmlStringTextNoenc;

9482

else if (cur->name == xmlStringComment)

9483

clone->name = xmlStringComment;

9484

else if (cur->name != NULL) {

9485

DICT_CONST_COPY(cur->name, clone->name);

9486

}

9487

9488

switch (cur->type) {

9489

case XML_XINCLUDE_START:

9490

case XML_XINCLUDE_END:

9491

/*

9492

* TODO

9493

*/

9494

return (-1);

9495

case XML_ELEMENT_NODE:

9496

curElem = cur;

9497

depth++;

9498

/*

9499

* Namespace declarations.

9500

*/

9501

if (cur->nsDef != NULL) {

9502

if (! parnsdone) {

9503

if (destParent && (ctxt == NULL)) {

9504

/*

9505

* Gather @parent's in-scope ns-decls.

9506

*/

9507

if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap,

9508

destParent) == -1)

9509

goto internal_error;

9510

}

9511

parnsdone = 1;

9512

}

9513

/*

9514

* Clone namespace declarations.

9515

*/

9516

cloneNsDefSlot = &(clone->nsDef);

9517

for (ns = cur->nsDef; ns != NULL; ns = ns->next) {

9518

/*

9519

* Create a new xmlNs.

9520

*/

9521

cloneNs = (xmlNsPtr) xmlMalloc(sizeof(xmlNs));

9522

if (cloneNs == NULL) {

9523

xmlTreeErrMemory("xmlDOMWrapCloneNode(): "

9524

"allocating namespace");

9525

return(-1);

9526

}

9527

memset(cloneNs, 0, sizeof(xmlNs));

9528

cloneNs->type = XML_LOCAL_NAMESPACE;

9529

9530

if (ns->href != NULL)

9531

cloneNs->href = xmlStrdup(ns->href);

9532

if (ns->prefix != NULL)

9533

cloneNs->prefix = xmlStrdup(ns->prefix);

9534

9535

*cloneNsDefSlot = cloneNs;

9536

cloneNsDefSlot = &(cloneNs->next);

9537

9538

/*

9539

* Note that for custom handling of ns-references,

9540

* the ns-decls need not be stored in the ns-map,

9541

* since they won't be referenced by node->ns.

9542

*/

9543

if ((ctxt == NULL) ||

9544

(ctxt->getNsForNodeFunc == NULL))

9545

{

9546

/*

9547

* Does it shadow any ns-decl?

9548

*/

9549

if (XML_NSMAP_NOTEMPTY(nsMap)) {

9550

XML_NSMAP_FOREACH(nsMap, mi) {

9551

if ((mi->depth >= XML_TREE_NSMAP_PARENT) &&

9552

(mi->shadowDepth == -1) &&

9553

((ns->prefix == mi->newNs->prefix) ||

9554

xmlStrEqual(ns->prefix,

9555

mi->newNs->prefix))) {

9556

/*

9557

* Mark as shadowed at the current

9558

* depth.

9559

*/

9560

mi->shadowDepth = depth;

9561

}

9562

}

9563

}

9564

/*

9565

* Push mapping.

9566

*/

9567

if (xmlDOMWrapNsMapAddItem(&nsMap, -1,

9568

ns, cloneNs, depth) == NULL)

9569

goto internal_error;

9570

}

9571

}

9572

}

9573

/* cur->ns will be processed further down. */

9574

break;

9575

case XML_ATTRIBUTE_NODE:

9576

/* IDs will be processed further down. */

9577

/* cur->ns will be processed further down. */

9578

break;

9579

case XML_TEXT_NODE:

9580

case XML_CDATA_SECTION_NODE:

9581

/*

9582

* Note that this will also cover the values of attributes.

9583

*/

9584

DICT_COPY(cur->content, clone->content);

9585

goto leave_node;

9586

case XML_ENTITY_NODE:

9587

/* TODO: What to do here? */

9588

goto leave_node;

9589

case XML_ENTITY_REF_NODE:

9590

if (sourceDoc != destDoc) {

9591

if ((destDoc->intSubset) || (destDoc->extSubset)) {

9592

xmlEntityPtr ent;

9593

/*

9594

* Different doc: Assign new entity-node if available.

