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- /***********************************************************
- Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
- The Netherlands.
-
- All Rights Reserved
-
- Permission to use, copy, modify, and distribute this software and its
- documentation for any purpose and without fee is hereby granted,
- provided that the above copyright notice appear in all copies and that
- both that copyright notice and this permission notice appear in
- supporting documentation, and that the names of Stichting Mathematisch
- Centrum or CWI or Corporation for National Research Initiatives or
- CNRI not be used in advertising or publicity pertaining to
- distribution of the software without specific, written prior
- permission.
-
- While CWI is the initial source for this software, a modified version
- is made available by the Corporation for National Research Initiatives
- (CNRI) at the Internet address ftp://ftp.python.org.
-
- STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
- REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
- MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
- CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
- DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
- PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- PERFORMANCE OF THIS SOFTWARE.
-
- ******************************************************************/
-
- /* Abstract Object Interface (many thanks to Jim Fulton) */
-
- #include "Python.h"
-
- #include "protos/abstract_protos.h"
-
- #define Py_TRY(E) if(!(E)) return NULL
- #define Py_ASSERT(EXP,E,V) if(!(EXP)) return PyErr_SetString(E,V), (void*)NULL
- #define SPAM printf("line %d\n",__LINE__)
-
- static PyObject *
- Py_ReturnMethodError(name)
- char *name;
- {
- if(! name) name = "Unknown Error";
- PyErr_SetString(PyExc_AttributeError,name);
- return 0;
- }
-
- PyObject *
- Py_ReturnNullError Py_PROTO((void))
- {
- if(! PyErr_Occurred())
- PyErr_SetString(PyExc_SystemError,
- "null argument to internal routine");
- return 0;
- }
-
- int
- PyObject_Cmp(o1, o2, result)
- PyObject *o1;
- PyObject *o2;
- int *result;
- {
- int r;
-
- if(! o1 || ! o2) return Py_ReturnNullError(),-1;
- r=PyObject_Compare(o1,o2);
- if(PyErr_Occurred()) return -1;
- *result=r;
- return 0;
- }
-
- #if 0 /* Already in object.c */
- int
- PyCallable_Check(x)
- PyObject *x;
- {
- if (x == NULL)
- return 0;
- if (x->ob_type->tp_call != NULL ||
- PyFunction_Check(x) ||
- PyMethod_Check(x) ||
- PyCFunction_Check(x) ||
- PyClass_Check(x))
- return 1;
- if (PyInstance_Check(x)) {
- PyObject *call = PyObject_GetAttrString(x, "__call__");
- if (call == NULL) {
- PyErr_Clear();
- return 0;
- }
- /* Could test recursively but don't, for fear of endless
- recursion if some joker sets self.__call__ = self */
- Py_DECREF(call);
- return 1;
- }
- return 0;
- }
- #endif
-
- PyObject *
