cpython/Include/unicodeobject.h at main · faster-cpython/cpython · GitHub

History

968 lines (730 loc) · 32.6 KB

Raw

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

338

339

340

341

342

343

344

345

346

347

348

349

350

351

352

353

354

355

356

357

358

359

360

361

362

363

364

365

366

367

368

369

370

371

372

373

374

375

376

377

378

379

380

381

382

383

384

385

386

387

388

389

390

391

392

393

394

395

396

397

398

399

400

401

402

403

404

405

406

407

408

409

410

411

412

413

414

415

416

417

418

419

420

421

422

423

424

425

426

427

428

429

430

431

432

433

434

435

436

437

438

439

440

441

442

443

444

445

446

447

448

449

450

451

452

453

454

455

456

457

458

459

460

461

462

463

464

465

466

467

468

469

470

471

472

473

474

475

476

477

478

479

480

481

482

483

484

485

486

487

488

489

490

491

492

493

494

495

496

497

498

499

500

501

502

503

504

505

506

507

508

509

510

511

512

513

514

515

516

517

518

519

520

521

522

523

524

525

526

527

528

529

530

531

532

533

534

535

536

537

538

539

540

541

542

543

544

545

546

547

548

549

550

551

552

553

554

555

556

557

558

559

560

561

562

563

564

565

566

567

568

569

570

571

572

573

574

575

576

577

578

579

580

581

582

583

584

585

586

587

588

589

590

591

592

593

594

595

596

597

598

599

600

601

602

603

604

605

606

607

608

609

610

611

612

613

614

615

616

617

618

619

620

621

622

623

624

625

626

627

628

629

630

631

632

633

634

635

636

637

638

639

640

641

642

643

644

645

646

647

648

649

650

651

652

653

654

655

656

657

658

659

660

661

662

663

664

665

666

667

668

669

670

671

672

673

674

675

676

677

678

679

680

681

682

683

684

685

686

687

688

689

690

691

692

693

694

695

696

697

698

699

700

701

702

703

704

705

706

707

708

709

710

711

712

713

714

715

716

717

718

719

720

721

722

723

724

725

726

727

728

729

730

731

732

733

734

735

736

737

738

739

740

741

742

743

744

745

746

747

748

749

750

751

752

753

754

755

756

757

758

759

760

761

762

763

764

765

766

767

768

769

770

771

772

773

774

775

776

777

778

779

780

781

782

783

784

785

786

787

788

789

790

791

792

793

794

795

796

797

798

799

800

801

802

803

804

805

806

807

808

809

810

811

812

813

814

815

816

817

818

819

820

821

822

823

824

825

826

827

828

829

830

831

832

833

834

835

836

837

838

839

840

841

842

843

844

845

846

847

848

849

850

851

852

853

854

855

856

857

858

859

860

861

862

863

864

865

866

867

868

869

870

871

872

873

874

875

876

877

878

879

880

881

882

883

884

885

886

887

888

889

890

891

892

893

894

895

896

897

898

899

900

901

902

903

904

905

906

907

908

909

910

911

912

913

914

915

916

917

918

919

920

921

922

923

924

925

926

927

928

929

930

931

932

933

934

935

936

937

938

939

940

941

942

943

944

945

946

947

948

949

950

951

952

953

954

955

956

957

958

959

960

961

962

963

964

965

966

967

968

#ifndef Py_UNICODEOBJECT_H

#define Py_UNICODEOBJECT_H

Unicode implementation based on original code by Fredrik Lundh,

modified by Marc-Andre Lemburg (mal@lemburg.com) according to the

Unicode Integration Proposal. (See

http://www.egenix.com/files/python/unicode-proposal.txt).

Original header:

--------------------------------------------------------------------

* Yet another Unicode string type for Python. This type supports the

* 16-bit Basic Multilingual Plane (BMP) only.

* Written by Fredrik Lundh, January 1999.

* fredrik@pythonware.com

* http://www.pythonware.com

* --------------------------------------------------------------------

* This Unicode String Type is

* By obtaining, using, and/or copying this software and/or its

* associated documentation, you agree that you have read, understood,

* and will comply with the following terms and conditions:

* Permission to use, copy, modify, and distribute this software and its

* associated documentation for any purpose and without fee is hereby

* granted, provided that the above copyright notice appears in all

* copies, and that both that copyright notice and this permission notice

* appear in supporting documentation, and that the name of Secret Labs

* AB or the author not be used in advertising or publicity pertaining to

* distribution of the software without specific, written prior

* permission.

* SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO

* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND

* FITNESS. IN NO EVENT SHALL SECRET LABS AB OR THE AUTHOR BE LIABLE FOR

* ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT

* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

* -------------------------------------------------------------------- */

/* === Internal API ======================================================= */

/* --- Internal Unicode Format -------------------------------------------- */

/* Python 3.x requires unicode */

#define Py_USING_UNICODE

#ifndef SIZEOF_WCHAR_T

#error Must define SIZEOF_WCHAR_T

#endif

/* Soft-deprecated defines */

#define Py_UNICODE_SIZE SIZEOF_WCHAR_T

#if SIZEOF_WCHAR_T >= 4

#define Py_UNICODE_WIDE

#endif

/* Set these flags if the platform has "wchar.h" and the

wchar_t type is a 16-bit unsigned type */

/* #define HAVE_WCHAR_H */

/* #define HAVE_USABLE_WCHAR_T */

/* If the compiler provides a wchar_t type we try to support it

through the interface functions PyUnicode_FromWideChar(),

PyUnicode_AsWideChar() and PyUnicode_AsWideCharString(). */

#ifdef HAVE_USABLE_WCHAR_T

# ifndef HAVE_WCHAR_H

# define HAVE_WCHAR_H

# endif

#endif

/* Py_UCS4 and Py_UCS2 are typedefs for the respective

unicode representations. */

typedef uint32_t Py_UCS4;

typedef uint16_t Py_UCS2;

typedef uint8_t Py_UCS1;

#ifdef __cplusplus

extern "C" {

#endif

PyAPI_DATA(PyTypeObject) PyUnicode_Type;

PyAPI_DATA(PyTypeObject) PyUnicodeIter_Type;

#define PyUnicode_Check(op) \

PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_UNICODE_SUBCLASS)

#define PyUnicode_CheckExact(op) Py_IS_TYPE((op), &PyUnicode_Type)

/* --- Constants ---------------------------------------------------------- */

/* This Unicode character will be used as replacement character during

decoding if the errors argument is set to "replace". Note: the

Unicode character U+FFFD is the official REPLACEMENT CHARACTER in

Unicode 3.0. */

#define Py_UNICODE_REPLACEMENT_CHARACTER ((Py_UCS4) 0xFFFD)

/* === Public API ========================================================= */

/* Similar to PyUnicode_FromUnicode(), but u points to UTF-8 encoded bytes */

PyAPI_FUNC(PyObject*) PyUnicode_FromStringAndSize(

const char *u, /* UTF-8 encoded string */

Py_ssize_t size /* size of buffer */

);

/* Similar to PyUnicode_FromUnicode(), but u points to null-terminated

UTF-8 encoded bytes. The size is determined with strlen(). */

PyAPI_FUNC(PyObject*) PyUnicode_FromString(

const char *u /* UTF-8 encoded string */

);

#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000

PyAPI_FUNC(PyObject*) PyUnicode_Substring(

PyObject *str,

Py_ssize_t start,

Py_ssize_t end);

#endif

#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000

/* Copy the string into a UCS4 buffer including the null character if copy_null

is set. Return NULL and raise an exception on error. Raise a SystemError if

the buffer is smaller than the string. Return buffer on success.

buflen is the length of the buffer in (Py_UCS4) characters. */

PyAPI_FUNC(Py_UCS4*) PyUnicode_AsUCS4(

PyObject *unicode,

Py_UCS4* buffer,

Py_ssize_t buflen,

int copy_null);

/* Copy the string into a UCS4 buffer. A new buffer is allocated using

* PyMem_Malloc; if this fails, NULL is returned with a memory error

exception set. */

PyAPI_FUNC(Py_UCS4*) PyUnicode_AsUCS4Copy(PyObject *unicode);

#endif

#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000

/* Get the length of the Unicode object. */

PyAPI_FUNC(Py_ssize_t) PyUnicode_GetLength(

PyObject *unicode

);

#endif

#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000

/* Read a character from the string. */

PyAPI_FUNC(Py_UCS4) PyUnicode_ReadChar(

PyObject *unicode,

Py_ssize_t index

);

/* Write a character to the string. The string must have been created through

PyUnicode_New, must not be shared, and must not have been hashed yet.

