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from .object cimport PyObject
cdef extern from "Python.h":
ctypedef struct va_list
############################################################################
# 7.3.1 String Objects
############################################################################
# These functions raise TypeError when expecting a string
# parameter and are called with a non-string parameter.
# PyStringObject
# This subtype of PyObject represents a Python bytes object.
# PyTypeObject PyBytes_Type
# This instance of PyTypeObject represents the Python bytes type;
# it is the same object as bytes and types.BytesType in the Python
# layer.
bint PyBytes_Check(object o)
# Return true if the object o is a string object or an instance of
# a subtype of the string type.
bint PyBytes_CheckExact(object o)
# Return true if the object o is a string object, but not an instance of a subtype of the string type.
bytes PyBytes_FromString(char *v)
# Return value: New reference.
# Return a new string object with the value v on success, and NULL
# on failure. The parameter v must not be NULL; it will not be
# checked.
bytes PyBytes_FromStringAndSize(char *v, Py_ssize_t len)
# Return value: New reference.
# Return a new string object with the value v and length len on
# success, and NULL on failure. If v is NULL, the contents of the
# string are uninitialized.
bytes PyBytes_FromFormat(char *format, ...)
# Return value: New reference.
# Take a C printf()-style format string and a variable number of
# arguments, calculate the size of the resulting Python string and
# return a string with the values formatted into it. The variable
# arguments must be C types and must correspond exactly to the
# format characters in the format string. The following format
# characters are allowed:
# Format Characters Type Comment
# %% n/a The literal % character.
# %c int A single character, represented as an C int.
# %d int Exactly equivalent to printf("%d").
# %u unsigned int Exactly equivalent to printf("%u").
# %ld long Exactly equivalent to printf("%ld").
# %lu unsigned long Exactly equivalent to printf("%lu").
# %zd Py_ssize_t Exactly equivalent to printf("%zd").
# %zu size_t Exactly equivalent to printf("%zu").
# %i int Exactly equivalent to printf("%i").
# %x int Exactly equivalent to printf("%x").
# %s char* A null-terminated C character array.
# %p void* The hex representation of a C pointer.
# Mostly equivalent to printf("%p") except that it is guaranteed to
# start with the literal 0x regardless of what the platform's printf
# yields.
# An unrecognized format character causes all the rest of the
# format string to be copied as-is to the result string, and any
# extra arguments discarded.
bytes PyBytes_FromFormatV(char *format, va_list vargs)
# Return value: New reference.
# Identical to PyBytes_FromFormat() except that it takes exactly two arguments.
Py_ssize_t PyBytes_Size(object string) except -1
# Return the length of the string in string object string.
Py_ssize_t PyBytes_GET_SIZE(object string)
# Macro form of PyBytes_Size() but without error checking.
char* PyBytes_AsString(object string) except NULL
# Return a NUL-terminated representation of the contents of
# string. The pointer refers to the internal buffer of string, not
# a copy. The data must not be modified in any way, unless the
# string was just created using PyBytes_FromStringAndSize(NULL,
# size). It must not be deallocated. If string is a Unicode
# object, this function computes the default encoding of string
# and operates on that. If string is not a string object at all,
# PyBytes_AsString() returns NULL and raises TypeError.
char* PyBytes_AS_STRING(object string)
# Macro form of PyBytes_AsString() but without error
# checking. Only string objects are supported; no Unicode objects
# should be passed.
int PyBytes_AsStringAndSize(object obj, char **buffer, Py_ssize_t *length) except -1