- PyObject_Type(o)
- PyObject *o;
- {
- PyObject *v;
-
- if(! o) return Py_ReturnNullError();
- v = (PyObject *)o->ob_type;
- Py_INCREF(v);
- return v;
- }
-
- int
- PyObject_Length(o)
- PyObject *o;
- {
- PySequenceMethods *m;
-
- if(! o) return Py_ReturnNullError(),-1;
-
- if((m=o->ob_type->tp_as_sequence) && m->sq_length)
- return m->sq_length(o);
-
- return PyMapping_Length(o);
- }
-
- PyObject *
- PyObject_GetItem(o, key)
- PyObject *o;
- PyObject *key;
- {
- PyMappingMethods *m;
-
- if(! o || ! key) return Py_ReturnNullError();
-
- if((m=o->ob_type->tp_as_mapping) && m->mp_subscript)
- return m->mp_subscript(o,key);
-
- if(PyInt_Check(key))
- return PySequence_GetItem(o,PyInt_AsLong(key));
-
- PyErr_SetString(PyExc_TypeError,"expected integer index");
- return NULL;
- }
-
- int
- PyObject_SetItem(o, key, value)
- PyObject *o;
- PyObject *key;
- PyObject *value;
- {
- PyMappingMethods *m;
-
- if(! o || ! key || ! value) return Py_ReturnNullError(),-1;
- if((m=o->ob_type->tp_as_mapping) && m->mp_ass_subscript)
- return m->mp_ass_subscript(o,key,value);
-
- if(PyInt_Check(key))
- return PySequence_SetItem(o,PyInt_AsLong(key),value);
-
- PyErr_SetString(PyExc_TypeError,"expeced integer index");
- return -1;
- }
-
- int
- PyObject_DelItem(o, key)
- PyObject *o;
- PyObject *key;
- {
- PyMappingMethods *m;
-
- if(! o || ! key) return Py_ReturnNullError(),-1;
- if((m=o->ob_type->tp_as_mapping) && m->mp_ass_subscript)
- return m->mp_ass_subscript(o,key,(PyObject*)NULL);
-
- if(PyInt_Check(key))
- return PySequence_SetItem(o,PyInt_AsLong(key),(PyObject*)NULL);
-
- PyErr_SetString(PyExc_TypeError,"expeced integer index");
- return -1;
- }
-
- int
- PyNumber_Check(o)
- PyObject *o;
- {
- return o && o->ob_type->tp_as_number;
- }
-
-
- #define BINOP(opname, ropname, thisfunc) \
- if (!PyInstance_Check(v) && !PyInstance_Check(w)) \
- ; \
- else \
- return PyInstance_DoBinOp(v, w, opname, ropname, thisfunc)
-
- PyObject *
- PyNumber_Or(v, w)
- PyObject *v, *w;
- {
- extern int PyNumber_Coerce();
-
- BINOP("__or__", "__ror__", PyNumber_Or);
- if (v->ob_type->tp_as_number != NULL) {
- PyObject *x;
- PyObject * (*f) Py_FPROTO((PyObject *, PyObject *));
- if (PyNumber_Coerce(&v, &w) != 0)
- return NULL;
- if ((f = v->ob_type->tp_as_number->nb_or) != NULL)
- x = (*f)(v, w);
- Py_DECREF(v);
- Py_DECREF(w);
- if (f != NULL)
- return x;
- }
- PyErr_SetString(PyExc_TypeError, "bad operand type(s) for |");
- return NULL;
- }
-
- PyObject *
- PyNumber_Xor(v, w)
- PyObject *v, *w;
- {
- extern int PyNumber_Coerce();
-
- BINOP("__xor__", "__rxor__", PyNumber_Xor);
- if (v->ob_type->tp_as_number != NULL) {
- PyObject *x;
- PyObject * (*f) Py_FPROTO((PyObject *, PyObject *));
- if (PyNumber_Coerce(&v, &w) != 0)
- return NULL;
- if ((f = v->ob_type->tp_as_number->nb_xor) != NULL)
- x = (*f)(v, w);
- Py_DECREF(v);
- Py_DECREF(w);
- if (f != NULL)
- return x;
