diff options
| -rw-r--r-- | Objects/stringobject.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/Objects/stringobject.c b/Objects/stringobject.c index b547aa3..e918829 100644 --- a/Objects/stringobject.c +++ b/Objects/stringobject.c @@ -1924,6 +1924,72 @@ string_isspace(PyStringObject *self, PyObject *args) } +static char isalpha__doc__[] = +"S.isalpha() -> int\n\ +\n\ +Return 1 if all characters in S are alphabetic\n\ +and there is at least one character in S, 0 otherwise."; + +static PyObject* +string_isalpha(PyUnicodeObject *self, PyObject *args) +{ + register const unsigned char *p = (unsigned char *) PyString_AS_STRING(self); + register const unsigned char *e; + + if (!PyArg_NoArgs(args)) + return NULL; + + /* Shortcut for single character strings */ + if (PyString_GET_SIZE(self) == 1 && + isalpha(*p)) + return PyInt_FromLong(1); + + /* Special case for empty strings */ + if (PyString_GET_SIZE(self) == 0) + return PyInt_FromLong(0); + + e = p + PyString_GET_SIZE(self); + for (; p < e; p++) { + if (!isalpha(*p)) + return PyInt_FromLong(0); + } + return PyInt_FromLong(1); +} + + +static char isalnum__doc__[] = +"S.isalnum() -> int\n\ +\n\ +Return 1 if all characters in S are alphanumeric\n\ +and there is at least one character in S, 0 otherwise."; + +static PyObject* +string_isalnum(PyUnicodeObject *self, PyObject *args) +{ + register const unsigned char *p = (unsigned char *) PyString_AS_STRING(self); + register const unsigned char *e; + + if (!PyArg_NoArgs(args)) + return NULL; + + /* Shortcut for single character strings */ + if (PyString_GET_SIZE(self) == 1 && + isalnum(*p)) + return PyInt_FromLong(1); + + /* Special case for empty strings */ + if (PyString_GET_SIZE(self) == 0) + return PyInt_FromLong(0); + + e = p + PyString_GET_SIZE(self); + for (; p < e; p++) { + if (!isalnum(*p)) + return PyInt_FromLong(0); + } + return PyInt_FromLong(1); +} + + static char isdigit__doc__[] = "S.isdigit() -> int\n\ \n\ @@ -2166,6 +2232,8 @@ string_methods[] = { {"isspace", (PyCFunction)string_isspace, 0, isspace__doc__}, {"isdigit", (PyCFunction)string_isdigit, 0, isdigit__doc__}, {"istitle", (PyCFunction)string_istitle, 0, istitle__doc__}, + {"isalpha", (PyCFunction)string_isalpha, 0, isalpha__doc__}, + {"isalnum", (PyCFunction)string_isalnum, 0, isalnum__doc__}, {"capitalize", (PyCFunction)string_capitalize, 1, capitalize__doc__}, {"count", (PyCFunction)string_count, 1, count__doc__}, {"endswith", (PyCFunction)string_endswith, 1, endswith__doc__}, |