9595

*/

9596

ent = xmlGetDocEntity(destDoc, cur->name);

9597

if (ent != NULL) {

9598

clone->content = ent->content;

9599

clone->children = (xmlNodePtr) ent;

9600

clone->last = (xmlNodePtr) ent;

9601

}

9602

}

9603

} else {

9604

/*

9605

* Same doc: Use the current node's entity declaration

9606

* and value.

9607

*/

9608

clone->content = cur->content;

9609

clone->children = cur->children;

9610

clone->last = cur->last;

9611

}

9612

goto leave_node;

9613

case XML_PI_NODE:

9614

DICT_COPY(cur->content, clone->content);

9615

goto leave_node;

9616

case XML_COMMENT_NODE:

9617

DICT_COPY(cur->content, clone->content);

9618

goto leave_node;

9619

default:

9620

goto internal_error;

9621

}

9622

9623

if (cur->ns == NULL)

9624

goto end_ns_reference;

9625

9626

/* handle_ns_reference: */

9627

/*

9628

** The following will take care of references to ns-decls ********

9629

** and is intended only for element- and attribute-nodes.

9630

**

9631

*/

9632

if (! parnsdone) {

9633

if (destParent && (ctxt == NULL)) {

9634

if (xmlDOMWrapNSNormGatherInScopeNs(&nsMap, destParent) == -1)

9635

goto internal_error;

9636

}

9637

parnsdone = 1;

9638

}

9639

/*

9640

* Adopt ns-references.

9641

*/

9642

if (XML_NSMAP_NOTEMPTY(nsMap)) {

9643

/*

9644

* Search for a mapping.

9645

*/

9646

XML_NSMAP_FOREACH(nsMap, mi) {

9647

if ((mi->shadowDepth == -1) &&

9648

(cur->ns == mi->oldNs)) {

9649

/*

9650

* This is the nice case: a mapping was found.

9651

*/

9652

clone->ns = mi->newNs;

9653

goto end_ns_reference;

9654

}

9655

}

9656

}

9657

/*

9658

* No matching namespace in scope. We need a new one.

9659

*/

9660

if ((ctxt != NULL) && (ctxt->getNsForNodeFunc != NULL)) {

9661

/*

9662

* User-defined behaviour.

9663

*/

9664

ns = ctxt->getNsForNodeFunc(ctxt, cur,

9665

cur->ns->href, cur->ns->prefix);

9666

/*

9667

* Add user's mapping.

9668

*/

9669

if (xmlDOMWrapNsMapAddItem(&nsMap, -1,

9670

cur->ns, ns, XML_TREE_NSMAP_CUSTOM) == NULL)

9671

goto internal_error;

9672

clone->ns = ns;

9673

} else {

9674

/*

9675

* Aquire a normalized ns-decl and add it to the map.

9676

*/

9677

if (xmlDOMWrapNSNormAquireNormalizedNs(destDoc,

9678

/* ns-decls on curElem or on destDoc->oldNs */

9679

destParent ? curElem : NULL,

9680

cur->ns, &ns,

9681

&nsMap, depth,

9682

/* if we need to search only in the ancestor-axis */

9683

ancestorsOnly,

9684

/* ns-decls must be prefixed for attributes. */

9685

(cur->type == XML_ATTRIBUTE_NODE) ? 1 : 0) == -1)

9686

goto internal_error;

9687

clone->ns = ns;

9688

}

9689

9690

end_ns_reference:

9691

9692

/*

9693

* Some post-processing.

9694

*

9695

* Handle ID attributes.

9696

*/

9697

if ((clone->type == XML_ATTRIBUTE_NODE) &&

9698

(clone->parent != NULL))

9699

{

9700

if (xmlIsID(destDoc, clone->parent, (xmlAttrPtr) clone)) {

9701

9702

xmlChar *idVal;

9703

9704

idVal = xmlNodeListGetString(cur->doc, cur->children, 1);

9705

if (idVal != NULL) {

9706

if (xmlAddID(NULL, destDoc, idVal, (xmlAttrPtr) cur) == NULL) {

9707

/* TODO: error message. */

9708

xmlFree(idVal);

9709

goto internal_error;

9710

}

9711

xmlFree(idVal);

9712

}

9713

}

9714

}

9715

/*

9716

**

9717

** The following will traverse the tree **************************

9718

**

9719

*

9720

* Walk the element's attributes before descending into child-nodes.