- }
- PyErr_SetString(PyExc_TypeError, "bad operand type(s) for ^");
- return NULL;
- }
-
- PyObject *
- PyNumber_And(v, w)
- PyObject *v, *w;
- {
- BINOP("__and__", "__rand__", PyNumber_And);
- if (v->ob_type->tp_as_number != NULL) {
- PyObject *x;
- PyObject * (*f) Py_FPROTO((PyObject *, PyObject *));
- if (PyNumber_Coerce(&v, &w) != 0)
- return NULL;
- if ((f = v->ob_type->tp_as_number->nb_and) != NULL)
- x = (*f)(v, w);
- Py_DECREF(v);
- Py_DECREF(w);
- if (f != NULL)
- return x;
- }
- PyErr_SetString(PyExc_TypeError, "bad operand type(s) for &");
- return NULL;
- }
-
- PyObject *
- PyNumber_Lshift(v, w)
- PyObject *v, *w;
- {
- BINOP("__lshift__", "__rlshift__", PyNumber_Lshift);
- if (v->ob_type->tp_as_number != NULL) {
- PyObject *x;
- PyObject * (*f) Py_FPROTO((PyObject *, PyObject *));
- if (PyNumber_Coerce(&v, &w) != 0)
- return NULL;
- if ((f = v->ob_type->tp_as_number->nb_lshift) != NULL)
- x = (*f)(v, w);
- Py_DECREF(v);
- Py_DECREF(w);
- if (f != NULL)
- return x;
- }
- PyErr_SetString(PyExc_TypeError, "bad operand type(s) for <<");
- return NULL;
- }
-
- PyObject *
- PyNumber_Rshift(v, w)
- PyObject *v, *w;
- {
- BINOP("__rshift__", "__rrshift__", PyNumber_Rshift);
- if (v->ob_type->tp_as_number != NULL) {
- PyObject *x;
- PyObject * (*f) Py_FPROTO((PyObject *, PyObject *));
- if (PyNumber_Coerce(&v, &w) != 0)
- return NULL;
- if ((f = v->ob_type->tp_as_number->nb_rshift) != NULL)
- x = (*f)(v, w);
- Py_DECREF(v);
- Py_DECREF(w);
- if (f != NULL)
- return x;
- }
- PyErr_SetString(PyExc_TypeError, "bad operand type(s) for >>");
- return NULL;
- }
-
- PyObject *
- PyNumber_Add(v, w)
- PyObject *v, *w;
- {
- BINOP("__add__", "__radd__", PyNumber_Add);
- if (v->ob_type->tp_as_sequence != NULL)
- return (*v->ob_type->tp_as_sequence->sq_concat)(v, w);
- else if (v->ob_type->tp_as_number != NULL) {
- PyObject *x;
- if (PyNumber_Coerce(&v, &w) != 0)
- return NULL;
- x = (*v->ob_type->tp_as_number->nb_add)(v, w);
- Py_DECREF(v);
- Py_DECREF(w);
- return x;
- }
- PyErr_SetString(PyExc_TypeError, "bad operand type(s) for +");
- return NULL;
- }
-
- PyObject *
- PyNumber_Subtract(v, w)
- PyObject *v, *w;
- {
- BINOP("__sub__", "__rsub__", PyNumber_Subtract);
- if (v->ob_type->tp_as_number != NULL) {
- PyObject *x;
- if (PyNumber_Coerce(&v, &w) != 0)
- return NULL;
- x = (*v->ob_type->tp_as_number->nb_subtract)(v, w);
- Py_DECREF(v);
- Py_DECREF(w);
- return x;
- }
- PyErr_SetString(PyExc_TypeError, "bad operand type(s) for -");
- return NULL;
- }
-
- PyObject *
- PyNumber_Multiply(v, w)
- PyObject *v, *w;
- {
- PyTypeObject *tp;
- tp = v->ob_type;
- BINOP("__mul__", "__rmul__", PyNumber_Multiply);
- if (tp->tp_as_number != NULL &&
- w->ob_type->tp_as_sequence != NULL &&
- !PyInstance_Check(v)) {
- /* number*sequence -- swap v and w */
- PyObject *tmp = v;
- v = w;
- w = tmp;
- tp = v->ob_type;
- }
- if (tp->tp_as_number != NULL) {
