File: /Users/paulross/dev/Python-3.6.2/Include/unicodeobject.h

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       1: #ifndef Py_UNICODEOBJECT_H
       2: #define Py_UNICODEOBJECT_H
       3: 
       4: #include <stdarg.h>
       5: 
       6: /*
       7: 
       8: Unicode implementation based on original code by Fredrik Lundh,
       9: modified by Marc-Andre Lemburg (mal@lemburg.com) according to the
      10: Unicode Integration Proposal. (See
      11: http://www.egenix.com/files/python/unicode-proposal.txt).
      12: 
      13: Copyright (c) Corporation for National Research Initiatives.
      14: 
      15: 
      16:  Original header:
      17:  --------------------------------------------------------------------
      18: 
      19:  * Yet another Unicode string type for Python.  This type supports the
      20:  * 16-bit Basic Multilingual Plane (BMP) only.
      21:  *
      22:  * Written by Fredrik Lundh, January 1999.
      23:  *
      24:  * Copyright (c) 1999 by Secret Labs AB.
      25:  * Copyright (c) 1999 by Fredrik Lundh.
      26:  *
      27:  * fredrik@pythonware.com
      28:  * http://www.pythonware.com
      29:  *
      30:  * --------------------------------------------------------------------
      31:  * This Unicode String Type is
      32:  *
      33:  * Copyright (c) 1999 by Secret Labs AB
      34:  * Copyright (c) 1999 by Fredrik Lundh
      35:  *
      36:  * By obtaining, using, and/or copying this software and/or its
      37:  * associated documentation, you agree that you have read, understood,
      38:  * and will comply with the following terms and conditions:
      39:  *
      40:  * Permission to use, copy, modify, and distribute this software and its
      41:  * associated documentation for any purpose and without fee is hereby
      42:  * granted, provided that the above copyright notice appears in all
      43:  * copies, and that both that copyright notice and this permission notice
      44:  * appear in supporting documentation, and that the name of Secret Labs
      45:  * AB or the author not be used in advertising or publicity pertaining to
      46:  * distribution of the software without specific, written prior
      47:  * permission.
      48:  *
      49:  * SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO
      50:  * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
      51:  * FITNESS.  IN NO EVENT SHALL SECRET LABS AB OR THE AUTHOR BE LIABLE FOR
      52:  * ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
      53:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
      54:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
      55:  * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
      56:  * -------------------------------------------------------------------- */
      57: 
      58: #include <ctype.h>
      59: 
      60: /* === Internal API ======================================================= */
      61: 
      62: /* --- Internal Unicode Format -------------------------------------------- */
      63: 
      64: /* Python 3.x requires unicode */
      65: #define Py_USING_UNICODE
      66: 
      67: #ifndef SIZEOF_WCHAR_T
      68: #error Must define SIZEOF_WCHAR_T
      69: #endif
      70: 
      71: #define Py_UNICODE_SIZE SIZEOF_WCHAR_T
      72: 
      73: /* If wchar_t can be used for UCS-4 storage, set Py_UNICODE_WIDE.
      74:    Otherwise, Unicode strings are stored as UCS-2 (with limited support
      75:    for UTF-16) */
      76: 
      77: #if Py_UNICODE_SIZE >= 4
      78: #define Py_UNICODE_WIDE
      79: #endif
      80: 
      81: /* Set these flags if the platform has "wchar.h" and the
      82:    wchar_t type is a 16-bit unsigned type */
      83: /* #define HAVE_WCHAR_H */
      84: /* #define HAVE_USABLE_WCHAR_T */
      85: 
      86: /* Py_UNICODE was the native Unicode storage format (code unit) used by
      87:    Python and represents a single Unicode element in the Unicode type.
      88:    With PEP 393, Py_UNICODE is deprecated and replaced with a
      89:    typedef to wchar_t. */
      90: 
      91: #ifndef Py_LIMITED_API
      92: #define PY_UNICODE_TYPE wchar_t
      93: typedef wchar_t Py_UNICODE;
      94: #endif
      95: 
      96: /* If the compiler provides a wchar_t type we try to support it
      97:    through the interface functions PyUnicode_FromWideChar(),
      98:    PyUnicode_AsWideChar() and PyUnicode_AsWideCharString(). */
      99: 
     100: #ifdef HAVE_USABLE_WCHAR_T
     101: # ifndef HAVE_WCHAR_H
     102: #  define HAVE_WCHAR_H
     103: # endif
     104: #endif
     105: 
     106: #ifdef HAVE_WCHAR_H
     107: /* Work around a cosmetic bug in BSDI 4.x wchar.h; thanks to Thomas Wouters */
     108: # ifdef _HAVE_BSDI
     109: #  include <time.h>
     110: # endif
     111: #  include <wchar.h>
     112: #endif
     113: 
     114: /* Py_UCS4 and Py_UCS2 are typedefs for the respective
     115:    unicode representations. */
     116: typedef uint32_t Py_UCS4;
     117: typedef uint16_t Py_UCS2;
     118: typedef uint8_t Py_UCS1;
     119: 
     120: /* --- Internal Unicode Operations ---------------------------------------- */
     121: 
     122: /* Since splitting on whitespace is an important use case, and
     123:    whitespace in most situations is solely ASCII whitespace, we
     124:    optimize for the common case by using a quick look-up table
     125:    _Py_ascii_whitespace (see below) with an inlined check.
     126: 
     127:  */
     128: #ifndef Py_LIMITED_API
     129: #define Py_UNICODE_ISSPACE(ch) \
     130:     ((ch) < 128U ? _Py_ascii_whitespace[(ch)] : _PyUnicode_IsWhitespace(ch))
     131: 
     132: #define Py_UNICODE_ISLOWER(ch) _PyUnicode_IsLowercase(ch)
     133: #define Py_UNICODE_ISUPPER(ch) _PyUnicode_IsUppercase(ch)
     134: #define Py_UNICODE_ISTITLE(ch) _PyUnicode_IsTitlecase(ch)
     135: #define Py_UNICODE_ISLINEBREAK(ch) _PyUnicode_IsLinebreak(ch)
     136: 
     137: #define Py_UNICODE_TOLOWER(ch) _PyUnicode_ToLowercase(ch)
     138: #define Py_UNICODE_TOUPPER(ch) _PyUnicode_ToUppercase(ch)
     139: #define Py_UNICODE_TOTITLE(ch) _PyUnicode_ToTitlecase(ch)
     140: 
     141: #define Py_UNICODE_ISDECIMAL(ch) _PyUnicode_IsDecimalDigit(ch)
     142: #define Py_UNICODE_ISDIGIT(ch) _PyUnicode_IsDigit(ch)
     143: #define Py_UNICODE_ISNUMERIC(ch) _PyUnicode_IsNumeric(ch)
     144: #define Py_UNICODE_ISPRINTABLE(ch) _PyUnicode_IsPrintable(ch)
     145: 
     146: #define Py_UNICODE_TODECIMAL(ch) _PyUnicode_ToDecimalDigit(ch)
     147: #define Py_UNICODE_TODIGIT(ch) _PyUnicode_ToDigit(ch)
     148: #define Py_UNICODE_TONUMERIC(ch) _PyUnicode_ToNumeric(ch)
     149: 
     150: #define Py_UNICODE_ISALPHA(ch) _PyUnicode_IsAlpha(ch)
     151: 
     152: #define Py_UNICODE_ISALNUM(ch) \
     153:        (Py_UNICODE_ISALPHA(ch) || \
     154:     Py_UNICODE_ISDECIMAL(ch) || \
     155:     Py_UNICODE_ISDIGIT(ch) || \
     156:     Py_UNICODE_ISNUMERIC(ch))
     157: 
     158: #define Py_UNICODE_COPY(target, source, length) \
     159:     memcpy((target), (source), (length)*sizeof(Py_UNICODE))
     160: 
     161: #define Py_UNICODE_FILL(target, value, length) \
     162:     do {Py_ssize_t i_; Py_UNICODE *t_ = (target); Py_UNICODE v_ = (value);\
        for (i_ = 0; i_ < (length); i_++) t_[i_] = v_;\
    } while (0)
     165: 
     166: /* macros to work with surrogates */
     167: #define Py_UNICODE_IS_SURROGATE(ch) (0xD800 <= (ch) && (ch) <= 0xDFFF)
     168: #define Py_UNICODE_IS_HIGH_SURROGATE(ch) (0xD800 <= (ch) && (ch) <= 0xDBFF)
     169: #define Py_UNICODE_IS_LOW_SURROGATE(ch) (0xDC00 <= (ch) && (ch) <= 0xDFFF)
     170: /* Join two surrogate characters and return a single Py_UCS4 value. */
     171: #define Py_UNICODE_JOIN_SURROGATES(high, low)  \
     172:     (((((Py_UCS4)(high) & 0x03FF) << 10) |      \
     173:       ((Py_UCS4)(low) & 0x03FF)) + 0x10000)
     174: /* high surrogate = top 10 bits added to D800 */
     175: #define Py_UNICODE_HIGH_SURROGATE(ch) (0xD800 - (0x10000 >> 10) + ((ch) >> 10))
     176: /* low surrogate = bottom 10 bits added to DC00 */
     177: #define Py_UNICODE_LOW_SURROGATE(ch) (0xDC00 + ((ch) & 0x3FF))
     178: 
     179: /* Check if substring matches at given offset.  The offset must be
     180:    valid, and the substring must not be empty. */
     181: 
     182: #define Py_UNICODE_MATCH(string, offset, substring) \
     183:     ((*((string)->wstr + (offset)) == *((substring)->wstr)) && \
     184:      ((*((string)->wstr + (offset) + (substring)->wstr_length-1) == *((substring)->wstr + (substring)->wstr_length-1))) && \
     185:      !memcmp((string)->wstr + (offset), (substring)->wstr, (substring)->wstr_length*sizeof(Py_UNICODE)))
     186: 
     187: #endif /* Py_LIMITED_API */
     188: 
     189: #ifdef __cplusplus
     190: extern "C" {
     191: #endif
     192: 
     193: /* --- Unicode Type ------------------------------------------------------- */
     194: 
     195: #ifndef Py_LIMITED_API
     196: 
     197: /* ASCII-only strings created through PyUnicode_New use the PyASCIIObject
     198:    structure. state.ascii and state.compact are set, and the data
     199:    immediately follow the structure. utf8_length and wstr_length can be found
     200:    in the length field; the utf8 pointer is equal to the data pointer. */
     201: typedef struct {
     202:     /* There are 4 forms of Unicode strings:
     203: 
     204:        - compact ascii:
     205: 
     206:          * structure = PyASCIIObject
     207:          * test: PyUnicode_IS_COMPACT_ASCII(op)
     208:          * kind = PyUnicode_1BYTE_KIND
     209:          * compact = 1
     210:          * ascii = 1
     211:          * ready = 1
     212:          * (length is the length of the utf8 and wstr strings)
     213:          * (data starts just after the structure)
     214:          * (since ASCII is decoded from UTF-8, the utf8 string are the data)
     215: 
     216:        - compact:
     217: 
     218:          * structure = PyCompactUnicodeObject
     219:          * test: PyUnicode_IS_COMPACT(op) && !PyUnicode_IS_ASCII(op)
     220:          * kind = PyUnicode_1BYTE_KIND, PyUnicode_2BYTE_KIND or
     221:            PyUnicode_4BYTE_KIND
     222:          * compact = 1
     223:          * ready = 1
     224:          * ascii = 0
     225:          * utf8 is not shared with data
     226:          * utf8_length = 0 if utf8 is NULL
     227:          * wstr is shared with data and wstr_length=length
     228:            if kind=PyUnicode_2BYTE_KIND and sizeof(wchar_t)=2
     229:            or if kind=PyUnicode_4BYTE_KIND and sizeof(wchar_t)=4
     230:          * wstr_length = 0 if wstr is NULL
     231:          * (data starts just after the structure)
     232: 
     233:        - legacy string, not ready:
     234: 
     235:          * structure = PyUnicodeObject
     236:          * test: kind == PyUnicode_WCHAR_KIND
     237:          * length = 0 (use wstr_length)
     238:          * hash = -1
     239:          * kind = PyUnicode_WCHAR_KIND
     240:          * compact = 0
     241:          * ascii = 0
     242:          * ready = 0
     243:          * interned = SSTATE_NOT_INTERNED
     244:          * wstr is not NULL
     245:          * data.any is NULL
     246:          * utf8 is NULL
     247:          * utf8_length = 0
     248: 
     249:        - legacy string, ready:
     250: 
     251:          * structure = PyUnicodeObject structure
     252:          * test: !PyUnicode_IS_COMPACT(op) && kind != PyUnicode_WCHAR_KIND
     253:          * kind = PyUnicode_1BYTE_KIND, PyUnicode_2BYTE_KIND or
     254:            PyUnicode_4BYTE_KIND
     255:          * compact = 0
     256:          * ready = 1
     257:          * data.any is not NULL
     258:          * utf8 is shared and utf8_length = length with data.any if ascii = 1
     259:          * utf8_length = 0 if utf8 is NULL
     260:          * wstr is shared with data.any and wstr_length = length
     261:            if kind=PyUnicode_2BYTE_KIND and sizeof(wchar_t)=2
     262:            or if kind=PyUnicode_4BYTE_KIND and sizeof(wchar_4)=4
     263:          * wstr_length = 0 if wstr is NULL
     264: 
     265:        Compact strings use only one memory block (structure + characters),
     266:        whereas legacy strings use one block for the structure and one block
     267:        for characters.
     268: 
     269:        Legacy strings are created by PyUnicode_FromUnicode() and
     270:        PyUnicode_FromStringAndSize(NULL, size) functions. They become ready
     271:        when PyUnicode_READY() is called.