9721

*/

9722

if ((cur->type == XML_ELEMENT_NODE) && (cur->properties != NULL)) {

9723

prevClone = NULL;

9724

parentClone = clone;

9725

cur = (xmlNodePtr) cur->properties;

9726

continue;

9727

}

9728

into_content:

9729

/*

9730

* Descend into child-nodes.

9731

*/

9732

if (cur->children != NULL) {

9733

if (deep || (cur->type == XML_ATTRIBUTE_NODE)) {

9734

prevClone = NULL;

9735

parentClone = clone;

9736

cur = cur->children;

9737

continue;

9738

}

9739

}

9740

9741

leave_node:

9742

/*

9743

* At this point we are done with the node, its content

9744

* and an element-nodes's attribute-nodes.

9745

*/

9746

if (cur == node)

9747

break;

9748

if ((cur->type == XML_ELEMENT_NODE) ||

9749

(cur->type == XML_XINCLUDE_START) ||

9750

(cur->type == XML_XINCLUDE_END)) {

9751

/*

9752

* TODO: Do we expect nsDefs on XML_XINCLUDE_START?

9753

*/

9754

if (XML_NSMAP_NOTEMPTY(nsMap)) {

9755

/*

9756

* Pop mappings.

9757

*/

9758

while ((nsMap->last != NULL) &&

9759

(nsMap->last->depth >= depth))

9760

{

9761

XML_NSMAP_POP(nsMap, mi)

9762

}

9763

/*

9764

* Unshadow.

9765

*/

9766

XML_NSMAP_FOREACH(nsMap, mi) {

9767

if (mi->shadowDepth >= depth)

9768

mi->shadowDepth = -1;

9769

}

9770

}

9771

depth--;

9772

}

9773

if (cur->next != NULL) {

9774

prevClone = clone;

9775

cur = cur->next;

9776

} else if (cur->type != XML_ATTRIBUTE_NODE) {

9777

/*

9778

* Set clone->last.

9779

*/

9780

if (clone->parent != NULL)

9781

clone->parent->last = clone;

9782

clone = clone->parent;

9783

parentClone = clone->parent;

9784

/*

9785

* Process parent --> next;

9786

*/

9787

cur = cur->parent;

9788

goto leave_node;

9789

} else {

9790

/* This is for attributes only. */

9791

clone = clone->parent;

9792

parentClone = clone->parent;

9793

/*

9794

* Process parent-element --> children.

9795

*/

9796

cur = cur->parent;

9797

goto into_content;

9798

}

9799

}

9800

goto exit;

9801

9802

internal_error:

9803

ret = -1;

9804

9805

exit:

9806

/*

9807

* Cleanup.

9808

*/

9809

if (nsMap != NULL) {

9810

if ((ctxt) && (ctxt->namespaceMap == nsMap)) {

9811

/*

9812

* Just cleanup the map but don't free.

9813

*/

9814

if (nsMap->first) {

9815

if (nsMap->pool)

9816

nsMap->last->next = nsMap->pool;

9817

nsMap->pool = nsMap->first;

9818

nsMap->first = NULL;

9819

}

9820

} else

9821

xmlDOMWrapNsMapFree(nsMap);

9822

}

9823

/*

9824

* TODO: Should we try a cleanup of the cloned node in case of a

9825

* fatal error?

9826

*/

9827

*resNode = resultClone;

9828

return (ret);

9829

}

9830

9831

/*

9832

* xmlDOMWrapAdoptAttr:

9833

* @ctxt: the optional context for custom processing

9834

* @sourceDoc: the optional source document of attr

9835

* @attr: the attribute-node to be adopted

9836

* @destDoc: the destination doc for adoption

9837

* @destParent: the optional new parent of @attr in @destDoc

9838

* @options: option flags

9839

*

9840

* @attr is adopted by @destDoc.

9841

* Ensures that ns-references point to @destDoc: either to

9842

* elements->nsDef entries if @destParent is given, or to

9843

* @destDoc->oldNs otherwise.

9844

*

9845

* Returns 0 if succeeded, -1 otherwise and on API/internal errors.