- PyObject *x;
- if (PyInstance_Check(v)) {
- /* Instances of user-defined classes get their
- other argument uncoerced, so they may
- implement sequence*number as well as
- number*number. */
- Py_INCREF(v);
- Py_INCREF(w);
- }
- else if (PyNumber_Coerce(&v, &w) != 0)
- return NULL;
- x = (*v->ob_type->tp_as_number->nb_multiply)(v, w);
- Py_DECREF(v);
- Py_DECREF(w);
- return x;
- }
- if (tp->tp_as_sequence != NULL) {
- if (!PyInt_Check(w)) {
- PyErr_SetString(PyExc_TypeError,
- "can't multiply sequence with non-int");
- return NULL;
- }
- return (*tp->tp_as_sequence->sq_repeat)
- (v, (int)PyInt_AsLong(w));
- }
- PyErr_SetString(PyExc_TypeError, "bad operand type(s) for *");
- return NULL;
- }
-
- PyObject *
- PyNumber_Divide(v, w)
- PyObject *v, *w;
- {
- BINOP("__div__", "__rdiv__", PyNumber_Divide);
- if (v->ob_type->tp_as_number != NULL) {
- PyObject *x;
- if (PyNumber_Coerce(&v, &w) != 0)
- return NULL;
- x = (*v->ob_type->tp_as_number->nb_divide)(v, w);
- Py_DECREF(v);
- Py_DECREF(w);
- return x;
- }
- PyErr_SetString(PyExc_TypeError, "bad operand type(s) for /");
- return NULL;
- }
-
- PyObject *
- PyNumber_Remainder(v, w)
- PyObject *v, *w;
- {
- if (PyString_Check(v)) {
- return PyString_Format(v, w);
- }
- BINOP("__mod__", "__rmod__", PyNumber_Remainder);
- if (v->ob_type->tp_as_number != NULL) {
- PyObject *x;
- if (PyNumber_Coerce(&v, &w) != 0)
- return NULL;
- x = (*v->ob_type->tp_as_number->nb_remainder)(v, w);
- Py_DECREF(v);
- Py_DECREF(w);
- return x;
- }
- PyErr_SetString(PyExc_TypeError, "bad operand type(s) for %");
- return NULL;
- }
-
- PyObject *
- PyNumber_Divmod(v, w)
- PyObject *v, *w;
- {
- PyObject *res;
-
- if (PyInstance_Check(v) || PyInstance_Check(w))
- return PyInstance_DoBinOp(v, w, "__divmod__", "__rdivmod__",
- PyNumber_Divmod);
- if (v->ob_type->tp_as_number == NULL ||
- w->ob_type->tp_as_number == NULL) {
- PyErr_SetString(PyExc_TypeError,
- "divmod() requires numeric or class instance arguments");
- return NULL;
- }
- if (PyNumber_Coerce(&v, &w) != 0)
- return NULL;
- res = (*v->ob_type->tp_as_number->nb_divmod)(v, w);
- Py_DECREF(v);
- Py_DECREF(w);
- return res;
- }
-
-
- static PyObject *
- do_pow(v, w)
- PyObject *v, *w;
- {
- PyObject *res;
- if (PyInstance_Check(v) || PyInstance_Check(w))
- return PyInstance_DoBinOp(v, w, "__pow__", "__rpow__", do_pow);
- if (v->ob_type->tp_as_number == NULL ||
- w->ob_type->tp_as_number == NULL) {
- PyErr_SetString(PyExc_TypeError,
- "pow() requires numeric arguments");
- return NULL;
- }
- if (PyFloat_Check(w) && PyFloat_AsDouble(v) < 0.0) {
- if (!PyErr_Occurred())
- PyErr_SetString(PyExc_ValueError,
- "negative number to float power");
- return NULL;
- }
- if (PyNumber_Coerce(&v, &w) != 0)
- return NULL;
- res = (*v->ob_type->tp_as_number->nb_power)(v, w, Py_None);
- Py_DECREF(v);
- Py_DECREF(w);
- return res;
- }
-
- PyObject *
- PyNumber_Power(v,w,z)
