编解码器注册和支持函数 ¶

编解码器查找 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 被返回。

PyObject * PyCodec_Encoder ( const char  *encoding ) ¶

Get an encoder function for the given encoding .

PyObject * PyCodec_Decoder ( const char  *encoding ) ¶

Get a decoder function for the given encoding .

PyObject * PyCodec_IncrementalEncoder ( const char  *encoding , const char  *errors ) ¶

Get an IncrementalEncoder 对象为给定 encoding .

PyObject * PyCodec_IncrementalDecoder ( const char  *encoding , const char  *errors ) ¶

Get an IncrementalDecoder 对象为给定 encoding .

PyObject * PyCodec_StreamReader ( const char  *encoding , PyObject  *stream , const char  *errors ) ¶

Get a StreamReader factory function for the given encoding .

PyObject * PyCodec_StreamWriter ( const char  *encoding , PyObject  *stream , const char  *errors ) ¶

Get a StreamWriter factory function for the given encoding .

为 Unicode 编码错误处理程序注册 API ¶

int PyCodec_RegisterError ( const char  *name , PyObject  *error ) ¶

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 异常对象 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.

返回 0 当成功时， -1 当出错时。

PyObject * PyCodec_LookupError ( const char  *name ) ¶

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 ) ¶

引发 exc 作为异常。

PyObject * PyCodec_IgnoreErrors ( PyObject  *exc ) ¶

Ignore the unicode error, skipping the faulty input.

PyObject * PyCodec_ReplaceErrors ( PyObject  *exc ) ¶

替换 Unicode 编码错误采用 ? or U+FFFD .

PyObject * PyCodec_XMLCharRefReplaceErrors ( PyObject  *exc ) ¶

Replace the unicode encode error with XML character references.

PyObject * PyCodec_BackslashReplaceErrors ( PyObject  *exc ) ¶

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

PyObject * PyCodec_NameReplaceErrors ( PyObject  *exc ) ¶

替换 Unicode 编码错误采用 \N{...} 转义。

3.5 版新增。