     272: 
     273:        See also _PyUnicode_CheckConsistency().
     274:     */
     275:     PyObject_HEAD
     276:     Py_ssize_t length;          /* Number of code points in the string */
     277:     Py_hash_t hash;             /* Hash value; -1 if not set */
     278:     struct {
     279:         /*
     280:            SSTATE_NOT_INTERNED (0)
     281:            SSTATE_INTERNED_MORTAL (1)
     282:            SSTATE_INTERNED_IMMORTAL (2)
     283: 
     284:            If interned != SSTATE_NOT_INTERNED, the two references from the
     285:            dictionary to this object are *not* counted in ob_refcnt.
     286:          */
     287:         unsigned int interned:2;
     288:         /* Character size:
     289: 
     290:            - PyUnicode_WCHAR_KIND (0):
     291: 
     292:              * character type = wchar_t (16 or 32 bits, depending on the
     293:                platform)
     294: 
     295:            - PyUnicode_1BYTE_KIND (1):
     296: 
     297:              * character type = Py_UCS1 (8 bits, unsigned)
     298:              * all characters are in the range U+0000-U+00FF (latin1)
     299:              * if ascii is set, all characters are in the range U+0000-U+007F
     300:                (ASCII), otherwise at least one character is in the range
     301:                U+0080-U+00FF
     302: 
     303:            - PyUnicode_2BYTE_KIND (2):
     304: 
     305:              * character type = Py_UCS2 (16 bits, unsigned)
     306:              * all characters are in the range U+0000-U+FFFF (BMP)
     307:              * at least one character is in the range U+0100-U+FFFF
     308: 
     309:            - PyUnicode_4BYTE_KIND (4):
     310: 
     311:              * character type = Py_UCS4 (32 bits, unsigned)
     312:              * all characters are in the range U+0000-U+10FFFF
     313:              * at least one character is in the range U+10000-U+10FFFF
     314:          */
     315:         unsigned int kind:3;
     316:         /* Compact is with respect to the allocation scheme. Compact unicode
     317:            objects only require one memory block while non-compact objects use
     318:            one block for the PyUnicodeObject struct and another for its data
     319:            buffer. */
     320:         unsigned int compact:1;
     321:         /* The string only contains characters in the range U+0000-U+007F (ASCII)
     322:            and the kind is PyUnicode_1BYTE_KIND. If ascii is set and compact is
     323:            set, use the PyASCIIObject structure. */
     324:         unsigned int ascii:1;
     325:         /* The ready flag indicates whether the object layout is initialized
     326:            completely. This means that this is either a compact object, or
     327:            the data pointer is filled out. The bit is redundant, and helps
     328:            to minimize the test in PyUnicode_IS_READY(). */
     329:         unsigned int ready:1;
     330:         /* Padding to ensure that PyUnicode_DATA() is always aligned to
     331:            4 bytes (see issue #19537 on m68k). */
     332:         unsigned int :24;
     333:     } state;
     334:     wchar_t *wstr;              /* wchar_t representation (null-terminated) */
     335: } PyASCIIObject;
     336: 
     337: /* Non-ASCII strings allocated through PyUnicode_New use the
     338:    PyCompactUnicodeObject structure. state.compact is set, and the data
     339:    immediately follow the structure. */
     340: typedef struct {
     341:     PyASCIIObject _base;
     342:     Py_ssize_t utf8_length;     /* Number of bytes in utf8, excluding the
     343:                                  * terminating \0. */
     344:     char *utf8;                 /* UTF-8 representation (null-terminated) */
     345:     Py_ssize_t wstr_length;     /* Number of code points in wstr, possible
     346:                                  * surrogates count as two code points. */
     347: } PyCompactUnicodeObject;
     348: 
     349: /* Strings allocated through PyUnicode_FromUnicode(NULL, len) use the
     350:    PyUnicodeObject structure. The actual string data is initially in the wstr
     351:    block, and copied into the data block using _PyUnicode_Ready. */
     352: typedef struct {
     353:     PyCompactUnicodeObject _base;
     354:     union {
     355:         void *any;
     356:         Py_UCS1 *latin1;
     357:         Py_UCS2 *ucs2;
     358:         Py_UCS4 *ucs4;
     359:     } data;                     /* Canonical, smallest-form Unicode buffer */
     360: } PyUnicodeObject;
     361: #endif
     362: 
     363: PyAPI_DATA(PyTypeObject) PyUnicode_Type;
     364: PyAPI_DATA(PyTypeObject) PyUnicodeIter_Type;
     365: 
     366: #define PyUnicode_Check(op) \
     367:                  PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_UNICODE_SUBCLASS)
     368: #define PyUnicode_CheckExact(op) (Py_TYPE(op) == &PyUnicode_Type)
     369: 
     370: /* Fast access macros */
     371: #ifndef Py_LIMITED_API
     372: 
     373: #define PyUnicode_WSTR_LENGTH(op) \
     374:     (PyUnicode_IS_COMPACT_ASCII(op) ?                  \
     375:      ((PyASCIIObject*)op)->length :                    \
     376:      ((PyCompactUnicodeObject*)op)->wstr_length)
     377: 
     378: /* Returns the deprecated Py_UNICODE representation's size in code units
     379:    (this includes surrogate pairs as 2 units).
     380:    If the Py_UNICODE representation is not available, it will be computed
     381:    on request.  Use PyUnicode_GET_LENGTH() for the length in code points. */
     382: 
     383: #define PyUnicode_GET_SIZE(op)                       \
     384:     (assert(PyUnicode_Check(op)),                    \
     385:      (((PyASCIIObject *)(op))->wstr) ?               \
     386:       PyUnicode_WSTR_LENGTH(op) :                    \
     387:       ((void)PyUnicode_AsUnicode((PyObject *)(op)),  \
     388:        assert(((PyASCIIObject *)(op))->wstr),        \
     389:        PyUnicode_WSTR_LENGTH(op)))
     390: 
     391: #define PyUnicode_GET_DATA_SIZE(op) \
     392:     (PyUnicode_GET_SIZE(op) * Py_UNICODE_SIZE)
     393: 
     394: /* Alias for PyUnicode_AsUnicode().  This will create a wchar_t/Py_UNICODE
     395:    representation on demand.  Using this macro is very inefficient now,
     396:    try to port your code to use the new PyUnicode_*BYTE_DATA() macros or
     397:    use PyUnicode_WRITE() and PyUnicode_READ(). */
     398: 
     399: #define PyUnicode_AS_UNICODE(op) \
     400:     (assert(PyUnicode_Check(op)), \
     401:      (((PyASCIIObject *)(op))->wstr) ? (((PyASCIIObject *)(op))->wstr) : \
     402:       PyUnicode_AsUnicode((PyObject *)(op)))
     403: 
     404: #define PyUnicode_AS_DATA(op) \
     405:     ((const char *)(PyUnicode_AS_UNICODE(op)))
     406: 
     407: 
     408: /* --- Flexible String Representation Helper Macros (PEP 393) -------------- */
     409: 
     410: /* Values for PyASCIIObject.state: */
     411: 
     412: /* Interning state. */
     413: #define SSTATE_NOT_INTERNED 0
     414: #define SSTATE_INTERNED_MORTAL 1
     415: #define SSTATE_INTERNED_IMMORTAL 2
     416: 
     417: /* Return true if the string contains only ASCII characters, or 0 if not. The
     418:    string may be compact (PyUnicode_IS_COMPACT_ASCII) or not, but must be
     419:    ready. */
     420: #define PyUnicode_IS_ASCII(op)                   \
     421:     (assert(PyUnicode_Check(op)),                \
     422:      assert(PyUnicode_IS_READY(op)),             \
     423:      ((PyASCIIObject*)op)->state.ascii)
     424: 
     425: /* Return true if the string is compact or 0 if not.
     426:    No type checks or Ready calls are performed. */
     427: #define PyUnicode_IS_COMPACT(op) \
     428:     (((PyASCIIObject*)(op))->state.compact)
     429: 
     430: /* Return true if the string is a compact ASCII string (use PyASCIIObject
     431:    structure), or 0 if not.  No type checks or Ready calls are performed. */
     432: #define PyUnicode_IS_COMPACT_ASCII(op)                 \
     433:     (((PyASCIIObject*)op)->state.ascii && PyUnicode_IS_COMPACT(op))
     434: 
     435: enum PyUnicode_Kind {
     436: /* String contains only wstr byte characters.  This is only possible
     437:    when the string was created with a legacy API and _PyUnicode_Ready()
     438:    has not been called yet.  */
     439:     PyUnicode_WCHAR_KIND = 0,
     440: /* Return values of the PyUnicode_KIND() macro: */
     441:     PyUnicode_1BYTE_KIND = 1,
     442:     PyUnicode_2BYTE_KIND = 2,
     443:     PyUnicode_4BYTE_KIND = 4
     444: };
     445: 
     446: /* Return pointers to the canonical representation cast to unsigned char,
     447:    Py_UCS2, or Py_UCS4 for direct character access.
     448:    No checks are performed, use PyUnicode_KIND() before to ensure
     449:    these will work correctly. */
     450: 
     451: #define PyUnicode_1BYTE_DATA(op) ((Py_UCS1*)PyUnicode_DATA(op))
     452: #define PyUnicode_2BYTE_DATA(op) ((Py_UCS2*)PyUnicode_DATA(op))
     453: #define PyUnicode_4BYTE_DATA(op) ((Py_UCS4*)PyUnicode_DATA(op))
     454: 
     455: /* Return one of the PyUnicode_*_KIND values defined above. */
     456: #define PyUnicode_KIND(op) \
     457:     (assert(PyUnicode_Check(op)), \
     458:      assert(PyUnicode_IS_READY(op)),            \
     459:      ((PyASCIIObject *)(op))->state.kind)
     460: 
     461: /* Return a void pointer to the raw unicode buffer. */
     462: #define _PyUnicode_COMPACT_DATA(op)                     \
     463:     (PyUnicode_IS_ASCII(op) ?                   \
     464:      ((void*)((PyASCIIObject*)(op) + 1)) :              \
     465:      ((void*)((PyCompactUnicodeObject*)(op) + 1)))
     466: 
     467: #define _PyUnicode_NONCOMPACT_DATA(op)                  \
     468:     (assert(((PyUnicodeObject*)(op))->data.any),        \
     469:      ((((PyUnicodeObject *)(op))->data.any)))
     470: 
     471: #define PyUnicode_DATA(op) \
     472:     (assert(PyUnicode_Check(op)), \
     473:      PyUnicode_IS_COMPACT(op) ? _PyUnicode_COMPACT_DATA(op) :   \
     474:      _PyUnicode_NONCOMPACT_DATA(op))
     475: 
     476: /* In the access macros below, "kind" may be evaluated more than once.
     477:    All other macro parameters are evaluated exactly once, so it is safe
     478:    to put side effects into them (such as increasing the index). */
     479: 
     480: /* Write into the canonical representation, this macro does not do any sanity
     481:    checks and is intended for usage in loops.  The caller should cache the
     482:    kind and data pointers obtained from other macro calls.
     483:    index is the index in the string (starts at 0) and value is the new
     484:    code point value which should be written to that location. */
     485: #define PyUnicode_WRITE(kind, data, index, value) \
     486:     do { \
     487:         switch ((kind)) { \
     488:         case PyUnicode_1BYTE_KIND: { \
     489:             ((Py_UCS1 *)(data))[(index)] = (Py_UCS1)(value); \
     490:             break; \
     491:         } \
     492:         case PyUnicode_2BYTE_KIND: { \
     493:             ((Py_UCS2 *)(data))[(index)] = (Py_UCS2)(value); \
     494:             break; \
     495:         } \
     496:         default: { \
     497:             assert((kind) == PyUnicode_4BYTE_KIND); \
     498:             ((Py_UCS4 *)(data))[(index)] = (Py_UCS4)(value); \
     499:         } \
     500:         } \
     501:     } while (0)
     502: 
     503: /* Read a code point from the string's canonical representation.  No checks
     504:    or ready calls are performed. */
     505: #define PyUnicode_READ(kind, data, index) \
     506:     ((Py_UCS4) \
     507:     ((kind) == PyUnicode_1BYTE_KIND ? \
     508:         ((const Py_UCS1 *)(data))[(index)] : \
     509:         ((kind) == PyUnicode_2BYTE_KIND ? \
     510:             ((const Py_UCS2 *)(data))[(index)] : \
     511:             ((const Py_UCS4 *)(data))[(index)] \
     512:         ) \
     513:     ))
     514: 
     515: /* PyUnicode_READ_CHAR() is less efficient than PyUnicode_READ() because it
     516:    calls PyUnicode_KIND() and might call it twice.  For single reads, use
     517:    PyUnicode_READ_CHAR, for multiple consecutive reads callers should
     518:    cache kind and use PyUnicode_READ instead. */
     519: #define PyUnicode_READ_CHAR(unicode, index) \
     520:     (assert(PyUnicode_Check(unicode)),          \
     521:      assert(PyUnicode_IS_READY(unicode)),       \
     522:      (Py_UCS4)                                  \
     523:         (PyUnicode_KIND((unicode)) == PyUnicode_1BYTE_KIND ? \
     524:             ((const Py_UCS1 *)(PyUnicode_DATA((unicode))))[(index)] : \
     525:             (PyUnicode_KIND((unicode)) == PyUnicode_2BYTE_KIND ? \
     526:                 ((const Py_UCS2 *)(PyUnicode_DATA((unicode))))[(index)] : \
     527:                 ((const Py_UCS4 *)(PyUnicode_DATA((unicode))))[(index)] \
     528:             ) \
     529:         ))
     530: 
     531: /* Returns the length of the unicode string. The caller has to make sure that
     532:    the string has it's canonical representation set before calling
     533:    this macro.  Call PyUnicode_(FAST_)Ready to ensure that. */
     534: #define PyUnicode_GET_LENGTH(op)                \
     535:     (assert(PyUnicode_Check(op)),               \
     536:      assert(PyUnicode_IS_READY(op)),            \
     537:      ((PyASCIIObject *)(op))->length)
     538: 
     539: 
     540: /* Fast check to determine whether an object is ready. Equivalent to
     541:    PyUnicode_IS_COMPACT(op) || ((PyUnicodeObject*)(op))->data.any) */
     542: 
     543: #define PyUnicode_IS_READY(op) (((PyASCIIObject*)op)->state.ready)
     544: 
     545: /* PyUnicode_READY() does less work than _PyUnicode_Ready() in the best
     546:    case.  If the canonical representation is not yet set, it will still call
     547:    _PyUnicode_Ready().