- PyObject *v, *w, *z;
- {
- PyObject *res;
- PyObject *v1, *z1, *w2, *z2;
-
- if (z == Py_None)
- return do_pow(v, w);
- /* XXX The ternary version doesn't do class instance coercions */
- if (PyInstance_Check(v))
- return v->ob_type->tp_as_number->nb_power(v, w, z);
- if (v->ob_type->tp_as_number == NULL ||
- z->ob_type->tp_as_number == NULL ||
- w->ob_type->tp_as_number == NULL) {
- PyErr_SetString(PyExc_TypeError, "pow() requires numeric arguments");
- return NULL;
- }
- if (PyNumber_Coerce(&v, &w) != 0)
- return NULL;
- res = NULL;
- v1 = v;
- z1 = z;
- if (PyNumber_Coerce(&v1, &z1) != 0)
- goto error2;
- w2 = w;
- z2 = z1;
- if (PyNumber_Coerce(&w2, &z2) != 0)
- goto error1;
- res = (*v1->ob_type->tp_as_number->nb_power)(v1, w2, z2);
- Py_DECREF(w2);
- Py_DECREF(z2);
- error1:
- Py_DECREF(v1);
- Py_DECREF(z1);
- error2:
- Py_DECREF(v);
- Py_DECREF(w);
- return res;
- }
-
-
- PyObject *
- PyNumber_Negative(v)
- PyObject *v;
- {
- if (v->ob_type->tp_as_number != NULL)
- return (*v->ob_type->tp_as_number->nb_negative)(v);
- PyErr_SetString(PyExc_TypeError, "bad operand type(s) for unary -");
- return NULL;
- }
-
- PyObject *
- PyNumber_Positive(v)
- PyObject *v;
- {
- if (v->ob_type->tp_as_number != NULL)
- return (*v->ob_type->tp_as_number->nb_positive)(v);
- PyErr_SetString(PyExc_TypeError, "bad operand type(s) for unary +");
- return NULL;
- }
-
- PyObject *
- PyNumber_Invert(v)
- PyObject *v;
- {
- PyObject * (*f) Py_FPROTO((PyObject *));
- if (v->ob_type->tp_as_number != NULL &&
- (f = v->ob_type->tp_as_number->nb_invert) != NULL)
- return (*f)(v);
- PyErr_SetString(PyExc_TypeError, "bad operand type(s) for unary ~");
- return NULL;
- }
-
- PyObject *
- PyNumber_Absolute(o)
- PyObject *o;
- {
- PyNumberMethods *m;
-
- if(! o) return Py_ReturnNullError();
- if((m=o->ob_type->tp_as_number) && m->nb_absolute)
- return m->nb_absolute(o);
-
- return Py_ReturnMethodError("__abs__");
- }
-
- PyObject *
- PyNumber_Int(o)
- PyObject *o;
- {
- PyNumberMethods *m;
-
- if(! o) return Py_ReturnNullError();
- if((m=o->ob_type->tp_as_number) && m->nb_int)
- return m->nb_int(o);
-
- return Py_ReturnMethodError("__int__");
- }
-
- PyObject *
- PyNumber_Long(o)
- PyObject *o;
- {
- PyNumberMethods *m;
-
- if(! o) return Py_ReturnNullError();
- if((m=o->ob_type->tp_as_number) && m->nb_long)
- return m->nb_long(o);
-
- return Py_ReturnMethodError("__long__");
- }
-
- PyObject *
- PyNumber_Float(o)
- PyObject *o;
- {
- PyNumberMethods *m;
-
- if(! o) return Py_ReturnNullError();
- if((m=o->ob_type->tp_as_number) && m->nb_float)
- return m->nb_float(o);
-
- return Py_ReturnMethodError("__float__");
- }
-
-
- int
- PySequence_Check(o)
- PyObject *o;
- {
- return o && o->ob_type->tp_as_sequence;
- }
-
- int
- PySequence_Length(s)
- PyObject *s;
- {
- PySequenceMethods *m;
-
- if(! s) return Py_ReturnNullError(),-1;
-
- if((m=s->ob_type->tp_as_sequence) && m->sq_length)