Return 0 on success, -1 on error. */

PyAPI_FUNC(int) PyUnicode_WriteChar(

PyObject *unicode,

Py_ssize_t index,

Py_UCS4 character

);

#endif

/* Resize a Unicode object. The length is the number of codepoints.

*unicode is modified to point to the new (resized) object and 0

returned on success.

Try to resize the string in place (which is usually faster than allocating

a new string and copy characters), or create a new string.

Error handling is implemented as follows: an exception is set, -1

is returned and *unicode left untouched.

WARNING: The function doesn't check string content, the result may not be a

string in canonical representation. */

PyAPI_FUNC(int) PyUnicode_Resize(

PyObject **unicode, /* Pointer to the Unicode object */

Py_ssize_t length /* New length */

);

/* Decode obj to a Unicode object.

bytes, bytearray and other bytes-like objects are decoded according to the

given encoding and error handler. The encoding and error handler can be

NULL to have the interface use UTF-8 and "strict".

All other objects (including Unicode objects) raise an exception.

The API returns NULL in case of an error. The caller is responsible

for decref'ing the returned objects.

PyAPI_FUNC(PyObject*) PyUnicode_FromEncodedObject(

PyObject *obj, /* Object */

const char *encoding, /* encoding */

const char *errors /* error handling */

);

/* Copy an instance of a Unicode subtype to a new true Unicode object if

necessary. If obj is already a true Unicode object (not a subtype), return

the reference with *incremented* refcount.

The API returns NULL in case of an error. The caller is responsible

for decref'ing the returned objects.

PyAPI_FUNC(PyObject*) PyUnicode_FromObject(

PyObject *obj /* Object */

);

PyAPI_FUNC(PyObject *) PyUnicode_FromFormatV(

const char *format, /* ASCII-encoded string */

va_list vargs

);

PyAPI_FUNC(PyObject *) PyUnicode_FromFormat(

const char *format, /* ASCII-encoded string */

...

);

PyAPI_FUNC(void) PyUnicode_InternInPlace(PyObject **);

PyAPI_FUNC(PyObject *) PyUnicode_InternFromString(

const char *u /* UTF-8 encoded string */

);

/* --- wchar_t support for platforms which support it --------------------- */

#ifdef HAVE_WCHAR_H

/* Create a Unicode Object from the wchar_t buffer w of the given

size.

The buffer is copied into the new object. */

PyAPI_FUNC(PyObject*) PyUnicode_FromWideChar(

const wchar_t *w, /* wchar_t buffer */

Py_ssize_t size /* size of buffer */

);

/* Copies the Unicode Object contents into the wchar_t buffer w. At

most size wchar_t characters are copied.

Note that the resulting wchar_t string may or may not be

0-terminated. It is the responsibility of the caller to make sure

that the wchar_t string is 0-terminated in case this is required by

the application.

Returns the number of wchar_t characters copied (excluding a

possibly trailing 0-termination character) or -1 in case of an

error. */

PyAPI_FUNC(Py_ssize_t) PyUnicode_AsWideChar(

PyObject *unicode, /* Unicode object */

wchar_t *w, /* wchar_t buffer */

Py_ssize_t size /* size of buffer */

);

/* Convert the Unicode object to a wide character string. The output string

always ends with a nul character. If size is not NULL, write the number of

wide characters (excluding the null character) into *size.

Returns a buffer allocated by PyMem_Malloc() (use PyMem_Free() to free it)

on success. On error, returns NULL, *size is undefined and raises a

MemoryError. */

PyAPI_FUNC(wchar_t*) PyUnicode_AsWideCharString(

PyObject *unicode, /* Unicode object */

Py_ssize_t *size /* number of characters of the result */

);

#endif

/* --- Unicode ordinals --------------------------------------------------- */

/* Create a Unicode Object from the given Unicode code point ordinal.

The ordinal must be in range(0x110000). A ValueError is

raised in case it is not.

PyAPI_FUNC(PyObject*) PyUnicode_FromOrdinal(int ordinal);

/* === Builtin Codecs =====================================================

Many of these APIs take two arguments encoding and errors. These

parameters encoding and errors have the same semantics as the ones

of the builtin str() API.

Setting encoding to NULL causes the default encoding (UTF-8) to be used.

