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Unicode Objects and Codecs

Unicode Objects​

Unicode Type​

  • type Py_UCS4

  • type Py_UCS2

  • type Py_UCS1

  • type Py_UNICODE

  • type PyASCIIObject

  • type PyCompactUnicodeObject

  • type PyUnicodeObject

  • PyTypeObject PyUnicode_Type

  • int PyUnicode_Check(PyObject *o)

  • int PyUnicode_CheckExact(PyObject *o)

  • int PyUnicode_READY(PyObject *o)

  • Py_ssize_t PyUnicode_GET_LENGTH(PyObject *o)

  • Py_UCS1 *PyUnicode_1BYTE_DATA(PyObject *o)

  • Py_UCS2 *PyUnicode_2BYTE_DATA(PyObject *o)

  • Py_UCS4 *PyUnicode_4BYTE_DATA(PyObject *o)

  • PyUnicode_WCHAR_KIND

  • PyUnicode_1BYTE_KIND

  • PyUnicode_2BYTE_KIND

  • PyUnicode_4BYTE_KIND

  • int PyUnicode_KIND(PyObject *o)

  • void *PyUnicode_DATA(PyObject *o)

  • void PyUnicode_WRITE(int kind, void *data, Py_ssize_t index, Py_UCS4 value)

  • Py_UCS4 PyUnicode_READ(int kind, void *data, Py_ssize_t index)

  • Py_UCS4 PyUnicode_READ_CHAR(PyObject *o, Py_ssize_t index)

  • Py_UCS4 PyUnicode_MAX_CHAR_VALUE(PyObject *o)

  • Py_ssize_t PyUnicode_GET_SIZE(PyObject *o)

  • Py_ssize_t PyUnicode_GET_DATA_SIZE(PyObject *o)

  • Py_UNICODE *PyUnicode_AS_UNICODE(PyObject *o)

  • const char *PyUnicode_AS_DATA(PyObject *o)

  • int PyUnicode_IsIdentifier(PyObject *o)

Unicode Character Properties​

  • int Py_UNICODE_ISSPACE(Py_UCS4 ch)

  • int Py_UNICODE_ISLOWER(Py_UCS4 ch)

  • int Py_UNICODE_ISUPPER(Py_UCS4 ch)

  • int Py_UNICODE_ISTITLE(Py_UCS4 ch)

  • int Py_UNICODE_ISLINEBREAK(Py_UCS4 ch)

  • int Py_UNICODE_ISDECIMAL(Py_UCS4 ch)

  • int Py_UNICODE_ISDIGIT(Py_UCS4 ch)

  • int Py_UNICODE_ISNUMERIC(Py_UCS4 ch)

  • int Py_UNICODE_ISALPHA(Py_UCS4 ch)

  • int Py_UNICODE_ISALNUM(Py_UCS4 ch)

  • int Py_UNICODE_ISPRINTABLE(Py_UCS4 ch)

  • Py_UCS4 Py_UNICODE_TOLOWER(Py_UCS4 ch)

  • Py_UCS4 Py_UNICODE_TOUPPER(Py_UCS4 ch)

  • Py_UCS4 Py_UNICODE_TOTITLE(Py_UCS4 ch)

  • int Py_UNICODE_TODECIMAL(Py_UCS4 ch)

  • int Py_UNICODE_TODIGIT(Py_UCS4 ch)

  • double Py_UNICODE_TONUMERIC(Py_UCS4 ch)

  • Py_UNICODE_IS_SURROGATE(ch)

  • Py_UNICODE_IS_HIGH_SURROGATE(ch)

  • Py_UNICODE_IS_LOW_SURROGATE(ch)

  • Py_UNICODE_JOIN_SURROGATES(high, low)

