1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
#define PY_SSIZE_T_CLEAN
#include <Python.h>
#include <stdbool.h>
#include "../src/nissy.h"
#define MAX_CUBE_STR_LEN 1024 /* Update when adding formats */
static bool
check_error(long long err)
{
char err_string[255];
switch (err) {
case NISSY_OK: /* Fallthrough */
case NISSY_WARNING_UNSOLVABLE:
return true;
case NISSY_ERROR_INVALID_CUBE:
case NISSY_ERROR_UNSOLVABLE_CUBE: /* Fallthrough */
case NISSY_ERROR_INVALID_MOVES:
case NISSY_ERROR_INVALID_TRANS:
case NISSY_ERROR_INVALID_FORMAT:
case NISSY_ERROR_INVALID_SOLVER:
case NISSY_ERROR_NULL_POINTER:
case NISSY_ERROR_BUFFER_SIZE:
case NISSY_ERROR_DATA:
case NISSY_ERROR_OPTIONS:
case NISSY_ERROR_UNKNOWN:
default:
sprintf(err_string, "Error from libnissy (%lld)", err);
PyErr_SetString(PyExc_Exception, err_string);
return false;
}
}
static PyObject *
string_result(long long err, const char *result)
{
return check_error(err) ? PyUnicode_FromString(result) : NULL;
}
static PyObject *
string_result_free(long long err, char *result)
{
PyObject *ret;
ret = PyUnicode_FromString(result);
free(result);
return check_error(err) ? ret : NULL;
}
static PyObject *
long_result(long long result)
{
check_error(result);
return PyLong_FromLong(result);
}
static PyObject *
compose(PyObject *self, PyObject *args)
{
long long err;
const char *cube, *permutation;
char result[NISSY_SIZE_B32];
if (!PyArg_ParseTuple(args, "ss", &cube, &permutation))
return NULL;
err = nissy_compose(cube, permutation, result);
return string_result(err, result);
}
static PyObject *
inverse(PyObject *self, PyObject *args)
{
long long err;
const char *cube;
char result[NISSY_SIZE_B32];
if (!PyArg_ParseTuple(args, "s", &cube))
return NULL;
err = nissy_inverse(cube, result);
return string_result(err, result);
}
static PyObject *
applymoves(PyObject *self, PyObject *args)
{
long long err;
const char *cube, *moves;
char result[NISSY_SIZE_B32];
if (!PyArg_ParseTuple(args, "ss", &cube, &moves))
return NULL;
err = nissy_applymoves(cube, moves, result);
return string_result(err, result);
}
static PyObject *
applytrans(PyObject *self, PyObject *args)
{
long long err;
const char *cube, *trans;
char result[NISSY_SIZE_B32];
if (!PyArg_ParseTuple(args, "ss", &cube, &trans))
return NULL;
err = nissy_applytrans(cube, trans, result);
return string_result(err, result);
}
static PyObject *
convert(PyObject *self, PyObject *args)
{
long long err;
const char *fin, *fout, *cube;
char result[MAX_CUBE_STR_LEN];
if (!PyArg_ParseTuple(args, "sss", &fin, &fout, &cube))
return NULL;
err = nissy_convert(fin, fout, cube, MAX_CUBE_STR_LEN, result);
return string_result(err, result);
}
static PyObject *
getcube(PyObject *self, PyObject *args)
{
long long ep, eo, cp, co, err;
const char *options;
char result[NISSY_SIZE_B32];
if (!PyArg_ParseTuple(args, "LLLLs", &ep, &eo, &cp, &co, &options))
return NULL;
err = nissy_getcube(ep, eo, cp, co, options, result);
return string_result(err, result);
}
static PyObject *
datasize(PyObject *self, PyObject *args)
{
long long result;
const char *solver;
if (!PyArg_ParseTuple(args, "s", &solver))
return NULL;
result = nissy_datasize(solver);
return long_result(result);
}
/* TODO: gendata, checkdata and solve and countmoves */
static PyMethodDef nissy_methods[] = {
{ "compose", compose, METH_VARARGS, NULL },
{ "inverse", inverse, METH_VARARGS, NULL },
{ "applymoves", applymoves, METH_VARARGS, NULL },
{ "applytrans", applytrans, METH_VARARGS, NULL },
{ "convert", convert, METH_VARARGS, NULL },
{ "getcube", getcube, METH_VARARGS, NULL },
{ "datasize", datasize, METH_VARARGS, NULL },
{ NULL, NULL, 0, NULL }
};
static struct PyModuleDef nissy_python_module = {
.m_base = PyModuleDef_HEAD_INIT,
.m_name = "nissy",
.m_doc = NULL,
.m_size = -1,
.m_methods = nissy_methods,
.m_slots = NULL,
.m_traverse = NULL,
.m_clear = NULL,
.m_free = NULL
};
static void
log_stdout(const char *str, ...)
{
va_list args;
va_start(args, str);
vfprintf(stderr, str, args);
va_end(args);
}
PyMODINIT_FUNC PyInit_nissy_python_module(void) {
PyObject *module;
nissy_setlogger(log_stdout);
module = PyModule_Create(&nissy_python_module);
PyModule_AddStringConstant(module, "solvedcube", NISSY_SOLVED_CUBE);
return module;
}
|