# Return a NULL-terminated representation of the contents of the
# object obj through the output variables buffer and length.
#
# The function accepts both string and Unicode objects as
# input. For Unicode objects it returns the default encoded
# version of the object. If length is NULL, the resulting buffer
# may not contain NUL characters; if it does, the function returns
# -1 and a TypeError is raised.
# The buffer refers to an internal string buffer of obj, not a
# copy. The data must not be modified in any way, unless the
# string was just created using PyBytes_FromStringAndSize(NULL,
# size). It must not be deallocated. If string is a Unicode
# object, this function computes the default encoding of string
# and operates on that. If string is not a string object at all,
# PyBytes_AsStringAndSize() returns -1 and raises TypeError.
void PyBytes_Concat(PyObject **string, object newpart)
# Create a new string object in *string containing the contents of
# newpart appended to string; the caller will own the new
# reference. The reference to the old value of string will be
# stolen. If the new string cannot be created, the old reference
# to string will still be discarded and the value of *string will
# be set to NULL; the appropriate exception will be set.
void PyBytes_ConcatAndDel(PyObject **string, object newpart)
# Create a new string object in *string containing the contents of
# newpart appended to string. This version decrements the
# reference count of newpart.
int _PyBytes_Resize(PyObject **string, Py_ssize_t newsize) except -1
# A way to resize a string object even though it is
# ``immutable''. Only use this to build up a brand new string
# object; don't use this if the string may already be known in
# other parts of the code. It is an error to call this function if
# the refcount on the input string object is not one. Pass the
# address of an existing string object as an lvalue (it may be
# written into), and the new size desired. On success, *string
# holds the resized string object and 0 is returned; the address
# in *string may differ from its input value. If the reallocation
# fails, the original string object at *string is deallocated,
# *string is set to NULL, a memory exception is set, and -1 is
# returned.
bytes PyBytes_Format(object format, object args)
# Return value: New reference. Return a new string object from
# format and args. Analogous to format % args. The args argument
# must be a tuple.
void PyBytes_InternInPlace(PyObject **string)
# Intern the argument *string in place. The argument must be the
# address of a pointer variable pointing to a Python string
# object. If there is an existing interned string that is the same
# as *string, it sets *string to it (decrementing the reference
# count of the old string object and incrementing the reference
# count of the interned string object), otherwise it leaves
# *string alone and interns it (incrementing its reference
# count). (Clarification: even though there is a lot of talk about
# reference counts, think of this function as
# reference-count-neutral; you own the object after the call if
# and only if you owned it before the call.)
bytes PyBytes_InternFromString(char *v)
# Return value: New reference.
# A combination of PyBytes_FromString() and
# PyBytes_InternInPlace(), returning either a new string object
# that has been interned, or a new (``owned'') reference to an
# earlier interned string object with the same value.
object PyBytes_Decode(char *s, Py_ssize_t size, char *encoding, char *errors)
# Return value: New reference.
# Create an object by decoding size bytes of the encoded buffer s
# using the codec registered for encoding. encoding and errors
# have the same meaning as the parameters of the same name in the
# unicode() built-in function. The codec to be used is looked up
# using the Python codec registry. Return NULL if an exception was
# raised by the codec.
object PyBytes_AsDecodedObject(object str, char *encoding, char *errors)
# Return value: New reference.
# Decode a string object by passing it to the codec registered for
# encoding and return the result as Python object. encoding and
# errors have the same meaning as the parameters of the same name
# in the string encode() method. The codec to be used is looked up
# using the Python codec registry. Return NULL if an exception was
# raised by the codec.
object PyBytes_Encode(char *s, Py_ssize_t size, char *encoding, char *errors)
# Return value: New reference.
# Encode the char buffer of the given size by passing it to the
# codec registered for encoding and return a Python
# object. encoding and errors have the same meaning as the
# parameters of the same name in the string encode() method. The
# codec to be used is looked up using the Python codec
# registry. Return NULL if an exception was raised by the codec.
object PyBytes_AsEncodedObject(object str, char *encoding, char *errors)
# Return value: New reference.
# Encode a string object using the codec registered for encoding
# and return the result as Python object. encoding and errors have
# the same meaning as the parameters of the same name in the
# string encode() method. The codec to be used is looked up using
# the Python codec registry. Return NULL if an exception was
# raised by the codec.
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