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
|
/*
py/pyext - python script object for PD and Max/MSP
Copyright (c)2002-2005 Thomas Grill (gr@grrrr.org)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
*/
#include "pysymbol.h"
inline pySymbol *symbol_newsym(const t_symbol *sym)
{
pySymbol *self = (pySymbol *)pySymbol_Type.tp_alloc(&pySymbol_Type, 0);
if(self) self->sym = sym;
return self;
}
static PyObject *symbol_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
return (PyObject *)symbol_newsym(flext::sym__);
}
static int symbol_init(PyObject *self, PyObject *args, PyObject *kwds)
{
FLEXT_ASSERT(pySymbol_Check(self));
PyObject *arg = PySequence_GetItem(args,0); // new reference
if(!arg) return -1;
int ret = 0;
if(pySymbol_Check(arg))
((pySymbol *)self)->sym = pySymbol_AS_SYMBOL(arg);
else if(PyString_Check(arg))
((pySymbol *)self)->sym = flext::MakeSymbol(PyString_AS_STRING(arg));
else
ret = -1;
Py_DECREF(arg);
return ret;
}
static PyObject *symbol_str(PyObject *self)
{
FLEXT_ASSERT(pySymbol_Check(self));
return (PyObject *)PyString_FromString(pySymbol_AS_STRING(self));
}
static PyObject *symbol_repr(PyObject *self)
{
FLEXT_ASSERT(pySymbol_Check(self));
return (PyObject *)PyString_FromFormat("<Symbol %s>",pySymbol_AS_STRING(self));
}
static PyObject *symbol_richcompare(PyObject *a,PyObject *b,int cmp)
{
if(pySymbol_Check(a) && pySymbol_Check(b)) {
const t_symbol *asym = pySymbol_AS_SYMBOL(a);
const t_symbol *bsym = pySymbol_AS_SYMBOL(a);
bool ret;
switch(cmp) {
case Py_LT: ret = asym < bsym;
case Py_LE: ret = asym <= bsym;
case Py_EQ: ret = asym == bsym;
case Py_NE: ret = asym != bsym;
case Py_GT: ret = asym > bsym;
case Py_GE: ret = asym >= bsym;
}
return PyBool_FromLong(ret);
}
Py_INCREF(Py_NotImplemented);
return Py_NotImplemented;
}
static long symbol_hash(PyObject *self)
{
FLEXT_ASSERT(pySymbol_Check(self));
return (long)pySymbol_AS_SYMBOL(self);
}
PyTypeObject pySymbol_Type = {
PyObject_HEAD_INIT(NULL)
0, /*ob_size*/
"Symbol", /*tp_name*/
sizeof(pySymbol), /*tp_basicsize*/
0, /*tp_itemsize*/
0, /*tp_dealloc*/
0, /*tp_print*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_compare*/
symbol_repr, /*tp_repr*/
0, /*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
symbol_hash, /*tp_hash */
0, /*tp_call*/
symbol_str, /*tp_str*/
0, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT /*| Py_TPFLAGS_BASETYPE*/, /*tp_flags*/
"Symbol objects", /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
symbol_richcompare, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
0, /* tp_methods */
0, /* tp_members */
0, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
symbol_init, /* tp_init */
0, /* tp_alloc */
symbol_new, /* tp_new */
};
pySymbol *pySymbol__;
pySymbol *pySymbol_bang;
pySymbol *pySymbol_list;
pySymbol *pySymbol_symbol;
pySymbol *pySymbol_float;
pySymbol *pySymbol_int;
void initsymbol()
{
if(PyType_Ready(&pySymbol_Type) < 0)
FLEXT_ASSERT(false);
else
Py_INCREF(&pySymbol_Type);
// initialize predefined objects
pySymbol__ = symbol_newsym(flext::sym__);
pySymbol_bang = symbol_newsym(flext::sym_bang);
pySymbol_list = symbol_newsym(flext::sym_list);
pySymbol_symbol = symbol_newsym(flext::sym_symbol);
pySymbol_float = symbol_newsym(flext::sym_float);
pySymbol_int = symbol_newsym(flext::sym_int);
}
PyObject *pySymbol_FromSymbol(const t_symbol *sym)
{
pySymbol *op;
if(sym == flext::sym__)
Py_INCREF(op = pySymbol__);
else if(sym == flext::sym_bang)
Py_INCREF(op = pySymbol_bang);
else if(sym == flext::sym_list)
Py_INCREF(op = pySymbol_list);
else if(sym == flext::sym_symbol)
Py_INCREF(op = pySymbol_symbol);
else if(sym == flext::sym_float)
Py_INCREF(op = pySymbol_float);
else if(sym == flext::sym_int)
Py_INCREF(op = pySymbol_int);
else
op = symbol_newsym(sym);
return (PyObject *)op;
}
|