- return m->sq_length(s);
-
- Py_ReturnMethodError("__len__");
- return -1;
- }
-
- PyObject *
- PySequence_Concat(s, o)
- PyObject *s;
- PyObject *o;
- {
- PySequenceMethods *m;
-
- if(! s || ! o) return Py_ReturnNullError();
-
- if((m=s->ob_type->tp_as_sequence) && m->sq_concat)
- return m->sq_concat(s,o);
-
- return Py_ReturnMethodError("__concat__");
- }
-
- PyObject *
- PySequence_Repeat(o, count)
- PyObject *o;
- int count;
- {
- PySequenceMethods *m;
-
- if(! o) return Py_ReturnNullError();
-
- if((m=o->ob_type->tp_as_sequence) && m->sq_repeat)
- return m->sq_repeat(o,count);
-
- return Py_ReturnMethodError("__repeat__");
- }
-
- PyObject *
- PySequence_GetItem(s, i)
- PyObject *s;
- int i;
- {
- PySequenceMethods *m;
- int l;
-
- if(! s) return Py_ReturnNullError();
-
- if(! ((m=s->ob_type->tp_as_sequence) && m->sq_length && m->sq_item))
- return Py_ReturnMethodError("__getitem__");
-
- if(0 > (l=m->sq_length(s))) return NULL;
-
- if(i < 0) i += l;
-
- return m->sq_item(s,i);
- }
-
- PyObject *
- PySequence_GetSlice(s, i1, i2)
- PyObject *s;
- int i1;
- int i2;
- {
- PySequenceMethods *m;
- int l;
-
- if(! s) return Py_ReturnNullError();
-
- if(! ((m=s->ob_type->tp_as_sequence) && m->sq_length && m->sq_slice))
- return Py_ReturnMethodError("__getslice__");
-
- if(0 > (l=m->sq_length(s))) return NULL;
-
- if(i1 < 0) i1 += l;
- if(i2 < 0) i2 += l;
-
- return m->sq_slice(s,i1,i2);
- }
-
- int
- PySequence_SetItem(s, i, o)
- PyObject *s;
- int i;
- PyObject *o;
- {
- PySequenceMethods *m;
- int l;
- if(! s) return Py_ReturnNullError(),-1;
-
- if(! ((m=s->ob_type->tp_as_sequence) && m->sq_length && m->sq_ass_item))
- return Py_ReturnMethodError("__setitem__"),-1;
-
- if(i < 0)
- {
- if(0 > (l=m->sq_length(s))) return -1;
- i += l;
- }
-
- return m->sq_ass_item(s,i,o);
- }
-
- int
- PySequence_DelItem(s, i)
- PyObject *s;
- int i;
- {
- PySequenceMethods *m;
- int l;
- if(! s) return Py_ReturnNullError(),-1;
-
- if(! ((m=s->ob_type->tp_as_sequence) && m->sq_length && m->sq_ass_item))
- return Py_ReturnMethodError("__delitem__"),-1;
-
- if(i < 0)
- {
- if(0 > (l=m->sq_length(s))) return -1;
- i += l;
- }
-
- return m->sq_ass_item(s,i,(PyObject*)NULL);
- }
-
- int
- PySequence_SetSlice(s, i1, i2, o)
- PyObject *s;
- int i1;
- int i2;
- PyObject *o;
- {
- PySequenceMethods *m;
- int l;
-
- if(! s) return Py_ReturnNullError(),-1;
-
- if(! ((m=s->ob_type->tp_as_sequence) && m->sq_length && m->sq_ass_slice))
- return Py_ReturnMethodError("__setslice__"),-1;
-
- if(0 > (l=m->sq_length(s))) return -1;
-
- if(i1 < 0) i1 += l;
- if(i2 < 0) i2 += l;
-
- return m->sq_ass_slice(s,i1,i2,o);
- }
-
- int
- PySequence_DelSlice(s, i1, i2)
- PyObject *s;
- int i1;
- int i2;
- {
- PySequenceMethods *m;
- int l;
-
- if(! s) return Py_ReturnNullError(),-1;
-
- if(! ((m=s->ob_type->tp_as_sequence) && m->sq_length && m->sq_ass_slice))
