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/*
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 "pyprefix.h"
#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;
}
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