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// Attempts to load a UCL structure from a string
#include <ucl.h>
#include <Python.h>
static PyObject*
_basic_ucl_type(ucl_object_t const * const obj) {
if (obj->type == UCL_INT) {
return Py_BuildValue("L", (long long)ucl_object_toint (obj));
}
else if (obj->type == UCL_FLOAT) {
return Py_BuildValue("d", ucl_object_todouble (obj));
}
else if (obj->type == UCL_STRING) {
return Py_BuildValue("s", ucl_object_tostring (obj));
}
else if (obj->type == UCL_BOOLEAN) {
// maybe used 'p' here?
return Py_BuildValue("s", ucl_object_tostring_forced (obj));
}
else if (obj->type == UCL_TIME) {
return Py_BuildValue("d", ucl_object_todouble (obj));
}
return NULL;
}
static PyObject*
_iterate_valid_ucl(ucl_object_t const * obj) {
const ucl_object_t *tmp;
ucl_object_iter_t it = NULL;
tmp = obj;
while ((obj = ucl_iterate_object (tmp, &it, false))) {
PyObject* val;
val = _basic_ucl_type(obj);
if (!val) {
PyObject* key = NULL;
if (obj->key != NULL) {
key = Py_BuildValue("s", ucl_object_key(obj));
}
PyObject* ret;
ret = PyDict_New();
if (obj->type == UCL_OBJECT) {
val = PyDict_New();
const ucl_object_t *cur;
ucl_object_iter_t it_obj = NULL;
while ((cur = ucl_iterate_object (obj, &it_obj, true))) {
PyObject* keyobj = Py_BuildValue("s",ucl_object_key(cur));
PyDict_SetItem(val, keyobj, _iterate_valid_ucl(cur));
}
}
else if (obj->type == UCL_ARRAY) {
val = PyList_New(0);
const ucl_object_t *cur;
ucl_object_iter_t it_obj = NULL;
while ((cur = ucl_iterate_object (obj, &it_obj, true))) {
PyList_Append(val, _iterate_valid_ucl(cur));
}
}
else if (obj->type == UCL_USERDATA) {
// XXX: this should be
// PyBytes_FromStringAndSize; where is the
// length from?
val = PyBytes_FromString(obj->value.ud);
}
}
return val;
}
PyErr_SetString(PyExc_SystemError, "unhandled type");
return NULL;
}
static PyObject*
_internal_load_ucl(char* uclstr) {
PyObject* ret;
struct ucl_parser *parser = ucl_parser_new (UCL_PARSER_NO_TIME);
bool r = ucl_parser_add_string(parser, uclstr, 0);
if (r) {
if (ucl_parser_get_error (parser)) {
PyErr_SetString(PyExc_ValueError, ucl_parser_get_error(parser));
ucl_parser_free(parser);
ret = NULL;
goto return_with_parser;
} else {
ucl_object_t* uclobj = ucl_parser_get_object(parser);
ret = _iterate_valid_ucl(uclobj);
ucl_object_unref(uclobj);
goto return_with_parser;
}
} else {
PyErr_SetString(PyExc_ValueError, ucl_parser_get_error (parser));
ret = NULL;
goto return_with_parser;
}
return_with_parser:
ucl_parser_free(parser);
return ret;
}
static PyObject*
ucl_load(PyObject *self, PyObject *args) {
char* uclstr;
if (PyArg_ParseTuple(args, "z", &uclstr)) {
if (!uclstr) {
Py_RETURN_NONE;
}
return _internal_load_ucl(uclstr);
}
return NULL;
}
static PyObject*
ucl_validate(PyObject *self, PyObject *args) {
char *uclstr, *schema;
if (PyArg_ParseTuple(args, "zz", &uclstr, &schema)) {
if (!uclstr || !schema) {
Py_RETURN_NONE;
}
PyErr_SetString(PyExc_NotImplementedError, "schema validation is not yet supported");
return NULL;
}
return NULL;
}
static PyMethodDef uclMethods[] = {
{"load", ucl_load, METH_VARARGS, "Load UCL from stream"},
{"validate", ucl_validate, METH_VARARGS, "Validate ucl stream against schema"},
{NULL, NULL, 0, NULL}
};
#if PY_MAJOR_VERSION >= 3
static struct PyModuleDef uclmodule = {
PyModuleDef_HEAD_INIT,
"ucl",
NULL,
-1,
uclMethods
};
PyMODINIT_FUNC
PyInit_ucl(void) {
return PyModule_Create(&uclmodule);
}
#else
void initucl(void) {
Py_InitModule("ucl", uclMethods);
}
#endif
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