Creating and accessing Unicode strings​

  • PyObject *PyUnicode_New(Py_ssize_t size, Py_UCS4 maxchar)
  • PyObject *PyUnicode_FromKindAndData(int kind, const void *buffer, Py_ssize_t size)
  • PyObject *PyUnicode_FromStringAndSize(const char *u, Py_ssize_t size)
  • PyObject *PyUnicode_FromString(const char *u)
  • PyObject *PyUnicode_FromFormat(const char *format, ...)
  • PyObject *PyUnicode_FromFormatV(const char *format, va_list vargs)
  • PyObject *PyUnicode_FromObject(PyObject *obj)
  • PyObject *PyUnicode_FromEncodedObject(PyObject *obj, const char *encoding, const char *errors)
  • Py_ssize_t PyUnicode_GetLength(PyObject *unicode)
  • Py_ssize_t PyUnicode_CopyCharacters(PyObject *to, Py_ssize_t to_start, PyObject *from, Py_ssize_t from_start, Py_ssize_t how_many)
  • Py_ssize_t PyUnicode_Fill(PyObject *unicode, Py_ssize_t start, Py_ssize_t length, Py_UCS4 fill_char)
  • int PyUnicode_WriteChar(PyObject *unicode, Py_ssize_t index, Py_UCS4 character)
  • Py_UCS4 PyUnicode_ReadChar(PyObject *unicode, Py_ssize_t index)
  • PyObject *PyUnicode_Substring(PyObject *str, Py_ssize_t start, Py_ssize_t end)
  • Py_UCS4 *PyUnicode_AsUCS4(PyObject *u, Py_UCS4 *buffer, Py_ssize_t buflen, int copy_null)
  • Py_UCS4 *PyUnicode_AsUCS4Copy(PyObject *u)

Built-in Codecs​

Setting encoding to NULL causes the default encoding to be used which is UTF-8

Error handling is set by errors which may also be set to NULL meaning to use the default handling defined for the codec. Default error handling for all built-in codecs is “strict” (ValueError is raised)

Generic Codecs​

  • PyObject *PyUnicode_Decode(const char *s, Py_ssize_t size, const char *encoding, const char *errors)
  • PyObject *PyUnicode_AsEncodedString(PyObject *unicode, const char *encoding, const char *errors)

UTF-8 Codecs​

  • PyObject *PyUnicode_DecodeUTF8(const char *s, Py_ssize_t size, const char *errors)
  • PyObject *PyUnicode_DecodeUTF8Stateful(const char *s, Py_ssize_t size, const char *errors, Py_ssize_t *consumed)
  • PyObject *PyUnicode_AsUTF8String(PyObject *unicode)
  • const char *PyUnicode_AsUTF8AndSize(PyObject *unicode, Py_ssize_t *size)
  • const char *PyUnicode_AsUTF8(PyObject *unicode)

Latin-1 Codecs​

  • PyObject *PyUnicode_DecodeLatin1(const char *s, Py_ssize_t size, const char *errors)
  • PyObject *PyUnicode_AsLatin1String(PyObject *unicode)

ASCII Codecs​

  • PyObject *PyUnicode_DecodeASCII(const char *s, Py_ssize_t size, const char *errors)
  • PyObject *PyUnicode_AsASCIIString(PyObject *unicode)

Methods and Slot Functions​

  • PyObject *PyUnicode_Concat(PyObject *left, PyObject *right)
  • PyObject *PyUnicode_Split(PyObject *s, PyObject *sep, Py_ssize_t maxsplit)
  • PyObject *PyUnicode_Splitlines(PyObject *s, int keepend)
  • PyObject *PyUnicode_Join(PyObject *separator, PyObject *seq)
  • Py_ssize_t PyUnicode_Tailmatch(PyObject *str, PyObject *substr, Py_ssize_t start, Py_ssize_t end, int direction)
  • Py_ssize_t PyUnicode_Find(PyObject *str, PyObject *substr, Py_ssize_t start, Py_ssize_t end, int direction)
  • Py_ssize_t PyUnicode_FindChar(PyObject *str, Py_UCS4 ch, Py_ssize_t start, Py_ssize_t end, int direction)
  • Py_ssize_t PyUnicode_Count(PyObject *str, PyObject *substr, Py_ssize_t start, Py_ssize_t end)
  • PyObject *PyUnicode_Replace(PyObject *str, PyObject *substr, PyObject *replstr, Py_ssize_t maxcount)
  • int PyUnicode_Compare(PyObject *left, PyObject *right)
  • int PyUnicode_CompareWithASCIIString(PyObject *uni, const char *string)
  • PyObject *PyUnicode_RichCompare(PyObject *left, PyObject *right, int op)
  • PyObject *PyUnicode_Format(PyObject *format, PyObject *args)
  • int PyUnicode_Contains(PyObject *container, PyObject *element)
  • void PyUnicode_InternInPlace(PyObject **string)
  • PyObject *PyUnicode_InternFromString(const char *v)
最后由 Colin Zuo 于 更新