- return Py_ReturnMethodError("__delslice__"),-1;
-
- if(0 > (l=m->sq_length(s))) return -1;
-
- if(i1 < 0) i1 += l;
- if(i2 < 0) i2 += l;
-
- return m->sq_ass_slice(s,i1,i2,(PyObject*)NULL);
- }
-
- PyObject *
- PySequence_Tuple(s)
- PyObject *s;
- {
- int l, i;
- PyObject *t, *item;
-
- if(! s) return Py_ReturnNullError();
-
- Py_TRY((l=PySequence_Length(s)) != -1);
- Py_TRY(t=PyTuple_New(l));
-
- for(i=0; i < l; i++)
- {
- if(item=PySequence_GetItem(s,i))
- {
- if(PyTuple_SetItem(t,i,item) == -1)
- {
- Py_DECREF(item);
- Py_DECREF(t);
- return NULL;
- }
- }
- else
- {
- Py_DECREF(t);
- return NULL;
- }
- }
- return t;
- }
-
- int
- PySequence_Count(s, o)
- PyObject *s;
- PyObject *o;
- {
- int l, i, n=0, not_equal, err;
- PyObject *item;
-
- if(! s || ! o) return Py_ReturnNullError(), -1;
- Py_TRY((l=PySequence_Length(s)) != -1),-1;
-
- for(i=0; i < l; i++)
- {
- Py_TRY(item=PySequence_GetItem(s,i)),-1;
- err=PyObject_Cmp(item,o,¬_equal) == -1;
- Py_DECREF(item);
- if(err) return -1;
- n += ! not_equal;
- }
- return n;
- }
-
- int
- PySequence_In(s, o)
- PyObject *s;
- PyObject *o;
- {
- int l, i, not_equal, err;
- PyObject *item;
-
- if(! o || ! s) return Py_ReturnNullError(), -1;
- Py_TRY((l=PySequence_Length(s)) != -1),-1;
-
- for(i=0; i < l; i++)
- {
- Py_TRY(item=PySequence_GetItem(s,i)),-1;
- err=PyObject_Cmp(item,o,¬_equal) == -1;
- Py_DECREF(item);
- if(err) return -1;
- if(! not_equal) return 1;
- }
- return 0;
- }
-
- int
- PySequence_Index(s, o)
- PyObject *s;
- PyObject *o;
- {
- int l, i, n=0, not_equal, err;
- PyObject *item;
-
- if(! s || ! o) return Py_ReturnNullError(), -1;
- Py_TRY((l=PySequence_Length(s)) != -1),-1;
-
- for(i=0; i < l; i++)
- {
- Py_TRY(item=PySequence_GetItem(s,i)),-1;
- err=PyObject_Cmp(item,o,¬_equal) == -1;
- Py_DECREF(item);
- if(err) return -1;
- if(! not_equal) return n;
- }
- return -1;
- }
-
- int
- PyMapping_Check(o)
- PyObject *o;
- {
- return o && o->ob_type->tp_as_mapping;
- }
-
- int
- PyMapping_Length(s)
- PyObject *s;
- {
- PyMappingMethods *m;
-
- if(! s) return Py_ReturnNullError(),-1;
-
- if((m=s->ob_type->tp_as_mapping) && m->mp_length)
- return m->mp_length(s);
-
- Py_ReturnMethodError("__len__");
- return -1;
- }
-
- int
- PyMapping_HasKeyString(o, key)
- PyObject *o;
- char *key;
- {
- PyObject *v;
-
- v=PyMapping_GetItemString(o,key);
- if(v) return 1;
- PyErr_Clear();
- return 0;
- }
-
- int
- PyMapping_HasKey(o, key)
- PyObject *o;
- PyObject *key;
- {
- PyObject *v;
-
- v=PyObject_GetItem(o,key);
- if(v) return 1;
- PyErr_Clear();
- return 0;
- }
-
- PyObject *
- PyObject_CallObject(o, a)
- PyObject *o, *a;
- {
- PyObject *r;
-
- if(a) return PyEval_CallObject(o,a);
-
- if(! (a=PyTuple_New(0)))
- return NULL;
- r=PyEval_CallObject(o,a);
- Py_DECREF(a);
- return r;
- }
-
- PyObject *
- #ifdef HAVE_STDARG_PROTOTYPES
- /* VARARGS 2 */
- PyObject_CallFunction(PyObject *callable, char *format, ...)
