source: python/trunk/Objects/stringlib/partition.h@ 1538

Last change on this file since 1538 was 391, checked in by dmik, 12 years ago

python: Merge vendor 2.7.6 to trunk.
  • Property svn:eol-style set to native
File size: 2.9 KB
Line 
1/* stringlib: partition implementation */
2
3#ifndef STRINGLIB_PARTITION_H
4#define STRINGLIB_PARTITION_H
5
6#ifndef STRINGLIB_FASTSEARCH_H
7#error must include "stringlib/fastsearch.h" before including this module
8#endif
9
10Py_LOCAL_INLINE(PyObject*)
11stringlib_partition(PyObject* str_obj,
12 const STRINGLIB_CHAR* str, Py_ssize_t str_len,
13 PyObject* sep_obj,
14 const STRINGLIB_CHAR* sep, Py_ssize_t sep_len)
15{
16 PyObject* out;
17 Py_ssize_t pos;
18
19 if (sep_len == 0) {
20 PyErr_SetString(PyExc_ValueError, "empty separator");
21 return NULL;
22 }
23
24 out = PyTuple_New(3);
25 if (!out)
26 return NULL;
27
28 pos = fastsearch(str, str_len, sep, sep_len, -1, FAST_SEARCH);
29
30 if (pos < 0) {
31#if STRINGLIB_MUTABLE
32 PyTuple_SET_ITEM(out, 0, STRINGLIB_NEW(str, str_len));
33 PyTuple_SET_ITEM(out, 1, STRINGLIB_NEW(NULL, 0));
34 PyTuple_SET_ITEM(out, 2, STRINGLIB_NEW(NULL, 0));
35#else
36 Py_INCREF(str_obj);
37 PyTuple_SET_ITEM(out, 0, (PyObject*) str_obj);
38 Py_INCREF(STRINGLIB_EMPTY);
39 PyTuple_SET_ITEM(out, 1, (PyObject*) STRINGLIB_EMPTY);
40 Py_INCREF(STRINGLIB_EMPTY);
41 PyTuple_SET_ITEM(out, 2, (PyObject*) STRINGLIB_EMPTY);
42#endif
43 return out;
44 }
45
46 PyTuple_SET_ITEM(out, 0, STRINGLIB_NEW(str, pos));
47 Py_INCREF(sep_obj);
48 PyTuple_SET_ITEM(out, 1, sep_obj);
49 pos += sep_len;
50 PyTuple_SET_ITEM(out, 2, STRINGLIB_NEW(str + pos, str_len - pos));
51
52 if (PyErr_Occurred()) {
53 Py_DECREF(out);
54 return NULL;
55 }
56
57 return out;
58}
59
60Py_LOCAL_INLINE(PyObject*)
61stringlib_rpartition(PyObject* str_obj,
62 const STRINGLIB_CHAR* str, Py_ssize_t str_len,
63 PyObject* sep_obj,
64 const STRINGLIB_CHAR* sep, Py_ssize_t sep_len)
65{
66 PyObject* out;
67 Py_ssize_t pos;
68
69 if (sep_len == 0) {
70 PyErr_SetString(PyExc_ValueError, "empty separator");
71 return NULL;
72 }
73
74 out = PyTuple_New(3);
75 if (!out)
76 return NULL;
77
78 pos = fastsearch(str, str_len, sep, sep_len, -1, FAST_RSEARCH);
79
80 if (pos < 0) {
81#if STRINGLIB_MUTABLE
82 PyTuple_SET_ITEM(out, 0, STRINGLIB_NEW(NULL, 0));
83 PyTuple_SET_ITEM(out, 1, STRINGLIB_NEW(NULL, 0));
84 PyTuple_SET_ITEM(out, 2, STRINGLIB_NEW(str, str_len));
85#else
86 Py_INCREF(STRINGLIB_EMPTY);
87 PyTuple_SET_ITEM(out, 0, (PyObject*) STRINGLIB_EMPTY);
88 Py_INCREF(STRINGLIB_EMPTY);
89 PyTuple_SET_ITEM(out, 1, (PyObject*) STRINGLIB_EMPTY);
90 Py_INCREF(str_obj);
91 PyTuple_SET_ITEM(out, 2, (PyObject*) str_obj);
92#endif
93 return out;
94 }
95
96 PyTuple_SET_ITEM(out, 0, STRINGLIB_NEW(str, pos));
97 Py_INCREF(sep_obj);
98 PyTuple_SET_ITEM(out, 1, sep_obj);
99 pos += sep_len;
100 PyTuple_SET_ITEM(out, 2, STRINGLIB_NEW(str + pos, str_len - pos));
101
102 if (PyErr_Occurred()) {
103 Py_DECREF(out);
104 return NULL;
105 }
106
107 return out;
108}
109
110#endif
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