     548:    Returns 0 on success and -1 on errors. */
     549: #define PyUnicode_READY(op)                        \
     550:     (assert(PyUnicode_Check(op)),                       \
     551:      (PyUnicode_IS_READY(op) ?                          \
     552:       0 : _PyUnicode_Ready((PyObject *)(op))))
     553: 
     554: /* Return a maximum character value which is suitable for creating another
     555:    string based on op.  This is always an approximation but more efficient
     556:    than iterating over the string. */
     557: #define PyUnicode_MAX_CHAR_VALUE(op) \
     558:     (assert(PyUnicode_IS_READY(op)),                                    \
     559:      (PyUnicode_IS_ASCII(op) ?                                          \
     560:       (0x7f) :                                                          \
     561:       (PyUnicode_KIND(op) == PyUnicode_1BYTE_KIND ?                     \
     562:        (0xffU) :                                                        \
     563:        (PyUnicode_KIND(op) == PyUnicode_2BYTE_KIND ?                    \
     564:         (0xffffU) :                                                     \
     565:         (0x10ffffU)))))
     566: 
     567: #endif
     568: 
     569: /* --- Constants ---------------------------------------------------------- */
     570: 
     571: /* This Unicode character will be used as replacement character during
     572:    decoding if the errors argument is set to "replace". Note: the
     573:    Unicode character U+FFFD is the official REPLACEMENT CHARACTER in
     574:    Unicode 3.0. */
     575: 
     576: #define Py_UNICODE_REPLACEMENT_CHARACTER ((Py_UCS4) 0xFFFD)
     577: 
     578: /* === Public API ========================================================= */
     579: 
     580: /* --- Plain Py_UNICODE --------------------------------------------------- */
     581: 
     582: /* With PEP 393, this is the recommended way to allocate a new unicode object.
     583:    This function will allocate the object and its buffer in a single memory
     584:    block.  Objects created using this function are not resizable. */
     585: #ifndef Py_LIMITED_API
     586: PyAPI_FUNC(PyObject*) PyUnicode_New(
     587:     Py_ssize_t size,            /* Number of code points in the new string */
     588:     Py_UCS4 maxchar             /* maximum code point value in the string */
     589:     );
     590: #endif
     591: 
     592: /* Initializes the canonical string representation from the deprecated
     593:    wstr/Py_UNICODE representation. This function is used to convert Unicode
     594:    objects which were created using the old API to the new flexible format
     595:    introduced with PEP 393.
     596: 
     597:    Don't call this function directly, use the public PyUnicode_READY() macro
     598:    instead. */
     599: #ifndef Py_LIMITED_API
     600: PyAPI_FUNC(int) _PyUnicode_Ready(
     601:     PyObject *unicode           /* Unicode object */
     602:     );
     603: #endif
     604: 
     605: /* Get a copy of a Unicode string. */
     606: #ifndef Py_LIMITED_API
     607: PyAPI_FUNC(PyObject*) _PyUnicode_Copy(
     608:     PyObject *unicode
     609:     );
     610: #endif
     611: 
     612: /* Copy character from one unicode object into another, this function performs
     613:    character conversion when necessary and falls back to memcpy() if possible.
     614: 
     615:    Fail if to is too small (smaller than *how_many* or smaller than
     616:    len(from)-from_start), or if kind(from[from_start:from_start+how_many]) >
     617:    kind(to), or if *to* has more than 1 reference.
     618: 
     619:    Return the number of written character, or return -1 and raise an exception
     620:    on error.
     621: 
     622:    Pseudo-code:
     623: 
     624:        how_many = min(how_many, len(from) - from_start)
     625:        to[to_start:to_start+how_many] = from[from_start:from_start+how_many]
     626:        return how_many
     627: 
     628:    Note: The function doesn't write a terminating null character.
     629:    */
     630: #ifndef Py_LIMITED_API
     631: PyAPI_FUNC(Py_ssize_t) PyUnicode_CopyCharacters(
     632:     PyObject *to,
     633:     Py_ssize_t to_start,
     634:     PyObject *from,
     635:     Py_ssize_t from_start,
     636:     Py_ssize_t how_many
     637:     );
     638: 
     639: /* Unsafe version of PyUnicode_CopyCharacters(): don't check arguments and so
     640:    may crash if parameters are invalid (e.g. if the output string
     641:    is too short). */
     642: PyAPI_FUNC(void) _PyUnicode_FastCopyCharacters(
     643:     PyObject *to,
     644:     Py_ssize_t to_start,
     645:     PyObject *from,
     646:     Py_ssize_t from_start,
     647:     Py_ssize_t how_many
     648:     );
     649: #endif
     650: 
     651: #ifndef Py_LIMITED_API
     652: /* Fill a string with a character: write fill_char into
     653:    unicode[start:start+length].
     654: 
     655:    Fail if fill_char is bigger than the string maximum character, or if the
     656:    string has more than 1 reference.
     657: 
     658:    Return the number of written character, or return -1 and raise an exception
     659:    on error. */
     660: PyAPI_FUNC(Py_ssize_t) PyUnicode_Fill(
     661:     PyObject *unicode,
     662:     Py_ssize_t start,
     663:     Py_ssize_t length,
     664:     Py_UCS4 fill_char
     665:     );
     666: 
     667: /* Unsafe version of PyUnicode_Fill(): don't check arguments and so may crash
     668:    if parameters are invalid (e.g. if length is longer than the string). */
     669: PyAPI_FUNC(void) _PyUnicode_FastFill(
     670:     PyObject *unicode,
     671:     Py_ssize_t start,
     672:     Py_ssize_t length,
     673:     Py_UCS4 fill_char
     674:     );
     675: #endif
     676: 
     677: /* Create a Unicode Object from the Py_UNICODE buffer u of the given
     678:    size.
     679: 
     680:    u may be NULL which causes the contents to be undefined. It is the
     681:    user's responsibility to fill in the needed data afterwards. Note
     682:    that modifying the Unicode object contents after construction is
     683:    only allowed if u was set to NULL.
     684: 
     685:    The buffer is copied into the new object. */
     686: 
     687: #ifndef Py_LIMITED_API
     688: PyAPI_FUNC(PyObject*) PyUnicode_FromUnicode(
     689:     const Py_UNICODE *u,        /* Unicode buffer */
     690:     Py_ssize_t size             /* size of buffer */
     691:     );
     692: #endif
     693: 
     694: /* Similar to PyUnicode_FromUnicode(), but u points to UTF-8 encoded bytes */
     695: PyAPI_FUNC(PyObject*) PyUnicode_FromStringAndSize(
     696:     const char *u,             /* UTF-8 encoded string */
     697:     Py_ssize_t size            /* size of buffer */
     698:     );
     699: 
     700: /* Similar to PyUnicode_FromUnicode(), but u points to null-terminated
     701:    UTF-8 encoded bytes.  The size is determined with strlen(). */
     702: PyAPI_FUNC(PyObject*) PyUnicode_FromString(
     703:     const char *u              /* UTF-8 encoded string */
     704:     );
     705: 
     706: #ifndef Py_LIMITED_API
     707: /* Create a new string from a buffer of Py_UCS1, Py_UCS2 or Py_UCS4 characters.
     708:    Scan the string to find the maximum character. */
     709: PyAPI_FUNC(PyObject*) PyUnicode_FromKindAndData(
     710:     int kind,
     711:     const void *buffer,
     712:     Py_ssize_t size);
     713: 
     714: /* Create a new string from a buffer of ASCII characters.
     715:    WARNING: Don't check if the string contains any non-ASCII character. */
     716: PyAPI_FUNC(PyObject*) _PyUnicode_FromASCII(
     717:     const char *buffer,
     718:     Py_ssize_t size);
     719: #endif
     720: 
     721: #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000
     722: PyAPI_FUNC(PyObject*) PyUnicode_Substring(
     723:     PyObject *str,
     724:     Py_ssize_t start,
     725:     Py_ssize_t end);
     726: #endif
     727: 
     728: #ifndef Py_LIMITED_API
     729: /* Compute the maximum character of the substring unicode[start:end].
     730:    Return 127 for an empty string. */
     731: PyAPI_FUNC(Py_UCS4) _PyUnicode_FindMaxChar (
     732:     PyObject *unicode,
     733:     Py_ssize_t start,
     734:     Py_ssize_t end);
     735: #endif
     736: 
     737: #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000
     738: /* Copy the string into a UCS4 buffer including the null character if copy_null
     739:    is set. Return NULL and raise an exception on error. Raise a SystemError if
     740:    the buffer is smaller than the string. Return buffer on success.
     741: 
     742:    buflen is the length of the buffer in (Py_UCS4) characters. */
     743: PyAPI_FUNC(Py_UCS4*) PyUnicode_AsUCS4(
     744:     PyObject *unicode,
     745:     Py_UCS4* buffer,
     746:     Py_ssize_t buflen,
     747:     int copy_null);
     748: 
     749: /* Copy the string into a UCS4 buffer. A new buffer is allocated using
     750:  * PyMem_Malloc; if this fails, NULL is returned with a memory error
     751:    exception set. */
     752: PyAPI_FUNC(Py_UCS4*) PyUnicode_AsUCS4Copy(PyObject *unicode);
     753: #endif
     754: 
     755: /* Return a read-only pointer to the Unicode object's internal
     756:    Py_UNICODE buffer.
     757:    If the wchar_t/Py_UNICODE representation is not yet available, this
     758:    function will calculate it. */
     759: 
     760: #ifndef Py_LIMITED_API
     761: PyAPI_FUNC(Py_UNICODE *) PyUnicode_AsUnicode(
     762:     PyObject *unicode           /* Unicode object */
     763:     );
     764: #endif
     765: 
     766: /* Return a read-only pointer to the Unicode object's internal
     767:    Py_UNICODE buffer and save the length at size.
     768:    If the wchar_t/Py_UNICODE representation is not yet available, this
     769:    function will calculate it. */
     770: 
     771: #ifndef Py_LIMITED_API
     772: PyAPI_FUNC(Py_UNICODE *) PyUnicode_AsUnicodeAndSize(
     773:     PyObject *unicode,          /* Unicode object */
     774:     Py_ssize_t *size            /* location where to save the length */
     775:     );
     776: #endif
     777: 
     778: #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000
     779: /* Get the length of the Unicode object. */
     780: 
     781: PyAPI_FUNC(Py_ssize_t) PyUnicode_GetLength(
     782:     PyObject *unicode
     783: );
     784: #endif
     785: 
     786: /* Get the number of Py_UNICODE units in the
     787:    string representation. */
     788: 
     789: PyAPI_FUNC(Py_ssize_t) PyUnicode_GetSize(
     790:     PyObject *unicode           /* Unicode object */
     791:     );
     792: 
     793: #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000
     794: /* Read a character from the string. */
     795: 
     796: PyAPI_FUNC(Py_UCS4) PyUnicode_ReadChar(
     797:     PyObject *unicode,
     798:     Py_ssize_t index
     799:     );
     800: 
     801: /* Write a character to the string. The string must have been created through
     802:    PyUnicode_New, must not be shared, and must not have been hashed yet.
     803: 
     804:    Return 0 on success, -1 on error. */
     805: 
     806: PyAPI_FUNC(int) PyUnicode_WriteChar(
     807:     PyObject *unicode,
     808:     Py_ssize_t index,
     809:     Py_UCS4 character
     810:     );
     811: #endif
     812: 
     813: #ifndef Py_LIMITED_API
     814: /* Get the maximum ordinal for a Unicode character. */
     815: PyAPI_FUNC(Py_UNICODE) PyUnicode_GetMax(void);
     816: #endif
     817: 
     818: /* Resize a Unicode object. The length is the number of characters, except
     819:    if the kind of the string is PyUnicode_WCHAR_KIND: in this case, the length
     820:    is the number of Py_UNICODE characters.
     821: 
     822:    *unicode is modified to point to the new (resized) object and 0
     823:    returned on success.
     824: 
     825:    Try to resize the string in place (which is usually faster than allocating
     826:    a new string and copy characters), or create a new string.
     827: 
     828:    Error handling is implemented as follows: an exception is set, -1
     829:    is returned and *unicode left untouched.
     830: 
     831:    WARNING: The function doesn't check string content, the result may not be a
     832:             string in canonical representation. */
     833: 
     834: PyAPI_FUNC(int) PyUnicode_Resize(
     835:     PyObject **unicode,         /* Pointer to the Unicode object */
     836:     Py_ssize_t length           /* New length */
     837:     );
     838: 
     839: /* Decode obj to a Unicode object.
     840: 
     841:    bytes, bytearray and other bytes-like objects are decoded according to the
     842:    given encoding and error handler. The encoding and error handler can be
     843:    NULL to have the interface use UTF-8 and "strict".