Error handling is set by errors which may also be set to NULL

meaning to use the default handling defined for the codec. Default

error handling for all builtin codecs is "strict" (ValueErrors are

raised).

The codecs all use a similar interface. Only deviation from the

generic ones are documented.

/* --- Manage the default encoding ---------------------------------------- */

/* Returns "utf-8". */

PyAPI_FUNC(const char*) PyUnicode_GetDefaultEncoding(void);

/* --- Generic Codecs ----------------------------------------------------- */

/* Create a Unicode object by decoding the encoded string s of the

given size. */

PyAPI_FUNC(PyObject*) PyUnicode_Decode(

const char *s, /* encoded string */

Py_ssize_t size, /* size of buffer */

const char *encoding, /* encoding */

const char *errors /* error handling */

);

/* Encodes a Unicode object and returns the result as Python string

object. */

PyAPI_FUNC(PyObject*) PyUnicode_AsEncodedString(

PyObject *unicode, /* Unicode object */

const char *encoding, /* encoding */

const char *errors /* error handling */

);

/* Build an encoding map. */

PyAPI_FUNC(PyObject*) PyUnicode_BuildEncodingMap(

PyObject* string /* 256 character map */

);

/* --- UTF-7 Codecs ------------------------------------------------------- */

PyAPI_FUNC(PyObject*) PyUnicode_DecodeUTF7(

const char *string, /* UTF-7 encoded string */

Py_ssize_t length, /* size of string */

const char *errors /* error handling */

);

PyAPI_FUNC(PyObject*) PyUnicode_DecodeUTF7Stateful(

const char *string, /* UTF-7 encoded string */

Py_ssize_t length, /* size of string */

const char *errors, /* error handling */

Py_ssize_t *consumed /* bytes consumed */

);

/* --- UTF-8 Codecs ------------------------------------------------------- */

PyAPI_FUNC(PyObject*) PyUnicode_DecodeUTF8(

const char *string, /* UTF-8 encoded string */

Py_ssize_t length, /* size of string */

const char *errors /* error handling */

);

PyAPI_FUNC(PyObject*) PyUnicode_DecodeUTF8Stateful(

const char *string, /* UTF-8 encoded string */

Py_ssize_t length, /* size of string */

const char *errors, /* error handling */

Py_ssize_t *consumed /* bytes consumed */

);

PyAPI_FUNC(PyObject*) PyUnicode_AsUTF8String(

PyObject *unicode /* Unicode object */

);

/* Returns a pointer to the default encoding (UTF-8) of the

Unicode object unicode and the size of the encoded representation

in bytes stored in *size.

In case of an error, no *size is set.

This function caches the UTF-8 encoded string in the unicodeobject

and subsequent calls will return the same string. The memory is released

when the unicodeobject is deallocated.

#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x030A0000

PyAPI_FUNC(const char *) PyUnicode_AsUTF8AndSize(

PyObject *unicode,

Py_ssize_t *size);

#endif

/* --- UTF-32 Codecs ------------------------------------------------------ */

/* Decodes length bytes from a UTF-32 encoded buffer string and returns

the corresponding Unicode object.

errors (if non-NULL) defines the error handling. It defaults

to "strict".

If byteorder is non-NULL, the decoder starts decoding using the

given byte order:

*byteorder == -1: little endian

*byteorder == 0: native order

*byteorder == 1: big endian

In native mode, the first four bytes of the stream are checked for a

BOM mark. If found, the BOM mark is analysed, the byte order

adjusted and the BOM skipped. In the other modes, no BOM mark

interpretation is done. After completion, *byteorder is set to the

current byte order at the end of input data.

If byteorder is NULL, the codec starts in native order mode.

PyAPI_FUNC(PyObject*) PyUnicode_DecodeUTF32(

const char *string, /* UTF-32 encoded string */

Py_ssize_t length, /* size of string */

const char *errors, /* error handling */

int *byteorder /* pointer to byteorder to use

0=native;-1=LE,1=BE; updated on

exit */

);

PyAPI_FUNC(PyObject*) PyUnicode_DecodeUTF32Stateful(

const char *string, /* UTF-32 encoded string */

Py_ssize_t length, /* size of string */

const char *errors, /* error handling */

int *byteorder, /* pointer to byteorder to use

0=native;-1=LE,1=BE; updated on

exit */

Py_ssize_t *consumed /* bytes consumed */

);

/* Returns a Python string using the UTF-32 encoding in native byte

order. The string always starts with a BOM mark. */

PyAPI_FUNC(PyObject*) PyUnicode_AsUTF32String(

PyObject *unicode /* Unicode object */

);

/* Returns a Python string object holding the UTF-32 encoded value of

the Unicode data.

