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#ifndef Py_INTERNAL_BYTESOBJECT_H
#define Py_INTERNAL_BYTESOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef Py_BUILD_CORE
# error "this header requires Py_BUILD_CORE define"
#endif
extern PyObject* _PyBytes_FormatEx(
const char *format,
Py_ssize_t format_len,
PyObject *args,
int use_bytearray);
extern PyObject* _PyBytes_FromHex(
PyObject *string,
int use_bytearray);
// Helper for PyBytes_DecodeEscape that detects invalid escape chars.
// Export for test_peg_generator.
PyAPI_FUNC(PyObject*) _PyBytes_DecodeEscape2(const char *, Py_ssize_t,
const char *,
int *, const char **);
// Substring Search.
//
// Returns the index of the first occurrence of
// a substring ("needle") in a larger text ("haystack").
// If the needle is not found, return -1.
// If the needle is found, add offset to the index.
//
// Export for 'mmap' shared extension.
PyAPI_FUNC(Py_ssize_t)
_PyBytes_Find(const char *haystack, Py_ssize_t len_haystack,
const char *needle, Py_ssize_t len_needle,
Py_ssize_t offset);
// Same as above, but search right-to-left.
// Export for 'mmap' shared extension.
PyAPI_FUNC(Py_ssize_t)
_PyBytes_ReverseFind(const char *haystack, Py_ssize_t len_haystack,
const char *needle, Py_ssize_t len_needle,
Py_ssize_t offset);
// Helper function to implement the repeat and inplace repeat methods on a
// buffer.
//
// len_dest is assumed to be an integer multiple of len_src.
// If src equals dest, then assume the operation is inplace.
//
// This method repeately doubles the number of bytes copied to reduce
// the number of invocations of memcpy.
//
// Export for 'array' shared extension.
PyAPI_FUNC(void)
_PyBytes_Repeat(char* dest, Py_ssize_t len_dest,
const char* src, Py_ssize_t len_src);
/* _PyBytesObject_SIZE gives the basic size of a bytes object; any memory allocation
for a bytes object of length n should request PyBytesObject_SIZE + n bytes.
Using _PyBytesObject_SIZE instead of sizeof(PyBytesObject) saves
3 or 7 bytes per bytes object allocation on a typical system.
*/
#define _PyBytesObject_SIZE (offsetof(PyBytesObject, ob_sval) + 1)
/* --- PyBytesWriter ------------------------------------------------------ */
struct PyBytesWriter {
char small_buffer[256];
PyObject *obj;
Py_ssize_t size;
int use_bytearray;
int overallocate;
};
// Export for '_testcapi' shared extension
PyAPI_FUNC(PyBytesWriter*) _PyBytesWriter_CreateByteArray(Py_ssize_t size);
static inline Py_ssize_t
_PyBytesWriter_GetSize(PyBytesWriter *writer)
{
return writer->size;
}
static inline char*
_PyBytesWriter_GetData(PyBytesWriter *writer)
{
if (writer->obj == NULL) {
return writer->small_buffer;
}
else if (writer->use_bytearray) {
return PyByteArray_AS_STRING(writer->obj);
}
else {
return PyBytes_AS_STRING(writer->obj);
}
}
#ifdef __cplusplus
}
#endif
#endif /* !Py_INTERNAL_BYTESOBJECT_H */
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