diff options
Diffstat (limited to 'Objects/unicodeobject.c')
| -rw-r--r-- | Objects/unicodeobject.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c index 471d98b0f3..6d9df182d3 100644 --- a/Objects/unicodeobject.c +++ b/Objects/unicodeobject.c @@ -9577,6 +9577,24 @@ do_lower(int kind, void *data, Py_ssize_t length, Py_UCS4 *res, Py_UCS4 *maxchar } static Py_ssize_t +do_casefold(int kind, void *data, Py_ssize_t length, Py_UCS4 *res, Py_UCS4 *maxchar) +{ + Py_ssize_t i, k = 0; + + for (i = 0; i < length; i++) { + Py_UCS4 c = PyUnicode_READ(kind, data, i); + Py_UCS4 mapped[3]; + int j, n_res = _PyUnicode_ToFoldedFull(c, mapped); + for (j = 0; j < n_res; j++) { + if (mapped[j] > *maxchar) + *maxchar = mapped[j]; + res[k++] = mapped[j]; + } + } + return k; +} + +static Py_ssize_t do_title(int kind, void *data, Py_ssize_t length, Py_UCS4 *res, Py_UCS4 *maxchar) { Py_ssize_t i, k = 0; @@ -10501,6 +10519,22 @@ unicode_capitalize(PyObject *self) return case_operation(self, do_capitalize); } +PyDoc_STRVAR(casefold__doc__, + "S.casefold() -> str\n\ +\n\ +Return a version of S suitable for caseless comparisons."); + +static PyObject * +unicode_casefold(PyObject *self) +{ + if (PyUnicode_READY(self) == -1) + return NULL; + if (PyUnicode_IS_ASCII(self)) + return ascii_upper_or_lower(self, 1); + return case_operation(self, do_casefold); +} + + /* Argument converter. Coerces to a single unicode character */ static int @@ -12998,6 +13032,7 @@ static PyMethodDef unicode_methods[] = { {"rsplit", (PyCFunction) unicode_rsplit, METH_VARARGS, rsplit__doc__}, {"join", (PyCFunction) unicode_join, METH_O, join__doc__}, {"capitalize", (PyCFunction) unicode_capitalize, METH_NOARGS, capitalize__doc__}, + {"casefold", (PyCFunction) unicode_casefold, METH_NOARGS, casefold__doc__}, {"title", (PyCFunction) unicode_title, METH_NOARGS, title__doc__}, {"center", (PyCFunction) unicode_center, METH_VARARGS, center__doc__}, {"count", (PyCFunction) unicode_count, METH_VARARGS, count__doc__}, |