If byteorder is not 0, output is written according to the following

byte order:

byteorder == -1: little endian

byteorder == 0: native byte order (writes a BOM mark)

byteorder == 1: big endian

If byteorder is 0, the output string will always start with the

Unicode BOM mark (U+FEFF). In the other two modes, no BOM mark is

prepended.

/* --- UTF-16 Codecs ------------------------------------------------------ */

/* Decodes length bytes from a UTF-16 encoded buffer string and returns

the corresponding Unicode object.

errors (if non-NULL) defines the error handling. It defaults

to "strict".

If byteorder is non-NULL, the decoder starts decoding using the

given byte order:

*byteorder == -1: little endian

*byteorder == 0: native order

*byteorder == 1: big endian

In native mode, the first two bytes of the stream are checked for a

BOM mark. If found, the BOM mark is analysed, the byte order

adjusted and the BOM skipped. In the other modes, no BOM mark

interpretation is done. After completion, *byteorder is set to the

current byte order at the end of input data.

If byteorder is NULL, the codec starts in native order mode.

PyAPI_FUNC(PyObject*) PyUnicode_DecodeUTF16(

const char *string, /* UTF-16 encoded string */

Py_ssize_t length, /* size of string */

const char *errors, /* error handling */

int *byteorder /* pointer to byteorder to use

0=native;-1=LE,1=BE; updated on

exit */

);

PyAPI_FUNC(PyObject*) PyUnicode_DecodeUTF16Stateful(

const char *string, /* UTF-16 encoded string */

Py_ssize_t length, /* size of string */

const char *errors, /* error handling */

int *byteorder, /* pointer to byteorder to use

0=native;-1=LE,1=BE; updated on

exit */

Py_ssize_t *consumed /* bytes consumed */

);

/* Returns a Python string using the UTF-16 encoding in native byte

order. The string always starts with a BOM mark. */

PyAPI_FUNC(PyObject*) PyUnicode_AsUTF16String(

PyObject *unicode /* Unicode object */

);

/* --- Unicode-Escape Codecs ---------------------------------------------- */

PyAPI_FUNC(PyObject*) PyUnicode_DecodeUnicodeEscape(

const char *string, /* Unicode-Escape encoded string */

Py_ssize_t length, /* size of string */

const char *errors /* error handling */

);

PyAPI_FUNC(PyObject*) PyUnicode_AsUnicodeEscapeString(

PyObject *unicode /* Unicode object */

);

/* --- Raw-Unicode-Escape Codecs ------------------------------------------ */

PyAPI_FUNC(PyObject*) PyUnicode_DecodeRawUnicodeEscape(

const char *string, /* Raw-Unicode-Escape encoded string */

Py_ssize_t length, /* size of string */

const char *errors /* error handling */

);

PyAPI_FUNC(PyObject*) PyUnicode_AsRawUnicodeEscapeString(

PyObject *unicode /* Unicode object */

);

/* --- Latin-1 Codecs -----------------------------------------------------

Note: Latin-1 corresponds to the first 256 Unicode ordinals. */

PyAPI_FUNC(PyObject*) PyUnicode_DecodeLatin1(

const char *string, /* Latin-1 encoded string */

Py_ssize_t length, /* size of string */

const char *errors /* error handling */

);

PyAPI_FUNC(PyObject*) PyUnicode_AsLatin1String(

PyObject *unicode /* Unicode object */

);

/* --- ASCII Codecs -------------------------------------------------------

Only 7-bit ASCII data is expected. All other codes generate errors.

PyAPI_FUNC(PyObject*) PyUnicode_DecodeASCII(

const char *string, /* ASCII encoded string */

Py_ssize_t length, /* size of string */

const char *errors /* error handling */

);

PyAPI_FUNC(PyObject*) PyUnicode_AsASCIIString(

PyObject *unicode /* Unicode object */

);

/* --- Character Map Codecs -----------------------------------------------

This codec uses mappings to encode and decode characters.