     844: 
     845:    All other objects (including Unicode objects) raise an exception.
     846: 
     847:    The API returns NULL in case of an error. The caller is responsible
     848:    for decref'ing the returned objects.
     849: 
     850: */
     851: 
     852: PyAPI_FUNC(PyObject*) PyUnicode_FromEncodedObject(
     853:     PyObject *obj,              /* Object */
     854:     const char *encoding,       /* encoding */
     855:     const char *errors          /* error handling */
     856:     );
     857: 
     858: /* Copy an instance of a Unicode subtype to a new true Unicode object if
     859:    necessary. If obj is already a true Unicode object (not a subtype), return
     860:    the reference with *incremented* refcount.
     861: 
     862:    The API returns NULL in case of an error. The caller is responsible
     863:    for decref'ing the returned objects.
     864: 
     865: */
     866: 
     867: PyAPI_FUNC(PyObject*) PyUnicode_FromObject(
     868:     PyObject *obj      /* Object */
     869:     );
     870: 
     871: PyAPI_FUNC(PyObject *) PyUnicode_FromFormatV(
     872:     const char *format,   /* ASCII-encoded string  */
     873:     va_list vargs
     874:     );
     875: PyAPI_FUNC(PyObject *) PyUnicode_FromFormat(
     876:     const char *format,   /* ASCII-encoded string  */
     877:     ...
     878:     );
     879: 
     880: #ifndef Py_LIMITED_API
     881: typedef struct {
     882:     PyObject *buffer;
     883:     void *data;
     884:     enum PyUnicode_Kind kind;
     885:     Py_UCS4 maxchar;
     886:     Py_ssize_t size;
     887:     Py_ssize_t pos;
     888: 
     889:     /* minimum number of allocated characters (default: 0) */
     890:     Py_ssize_t min_length;
     891: 
     892:     /* minimum character (default: 127, ASCII) */
     893:     Py_UCS4 min_char;
     894: 
     895:     /* If non-zero, overallocate the buffer (default: 0). */
     896:     unsigned char overallocate;
     897: 
     898:     /* If readonly is 1, buffer is a shared string (cannot be modified)
     899:        and size is set to 0. */
     900:     unsigned char readonly;
     901: } _PyUnicodeWriter ;
     902: 
     903: /* Initialize a Unicode writer.
     904:  *
     905:  * By default, the minimum buffer size is 0 character and overallocation is
     906:  * disabled. Set min_length, min_char and overallocate attributes to control
     907:  * the allocation of the buffer. */
     908: PyAPI_FUNC(void)
     909: _PyUnicodeWriter_Init(_PyUnicodeWriter *writer);
     910: 
     911: /* Prepare the buffer to write 'length' characters
     912:    with the specified maximum character.
     913: 
     914:    Return 0 on success, raise an exception and return -1 on error. */
     915: #define _PyUnicodeWriter_Prepare(WRITER, LENGTH, MAXCHAR)             \
     916:     (((MAXCHAR) <= (WRITER)->maxchar                                  \
     917:       && (LENGTH) <= (WRITER)->size - (WRITER)->pos)                  \
     918:      ? 0                                                              \
     919:      : (((LENGTH) == 0)                                               \
     920:         ? 0                                                           \
     921:         : _PyUnicodeWriter_PrepareInternal((WRITER), (LENGTH), (MAXCHAR))))
     922: 
     923: /* Don't call this function directly, use the _PyUnicodeWriter_Prepare() macro
     924:    instead. */
     925: PyAPI_FUNC(int)
     926: _PyUnicodeWriter_PrepareInternal(_PyUnicodeWriter *writer,
     927:                                  Py_ssize_t length, Py_UCS4 maxchar);
     928: 
     929: /* Prepare the buffer to have at least the kind KIND.
     930:    For example, kind=PyUnicode_2BYTE_KIND ensures that the writer will
     931:    support characters in range U+000-U+FFFF.
     932: 
     933:    Return 0 on success, raise an exception and return -1 on error. */
     934: #define _PyUnicodeWriter_PrepareKind(WRITER, KIND)                    \
     935:     (assert((KIND) != PyUnicode_WCHAR_KIND),                          \
     936:      (KIND) <= (WRITER)->kind                                         \
     937:      ? 0                                                              \
     938:      : _PyUnicodeWriter_PrepareKindInternal((WRITER), (KIND)))
     939: 
     940: /* Don't call this function directly, use the _PyUnicodeWriter_PrepareKind()
     941:    macro instead. */
     942: PyAPI_FUNC(int)
     943: _PyUnicodeWriter_PrepareKindInternal(_PyUnicodeWriter *writer,
     944:                                      enum PyUnicode_Kind kind);
     945: 
     946: /* Append a Unicode character.
     947:    Return 0 on success, raise an exception and return -1 on error. */
     948: PyAPI_FUNC(int)
     949: _PyUnicodeWriter_WriteChar(_PyUnicodeWriter *writer,
     950:     Py_UCS4 ch
     951:     );
     952: 
     953: /* Append a Unicode string.
     954:    Return 0 on success, raise an exception and return -1 on error. */
     955: PyAPI_FUNC(int)
     956: _PyUnicodeWriter_WriteStr(_PyUnicodeWriter *writer,
     957:     PyObject *str               /* Unicode string */
     958:     );
     959: 
     960: /* Append a substring of a Unicode string.
     961:    Return 0 on success, raise an exception and return -1 on error. */
     962: PyAPI_FUNC(int)
     963: _PyUnicodeWriter_WriteSubstring(_PyUnicodeWriter *writer,
     964:     PyObject *str,              /* Unicode string */
     965:     Py_ssize_t start,
     966:     Py_ssize_t end
     967:     );
     968: 
     969: /* Append an ASCII-encoded byte string.
     970:    Return 0 on success, raise an exception and return -1 on error. */
     971: PyAPI_FUNC(int)
     972: _PyUnicodeWriter_WriteASCIIString(_PyUnicodeWriter *writer,
     973:     const char *str,           /* ASCII-encoded byte string */
     974:     Py_ssize_t len             /* number of bytes, or -1 if unknown */
     975:     );
     976: 
     977: /* Append a latin1-encoded byte string.
     978:    Return 0 on success, raise an exception and return -1 on error. */
     979: PyAPI_FUNC(int)
     980: _PyUnicodeWriter_WriteLatin1String(_PyUnicodeWriter *writer,
     981:     const char *str,           /* latin1-encoded byte string */
     982:     Py_ssize_t len             /* length in bytes */
     983:     );
     984: 
     985: /* Get the value of the writer as a Unicode string. Clear the
     986:    buffer of the writer. Raise an exception and return NULL
     987:    on error. */
     988: PyAPI_FUNC(PyObject *)
     989: _PyUnicodeWriter_Finish(_PyUnicodeWriter *writer);
     990: 
     991: /* Deallocate memory of a writer (clear its internal buffer). */
     992: PyAPI_FUNC(void)
     993: _PyUnicodeWriter_Dealloc(_PyUnicodeWriter *writer);
     994: #endif
     995: 
     996: #ifndef Py_LIMITED_API
     997: /* Format the object based on the format_spec, as defined in PEP 3101
     998:    (Advanced String Formatting). */
     999: PyAPI_FUNC(int) _PyUnicode_FormatAdvancedWriter(
    1000:     _PyUnicodeWriter *writer,
    1001:     PyObject *obj,
    1002:     PyObject *format_spec,
    1003:     Py_ssize_t start,
    1004:     Py_ssize_t end);
    1005: #endif
    1006: 
    1007: PyAPI_FUNC(void) PyUnicode_InternInPlace(PyObject **);
    1008: PyAPI_FUNC(void) PyUnicode_InternImmortal(PyObject **);
    1009: PyAPI_FUNC(PyObject *) PyUnicode_InternFromString(
    1010:     const char *u              /* UTF-8 encoded string */
    1011:     );
    1012: #ifndef Py_LIMITED_API
    1013: PyAPI_FUNC(void) _Py_ReleaseInternedUnicodeStrings(void);
    1014: #endif
    1015: 
    1016: /* Use only if you know it's a string */
    1017: #define PyUnicode_CHECK_INTERNED(op) \
    1018:     (((PyASCIIObject *)(op))->state.interned)
    1019: 
    1020: /* --- wchar_t support for platforms which support it --------------------- */
    1021: 
    1022: #ifdef HAVE_WCHAR_H
    1023: 
    1024: /* Create a Unicode Object from the wchar_t buffer w of the given
    1025:    size.
    1026: 
    1027:    The buffer is copied into the new object. */
    1028: 
    1029: PyAPI_FUNC(PyObject*) PyUnicode_FromWideChar(
    1030:     const wchar_t *w,           /* wchar_t buffer */
    1031:     Py_ssize_t size             /* size of buffer */
    1032:     );
    1033: 
    1034: /* Copies the Unicode Object contents into the wchar_t buffer w.  At
    1035:    most size wchar_t characters are copied.
    1036: 
    1037:    Note that the resulting wchar_t string may or may not be
    1038:    0-terminated.  It is the responsibility of the caller to make sure
    1039:    that the wchar_t string is 0-terminated in case this is required by
    1040:    the application.
    1041: 
    1042:    Returns the number of wchar_t characters copied (excluding a
    1043:    possibly trailing 0-termination character) or -1 in case of an
    1044:    error. */
    1045: 
    1046: PyAPI_FUNC(Py_ssize_t) PyUnicode_AsWideChar(
    1047:     PyObject *unicode,          /* Unicode object */
    1048:     wchar_t *w,                 /* wchar_t buffer */
    1049:     Py_ssize_t size             /* size of buffer */
    1050:     );
    1051: 
    1052: /* Convert the Unicode object to a wide character string. The output string
    1053:    always ends with a nul character. If size is not NULL, write the number of
    1054:    wide characters (excluding the null character) into *size.
    1055: 
    1056:    Returns a buffer allocated by PyMem_Malloc() (use PyMem_Free() to free it)
    1057:    on success. On error, returns NULL, *size is undefined and raises a
    1058:    MemoryError. */
    1059: 
    1060: PyAPI_FUNC(wchar_t*) PyUnicode_AsWideCharString(
    1061:     PyObject *unicode,          /* Unicode object */
    1062:     Py_ssize_t *size            /* number of characters of the result */
    1063:     );
    1064: 
    1065: #ifndef Py_LIMITED_API
    1066: PyAPI_FUNC(void*) _PyUnicode_AsKind(PyObject *s, unsigned int kind);
    1067: #endif
    1068: 
    1069: #endif
    1070: 
    1071: /* --- Unicode ordinals --------------------------------------------------- */
    1072: 
    1073: /* Create a Unicode Object from the given Unicode code point ordinal.
    1074: 
    1075:    The ordinal must be in range(0x110000). A ValueError is
    1076:    raised in case it is not.
    1077: 
    1078: */
    1079: 
    1080: PyAPI_FUNC(PyObject*) PyUnicode_FromOrdinal(int ordinal);
    1081: 
    1082: /* --- Free-list management ----------------------------------------------- */
    1083: 
    1084: /* Clear the free list used by the Unicode implementation.
    1085: 
    1086:    This can be used to release memory used for objects on the free
    1087:    list back to the Python memory allocator.
    1088: 
    1089: */
    1090: 
    1091: PyAPI_FUNC(int) PyUnicode_ClearFreeList(void);
    1092: 
    1093: /* === Builtin Codecs =====================================================
    1094: 
    1095:    Many of these APIs take two arguments encoding and errors. These
    1096:    parameters encoding and errors have the same semantics as the ones
    1097:    of the builtin str() API.
    1098: 
    1099:    Setting encoding to NULL causes the default encoding (UTF-8) to be used.
    1100: 
    1101:    Error handling is set by errors which may also be set to NULL
    1102:    meaning to use the default handling defined for the codec. Default
    1103:    error handling for all builtin codecs is "strict" (ValueErrors are
    1104:    raised).
    1105: 
    1106:    The codecs all use a similar interface. Only deviation from the
    1107:    generic ones are documented.
    1108: 
    1109: */
    1110: 
    1111: /* --- Manage the default encoding ---------------------------------------- */
    1112: 
    1113: /* Returns a pointer to the default encoding (UTF-8) of the
    1114:    Unicode object unicode and the size of the encoded representation
    1115:    in bytes stored in *size.
    1116: 
    1117:    In case of an error, no *size is set.
    1118: 
    1119:    This function caches the UTF-8 encoded string in the unicodeobject
    1120:    and subsequent calls will return the same string.  The memory is released
    1121:    when the unicodeobject is deallocated.
    1122: 
    1123:    _PyUnicode_AsStringAndSize is a #define for PyUnicode_AsUTF8AndSize to
    1124:    support the previous internal function with the same behaviour.
    1125: 
    1126:    *** This API is for interpreter INTERNAL USE ONLY and will likely
    1127:    *** be removed or changed in the future.
    1128: 
    1129:    *** If you need to access the Unicode object as UTF-8 bytes string,
    1130:    *** please use PyUnicode_AsUTF8String() instead.
    1131: */
    1132: 
    1133: #ifndef Py_LIMITED_API
    1134: PyAPI_FUNC(char *) PyUnicode_AsUTF8AndSize(
    1135:     PyObject *unicode,
    1136:     Py_ssize_t *size);
    1137: #define _PyUnicode_AsStringAndSize PyUnicode_AsUTF8AndSize
    1138: #endif
    1139: 
    1140: /* Returns a pointer to the default encoding (UTF-8) of the
    1141:    Unicode object unicode.
    1142: 
    1143:    Like PyUnicode_AsUTF8AndSize(), this also caches the UTF-8 representation
    1144:    in the unicodeobject.
