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125 lines (103 loc) · 3.22 KB
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Copy pathpartition.h
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125 lines (103 loc) · 3.22 KB
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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;
}