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Added new .isalpha() and .isalnum() methods to match the same 

ones on the Unicode objects. Note that the string versions use
the (locale aware) C lib APIs isalpha() and isalnum().
This commit is contained in:
Marc-André Lemburg 2000-07-05 09:47:46 +00:00
parent 9d4674168f
commit 4027f8f4b3
1 changed files with 68 additions and 0 deletions
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68
Objects/stringobject.c
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@ -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__},