    1145: 
    1146:    _PyUnicode_AsString is a #define for PyUnicode_AsUTF8 to
    1147:    support the previous internal function with the same behaviour.
    1148: 
    1149:    Use of this API is DEPRECATED since no size information can be
    1150:    extracted from the returned data.
    1151: 
    1152:    *** This API is for interpreter INTERNAL USE ONLY and will likely
    1153:    *** be removed or changed for Python 3.1.
    1154: 
    1155:    *** If you need to access the Unicode object as UTF-8 bytes string,
    1156:    *** please use PyUnicode_AsUTF8String() instead.
    1157: 
    1158: */
    1159: 
    1160: #ifndef Py_LIMITED_API
    1161: PyAPI_FUNC(char *) PyUnicode_AsUTF8(PyObject *unicode);
    1162: #define _PyUnicode_AsString PyUnicode_AsUTF8
    1163: #endif
    1164: 
    1165: /* Returns "utf-8".  */
    1166: 
    1167: PyAPI_FUNC(const char*) PyUnicode_GetDefaultEncoding(void);
    1168: 
    1169: /* --- Generic Codecs ----------------------------------------------------- */
    1170: 
    1171: /* Create a Unicode object by decoding the encoded string s of the
    1172:    given size. */
    1173: 
    1174: PyAPI_FUNC(PyObject*) PyUnicode_Decode(
    1175:     const char *s,              /* encoded string */
    1176:     Py_ssize_t size,            /* size of buffer */
    1177:     const char *encoding,       /* encoding */
    1178:     const char *errors          /* error handling */
    1179:     );
    1180: 
    1181: /* Decode a Unicode object unicode and return the result as Python
    1182:    object.
    1183: 
    1184:    This API is DEPRECATED. The only supported standard encoding is rot13.
    1185:    Use PyCodec_Decode() to decode with rot13 and non-standard codecs
    1186:    that decode from str. */
    1187: 
    1188: PyAPI_FUNC(PyObject*) PyUnicode_AsDecodedObject(
    1189:     PyObject *unicode,          /* Unicode object */
    1190:     const char *encoding,       /* encoding */
    1191:     const char *errors          /* error handling */
    1192:     ) Py_DEPRECATED(3.6);
    1193: 
    1194: /* Decode a Unicode object unicode and return the result as Unicode
    1195:    object.
    1196: 
    1197:    This API is DEPRECATED. The only supported standard encoding is rot13.
    1198:    Use PyCodec_Decode() to decode with rot13 and non-standard codecs
    1199:    that decode from str to str. */
    1200: 
    1201: PyAPI_FUNC(PyObject*) PyUnicode_AsDecodedUnicode(
    1202:     PyObject *unicode,          /* Unicode object */
    1203:     const char *encoding,       /* encoding */
    1204:     const char *errors          /* error handling */
    1205:     ) Py_DEPRECATED(3.6);
    1206: 
    1207: /* Encodes a Py_UNICODE buffer of the given size and returns a
    1208:    Python string object. */
    1209: 
    1210: #ifndef Py_LIMITED_API
    1211: PyAPI_FUNC(PyObject*) PyUnicode_Encode(
    1212:     const Py_UNICODE *s,        /* Unicode char buffer */
    1213:     Py_ssize_t size,            /* number of Py_UNICODE chars to encode */
    1214:     const char *encoding,       /* encoding */
    1215:     const char *errors          /* error handling */
    1216:     );
    1217: #endif
    1218: 
    1219: /* Encodes a Unicode object and returns the result as Python
    1220:    object.
    1221: 
    1222:    This API is DEPRECATED.  It is superceeded by PyUnicode_AsEncodedString()
    1223:    since all standard encodings (except rot13) encode str to bytes.
    1224:    Use PyCodec_Encode() for encoding with rot13 and non-standard codecs
    1225:    that encode form str to non-bytes. */
    1226: 
    1227: PyAPI_FUNC(PyObject*) PyUnicode_AsEncodedObject(
    1228:     PyObject *unicode,          /* Unicode object */
    1229:     const char *encoding,       /* encoding */
    1230:     const char *errors          /* error handling */
    1231:     ) Py_DEPRECATED(3.6);
    1232: 
    1233: /* Encodes a Unicode object and returns the result as Python string
    1234:    object. */
    1235: 
    1236: PyAPI_FUNC(PyObject*) PyUnicode_AsEncodedString(
    1237:     PyObject *unicode,          /* Unicode object */
    1238:     const char *encoding,       /* encoding */
    1239:     const char *errors          /* error handling */
    1240:     );
    1241: 
    1242: /* Encodes a Unicode object and returns the result as Unicode
    1243:    object.
    1244: 
    1245:    This API is DEPRECATED.  The only supported standard encodings is rot13.
    1246:    Use PyCodec_Encode() to encode with rot13 and non-standard codecs
    1247:    that encode from str to str. */
    1248: 
    1249: PyAPI_FUNC(PyObject*) PyUnicode_AsEncodedUnicode(
    1250:     PyObject *unicode,          /* Unicode object */
    1251:     const char *encoding,       /* encoding */
    1252:     const char *errors          /* error handling */
    1253:     ) Py_DEPRECATED(3.6);
    1254: 
    1255: /* Build an encoding map. */
    1256: 
    1257: PyAPI_FUNC(PyObject*) PyUnicode_BuildEncodingMap(
    1258:     PyObject* string            /* 256 character map */
    1259:    );
    1260: 
    1261: /* --- UTF-7 Codecs ------------------------------------------------------- */
    1262: 
    1263: PyAPI_FUNC(PyObject*) PyUnicode_DecodeUTF7(
    1264:     const char *string,         /* UTF-7 encoded string */
    1265:     Py_ssize_t length,          /* size of string */
    1266:     const char *errors          /* error handling */
    1267:     );
    1268: 
    1269: PyAPI_FUNC(PyObject*) PyUnicode_DecodeUTF7Stateful(
    1270:     const char *string,         /* UTF-7 encoded string */
    1271:     Py_ssize_t length,          /* size of string */
    1272:     const char *errors,         /* error handling */
    1273:     Py_ssize_t *consumed        /* bytes consumed */
    1274:     );
    1275: 
    1276: #ifndef Py_LIMITED_API
    1277: PyAPI_FUNC(PyObject*) PyUnicode_EncodeUTF7(
    1278:     const Py_UNICODE *data,     /* Unicode char buffer */
    1279:     Py_ssize_t length,          /* number of Py_UNICODE chars to encode */
    1280:     int base64SetO,             /* Encode RFC2152 Set O characters in base64 */
    1281:     int base64WhiteSpace,       /* Encode whitespace (sp, ht, nl, cr) in base64 */
    1282:     const char *errors          /* error handling */
    1283:     );
    1284: PyAPI_FUNC(PyObject*) _PyUnicode_EncodeUTF7(
    1285:     PyObject *unicode,          /* Unicode object */
    1286:     int base64SetO,             /* Encode RFC2152 Set O characters in base64 */
    1287:     int base64WhiteSpace,       /* Encode whitespace (sp, ht, nl, cr) in base64 */
    1288:     const char *errors          /* error handling */
    1289:     );
    1290: #endif
    1291: 
    1292: /* --- UTF-8 Codecs ------------------------------------------------------- */
    1293: 
    1294: PyAPI_FUNC(PyObject*) PyUnicode_DecodeUTF8(
    1295:     const char *string,         /* UTF-8 encoded string */
    1296:     Py_ssize_t length,          /* size of string */
    1297:     const char *errors          /* error handling */
    1298:     );
    1299: 
    1300: PyAPI_FUNC(PyObject*) PyUnicode_DecodeUTF8Stateful(
    1301:     const char *string,         /* UTF-8 encoded string */
    1302:     Py_ssize_t length,          /* size of string */
    1303:     const char *errors,         /* error handling */
    1304:     Py_ssize_t *consumed        /* bytes consumed */
    1305:     );
    1306: 
    1307: PyAPI_FUNC(PyObject*) PyUnicode_AsUTF8String(
    1308:     PyObject *unicode           /* Unicode object */
    1309:     );
    1310: 
    1311: #ifndef Py_LIMITED_API
    1312: PyAPI_FUNC(PyObject*) _PyUnicode_AsUTF8String(
    1313:     PyObject *unicode,
    1314:     const char *errors);
    1315: 
    1316: PyAPI_FUNC(PyObject*) PyUnicode_EncodeUTF8(
    1317:     const Py_UNICODE *data,     /* Unicode char buffer */
    1318:     Py_ssize_t length,          /* number of Py_UNICODE chars to encode */
    1319:     const char *errors          /* error handling */
    1320:     );
    1321: #endif
    1322: 
    1323: /* --- UTF-32 Codecs ------------------------------------------------------ */
    1324: 
    1325: /* Decodes length bytes from a UTF-32 encoded buffer string and returns
    1326:    the corresponding Unicode object.
    1327: 
    1328:    errors (if non-NULL) defines the error handling. It defaults
    1329:    to "strict".
    1330: 
    1331:    If byteorder is non-NULL, the decoder starts decoding using the
    1332:    given byte order:
    1333: 
    1334:     *byteorder == -1: little endian
    1335:     *byteorder == 0:  native order
    1336:     *byteorder == 1:  big endian
    1337: 
    1338:    In native mode, the first four bytes of the stream are checked for a
    1339:    BOM mark. If found, the BOM mark is analysed, the byte order
    1340:    adjusted and the BOM skipped.  In the other modes, no BOM mark
    1341:    interpretation is done. After completion, *byteorder is set to the
    1342:    current byte order at the end of input data.
    1343: 
    1344:    If byteorder is NULL, the codec starts in native order mode.
    1345: 
    1346: */
    1347: 
    1348: PyAPI_FUNC(PyObject*) PyUnicode_DecodeUTF32(
    1349:     const char *string,         /* UTF-32 encoded string */
    1350:     Py_ssize_t length,          /* size of string */
    1351:     const char *errors,         /* error handling */
    1352:     int *byteorder              /* pointer to byteorder to use
    1353:                                    0=native;-1=LE,1=BE; updated on
    1354:                                    exit */
    1355:     );
    1356: 
    1357: PyAPI_FUNC(PyObject*) PyUnicode_DecodeUTF32Stateful(
    1358:     const char *string,         /* UTF-32 encoded string */
    1359:     Py_ssize_t length,          /* size of string */
    1360:     const char *errors,         /* error handling */
    1361:     int *byteorder,             /* pointer to byteorder to use
    1362:                                    0=native;-1=LE,1=BE; updated on
    1363:                                    exit */
    1364:     Py_ssize_t *consumed        /* bytes consumed */
    1365:     );
    1366: 
    1367: /* Returns a Python string using the UTF-32 encoding in native byte
    1368:    order. The string always starts with a BOM mark.  */
    1369: 
    1370: PyAPI_FUNC(PyObject*) PyUnicode_AsUTF32String(
    1371:     PyObject *unicode           /* Unicode object */
    1372:     );
    1373: 
    1374: /* Returns a Python string object holding the UTF-32 encoded value of
    1375:    the Unicode data.
    1376: 
    1377:    If byteorder is not 0, output is written according to the following
    1378:    byte order:
    1379: 
    1380:    byteorder == -1: little endian
    1381:    byteorder == 0:  native byte order (writes a BOM mark)
    1382:    byteorder == 1:  big endian
    1383: 
    1384:    If byteorder is 0, the output string will always start with the
    1385:    Unicode BOM mark (U+FEFF). In the other two modes, no BOM mark is
    1386:    prepended.
    1387: 
    1388: */
    1389: 
    1390: #ifndef Py_LIMITED_API
    1391: PyAPI_FUNC(PyObject*) PyUnicode_EncodeUTF32(
    1392:     const Py_UNICODE *data,     /* Unicode char buffer */
    1393:     Py_ssize_t length,          /* number of Py_UNICODE chars to encode */
    1394:     const char *errors,         /* error handling */
    1395:     int byteorder               /* byteorder to use 0=BOM+native;-1=LE,1=BE */
    1396:     );
    1397: PyAPI_FUNC(PyObject*) _PyUnicode_EncodeUTF32(
    1398:     PyObject *object,           /* Unicode object */
    1399:     const char *errors,         /* error handling */
    1400:     int byteorder               /* byteorder to use 0=BOM+native;-1=LE,1=BE */
    1401:     );
    1402: #endif
    1403: 
    1404: /* --- UTF-16 Codecs ------------------------------------------------------ */
    1405: 
    1406: /* Decodes length bytes from a UTF-16 encoded buffer string and returns
    1407:    the corresponding Unicode object.
    1408: 
    1409:    errors (if non-NULL) defines the error handling. It defaults
    1410:    to "strict".
    1411: 
    1412:    If byteorder is non-NULL, the decoder starts decoding using the
    1413:    given byte order:
    1414: 
    1415:     *byteorder == -1: little endian
    1416:     *byteorder == 0:  native order
    1417:     *byteorder == 1:  big endian
    1418: 
    1419:    In native mode, the first two bytes of the stream are checked for a
    1420:    BOM mark. If found, the BOM mark is analysed, the byte order
    1421:    adjusted and the BOM skipped.  In the other modes, no BOM mark
    1422:    interpretation is done. After completion, *byteorder is set to the
    1423:    current byte order at the end of input data.
    1424: 
    1425:    If byteorder is NULL, the codec starts in native order mode.