Decoding mappings must map byte ordinals (integers in the range from 0 to

255) to Unicode strings, integers (which are then interpreted as Unicode

ordinals) or None. Unmapped data bytes (ones which cause a LookupError)

as well as mapped to None, 0xFFFE or '\ufffe' are treated as "undefined

mapping" and cause an error.

Encoding mappings must map Unicode ordinal integers to bytes objects,

integers in the range from 0 to 255 or None. Unmapped character

ordinals (ones which cause a LookupError) as well as mapped to

None are treated as "undefined mapping" and cause an error.

PyAPI_FUNC(PyObject*) PyUnicode_DecodeCharmap(

const char *string, /* Encoded string */

Py_ssize_t length, /* size of string */

PyObject *mapping, /* decoding mapping */

const char *errors /* error handling */

);

PyAPI_FUNC(PyObject*) PyUnicode_AsCharmapString(

PyObject *unicode, /* Unicode object */

PyObject *mapping /* encoding mapping */

);

/* --- MBCS codecs for Windows -------------------------------------------- */

#ifdef MS_WINDOWS

PyAPI_FUNC(PyObject*) PyUnicode_DecodeMBCS(

const char *string, /* MBCS encoded string */

Py_ssize_t length, /* size of string */

const char *errors /* error handling */

);

PyAPI_FUNC(PyObject*) PyUnicode_DecodeMBCSStateful(

const char *string, /* MBCS encoded string */

Py_ssize_t length, /* size of string */

const char *errors, /* error handling */

Py_ssize_t *consumed /* bytes consumed */

);

#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000

PyAPI_FUNC(PyObject*) PyUnicode_DecodeCodePageStateful(

int code_page, /* code page number */

const char *string, /* encoded string */

Py_ssize_t length, /* size of string */

const char *errors, /* error handling */

Py_ssize_t *consumed /* bytes consumed */

);

#endif

PyAPI_FUNC(PyObject*) PyUnicode_AsMBCSString(

PyObject *unicode /* Unicode object */

);

#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000

PyAPI_FUNC(PyObject*) PyUnicode_EncodeCodePage(

int code_page, /* code page number */

PyObject *unicode, /* Unicode object */

const char *errors /* error handling */

);

#endif

#endif /* MS_WINDOWS */

/* --- Locale encoding --------------------------------------------------- */

#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000

/* Decode a string from the current locale encoding. The decoder is strict if

*surrogateescape* is equal to zero, otherwise it uses the 'surrogateescape'

error handler (PEP 383) to escape undecodable bytes. If a byte sequence can

be decoded as a surrogate character and *surrogateescape* is not equal to

zero, the byte sequence is escaped using the 'surrogateescape' error handler

instead of being decoded. *str* must end with a null character but cannot

contain embedded null characters. */

PyAPI_FUNC(PyObject*) PyUnicode_DecodeLocaleAndSize(

const char *str,

Py_ssize_t len,

const char *errors);

/* Similar to PyUnicode_DecodeLocaleAndSize(), but compute the string

length using strlen(). */

PyAPI_FUNC(PyObject*) PyUnicode_DecodeLocale(

const char *str,

const char *errors);

/* Encode a Unicode object to the current locale encoding. The encoder is

strict is *surrogateescape* is equal to zero, otherwise the

"surrogateescape" error handler is used. Return a bytes object. The string

cannot contain embedded null characters. */

PyAPI_FUNC(PyObject*) PyUnicode_EncodeLocale(

PyObject *unicode,

const char *errors

);

#endif

/* --- File system encoding ---------------------------------------------- */

/* ParseTuple converter: encode str objects to bytes using

PyUnicode_EncodeFSDefault(); bytes objects are output as-is. */

PyAPI_FUNC(int) PyUnicode_FSConverter(PyObject*, void*);

/* ParseTuple converter: decode bytes objects to unicode using

PyUnicode_DecodeFSDefaultAndSize(); str objects are output as-is. */

PyAPI_FUNC(int) PyUnicode_FSDecoder(PyObject*, void*);

/* Decode a null-terminated string from the Python filesystem encoding

and error handler.

