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/* stringlib: partition implementation */

#ifndef STRINGLIB_FASTSEARCH_H

# error must include "stringlib/fastsearch.h" before including this module

#endif

#if !STRINGLIB_MUTABLE && !defined(STRINGLIB_GET_EMPTY)

# error "STRINGLIB_GET_EMPTY must be defined if STRINGLIB_MUTABLE is zero"

#endif

Py_LOCAL_INLINE(PyObject*)

STRINGLIB(partition)(PyObject* str_obj,

const STRINGLIB_CHAR* str, Py_ssize_t str_len,

PyObject* sep_obj,

const STRINGLIB_CHAR* sep, Py_ssize_t sep_len)

{

PyObject* out;

Py_ssize_t pos;

if (sep_len == 0) {

PyErr_SetString(PyExc_ValueError, "empty separator");

return NULL;

}

out = PyTuple_New(3);

if (!out)

return NULL;

pos = FASTSEARCH(str, str_len, sep, sep_len, -1, FAST_SEARCH);

if (pos < 0) {

#if STRINGLIB_MUTABLE

PyTuple_SET_ITEM(out, 0, STRINGLIB_NEW(str, str_len));

PyTuple_SET_ITEM(out, 1, STRINGLIB_NEW(NULL, 0));

PyTuple_SET_ITEM(out, 2, STRINGLIB_NEW(NULL, 0));

if (PyErr_Occurred()) {

Py_DECREF(out);

return NULL;

}

#else

Py_INCREF(str_obj);

PyTuple_SET_ITEM(out, 0, (PyObject*) str_obj);

PyObject *empty = (PyObject*)STRINGLIB_GET_EMPTY();

assert(empty != NULL);

Py_INCREF(empty);

PyTuple_SET_ITEM(out, 1, empty);

Py_INCREF(empty);

PyTuple_SET_ITEM(out, 2, empty);

#endif

return out;

}

PyTuple_SET_ITEM(out, 0, STRINGLIB_NEW(str, pos));

Py_INCREF(sep_obj);

PyTuple_SET_ITEM(out, 1, sep_obj);

pos += sep_len;

PyTuple_SET_ITEM(out, 2, STRINGLIB_NEW(str + pos, str_len - pos));

if (PyErr_Occurred()) {

Py_DECREF(out);

return NULL;

}

return out;

}

Py_LOCAL_INLINE(PyObject*)

STRINGLIB(rpartition)(PyObject* str_obj,

const STRINGLIB_CHAR* str, Py_ssize_t str_len,

PyObject* sep_obj,

const STRINGLIB_CHAR* sep, Py_ssize_t sep_len)

{

PyObject* out;

Py_ssize_t pos;

if (sep_len == 0) {

PyErr_SetString(PyExc_ValueError, "empty separator");

return NULL;

}

out = PyTuple_New(3);

if (!out)

return NULL;

pos = FASTSEARCH(str, str_len, sep, sep_len, -1, FAST_RSEARCH);

if (pos < 0) {

#if STRINGLIB_MUTABLE

PyTuple_SET_ITEM(out, 0, STRINGLIB_NEW(NULL, 0));

PyTuple_SET_ITEM(out, 1, STRINGLIB_NEW(NULL, 0));

PyTuple_SET_ITEM(out, 2, STRINGLIB_NEW(str, str_len));

if (PyErr_Occurred()) {

Py_DECREF(out);

return NULL;

}

#else

PyObject *empty = (PyObject*)STRINGLIB_GET_EMPTY();

assert(empty != NULL);

Py_INCREF(empty);

PyTuple_SET_ITEM(out, 0, empty);

Py_INCREF(empty);

PyTuple_SET_ITEM(out, 1, empty);

Py_INCREF(str_obj);

PyTuple_SET_ITEM(out, 2, (PyObject*) str_obj);

#endif

return out;

}

PyTuple_SET_ITEM(out, 0, STRINGLIB_NEW(str, pos));

Py_INCREF(sep_obj);

PyTuple_SET_ITEM(out, 1, sep_obj);

pos += sep_len;

PyTuple_SET_ITEM(out, 2, STRINGLIB_NEW(str + pos, str_len - pos));

if (PyErr_Occurred()) {

Py_DECREF(out);

return NULL;

}

return out;

}

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