    1426: 
    1427: */
    1428: 
    1429: PyAPI_FUNC(PyObject*) PyUnicode_DecodeUTF16(
    1430:     const char *string,         /* UTF-16 encoded string */
    1431:     Py_ssize_t length,          /* size of string */
    1432:     const char *errors,         /* error handling */
    1433:     int *byteorder              /* pointer to byteorder to use
    1434:                                    0=native;-1=LE,1=BE; updated on
    1435:                                    exit */
    1436:     );
    1437: 
    1438: PyAPI_FUNC(PyObject*) PyUnicode_DecodeUTF16Stateful(
    1439:     const char *string,         /* UTF-16 encoded string */
    1440:     Py_ssize_t length,          /* size of string */
    1441:     const char *errors,         /* error handling */
    1442:     int *byteorder,             /* pointer to byteorder to use
    1443:                                    0=native;-1=LE,1=BE; updated on
    1444:                                    exit */
    1445:     Py_ssize_t *consumed        /* bytes consumed */
    1446:     );
    1447: 
    1448: /* Returns a Python string using the UTF-16 encoding in native byte
    1449:    order. The string always starts with a BOM mark.  */
    1450: 
    1451: PyAPI_FUNC(PyObject*) PyUnicode_AsUTF16String(
    1452:     PyObject *unicode           /* Unicode object */
    1453:     );
    1454: 
    1455: /* Returns a Python string object holding the UTF-16 encoded value of
    1456:    the Unicode data.
    1457: 
    1458:    If byteorder is not 0, output is written according to the following
    1459:    byte order:
    1460: 
    1461:    byteorder == -1: little endian
    1462:    byteorder == 0:  native byte order (writes a BOM mark)
    1463:    byteorder == 1:  big endian
    1464: 
    1465:    If byteorder is 0, the output string will always start with the
    1466:    Unicode BOM mark (U+FEFF). In the other two modes, no BOM mark is
    1467:    prepended.
    1468: 
    1469:    Note that Py_UNICODE data is being interpreted as UTF-16 reduced to
    1470:    UCS-2. This trick makes it possible to add full UTF-16 capabilities
    1471:    at a later point without compromising the APIs.
    1472: 
    1473: */
    1474: 
    1475: #ifndef Py_LIMITED_API
    1476: PyAPI_FUNC(PyObject*) PyUnicode_EncodeUTF16(
    1477:     const Py_UNICODE *data,     /* Unicode char buffer */
    1478:     Py_ssize_t length,          /* number of Py_UNICODE chars to encode */
    1479:     const char *errors,         /* error handling */
    1480:     int byteorder               /* byteorder to use 0=BOM+native;-1=LE,1=BE */
    1481:     );
    1482: PyAPI_FUNC(PyObject*) _PyUnicode_EncodeUTF16(
    1483:     PyObject* unicode,          /* Unicode object */
    1484:     const char *errors,         /* error handling */
    1485:     int byteorder               /* byteorder to use 0=BOM+native;-1=LE,1=BE */
    1486:     );
    1487: #endif
    1488: 
    1489: /* --- Unicode-Escape Codecs ---------------------------------------------- */
    1490: 
    1491: PyAPI_FUNC(PyObject*) PyUnicode_DecodeUnicodeEscape(
    1492:     const char *string,         /* Unicode-Escape encoded string */
    1493:     Py_ssize_t length,          /* size of string */
    1494:     const char *errors          /* error handling */
    1495:     );
    1496: 
    1497: #ifndef Py_LIMITED_API
    1498: /* Helper for PyUnicode_DecodeUnicodeEscape that detects invalid escape
    1499:    chars. */
    1500: PyAPI_FUNC(PyObject*) _PyUnicode_DecodeUnicodeEscape(
    1501:         const char *string,     /* Unicode-Escape encoded string */
    1502:         Py_ssize_t length,      /* size of string */
    1503:         const char *errors,     /* error handling */
    1504:         const char **first_invalid_escape  /* on return, points to first
    1505:                                               invalid escaped char in
    1506:                                               string. */
    1507: );
    1508: #endif
    1509: 
    1510: PyAPI_FUNC(PyObject*) PyUnicode_AsUnicodeEscapeString(
    1511:     PyObject *unicode           /* Unicode object */
    1512:     );
    1513: 
    1514: #ifndef Py_LIMITED_API
    1515: PyAPI_FUNC(PyObject*) PyUnicode_EncodeUnicodeEscape(
    1516:     const Py_UNICODE *data,     /* Unicode char buffer */
    1517:     Py_ssize_t length           /* Number of Py_UNICODE chars to encode */
    1518:     );
    1519: #endif
    1520: 
    1521: /* --- Raw-Unicode-Escape Codecs ------------------------------------------ */
    1522: 
    1523: PyAPI_FUNC(PyObject*) PyUnicode_DecodeRawUnicodeEscape(
    1524:     const char *string,         /* Raw-Unicode-Escape encoded string */
    1525:     Py_ssize_t length,          /* size of string */
    1526:     const char *errors          /* error handling */
    1527:     );
    1528: 
    1529: PyAPI_FUNC(PyObject*) PyUnicode_AsRawUnicodeEscapeString(
    1530:     PyObject *unicode           /* Unicode object */
    1531:     );
    1532: 
    1533: #ifndef Py_LIMITED_API
    1534: PyAPI_FUNC(PyObject*) PyUnicode_EncodeRawUnicodeEscape(
    1535:     const Py_UNICODE *data,     /* Unicode char buffer */
    1536:     Py_ssize_t length           /* Number of Py_UNICODE chars to encode */
    1537:     );
    1538: #endif
    1539: 
    1540: /* --- Unicode Internal Codec ---------------------------------------------
    1541: 
    1542:     Only for internal use in _codecsmodule.c */
    1543: 
    1544: #ifndef Py_LIMITED_API
    1545: PyObject *_PyUnicode_DecodeUnicodeInternal(
    1546:     const char *string,
    1547:     Py_ssize_t length,
    1548:     const char *errors
    1549:     );
    1550: #endif
    1551: 
    1552: /* --- Latin-1 Codecs -----------------------------------------------------
    1553: 
    1554:    Note: Latin-1 corresponds to the first 256 Unicode ordinals.
    1555: 
    1556: */
    1557: 
    1558: PyAPI_FUNC(PyObject*) PyUnicode_DecodeLatin1(
    1559:     const char *string,         /* Latin-1 encoded string */
    1560:     Py_ssize_t length,          /* size of string */
    1561:     const char *errors          /* error handling */
    1562:     );
    1563: 
    1564: PyAPI_FUNC(PyObject*) PyUnicode_AsLatin1String(
    1565:     PyObject *unicode           /* Unicode object */
    1566:     );
    1567: 
    1568: #ifndef Py_LIMITED_API
    1569: PyAPI_FUNC(PyObject*) _PyUnicode_AsLatin1String(
    1570:     PyObject* unicode,
    1571:     const char* errors);
    1572: 
    1573: PyAPI_FUNC(PyObject*) PyUnicode_EncodeLatin1(
    1574:     const Py_UNICODE *data,     /* Unicode char buffer */
    1575:     Py_ssize_t length,          /* Number of Py_UNICODE chars to encode */
    1576:     const char *errors          /* error handling */
    1577:     );
    1578: #endif
    1579: 
    1580: /* --- ASCII Codecs -------------------------------------------------------
    1581: 
    1582:    Only 7-bit ASCII data is excepted. All other codes generate errors.
    1583: 
    1584: */
    1585: 
    1586: PyAPI_FUNC(PyObject*) PyUnicode_DecodeASCII(
    1587:     const char *string,         /* ASCII encoded string */
    1588:     Py_ssize_t length,          /* size of string */
    1589:     const char *errors          /* error handling */
    1590:     );
    1591: 
    1592: PyAPI_FUNC(PyObject*) PyUnicode_AsASCIIString(
    1593:     PyObject *unicode           /* Unicode object */
    1594:     );
    1595: 
    1596: #ifndef Py_LIMITED_API
    1597: PyAPI_FUNC(PyObject*) _PyUnicode_AsASCIIString(
    1598:     PyObject* unicode,
    1599:     const char* errors);
    1600: 
    1601: PyAPI_FUNC(PyObject*) PyUnicode_EncodeASCII(
    1602:     const Py_UNICODE *data,     /* Unicode char buffer */
    1603:     Py_ssize_t length,          /* Number of Py_UNICODE chars to encode */
    1604:     const char *errors          /* error handling */
    1605:     );
    1606: #endif
    1607: 
    1608: /* --- Character Map Codecs -----------------------------------------------
    1609: 
    1610:    This codec uses mappings to encode and decode characters.
    1611: 
    1612:    Decoding mappings must map byte ordinals (integers in the range from 0 to
    1613:    255) to Unicode strings, integers (which are then interpreted as Unicode
    1614:    ordinals) or None.  Unmapped data bytes (ones which cause a LookupError)
    1615:    as well as mapped to None, 0xFFFE or '\ufffe' are treated as "undefined
    1616:    mapping" and cause an error.
    1617: 
    1618:    Encoding mappings must map Unicode ordinal integers to bytes objects,
    1619:    integers in the range from 0 to 255 or None.  Unmapped character
    1620:    ordinals (ones which cause a LookupError) as well as mapped to
    1621:    None are treated as "undefined mapping" and cause an error.
    1622: 
    1623: */
    1624: 
    1625: PyAPI_FUNC(PyObject*) PyUnicode_DecodeCharmap(
    1626:     const char *string,         /* Encoded string */
    1627:     Py_ssize_t length,          /* size of string */
    1628:     PyObject *mapping,          /* decoding mapping */
    1629:     const char *errors          /* error handling */
    1630:     );
    1631: 
    1632: PyAPI_FUNC(PyObject*) PyUnicode_AsCharmapString(
    1633:     PyObject *unicode,          /* Unicode object */
    1634:     PyObject *mapping           /* encoding mapping */
    1635:     );
    1636: 
    1637: #ifndef Py_LIMITED_API
    1638: PyAPI_FUNC(PyObject*) PyUnicode_EncodeCharmap(
    1639:     const Py_UNICODE *data,     /* Unicode char buffer */
    1640:     Py_ssize_t length,          /* Number of Py_UNICODE chars to encode */
    1641:     PyObject *mapping,          /* encoding mapping */
    1642:     const char *errors          /* error handling */
    1643:     );
    1644: PyAPI_FUNC(PyObject*) _PyUnicode_EncodeCharmap(
    1645:     PyObject *unicode,          /* Unicode object */
    1646:     PyObject *mapping,          /* encoding mapping */
    1647:     const char *errors          /* error handling */
    1648:     );
    1649: #endif
    1650: 
    1651: /* Translate a Py_UNICODE buffer of the given length by applying a
    1652:    character mapping table to it and return the resulting Unicode
    1653:    object.
    1654: 
    1655:    The mapping table must map Unicode ordinal integers to Unicode strings,
    1656:    Unicode ordinal integers or None (causing deletion of the character).
    1657: 
    1658:    Mapping tables may be dictionaries or sequences. Unmapped character
    1659:    ordinals (ones which cause a LookupError) are left untouched and
    1660:    are copied as-is.
    1661: 
    1662: */
    1663: 
    1664: #ifndef Py_LIMITED_API
    1665: PyAPI_FUNC(PyObject *) PyUnicode_TranslateCharmap(
    1666:     const Py_UNICODE *data,     /* Unicode char buffer */
    1667:     Py_ssize_t length,          /* Number of Py_UNICODE chars to encode */
    1668:     PyObject *table,            /* Translate table */
    1669:     const char *errors          /* error handling */
    1670:     );
    1671: #endif
    1672: 
    1673: #ifdef MS_WINDOWS
    1674: 
    1675: /* --- MBCS codecs for Windows -------------------------------------------- */
    1676: 
    1677: PyAPI_FUNC(PyObject*) PyUnicode_DecodeMBCS(
    1678:     const char *string,         /* MBCS encoded string */
    1679:     Py_ssize_t length,          /* size of string */
    1680:     const char *errors          /* error handling */
    1681:     );
    1682: 
    1683: PyAPI_FUNC(PyObject*) PyUnicode_DecodeMBCSStateful(
    1684:     const char *string,         /* MBCS encoded string */
    1685:     Py_ssize_t length,          /* size of string */
    1686:     const char *errors,         /* error handling */
    1687:     Py_ssize_t *consumed        /* bytes consumed */
    1688:     );
    1689: 
    1690: #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000
    1691: PyAPI_FUNC(PyObject*) PyUnicode_DecodeCodePageStateful(
    1692:     int code_page,              /* code page number */
    1693:     const char *string,         /* encoded string */
    1694:     Py_ssize_t length,          /* size of string */
    1695:     const char *errors,         /* error handling */
    1696:     Py_ssize_t *consumed        /* bytes consumed */
    1697:     );
    1698: #endif
    1699: 
    1700: PyAPI_FUNC(PyObject*) PyUnicode_AsMBCSString(
    1701:     PyObject *unicode           /* Unicode object */
    1702:     );
    1703: 
    1704: #ifndef Py_LIMITED_API
    1705: PyAPI_FUNC(PyObject*) PyUnicode_EncodeMBCS(
    1706:     const Py_UNICODE *data,     /* Unicode char buffer */
    1707:     Py_ssize_t length,          /* number of Py_UNICODE chars to encode */
    1708:     const char *errors          /* error handling */
    1709:     );
    1710: #endif
    1711: 
    1712: #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000
    1713: PyAPI_FUNC(PyObject*) PyUnicode_EncodeCodePage(
    1714:     int code_page,              /* code page number */
    1715:     PyObject *unicode,          /* Unicode object */
    1716:     const char *errors          /* error handling */
    1717:     );
    1718: #endif
    1719: 
    1720: #endif /* MS_WINDOWS */
    1721: 
    1722: /* --- Decimal Encoder ---------------------------------------------------- */
    1723: 
    1724: /* Takes a Unicode string holding a decimal value and writes it into
    1725:    an output buffer using standard ASCII digit codes.
