/**
* \return success
*/
bool BPY_execute_string_as_number(bContext *C, const char *expr, double *value, const bool verbose)
{
PyGILState_STATE gilstate;
bool ok = true;
if (!value || !expr) return -1;
if (expr[0] == '\0') {
*value = 0.0;
return ok;
}
bpy_context_set(C, &gilstate);
ok = PyC_RunString_AsNumber(expr, value, "<blender button>");
if (ok == false) {
if (verbose) {
BPy_errors_to_report_ex(CTX_wm_reports(C), false, false);
}
else {
PyErr_Clear();
}
}
bpy_context_clear(C, &gilstate);
return ok;
}
static PyObject *bpyunits_to_value(PyObject *UNUSED(self), PyObject *args, PyObject *kw)
{
static const char *kwlist[] = {"unit_system", "unit_category", "str_input", "str_ref_unit", NULL};
char *usys_str = NULL, *ucat_str = NULL, *inpt = NULL, *uref = NULL;
const float scale = 1.0f;
char *str;
Py_ssize_t str_len;
double result;
int usys, ucat;
PyObject *ret;
if (!PyArg_ParseTupleAndKeywords(args, kw, "sss#|z:bpy.utils.units.to_value", (char **)kwlist,
&usys_str, &ucat_str, &inpt, &str_len, &uref))
{
return NULL;
}
if (!bpyunits_validate(usys_str, ucat_str, &usys, &ucat)) {
return NULL;
}
str_len = str_len * 2 + 64;
str = PyMem_MALLOC(sizeof(*str) * (size_t)str_len);
BLI_strncpy(str, inpt, (size_t)str_len);
bUnit_ReplaceString(str, (int)str_len, uref, scale, usys, ucat);
if (!PyC_RunString_AsNumber(str, &result, "<bpy_units_api>")) {
if (PyErr_Occurred()) {
PyErr_Print();
PyErr_Clear();
}
PyErr_Format(PyExc_ValueError,
"'%.200s' (converted as '%s') could not be evaluated.",
inpt, str);
ret = NULL;
}
else {
ret = PyFloat_FromDouble(result);
}
PyMem_FREE(str);
return ret;
}