9846

*/

9847

static int

9848

xmlDOMWrapAdoptAttr(xmlDOMWrapCtxtPtr ctxt,

9849

xmlDocPtr sourceDoc,

9850

xmlAttrPtr attr,

9851

xmlDocPtr destDoc,

9852

xmlNodePtr destParent,

9853

int options ATTRIBUTE_UNUSED)

9854

{

9855

xmlNodePtr cur;

9856

int adoptStr = 1;

9857

9858

if ((attr == NULL) || (destDoc == NULL))

9859

return (-1);

9860

9861

attr->doc = destDoc;

9862

if (attr->ns != NULL) {

9863

xmlNsPtr ns = NULL;

9864

9865

if (ctxt != NULL) {

9866

/* TODO: User defined. */

9867

}

9868

/* XML Namespace. */

9869

if (IS_STR_XML(attr->ns->prefix)) {

9870

ns = xmlTreeEnsureXMLDecl(destDoc);

9871

} else if (destParent == NULL) {

9872

/*

9873

* Store in @destDoc->oldNs.

9874

*/

9875

ns = xmlDOMWrapStoreNs(destDoc, attr->ns->href, attr->ns->prefix);

9876

} else {

9877

/*

9878

* Declare on @destParent.

9879

*/

9880

if (xmlSearchNsByNamespaceStrict(destDoc, destParent, attr->ns->href,

9881

&ns, 1) == -1)

9882

goto internal_error;

9883

if (ns == NULL) {

9884

ns = xmlDOMWrapNSNormDeclareNsForced(destDoc, destParent,

9885

attr->ns->href, attr->ns->prefix, 1);

9886

}

9887

}

9888

if (ns == NULL)

9889

goto internal_error;

9890

attr->ns = ns;

9891

}

9892

9893

XML_TREE_ADOPT_STR(attr->name);

9894

attr->atype = 0;

9895

attr->psvi = NULL;

9896

/*

9897

* Walk content.

9898

*/

9899

if (attr->children == NULL)

9900

return (0);

9901

cur = attr->children;

9902

if ((cur != NULL) && (cur->type == XML_NAMESPACE_DECL))

9903

goto internal_error;

9904

while (cur != NULL) {

9905

cur->doc = destDoc;

9906

switch (cur->type) {

9907

case XML_TEXT_NODE:

9908

case XML_CDATA_SECTION_NODE:

9909

XML_TREE_ADOPT_STR_2(cur->content)

9910

break;

9911

case XML_ENTITY_REF_NODE:

9912

/*

9913

* Remove reference to the entitity-node.

9914

*/

9915

cur->content = NULL;

9916

cur->children = NULL;

9917

cur->last = NULL;

9918

if ((destDoc->intSubset) || (destDoc->extSubset)) {

9919

xmlEntityPtr ent;

9920

/*

9921

* Assign new entity-node if available.

9922

*/

9923

ent = xmlGetDocEntity(destDoc, cur->name);

9924

if (ent != NULL) {

9925

cur->content = ent->content;

9926

cur->children = (xmlNodePtr) ent;

9927

cur->last = (xmlNodePtr) ent;

9928

}

9929

}

9930

break;

9931

default:

9932

break;

9933

}

9934

if (cur->children != NULL) {

9935

cur = cur->children;

9936

continue;

9937

}

9938

next_sibling:

9939

if (cur == (xmlNodePtr) attr)

9940

break;

9941

if (cur->next != NULL)

9942

cur = cur->next;

9943

else {

9944

cur = cur->parent;

9945

goto next_sibling;

9946

}

9947

}

9948

return (0);

9949

internal_error:

9950

return (-1);

9951

}

9952

9953

/*

9954

* xmlDOMWrapAdoptNode:

9955

* @ctxt: the optional context for custom processing

9956

* @sourceDoc: the optional sourceDoc

9957

* @node: the node to start with

9958

* @destDoc: the destination doc

9959

* @destParent: the optional new parent of @node in @destDoc

9960

* @options: option flags

9961

*

9962

* References of out-of scope ns-decls are remapped to point to @destDoc:

9963

* 1) If @destParent is given, then nsDef entries on element-nodes are used

9964

* 2) If *no* @destParent is given, then @destDoc->oldNs entries are used

9965

* This is the case when you have an unliked node and just want to move it

9966

* to the context of

9967

*

9968

* If @destParent is given, it ensures that the tree is namespace

9969

* wellformed by creating additional ns-decls where needed.