    1726: 
    1727:    The output buffer has to provide at least length+1 bytes of storage
    1728:    area. The output string is 0-terminated.
    1729: 
    1730:    The encoder converts whitespace to ' ', decimal characters to their
    1731:    corresponding ASCII digit and all other Latin-1 characters except
    1732:    \0 as-is. Characters outside this range (Unicode ordinals 1-256)
    1733:    are treated as errors. This includes embedded NULL bytes.
    1734: 
    1735:    Error handling is defined by the errors argument:
    1736: 
    1737:       NULL or "strict": raise a ValueError
    1738:       "ignore": ignore the wrong characters (these are not copied to the
    1739:                 output buffer)
    1740:       "replace": replaces illegal characters with '?'
    1741: 
    1742:    Returns 0 on success, -1 on failure.
    1743: 
    1744: */
    1745: 
    1746: #ifndef Py_LIMITED_API
    1747: PyAPI_FUNC(int) PyUnicode_EncodeDecimal(
    1748:     Py_UNICODE *s,              /* Unicode buffer */
    1749:     Py_ssize_t length,          /* Number of Py_UNICODE chars to encode */
    1750:     char *output,               /* Output buffer; must have size >= length */
    1751:     const char *errors          /* error handling */
    1752:     );
    1753: #endif
    1754: 
    1755: /* Transforms code points that have decimal digit property to the
    1756:    corresponding ASCII digit code points.
    1757: 
    1758:    Returns a new Unicode string on success, NULL on failure.
    1759: */
    1760: 
    1761: #ifndef Py_LIMITED_API
    1762: PyAPI_FUNC(PyObject*) PyUnicode_TransformDecimalToASCII(
    1763:     Py_UNICODE *s,              /* Unicode buffer */
    1764:     Py_ssize_t length           /* Number of Py_UNICODE chars to transform */
    1765:     );
    1766: #endif
    1767: 
    1768: /* Similar to PyUnicode_TransformDecimalToASCII(), but takes a PyObject
    1769:    as argument instead of a raw buffer and length.  This function additionally
    1770:    transforms spaces to ASCII because this is what the callers in longobject,
    1771:    floatobject, and complexobject did anyways. */
    1772: 
    1773: #ifndef Py_LIMITED_API
    1774: PyAPI_FUNC(PyObject*) _PyUnicode_TransformDecimalAndSpaceToASCII(
    1775:     PyObject *unicode           /* Unicode object */
    1776:     );
    1777: #endif
    1778: 
    1779: /* --- Locale encoding --------------------------------------------------- */
    1780: 
    1781: #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000
    1782: /* Decode a string from the current locale encoding. The decoder is strict if
    1783:    *surrogateescape* is equal to zero, otherwise it uses the 'surrogateescape'
    1784:    error handler (PEP 383) to escape undecodable bytes. If a byte sequence can
    1785:    be decoded as a surrogate character and *surrogateescape* is not equal to
    1786:    zero, the byte sequence is escaped using the 'surrogateescape' error handler
    1787:    instead of being decoded. *str* must end with a null character but cannot
    1788:    contain embedded null characters. */
    1789: 
    1790: PyAPI_FUNC(PyObject*) PyUnicode_DecodeLocaleAndSize(
    1791:     const char *str,
    1792:     Py_ssize_t len,
    1793:     const char *errors);
    1794: 
    1795: /* Similar to PyUnicode_DecodeLocaleAndSize(), but compute the string
    1796:    length using strlen(). */
    1797: 
    1798: PyAPI_FUNC(PyObject*) PyUnicode_DecodeLocale(
    1799:     const char *str,
    1800:     const char *errors);
    1801: 
    1802: /* Encode a Unicode object to the current locale encoding. The encoder is
    1803:    strict is *surrogateescape* is equal to zero, otherwise the
    1804:    "surrogateescape" error handler is used. Return a bytes object. The string
    1805:    cannot contain embedded null characters. */
    1806: 
    1807: PyAPI_FUNC(PyObject*) PyUnicode_EncodeLocale(
    1808:     PyObject *unicode,
    1809:     const char *errors
    1810:     );
    1811: #endif
    1812: 
    1813: /* --- File system encoding ---------------------------------------------- */
    1814: 
    1815: /* ParseTuple converter: encode str objects to bytes using
    1816:    PyUnicode_EncodeFSDefault(); bytes objects are output as-is. */
    1817: 
    1818: PyAPI_FUNC(int) PyUnicode_FSConverter(PyObject*, void*);
    1819: 
    1820: /* ParseTuple converter: decode bytes objects to unicode using
    1821:    PyUnicode_DecodeFSDefaultAndSize(); str objects are output as-is. */
    1822: 
    1823: PyAPI_FUNC(int) PyUnicode_FSDecoder(PyObject*, void*);
    1824: 
    1825: /* Decode a null-terminated string using Py_FileSystemDefaultEncoding
    1826:    and the "surrogateescape" error handler.
    1827: 
    1828:    If Py_FileSystemDefaultEncoding is not set, fall back to the locale
    1829:    encoding.
    1830: 
    1831:    Use PyUnicode_DecodeFSDefaultAndSize() if the string length is known.
    1832: */
    1833: 
    1834: PyAPI_FUNC(PyObject*) PyUnicode_DecodeFSDefault(
    1835:     const char *s               /* encoded string */
    1836:     );
    1837: 
    1838: /* Decode a string using Py_FileSystemDefaultEncoding
    1839:    and the "surrogateescape" error handler.
    1840: 
    1841:    If Py_FileSystemDefaultEncoding is not set, fall back to the locale
    1842:    encoding.
    1843: */
    1844: 
    1845: PyAPI_FUNC(PyObject*) PyUnicode_DecodeFSDefaultAndSize(
    1846:     const char *s,               /* encoded string */
    1847:     Py_ssize_t size              /* size */
    1848:     );
    1849: 
    1850: /* Encode a Unicode object to Py_FileSystemDefaultEncoding with the
    1851:    "surrogateescape" error handler, and return bytes.
    1852: 
    1853:    If Py_FileSystemDefaultEncoding is not set, fall back to the locale
    1854:    encoding.
    1855: */
    1856: 
    1857: PyAPI_FUNC(PyObject*) PyUnicode_EncodeFSDefault(
    1858:     PyObject *unicode
    1859:     );
    1860: 
    1861: /* --- Methods & Slots ----------------------------------------------------
    1862: 
    1863:    These are capable of handling Unicode objects and strings on input
    1864:    (we refer to them as strings in the descriptions) and return
    1865:    Unicode objects or integers as appropriate. */
    1866: 
    1867: /* Concat two strings giving a new Unicode string. */
    1868: 
    1869: PyAPI_FUNC(PyObject*) PyUnicode_Concat(
    1870:     PyObject *left,             /* Left string */
    1871:     PyObject *right             /* Right string */
    1872:     );
    1873: 
    1874: /* Concat two strings and put the result in *pleft
    1875:    (sets *pleft to NULL on error) */
    1876: 
    1877: PyAPI_FUNC(void) PyUnicode_Append(
    1878:     PyObject **pleft,           /* Pointer to left string */
    1879:     PyObject *right             /* Right string */
    1880:     );
    1881: 
    1882: /* Concat two strings, put the result in *pleft and drop the right object
    1883:    (sets *pleft to NULL on error) */
    1884: 
    1885: PyAPI_FUNC(void) PyUnicode_AppendAndDel(
    1886:     PyObject **pleft,           /* Pointer to left string */
    1887:     PyObject *right             /* Right string */
    1888:     );
    1889: 
    1890: /* Split a string giving a list of Unicode strings.
    1891: 
    1892:    If sep is NULL, splitting will be done at all whitespace
    1893:    substrings. Otherwise, splits occur at the given separator.
    1894: 
    1895:    At most maxsplit splits will be done. If negative, no limit is set.
    1896: 
    1897:    Separators are not included in the resulting list.
    1898: 
    1899: */
    1900: 
    1901: PyAPI_FUNC(PyObject*) PyUnicode_Split(
    1902:     PyObject *s,                /* String to split */
    1903:     PyObject *sep,              /* String separator */
    1904:     Py_ssize_t maxsplit         /* Maxsplit count */
    1905:     );
    1906: 
    1907: /* Dito, but split at line breaks.
    1908: 
    1909:    CRLF is considered to be one line break. Line breaks are not
    1910:    included in the resulting list. */
    1911: 
    1912: PyAPI_FUNC(PyObject*) PyUnicode_Splitlines(
    1913:     PyObject *s,                /* String to split */
    1914:     int keepends                /* If true, line end markers are included */
    1915:     );
    1916: 
    1917: /* Partition a string using a given separator. */
    1918: 
    1919: PyAPI_FUNC(PyObject*) PyUnicode_Partition(
    1920:     PyObject *s,                /* String to partition */
    1921:     PyObject *sep               /* String separator */
    1922:     );
    1923: 
    1924: /* Partition a string using a given separator, searching from the end of the
    1925:    string. */
    1926: 
    1927: PyAPI_FUNC(PyObject*) PyUnicode_RPartition(
    1928:     PyObject *s,                /* String to partition */
    1929:     PyObject *sep               /* String separator */
    1930:     );
    1931: 
    1932: /* Split a string giving a list of Unicode strings.
    1933: 
    1934:    If sep is NULL, splitting will be done at all whitespace
    1935:    substrings. Otherwise, splits occur at the given separator.
    1936: 
    1937:    At most maxsplit splits will be done. But unlike PyUnicode_Split
    1938:    PyUnicode_RSplit splits from the end of the string. If negative,
    1939:    no limit is set.
    1940: 
    1941:    Separators are not included in the resulting list.
    1942: 
    1943: */
    1944: 
    1945: PyAPI_FUNC(PyObject*) PyUnicode_RSplit(
    1946:     PyObject *s,                /* String to split */
    1947:     PyObject *sep,              /* String separator */
    1948:     Py_ssize_t maxsplit         /* Maxsplit count */
    1949:     );
    1950: 
    1951: /* Translate a string by applying a character mapping table to it and
    1952:    return the resulting Unicode object.
    1953: 
    1954:    The mapping table must map Unicode ordinal integers to Unicode strings,
    1955:    Unicode ordinal integers or None (causing deletion of the character).
    1956: 
    1957:    Mapping tables may be dictionaries or sequences. Unmapped character
    1958:    ordinals (ones which cause a LookupError) are left untouched and
    1959:    are copied as-is.
    1960: 
    1961: */
    1962: 
    1963: PyAPI_FUNC(PyObject *) PyUnicode_Translate(
    1964:     PyObject *str,              /* String */
    1965:     PyObject *table,            /* Translate table */
    1966:     const char *errors          /* error handling */
    1967:     );
    1968: 
    1969: /* Join a sequence of strings using the given separator and return
    1970:    the resulting Unicode string. */
    1971: 
    1972: PyAPI_FUNC(PyObject*) PyUnicode_Join(
    1973:     PyObject *separator,        /* Separator string */
    1974:     PyObject *seq               /* Sequence object */
    1975:     );
    1976: 
    1977: #ifndef Py_LIMITED_API
    1978: PyAPI_FUNC(PyObject *) _PyUnicode_JoinArray(
    1979:     PyObject *separator,
    1980:     PyObject **items,
    1981:     Py_ssize_t seqlen
    1982:     );
    1983: #endif /* Py_LIMITED_API */
    1984: 
    1985: /* Return 1 if substr matches str[start:end] at the given tail end, 0
    1986:    otherwise. */
    1987: 
    1988: PyAPI_FUNC(Py_ssize_t) PyUnicode_Tailmatch(
    1989:     PyObject *str,              /* String */
    1990:     PyObject *substr,           /* Prefix or Suffix string */
    1991:     Py_ssize_t start,           /* Start index */
    1992:     Py_ssize_t end,             /* Stop index */
    1993:     int direction               /* Tail end: -1 prefix, +1 suffix */
    1994:     );
    1995: 
    1996: /* Return the first position of substr in str[start:end] using the
    1997:    given search direction or -1 if not found. -2 is returned in case
    1998:    an error occurred and an exception is set. */
    1999: 
    2000: PyAPI_FUNC(Py_ssize_t) PyUnicode_Find(
    2001:     PyObject *str,              /* String */
    2002:     PyObject *substr,           /* Substring to find */
    2003:     Py_ssize_t start,           /* Start index */
    2004:     Py_ssize_t end,             /* Stop index */
    2005:     int direction               /* Find direction: +1 forward, -1 backward */
    2006:     );
    2007: 
    2008: #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000
    2009: /* Like PyUnicode_Find, but search for single character only. */
    2010: PyAPI_FUNC(Py_ssize_t) PyUnicode_FindChar(
    2011:     PyObject *str,
    2012:     Py_UCS4 ch,
    2013:     Py_ssize_t start,
    2014:     Py_ssize_t end,
    2015:     int direction
    2016:     );
    2017: #endif
    2018: 
    2019: /* Count the number of occurrences of substr in str[start:end]. */
    2020: 
    2021: PyAPI_FUNC(Py_ssize_t) PyUnicode_Count(
    2022:     PyObject *str,              /* String */
    2023:     PyObject *substr,           /* Substring to count */
    2024:     Py_ssize_t start,           /* Start index */
    2025:     Py_ssize_t end              /* Stop index */
    2026:     );
    2027: 
    2028: /* Replace at most maxcount occurrences of substr in str with replstr
    2029:    and return the resulting Unicode object. */
    2030: 
    2031: PyAPI_FUNC(PyObject *) PyUnicode_Replace(
    2032:     PyObject *str,              /* String */
    2033:     PyObject *substr,           /* Substring to find */
    2034:     PyObject *replstr,          /* Substring to replace */
    2035:     Py_ssize_t maxcount         /* Max. number of replacements to apply;
    2036:                                    -1 = all */
    2037:     );
    2038: 
    2039: /* Compare two strings and return -1, 0, 1 for less than, equal,
    2040:    greater than resp.