- #else
- /* VARARGS */
- PyObject_CallFunction(va_alist) va_dcl
- #endif
- {
- va_list va;
- PyObject *args, *retval;
- #ifdef HAVE_STDARG_PROTOTYPES
- va_start(va, format);
- #else
- PyObject *callable;
- char *format;
- va_start(va);
- callable = va_arg(va, PyObject *);
- format = va_arg(va, char *);
- #endif
-
- if( ! callable)
- {
- va_end(va);
- return Py_ReturnNullError();
- }
-
- if(format)
- args = Py_VaBuildValue(format, va);
- else
- args = PyTuple_New(0);
-
- va_end(va);
- if(! args) return NULL;
-
- if(! PyTuple_Check(args))
- {
- PyObject *a;
-
- Py_TRY(a=PyTuple_New(1));
- Py_TRY(PyTuple_SetItem(a,0,args) != -1);
- args=a;
- }
- retval = PyObject_CallObject(callable,args);
- Py_DECREF(args);
- return retval;
- }
-
- PyObject *
- #ifdef HAVE_STDARG_PROTOTYPES
- /* VARARGS 2 */
- PyObject_CallMethod(PyObject *o, char *name, char *format, ...)
- #else
- /* VARARGS */
- PyObject_CallMethod(va_alist) va_dcl
- #endif
- {
- va_list va;
- PyObject *args, *meth=0, *retval;
- #ifdef HAVE_STDARG_PROTOTYPES
- va_start(va, format);
- #else
- PyObject *o;
- char *name;
- char *format;
- va_start(va);
- o = va_arg(va, PyObject *);
- name = va_arg(va, char *);
- format = va_arg(va, char *);
- #endif
-
- if( ! o || ! name)
- {
- va_end(va);
- return Py_ReturnNullError();
- }
-
- meth=PyObject_GetAttrString(o,name);
- if(! meth)
- {
- va_end(va);
- PyErr_SetString(PyExc_AttributeError,name);
- return 0;
- }
-
- if(! (PyCallable_Check(meth)))
- {
- va_end(va);
- PyErr_SetString(PyExc_TypeError,"call of non-callable attribute");
- return 0;
- }
-
- if(format && *format)
- args = Py_VaBuildValue(format, va);
- else
- args = PyTuple_New(0);
-
- va_end(va);
-
- if(! args) return NULL;
-
- if(! PyTuple_Check(args))
- {
- PyObject *a;
-
- Py_TRY(a=PyTuple_New(1));
- Py_TRY(PyTuple_SetItem(a,0,args) != -1);
- args=a;
- }
-
- retval = PyObject_CallObject(meth,args);
- Py_DECREF(args);
- Py_DECREF(meth);
- return retval;
- }
-
- PyObject *
- PyMapping_GetItemString(o, key)
- PyObject *o;
- char *key;
- {
- PyObject *okey, *r;
-
- if( ! key) return Py_ReturnNullError();
- Py_TRY(okey=PyString_FromString(key));
- r = PyObject_GetItem(o,okey);
- Py_DECREF(okey);
- return r;
- }
-
- int
- PyMapping_SetItemString(o, key, value)
- PyObject *o;
- char *key;
- PyObject *value;
- {
- PyObject *okey;
- int r;
-
- if( ! key) return Py_ReturnNullError(),-1;
- if (!(okey=PyString_FromString(key))) return -1;
- r = PyObject_SetItem(o,okey,value);
- Py_DECREF(okey);
- return r;
- }
-