If the string length is known, use PyUnicode_DecodeFSDefaultAndSize(). */

PyAPI_FUNC(PyObject*) PyUnicode_DecodeFSDefault(

const char *s /* encoded string */

);

/* Decode a string from the Python filesystem encoding and error handler. */

PyAPI_FUNC(PyObject*) PyUnicode_DecodeFSDefaultAndSize(

const char *s, /* encoded string */

Py_ssize_t size /* size */

);

/* Encode a Unicode object to the Python filesystem encoding and error handler.

Return bytes. */

PyAPI_FUNC(PyObject*) PyUnicode_EncodeFSDefault(

PyObject *unicode

);

/* --- Methods & Slots ----------------------------------------------------

These are capable of handling Unicode objects and strings on input

(we refer to them as strings in the descriptions) and return

Unicode objects or integers as appropriate. */

/* Concat two strings giving a new Unicode string. */

PyAPI_FUNC(PyObject*) PyUnicode_Concat(

PyObject *left, /* Left string */

PyObject *right /* Right string */

);

/* Concat two strings and put the result in *pleft

(sets *pleft to NULL on error) */

PyAPI_FUNC(void) PyUnicode_Append(

PyObject **pleft, /* Pointer to left string */

PyObject *right /* Right string */

);

/* Concat two strings, put the result in *pleft and drop the right object

(sets *pleft to NULL on error) */

PyAPI_FUNC(void) PyUnicode_AppendAndDel(

PyObject **pleft, /* Pointer to left string */

PyObject *right /* Right string */

);

/* Split a string giving a list of Unicode strings.

If sep is NULL, splitting will be done at all whitespace

substrings. Otherwise, splits occur at the given separator.

At most maxsplit splits will be done. If negative, no limit is set.

Separators are not included in the resulting list.

PyAPI_FUNC(PyObject*) PyUnicode_Split(

PyObject *s, /* String to split */

PyObject *sep, /* String separator */

Py_ssize_t maxsplit /* Maxsplit count */

);

/* Dito, but split at line breaks.

CRLF is considered to be one line break. Line breaks are not

included in the resulting list. */

PyAPI_FUNC(PyObject*) PyUnicode_Splitlines(

PyObject *s, /* String to split */

int keepends /* If true, line end markers are included */

);

/* Partition a string using a given separator. */

PyAPI_FUNC(PyObject*) PyUnicode_Partition(

PyObject *s, /* String to partition */

PyObject *sep /* String separator */

);

/* Partition a string using a given separator, searching from the end of the

string. */

PyAPI_FUNC(PyObject*) PyUnicode_RPartition(

PyObject *s, /* String to partition */

PyObject *sep /* String separator */

);

/* Split a string giving a list of Unicode strings.

If sep is NULL, splitting will be done at all whitespace

substrings. Otherwise, splits occur at the given separator.

At most maxsplit splits will be done. But unlike PyUnicode_Split

PyUnicode_RSplit splits from the end of the string. If negative,

no limit is set.

Separators are not included in the resulting list.

PyAPI_FUNC(PyObject*) PyUnicode_RSplit(

PyObject *s, /* String to split */

PyObject *sep, /* String separator */

Py_ssize_t maxsplit /* Maxsplit count */

);

/* Translate a string by applying a character mapping table to it and

return the resulting Unicode object.

The mapping table must map Unicode ordinal integers to Unicode strings,

Unicode ordinal integers or None (causing deletion of the character).

Mapping tables may be dictionaries or sequences. Unmapped character

ordinals (ones which cause a LookupError) are left untouched and

are copied as-is.

PyAPI_FUNC(PyObject *) PyUnicode_Translate(

PyObject *str, /* String */

PyObject *table, /* Translate table */

const char *errors /* error handling */

);

/* Join a sequence of strings using the given separator and return

the resulting Unicode string. */

PyAPI_FUNC(PyObject*) PyUnicode_Join(

PyObject *separator, /* Separator string */

PyObject *seq /* Sequence object */

);

/* Return 1 if substr matches str[start:end] at the given tail end, 0

otherwise. */

PyAPI_FUNC(Py_ssize_t) PyUnicode_Tailmatch(

PyObject *str, /* String */

PyObject *substr, /* Prefix or Suffix string */

Py_ssize_t start, /* Start index */

Py_ssize_t end, /* Stop index */

int direction /* Tail end: -1 prefix, +1 suffix */

);

