Codec registry and support functions
************************************

int PyCodec_Register(PyObject *search_function)
    * Część stabilnego ABI.*

   Register a new codec search function.

   As side effect, this tries to load the "encodings" package, if not
   yet done, to make sure that it is always first in the list of
   search functions.

int PyCodec_Unregister(PyObject *search_function)
    * Część stabilnego ABI od wersji 3.10.*

   Unregister a codec search function and clear the registry's cache.
   If the search function is not registered, do nothing. Return 0 on
   success. Raise an exception and return -1 on error.

   Nowe w wersji 3.10.

int PyCodec_KnownEncoding(const char *encoding)
    * Część stabilnego ABI.*

   Return "1" or "0" depending on whether there is a registered codec
   for the given *encoding*.  This function always succeeds.

PyObject *PyCodec_Encode(PyObject *object, const char *encoding, const char *errors)
    *Wartość zwracana: nowa referencja.** Część stabilnego ABI.*

   Generic codec based encoding API.

   *object* is passed through the encoder function found for the given
   *encoding* using the error handling method defined by *errors*.
   *errors* may be "NULL" to use the default method defined for the
   codec.  Raises a "LookupError" if no encoder can be found.

PyObject *PyCodec_Decode(PyObject *object, const char *encoding, const char *errors)
    *Wartość zwracana: nowa referencja.** Część stabilnego ABI.*

   Generic codec based decoding API.

   *object* is passed through the decoder function found for the given
   *encoding* using the error handling method defined by *errors*.
   *errors* may be "NULL" to use the default method defined for the
   codec.  Raises a "LookupError" if no encoder can be found.


Codec lookup API
================

In the following functions, the *encoding* string is looked up
converted to all lower-case characters, which makes encodings looked
up through this mechanism effectively case-insensitive.  If no codec
is found, a "KeyError" is set and "NULL" returned.

PyObject *PyCodec_Encoder(const char *encoding)
    *Wartość zwracana: nowa referencja.** Część stabilnego ABI.*

   Get an encoder function for the given *encoding*.

PyObject *PyCodec_Decoder(const char *encoding)
    *Wartość zwracana: nowa referencja.** Część stabilnego ABI.*

   Get a decoder function for the given *encoding*.

PyObject *PyCodec_IncrementalEncoder(const char *encoding, const char *errors)
    *Wartość zwracana: nowa referencja.** Część stabilnego ABI.*

   Get an "IncrementalEncoder" object for the given *encoding*.

PyObject *PyCodec_IncrementalDecoder(const char *encoding, const char *errors)
    *Wartość zwracana: nowa referencja.** Część stabilnego ABI.*

   Get an "IncrementalDecoder" object for the given *encoding*.

PyObject *PyCodec_StreamReader(const char *encoding, PyObject *stream, const char *errors)
    *Wartość zwracana: nowa referencja.** Część stabilnego ABI.*

   Get a "StreamReader" factory function for the given *encoding*.

PyObject *PyCodec_StreamWriter(const char *encoding, PyObject *stream, const char *errors)
    *Wartość zwracana: nowa referencja.** Część stabilnego ABI.*

   Get a "StreamWriter" factory function for the given *encoding*.


Registry API for Unicode encoding error handlers
================================================

int PyCodec_RegisterError(const char *name, PyObject *error)
    * Część stabilnego ABI.*

   Register the error handling callback function *error* under the
   given *name*. This callback function will be called by a codec when
   it encounters unencodable characters/undecodable bytes and *name*
   is specified as the error parameter in the call to the
   encode/decode function.

   The callback gets a single argument, an instance of
   "UnicodeEncodeError", "UnicodeDecodeError" or
   "UnicodeTranslateError" that holds information about the
   problematic sequence of characters or bytes and their offset in the
   original string (see Unicode Exception Objects for functions to
   extract this information).  The callback must either raise the
   given exception, or return a two-item tuple containing the
   replacement for the problematic sequence, and an integer giving the
   offset in the original string at which encoding/decoding should be
   resumed.

   Return "0" on success, "-1" on error.

PyObject *PyCodec_LookupError(const char *name)
    *Wartość zwracana: nowa referencja.** Część stabilnego ABI.*

   Lookup the error handling callback function registered under
   *name*.  As a special case "NULL" can be passed, in which case the
   error handling callback for "strict" will be returned.

PyObject *PyCodec_StrictErrors(PyObject *exc)
    *Wartość zwracana: zawsze NULL.** Część stabilnego ABI.*

   Raise *exc* as an exception.

PyObject *PyCodec_IgnoreErrors(PyObject *exc)
    *Wartość zwracana: nowa referencja.** Część stabilnego ABI.*

   Ignore the unicode error, skipping the faulty input.

PyObject *PyCodec_ReplaceErrors(PyObject *exc)
    *Wartość zwracana: nowa referencja.** Część stabilnego ABI.*

   Replace the unicode encode error with "?" or "U+FFFD".

PyObject *PyCodec_XMLCharRefReplaceErrors(PyObject *exc)
    *Wartość zwracana: nowa referencja.** Część stabilnego ABI.*

   Replace the unicode encode error with XML character references.

PyObject *PyCodec_BackslashReplaceErrors(PyObject *exc)
    *Wartość zwracana: nowa referencja.** Część stabilnego ABI.*

   Replace the unicode encode error with backslash escapes ("\x", "\u"
   and "\U").

PyObject *PyCodec_NameReplaceErrors(PyObject *exc)
    *Wartość zwracana: nowa referencja.** Część stabilnego ABI od
   wersji 3.7.*

   Replace the unicode encode error with "\N{...}" escapes.

   Nowe w wersji 3.5.
