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Add sq_contains implementation.

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This commit is contained in:
Guido van Rossum 2000-03-13 15:55:09 +00:00
parent ef93b87f1c
commit 403d68b484
1 changed files with 44 additions and 0 deletions
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44
Objects/unicodeobject.c
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@ -2737,6 +2737,49 @@ onError:
return -1; return -1;
} }
int PyUnicode_Contains(PyObject *container,
PyObject *element)
{
PyUnicodeObject *u = NULL, *v = NULL;
int result;
register const Py_UNICODE *p, *e;
register Py_UNICODE ch;
/* Coerce the two arguments */
u = (PyUnicodeObject *)PyUnicode_FromObject(container);
if (u == NULL)
goto onError;
v = (PyUnicodeObject *)PyUnicode_FromObject(element);
if (v == NULL)
goto onError;
/* Check v in u */
if (PyUnicode_GET_SIZE(v) != 1) {
PyErr_SetString(PyExc_TypeError,
"string member test needs char left operand");
goto onError;
}
ch = *PyUnicode_AS_UNICODE(v);
p = PyUnicode_AS_UNICODE(u);
e = p + PyUnicode_GET_SIZE(u);
result = 0;
while (p < e) {
if (*p++ == ch) {
result = 1;
break;
}
}
Py_DECREF(u);
Py_DECREF(v);
return result;
onError:
Py_XDECREF(u);
Py_XDECREF(v);
return -1;
}
/* Concat to string or Unicode object giving a new Unicode object. */ /* Concat to string or Unicode object giving a new Unicode object. */
PyObject *PyUnicode_Concat(PyObject *left, PyObject *PyUnicode_Concat(PyObject *left,
@ -3817,6 +3860,7 @@ static PySequenceMethods unicode_as_sequence = {
(intintargfunc) unicode_slice, /* sq_slice */ (intintargfunc) unicode_slice, /* sq_slice */
0, /* sq_ass_item */ 0, /* sq_ass_item */
0, /* sq_ass_slice */ 0, /* sq_ass_slice */
(objobjproc)PyUnicode_Contains, /*sq_contains*/
}; };
static int static int