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cpython/Objects/stringlib/partition.h at 3.5 · python/cpython · GitHub
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partition.h
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116 lines (96 loc) · 3.03 KB
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stringlib
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partition.h
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/* stringlib: partition implementation */
#ifndef
STRINGLIB_FASTSEARCH_H
#error
must include "stringlib/fastsearch.h" before including this module
#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
);
Py_INCREF
(
STRINGLIB_EMPTY
);
PyTuple_SET_ITEM
(
out
,
1
, (
PyObject
*
)
STRINGLIB_EMPTY
);
Py_INCREF
(
STRINGLIB_EMPTY
);
PyTuple_SET_ITEM
(
out
,
2
, (
PyObject
*
)
STRINGLIB_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
Py_INCREF
(
STRINGLIB_EMPTY
);
PyTuple_SET_ITEM
(
out
,
0
, (
PyObject
*
)
STRINGLIB_EMPTY
);
Py_INCREF
(
STRINGLIB_EMPTY
);
PyTuple_SET_ITEM
(
out
,
1
, (
PyObject
*
)
STRINGLIB_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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