    2041:    Raise an exception and return -1 on error. */
    2042: 
    2043: PyAPI_FUNC(int) PyUnicode_Compare(
    2044:     PyObject *left,             /* Left string */
    2045:     PyObject *right             /* Right string */
    2046:     );
    2047: 
    2048: #ifndef Py_LIMITED_API
    2049: /* Test whether a unicode is equal to ASCII identifier.  Return 1 if true,
    2050:    0 otherwise.  The right argument must be ASCII identifier.
    2051:    Any error occurs inside will be cleared before return. */
    2052: 
    2053: PyAPI_FUNC(int) _PyUnicode_EqualToASCIIId(
    2054:     PyObject *left,             /* Left string */
    2055:     _Py_Identifier *right       /* Right identifier */
    2056:     );
    2057: #endif
    2058: 
    2059: /* Compare a Unicode object with C string and return -1, 0, 1 for less than,
    2060:    equal, and greater than, respectively.  It is best to pass only
    2061:    ASCII-encoded strings, but the function interprets the input string as
    2062:    ISO-8859-1 if it contains non-ASCII characters.
    2063:    This function does not raise exceptions. */
    2064: 
    2065: PyAPI_FUNC(int) PyUnicode_CompareWithASCIIString(
    2066:     PyObject *left,
    2067:     const char *right           /* ASCII-encoded string */
    2068:     );
    2069: 
    2070: #ifndef Py_LIMITED_API
    2071: /* Test whether a unicode is equal to ASCII string.  Return 1 if true,
    2072:    0 otherwise.  The right argument must be ASCII-encoded string.
    2073:    Any error occurs inside will be cleared before return. */
    2074: 
    2075: PyAPI_FUNC(int) _PyUnicode_EqualToASCIIString(
    2076:     PyObject *left,
    2077:     const char *right           /* ASCII-encoded string */
    2078:     );
    2079: #endif
    2080: 
    2081: /* Rich compare two strings and return one of the following:
    2082: 
    2083:    - NULL in case an exception was raised
    2084:    - Py_True or Py_False for successful comparisons
    2085:    - Py_NotImplemented in case the type combination is unknown
    2086: 
    2087:    Possible values for op:
    2088: 
    2089:      Py_GT, Py_GE, Py_EQ, Py_NE, Py_LT, Py_LE
    2090: 
    2091: */
    2092: 
    2093: PyAPI_FUNC(PyObject *) PyUnicode_RichCompare(
    2094:     PyObject *left,             /* Left string */
    2095:     PyObject *right,            /* Right string */
    2096:     int op                      /* Operation: Py_EQ, Py_NE, Py_GT, etc. */
    2097:     );
    2098: 
    2099: /* Apply an argument tuple or dictionary to a format string and return
    2100:    the resulting Unicode string. */
    2101: 
    2102: PyAPI_FUNC(PyObject *) PyUnicode_Format(
    2103:     PyObject *format,           /* Format string */
    2104:     PyObject *args              /* Argument tuple or dictionary */
    2105:     );
    2106: 
    2107: /* Checks whether element is contained in container and return 1/0
    2108:    accordingly.
    2109: 
    2110:    element has to coerce to a one element Unicode string. -1 is
    2111:    returned in case of an error. */
    2112: 
    2113: PyAPI_FUNC(int) PyUnicode_Contains(
    2114:     PyObject *container,        /* Container string */
    2115:     PyObject *element           /* Element string */
    2116:     );
    2117: 
    2118: /* Checks whether argument is a valid identifier. */
    2119: 
    2120: PyAPI_FUNC(int) PyUnicode_IsIdentifier(PyObject *s);
    2121: 
    2122: #ifndef Py_LIMITED_API
    2123: /* Externally visible for str.strip(unicode) */
    2124: PyAPI_FUNC(PyObject *) _PyUnicode_XStrip(
    2125:     PyObject *self,
    2126:     int striptype,
    2127:     PyObject *sepobj
    2128:     );
    2129: #endif
    2130: 
    2131: /* Using explicit passed-in values, insert the thousands grouping
    2132:    into the string pointed to by buffer.  For the argument descriptions,
    2133:    see Objects/stringlib/localeutil.h */
    2134: #ifndef Py_LIMITED_API
    2135: PyAPI_FUNC(Py_ssize_t) _PyUnicode_InsertThousandsGrouping(
    2136:     PyObject *unicode,
    2137:     Py_ssize_t index,
    2138:     Py_ssize_t n_buffer,
    2139:     void *digits,
    2140:     Py_ssize_t n_digits,
    2141:     Py_ssize_t min_width,
    2142:     const char *grouping,
    2143:     PyObject *thousands_sep,
    2144:     Py_UCS4 *maxchar);
    2145: #endif
    2146: /* === Characters Type APIs =============================================== */
    2147: 
    2148: /* Helper array used by Py_UNICODE_ISSPACE(). */
    2149: 
    2150: #ifndef Py_LIMITED_API
    2151: PyAPI_DATA(const unsigned char) _Py_ascii_whitespace[];
    2152: 
    2153: /* These should not be used directly. Use the Py_UNICODE_IS* and
    2154:    Py_UNICODE_TO* macros instead.
    2155: 
    2156:    These APIs are implemented in Objects/unicodectype.c.
    2157: 
    2158: */
    2159: 
    2160: PyAPI_FUNC(int) _PyUnicode_IsLowercase(
    2161:     Py_UCS4 ch       /* Unicode character */
    2162:     );
    2163: 
    2164: PyAPI_FUNC(int) _PyUnicode_IsUppercase(
    2165:     Py_UCS4 ch       /* Unicode character */
    2166:     );
    2167: 
    2168: PyAPI_FUNC(int) _PyUnicode_IsTitlecase(
    2169:     Py_UCS4 ch       /* Unicode character */
    2170:     );
    2171: 
    2172: PyAPI_FUNC(int) _PyUnicode_IsXidStart(
    2173:     Py_UCS4 ch       /* Unicode character */
    2174:     );
    2175: 
    2176: PyAPI_FUNC(int) _PyUnicode_IsXidContinue(
    2177:     Py_UCS4 ch       /* Unicode character */
    2178:     );
    2179: 
    2180: PyAPI_FUNC(int) _PyUnicode_IsWhitespace(
    2181:     const Py_UCS4 ch         /* Unicode character */
    2182:     );
    2183: 
    2184: PyAPI_FUNC(int) _PyUnicode_IsLinebreak(
    2185:     const Py_UCS4 ch         /* Unicode character */
    2186:     );
    2187: 
    2188: PyAPI_FUNC(Py_UCS4) _PyUnicode_ToLowercase(
    2189:     Py_UCS4 ch       /* Unicode character */
    2190:     );
    2191: 
    2192: PyAPI_FUNC(Py_UCS4) _PyUnicode_ToUppercase(
    2193:     Py_UCS4 ch       /* Unicode character */
    2194:     );
    2195: 
    2196: PyAPI_FUNC(Py_UCS4) _PyUnicode_ToTitlecase(
    2197:     Py_UCS4 ch       /* Unicode character */
    2198:     );
    2199: 
    2200: PyAPI_FUNC(int) _PyUnicode_ToLowerFull(
    2201:     Py_UCS4 ch,       /* Unicode character */
    2202:     Py_UCS4 *res
    2203:     );
    2204: 
    2205: PyAPI_FUNC(int) _PyUnicode_ToTitleFull(
    2206:     Py_UCS4 ch,       /* Unicode character */
    2207:     Py_UCS4 *res
    2208:     );
    2209: 
    2210: PyAPI_FUNC(int) _PyUnicode_ToUpperFull(
    2211:     Py_UCS4 ch,       /* Unicode character */
    2212:     Py_UCS4 *res
    2213:     );
    2214: 
    2215: PyAPI_FUNC(int) _PyUnicode_ToFoldedFull(
    2216:     Py_UCS4 ch,       /* Unicode character */
    2217:     Py_UCS4 *res
    2218:     );
    2219: 
    2220: PyAPI_FUNC(int) _PyUnicode_IsCaseIgnorable(
    2221:     Py_UCS4 ch         /* Unicode character */
    2222:     );
    2223: 
    2224: PyAPI_FUNC(int) _PyUnicode_IsCased(
    2225:     Py_UCS4 ch         /* Unicode character */
    2226:     );
    2227: 
    2228: PyAPI_FUNC(int) _PyUnicode_ToDecimalDigit(
    2229:     Py_UCS4 ch       /* Unicode character */
    2230:     );
    2231: 
    2232: PyAPI_FUNC(int) _PyUnicode_ToDigit(
    2233:     Py_UCS4 ch       /* Unicode character */
    2234:     );
    2235: 
    2236: PyAPI_FUNC(double) _PyUnicode_ToNumeric(
    2237:     Py_UCS4 ch       /* Unicode character */
    2238:     );
    2239: 
    2240: PyAPI_FUNC(int) _PyUnicode_IsDecimalDigit(
    2241:     Py_UCS4 ch       /* Unicode character */
    2242:     );
    2243: 
    2244: PyAPI_FUNC(int) _PyUnicode_IsDigit(
    2245:     Py_UCS4 ch       /* Unicode character */
    2246:     );
    2247: 
    2248: PyAPI_FUNC(int) _PyUnicode_IsNumeric(
    2249:     Py_UCS4 ch       /* Unicode character */
    2250:     );
    2251: 
    2252: PyAPI_FUNC(int) _PyUnicode_IsPrintable(
    2253:     Py_UCS4 ch       /* Unicode character */
    2254:     );
    2255: 
    2256: PyAPI_FUNC(int) _PyUnicode_IsAlpha(
    2257:     Py_UCS4 ch       /* Unicode character */
    2258:     );
    2259: 
    2260: PyAPI_FUNC(size_t) Py_UNICODE_strlen(
    2261:     const Py_UNICODE *u
    2262:     );
    2263: 
    2264: PyAPI_FUNC(Py_UNICODE*) Py_UNICODE_strcpy(
    2265:     Py_UNICODE *s1,
    2266:     const Py_UNICODE *s2);
    2267: 
    2268: PyAPI_FUNC(Py_UNICODE*) Py_UNICODE_strcat(
    2269:     Py_UNICODE *s1, const Py_UNICODE *s2);
    2270: 
    2271: PyAPI_FUNC(Py_UNICODE*) Py_UNICODE_strncpy(
    2272:     Py_UNICODE *s1,
    2273:     const Py_UNICODE *s2,
    2274:     size_t n);
    2275: 
    2276: PyAPI_FUNC(int) Py_UNICODE_strcmp(
    2277:     const Py_UNICODE *s1,
    2278:     const Py_UNICODE *s2
    2279:     );
    2280: 
    2281: PyAPI_FUNC(int) Py_UNICODE_strncmp(
    2282:     const Py_UNICODE *s1,
    2283:     const Py_UNICODE *s2,
    2284:     size_t n
    2285:     );
    2286: 
    2287: PyAPI_FUNC(Py_UNICODE*) Py_UNICODE_strchr(
    2288:     const Py_UNICODE *s,
    2289:     Py_UNICODE c
    2290:     );
    2291: 
    2292: PyAPI_FUNC(Py_UNICODE*) Py_UNICODE_strrchr(
    2293:     const Py_UNICODE *s,
    2294:     Py_UNICODE c
    2295:     );
    2296: 
    2297: PyAPI_FUNC(PyObject*) _PyUnicode_FormatLong(PyObject *, int, int, int);
    2298: 
    2299: /* Create a copy of a unicode string ending with a nul character. Return NULL
    2300:    and raise a MemoryError exception on memory allocation failure, otherwise
    2301:    return a new allocated buffer (use PyMem_Free() to free the buffer). */
    2302: 
    2303: PyAPI_FUNC(Py_UNICODE*) PyUnicode_AsUnicodeCopy(
    2304:     PyObject *unicode
    2305:     );
    2306: #endif /* Py_LIMITED_API */
    2307: 
    2308: #if defined(Py_DEBUG) && !defined(Py_LIMITED_API)
    2309: PyAPI_FUNC(int) _PyUnicode_CheckConsistency(
    2310:     PyObject *op,
    2311:     int check_content);
    2312: #elif !defined(NDEBUG)
    2313: /* For asserts that call _PyUnicode_CheckConsistency(), which would
    2314:  * otherwise be a problem when building with asserts but without Py_DEBUG. */
    2315: #define _PyUnicode_CheckConsistency(op, check_content) PyUnicode_Check(op)
    2316: #endif
    2317: 
    2318: #ifndef Py_LIMITED_API
    2319: /* Return an interned Unicode object for an Identifier; may fail if there is no memory.*/
    2320: PyAPI_FUNC(PyObject*) _PyUnicode_FromId(_Py_Identifier*);
    2321: /* Clear all static strings. */
    2322: PyAPI_FUNC(void) _PyUnicode_ClearStaticStrings(void);
    2323: 
    2324: /* Fast equality check when the inputs are known to be exact unicode types
    2325:    and where the hash values are equal (i.e. a very probable match) */
    2326: PyAPI_FUNC(int) _PyUnicode_EQ(PyObject *, PyObject *);
    2327: #endif /* !Py_LIMITED_API */
    2328: 
    2329: #ifdef __cplusplus
    2330: }
    2331: #endif
    2332: #endif /* !Py_UNICODEOBJECT_H */
    2333: