static PyObject *
strop_atof(PyObject *self, PyObject *args)
{
char *s, *end;
double x;
char buffer[256]; /* For errors */
WARN;
if (!PyArg_ParseTuple(args, "s:atof", &s))
return NULL;
while (*s && isspace(Py_CHARMASK(*s)))
s++;
if (s[0] == '\0') {
PyErr_SetString(PyExc_ValueError, "empty string for atof()");
return NULL;
}
PyFPE_START_PROTECT("strop_atof", return 0)
x = PyOS_string_to_double(s, &end, PyExc_OverflowError);
PyFPE_END_PROTECT(x)
if (x == -1 && PyErr_Occurred())
return NULL;
while (*end && isspace(Py_CHARMASK(*end)))
end++;
if (*end != '\0') {
PyOS_snprintf(buffer, sizeof(buffer),
"invalid literal for atof(): %.200s", s);
PyErr_SetString(PyExc_ValueError, buffer);
return NULL;
}
return PyFloat_FromDouble(x);
}
/*
* _NumPyOS_ascii_strtod_plain:
*
* PyOS_ascii_strtod work-alike, with no enhanced features,
* for forward compatibility with Python >= 2.7
*/
static double
NumPyOS_ascii_strtod_plain(const char *s, char** endptr)
{
double result;
#if PY_VERSION_HEX >= 0x02070000
NPY_ALLOW_C_API_DEF
NPY_ALLOW_C_API
result = PyOS_string_to_double(s, endptr, NULL);
if (PyErr_Occurred()) {
if (endptr) {
*endptr = (char*)s;
}
PyErr_Clear();
}
NPY_DISABLE_C_API
#else
result = PyOS_ascii_strtod(s, endptr);
#endif
return result;
}
static PyObject *
complex_from_string_inner(const char *s, Py_ssize_t len, void *type)
{
double x=0.0, y=0.0, z;
int got_bracket=0;
const char *start;
char *end;
/* position on first nonblank */
start = s;
while (Py_ISSPACE(*s))
s++;
if (*s == '(') {
/* Skip over possible bracket from repr(). */
got_bracket = 1;
s++;
while (Py_ISSPACE(*s))
s++;
}
/* a valid complex string usually takes one of the three forms:
<float> - real part only
<float>j - imaginary part only
<float><signed-float>j - real and imaginary parts
where <float> represents any numeric string that's accepted by the
float constructor (including 'nan', 'inf', 'infinity', etc.), and
<signed-float> is any string of the form <float> whose first
character is '+' or '-'.
For backwards compatibility, the extra forms
<float><sign>j
<sign>j
j
are also accepted, though support for these forms may be removed from
a future version of Python.
*/
/* first look for forms starting with <float> */
z = PyOS_string_to_double(s, &end, NULL);
if (z == -1.0 && PyErr_Occurred()) {
if (PyErr_ExceptionMatches(PyExc_ValueError))
PyErr_Clear();
else
return NULL;
}
if (end != s) {
/* all 4 forms starting with <float> land here */
s = end;
if (*s == '+' || *s == '-') {
/* <float><signed-float>j | <float><sign>j */
x = z;
y = PyOS_string_to_double(s, &end, NULL);
if (y == -1.0 && PyErr_Occurred()) {
if (PyErr_ExceptionMatches(PyExc_ValueError))
PyErr_Clear();
else
return NULL;
}
if (end != s)
/* <float><signed-float>j */
s = end;
else {
/* <float><sign>j */
y = *s == '+' ? 1.0 : -1.0;
s++;
}
if (!(*s == 'j' || *s == 'J'))
goto parse_error;
s++;
}
else if (*s == 'j' || *s == 'J') {
/* <float>j */
s++;
y = z;
}
else
/* <float> */
x = z;
}
else {
/* not starting with <float>; must be <sign>j or j */
if (*s == '+' || *s == '-') {
/* <sign>j */
y = *s == '+' ? 1.0 : -1.0;
s++;
}
else
/* j */
y = 1.0;
if (!(*s == 'j' || *s == 'J'))
goto parse_error;
s++;
}
/* trailing whitespace and closing bracket */
while (Py_ISSPACE(*s))
s++;
if (got_bracket) {
/* if there was an opening parenthesis, then the corresponding
closing parenthesis should be right here */
if (*s != ')')
goto parse_error;
s++;
while (Py_ISSPACE(*s))
s++;
}
/* we should now be at the end of the string */
if (s-start != len)
goto parse_error;
return complex_subtype_from_doubles((PyTypeObject *)type, x, y);
parse_error:
PyErr_SetString(PyExc_ValueError,
"complex() arg is a malformed string");
return NULL;
}
static PyObject *
complex_subtype_from_string(PyTypeObject *type, PyObject *v)
{
const char *s, *start;
char *end;
double x=0.0, y=0.0, z;
int got_bracket=0;
PyObject *s_buffer = NULL;
Py_ssize_t len;
Py_buffer view = {NULL, NULL};
if (PyUnicode_Check(v)) {
s_buffer = _PyUnicode_TransformDecimalAndSpaceToASCII(v);
if (s_buffer == NULL)
return NULL;
s = PyUnicode_AsUTF8AndSize(s_buffer, &len);
if (s == NULL)
goto error;
}
else if (PyObject_GetBuffer(v, &view, PyBUF_SIMPLE) == 0) {
s = (const char *)view.buf;
len = view.len;
}
else {
PyErr_Format(PyExc_TypeError,
"complex() argument must be a string or a number, not '%.200s'",
Py_TYPE(v)->tp_name);
return NULL;
}
/* position on first nonblank */
start = s;
while (Py_ISSPACE(*s))
s++;
if (*s == '(') {
/* Skip over possible bracket from repr(). */
got_bracket = 1;
s++;
while (Py_ISSPACE(*s))
s++;
}
/* a valid complex string usually takes one of the three forms:
<float> - real part only
<float>j - imaginary part only
<float><signed-float>j - real and imaginary parts
where <float> represents any numeric string that's accepted by the
float constructor (including 'nan', 'inf', 'infinity', etc.), and
<signed-float> is any string of the form <float> whose first
character is '+' or '-'.
For backwards compatibility, the extra forms
<float><sign>j
<sign>j
j
are also accepted, though support for these forms may be removed from
a future version of Python.
*/
/* first look for forms starting with <float> */
z = PyOS_string_to_double(s, &end, NULL);
if (z == -1.0 && PyErr_Occurred()) {
if (PyErr_ExceptionMatches(PyExc_ValueError))
PyErr_Clear();
else
goto error;
}
if (end != s) {
/* all 4 forms starting with <float> land here */
s = end;
if (*s == '+' || *s == '-') {
/* <float><signed-float>j | <float><sign>j */
x = z;
y = PyOS_string_to_double(s, &end, NULL);
if (y == -1.0 && PyErr_Occurred()) {
if (PyErr_ExceptionMatches(PyExc_ValueError))
PyErr_Clear();
else
goto error;
}
if (end != s)
/* <float><signed-float>j */
s = end;
else {
/* <float><sign>j */
y = *s == '+' ? 1.0 : -1.0;
s++;
}
if (!(*s == 'j' || *s == 'J'))
goto parse_error;
s++;
}
else if (*s == 'j' || *s == 'J') {
/* <float>j */
s++;
y = z;
}
else
/* <float> */
x = z;
}
else {
/* not starting with <float>; must be <sign>j or j */
if (*s == '+' || *s == '-') {
/* <sign>j */
y = *s == '+' ? 1.0 : -1.0;
s++;
}
else
/* j */
y = 1.0;
if (!(*s == 'j' || *s == 'J'))
goto parse_error;
s++;
}
/* trailing whitespace and closing bracket */
while (Py_ISSPACE(*s))
s++;
if (got_bracket) {
/* if there was an opening parenthesis, then the corresponding
closing parenthesis should be right here */
if (*s != ')')
goto parse_error;
s++;
while (Py_ISSPACE(*s))
s++;
}
/* we should now be at the end of the string */
if (s-start != len)
goto parse_error;
PyBuffer_Release(&view);
Py_XDECREF(s_buffer);
return complex_subtype_from_doubles(type, x, y);
parse_error:
PyErr_SetString(PyExc_ValueError,
"complex() arg is a malformed string");
error:
PyBuffer_Release(&view);
Py_XDECREF(s_buffer);
return NULL;
}
static PyObject *
complex_subtype_from_string(PyTypeObject *type, PyObject *v)
{
const char *s, *start;
char *end;
double x=0.0, y=0.0, z;
int got_bracket=0;
#ifdef Py_USING_UNICODE
char *s_buffer = NULL;
#endif
Py_ssize_t len;
if (PyString_Check(v)) {
s = PyString_AS_STRING(v);
len = PyString_GET_SIZE(v);
}
#ifdef Py_USING_UNICODE
else if (PyUnicode_Check(v)) {
s_buffer = (char *)PyMem_MALLOC(PyUnicode_GET_SIZE(v)+1);
if (s_buffer == NULL)
return PyErr_NoMemory();
if (PyUnicode_EncodeDecimal(PyUnicode_AS_UNICODE(v),
PyUnicode_GET_SIZE(v),
s_buffer,
NULL))
goto error;
s = s_buffer;
len = strlen(s);
}
#endif
else if (PyObject_AsCharBuffer(v, &s, &len)) {
PyErr_SetString(PyExc_TypeError,
"complex() arg is not a string");
return NULL;
}
/* position on first nonblank */
start = s;
while (Py_ISSPACE(*s))
s++;
if (*s == '(') {
/* Skip over possible bracket from repr(). */
got_bracket = 1;
s++;
while (Py_ISSPACE(*s))
s++;
}
/* a valid complex string usually takes one of the three forms:
<float> - real part only
<float>j - imaginary part only
<float><signed-float>j - real and imaginary parts
where <float> represents any numeric string that's accepted by the
float constructor (including 'nan', 'inf', 'infinity', etc.), and
<signed-float> is any string of the form <float> whose first
character is '+' or '-'.
For backwards compatibility, the extra forms
<float><sign>j
<sign>j
j
are also accepted, though support for these forms may be removed from
a future version of Python.
*/
/* first look for forms starting with <float> */
z = PyOS_string_to_double(s, &end, NULL);
if (z == -1.0 && PyErr_Occurred()) {
if (PyErr_ExceptionMatches(PyExc_ValueError))
PyErr_Clear();
else
goto error;
}
if (end != s) {
/* all 4 forms starting with <float> land here */
s = end;
if (*s == '+' || *s == '-') {
/* <float><signed-float>j | <float><sign>j */
x = z;
y = PyOS_string_to_double(s, &end, NULL);
if (y == -1.0 && PyErr_Occurred()) {
if (PyErr_ExceptionMatches(PyExc_ValueError))
PyErr_Clear();
else
goto error;
}
if (end != s)
/* <float><signed-float>j */
s = end;
else {
/* <float><sign>j */
y = *s == '+' ? 1.0 : -1.0;
s++;
}
if (!(*s == 'j' || *s == 'J'))
goto parse_error;
s++;
}
else if (*s == 'j' || *s == 'J') {
/* <float>j */
s++;
y = z;
}
else
/* <float> */
x = z;
}
else {
/* not starting with <float>; must be <sign>j or j */
if (*s == '+' || *s == '-') {
/* <sign>j */
y = *s == '+' ? 1.0 : -1.0;
s++;
}
else
/* j */
y = 1.0;
if (!(*s == 'j' || *s == 'J'))
goto parse_error;
s++;
}
/* trailing whitespace and closing bracket */
while (Py_ISSPACE(*s))
s++;
if (got_bracket) {
/* if there was an opening parenthesis, then the corresponding
closing parenthesis should be right here */
if (*s != ')')
goto parse_error;
s++;
while (Py_ISSPACE(*s))
s++;
}
/* we should now be at the end of the string */
if (s-start != len)
goto parse_error;
#ifdef Py_USING_UNICODE
if (s_buffer)
PyMem_FREE(s_buffer);
#endif
return complex_subtype_from_doubles(type, x, y);
parse_error:
PyErr_SetString(PyExc_ValueError,
"complex() arg is a malformed string");
error:
#ifdef Py_USING_UNICODE
if (s_buffer)
PyMem_FREE(s_buffer);
#endif
return NULL;
}