9970

* Note that, since prefixes of already existent ns-decls can be

9971

* shadowed by this process, it could break QNames in attribute

9972

* values or element content.

9973

* NOTE: This function was not intensively tested.

9974

*

9975

* Returns 0 if the operation succeeded,

9976

* 1 if a node of unsupported type was given,

9977

* 2 if a node of not yet supported type was given and

9978

* -1 on API/internal errors.

9979

*/

9980

int

9981

xmlDOMWrapAdoptNode(xmlDOMWrapCtxtPtr ctxt,

9982

xmlDocPtr sourceDoc,

9983

xmlNodePtr node,

9984

xmlDocPtr destDoc,

9985

xmlNodePtr destParent,

9986

int options)

9987

{

9988

if ((node == NULL) || (node->type == XML_NAMESPACE_DECL) ||

9989

(destDoc == NULL) ||

9990

((destParent != NULL) && (destParent->doc != destDoc)))

9991

return(-1);

9992

/*

9993

* Check node->doc sanity.

9994

*/

9995

if ((node->doc != NULL) && (sourceDoc != NULL) &&

9996

(node->doc != sourceDoc)) {

9997

/*

9998

* Might be an XIncluded node.

9999

*/

10000

return (-1);

10001

}

10002

if (sourceDoc == NULL)

10003

sourceDoc = node->doc;

10004

if (sourceDoc == destDoc)

10005

return (-1);

10006

switch (node->type) {

10007

case XML_ELEMENT_NODE:

10008

case XML_ATTRIBUTE_NODE:

10009

case XML_TEXT_NODE:

10010

case XML_CDATA_SECTION_NODE:

10011

case XML_ENTITY_REF_NODE:

10012

case XML_PI_NODE:

10013

case XML_COMMENT_NODE:

10014

break;

10015

case XML_DOCUMENT_FRAG_NODE:

10016

/* TODO: Support document-fragment-nodes. */

10017

return (2);

10018

default:

10019

return (1);

10020

}

10021

/*

10022

* Unlink only if @node was not already added to @destParent.

10023

*/

10024

if ((node->parent != NULL) && (destParent != node->parent))

10025

xmlUnlinkNode(node);

10026

10027

if (node->type == XML_ELEMENT_NODE) {

10028

return (xmlDOMWrapAdoptBranch(ctxt, sourceDoc, node,

10029

destDoc, destParent, options));

10030

} else if (node->type == XML_ATTRIBUTE_NODE) {

10031

return (xmlDOMWrapAdoptAttr(ctxt, sourceDoc,

10032

(xmlAttrPtr) node, destDoc, destParent, options));

10033

} else {

10034

xmlNodePtr cur = node;

10035

int adoptStr = 1;

10036

10037

cur->doc = destDoc;

10038

/*

10039

* Optimize string adoption.

10040

*/

10041

if ((sourceDoc != NULL) &&

10042

(sourceDoc->dict == destDoc->dict))

10043

adoptStr = 0;

10044

switch (node->type) {

10045

case XML_TEXT_NODE:

10046

case XML_CDATA_SECTION_NODE:

10047

XML_TREE_ADOPT_STR_2(node->content)

10048

break;

10049

case XML_ENTITY_REF_NODE:

10050

/*

10051

* Remove reference to the entitity-node.

10052

*/

10053

node->content = NULL;

10054

node->children = NULL;

10055

node->last = NULL;

10056

if ((destDoc->intSubset) || (destDoc->extSubset)) {

10057

xmlEntityPtr ent;

10058

/*

10059

* Assign new entity-node if available.

10060

*/

10061

ent = xmlGetDocEntity(destDoc, node->name);

10062

if (ent != NULL) {

10063

node->content = ent->content;

10064

node->children = (xmlNodePtr) ent;

10065

node->last = (xmlNodePtr) ent;

10066

}

10067

}

10068

XML_TREE_ADOPT_STR(node->name)

10069

break;

10070

case XML_PI_NODE: {

10071

XML_TREE_ADOPT_STR(node->name)

10072

XML_TREE_ADOPT_STR_2(node->content)

10073

break;

10074

}

10075

default:

10076

break;

10077

}

10078

}

10079

return (0);

10080

}

10081

10082

#define bottom_tree

10083

#include "elfgcchack.h"