/* Return the first position of substr in str[start:end] using the

given search direction or -1 if not found. -2 is returned in case

an error occurred and an exception is set. */

PyAPI_FUNC(Py_ssize_t) PyUnicode_Find(

PyObject *str, /* String */

PyObject *substr, /* Substring to find */

Py_ssize_t start, /* Start index */

Py_ssize_t end, /* Stop index */

int direction /* Find direction: +1 forward, -1 backward */

);

#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000

/* Like PyUnicode_Find, but search for single character only. */

PyAPI_FUNC(Py_ssize_t) PyUnicode_FindChar(

PyObject *str,

Py_UCS4 ch,

Py_ssize_t start,

Py_ssize_t end,

int direction

);

#endif

/* Count the number of occurrences of substr in str[start:end]. */

PyAPI_FUNC(Py_ssize_t) PyUnicode_Count(

PyObject *str, /* String */

PyObject *substr, /* Substring to count */

Py_ssize_t start, /* Start index */

Py_ssize_t end /* Stop index */

);

/* Replace at most maxcount occurrences of substr in str with replstr

and return the resulting Unicode object. */

PyAPI_FUNC(PyObject *) PyUnicode_Replace(

PyObject *str, /* String */

PyObject *substr, /* Substring to find */

PyObject *replstr, /* Substring to replace */

Py_ssize_t maxcount /* Max. number of replacements to apply;

-1 = all */

);

/* Compare two strings and return -1, 0, 1 for less than, equal,

greater than resp.

Raise an exception and return -1 on error. */

PyAPI_FUNC(int) PyUnicode_Compare(

PyObject *left, /* Left string */

PyObject *right /* Right string */

);

/* Compare a Unicode object with C string and return -1, 0, 1 for less than,

equal, and greater than, respectively. It is best to pass only

ASCII-encoded strings, but the function interprets the input string as

ISO-8859-1 if it contains non-ASCII characters.

This function does not raise exceptions. */

PyAPI_FUNC(int) PyUnicode_CompareWithASCIIString(

PyObject *left,

const char *right /* ASCII-encoded string */

);

#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x030D0000

/* Compare a Unicode object with UTF-8 encoded C string.

Return 1 if they are equal, or 0 otherwise.

This function does not raise exceptions. */

PyAPI_FUNC(int) PyUnicode_EqualToUTF8(PyObject *, const char *);

PyAPI_FUNC(int) PyUnicode_EqualToUTF8AndSize(PyObject *, const char *, Py_ssize_t);

#endif

#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x030e0000

PyAPI_FUNC(int) PyUnicode_Equal(PyObject *str1, PyObject *str2);

#endif

/* Rich compare two strings and return one of the following:

- NULL in case an exception was raised

- Py_True or Py_False for successful comparisons

- Py_NotImplemented in case the type combination is unknown

Possible values for op:

Py_GT, Py_GE, Py_EQ, Py_NE, Py_LT, Py_LE

PyAPI_FUNC(PyObject *) PyUnicode_RichCompare(

PyObject *left, /* Left string */

PyObject *right, /* Right string */

int op /* Operation: Py_EQ, Py_NE, Py_GT, etc. */

);

/* Apply an argument tuple or dictionary to a format string and return

the resulting Unicode string. */

PyAPI_FUNC(PyObject *) PyUnicode_Format(

PyObject *format, /* Format string */

PyObject *args /* Argument tuple or dictionary */

);

/* Checks whether element is contained in container and return 1/0

accordingly.

element has to coerce to a one element Unicode string. -1 is

returned in case of an error. */

PyAPI_FUNC(int) PyUnicode_Contains(

PyObject *container, /* Container string */

PyObject *element /* Element string */

);

/* Checks whether argument is a valid identifier. */

PyAPI_FUNC(int) PyUnicode_IsIdentifier(PyObject *s);

/* === Characters Type APIs =============================================== */

#ifndef Py_LIMITED_API

# define Py_CPYTHON_UNICODEOBJECT_H

# include "cpython/unicodeobject.h"

# undef Py_CPYTHON_UNICODEOBJECT_H

#endif

#ifdef __cplusplus

}

#endif

#endif /* !Py_UNICODEOBJECT_H */

cpython/Include/unicodeobject.h at main · faster-cpython/cpython · GitHub

Uh oh!

Expand file tree

Breadcrumbs

unicodeobject.h

Latest commit

History

Breadcrumbs

unicodeobject.h

File metadata and controls