summaryrefslogtreecommitdiffstats
path: root/Modules/operator.c
blob: 43324a29c86861097c851e801c884a020d196169 (plain)
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
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
static char operator_doc[] = "\
Operator interface.\n\
\n\
This module exports a set of functions implemented in C corresponding\n\
to the intrinsic operators of Python.  For example, operator.add(x, y)\n\
is equivalent to the expression x+y.  The function names are those\n\
used for special class methods; variants without leading and trailing\n\
'__' are also provided for convenience.\n\
";

/*

     Copyright 

       Copyright 1996 Digital Creations, L.C., 910 Princess Anne
       Street, Suite 300, Fredericksburg, Virginia 22401 U.S.A. All
       rights reserved.  Copyright in this software is owned by DCLC,
       unless otherwise indicated. Permission to use, copy and
       distribute this software is hereby granted, provided that the
       above copyright notice appear in all copies and that both that
       copyright notice and this permission notice appear. Note that
       any product, process or technology described in this software
       may be the subject of other Intellectual Property rights
       reserved by Digital Creations, L.C. and are not licensed
       hereunder.

     Trademarks 

       Digital Creations & DCLC, are trademarks of Digital Creations, L.C..
       All other trademarks are owned by their respective companies. 

     No Warranty 

       The software is provided "as is" without warranty of any kind,
       either express or implied, including, but not limited to, the
       implied warranties of merchantability, fitness for a particular
       purpose, or non-infringement. This software could include
       technical inaccuracies or typographical errors. Changes are
       periodically made to the software; these changes will be
       incorporated in new editions of the software. DCLC may make
       improvements and/or changes in this software at any time
       without notice.

     Limitation Of Liability 

       In no event will DCLC be liable for direct, indirect, special,
       incidental, economic, cover, or consequential damages arising
       out of the use of or inability to use this software even if
       advised of the possibility of such damages. Some states do not
       allow the exclusion or limitation of implied warranties or
       limitation of liability for incidental or consequential
       damages, so the above limitation or exclusion may not apply to
       you.


    If you have questions regarding this software,
    contact:
   
      Jim Fulton, jim@digicool.com
      Digital Creations L.C.  
   
      (540) 371-6909

    Modifications
    
      Renamed and slightly rearranged by Guido van Rossum

*/

#include "Python.h"

#define spam1(OP,AOP) static PyObject *OP(s,a) PyObject *s, *a; { \
  PyObject *a1; \
  if(! PyArg_ParseTuple(a,"O",&a1)) return NULL; \
  return AOP(a1); }

#define spam2(OP,AOP) static PyObject *OP(s,a) PyObject *s, *a; { \
  PyObject *a1, *a2; \
  if(! PyArg_ParseTuple(a,"OO",&a1,&a2)) return NULL; \
  return AOP(a1,a2); }

#define spamoi(OP,AOP) static PyObject *OP(s,a) PyObject *s, *a; { \
  PyObject *a1; int a2; \
  if(! PyArg_ParseTuple(a,"Oi",&a1,&a2)) return NULL; \
  return AOP(a1,a2); }

#define spam2n(OP,AOP) static PyObject *OP(s,a) PyObject *s, *a; { \
  PyObject *a1, *a2; \
  if(! PyArg_ParseTuple(a,"OO",&a1,&a2)) return NULL; \
  if(-1 == AOP(a1,a2)) return NULL; \
  Py_INCREF(Py_None); \
  return Py_None; }

#define spam3n(OP,AOP) static PyObject *OP(s,a) PyObject *s, *a; { \
  PyObject *a1, *a2, *a3; \
  if(! PyArg_ParseTuple(a,"OOO",&a1,&a2,&a3)) return NULL; \
  if(-1 == AOP(a1,a2,a3)) return NULL; \
  Py_INCREF(Py_None); \
  return Py_None; }

#define spami(OP,AOP) static PyObject *OP(s,a) PyObject *s, *a; { \
  PyObject *a1; long r; \
  if(! PyArg_ParseTuple(a,"O",&a1)) return NULL; \
  if(-1 == (r=AOP(a1))) return NULL; \
  return PyInt_FromLong(r); }

#define spami2(OP,AOP) static PyObject *OP(s,a) PyObject *s, *a; { \
  PyObject *a1, *a2; long r; \
  if(! PyArg_ParseTuple(a,"OO",&a1,&a2)) return NULL; \
  if(-1 == (r=AOP(a1,a2))) return NULL; \
  return PyInt_FromLong(r); }

spami(isCallable       , PyCallable_Check)
spami(isNumberType     , PyNumber_Check)
spami(truth            , PyObject_IsTrue)
spam2(op_add           , PyNumber_Add)
spam2(op_sub           , PyNumber_Subtract)
spam2(op_mul           , PyNumber_Multiply)
spam2(op_div           , PyNumber_Divide)
spam2(op_mod           , PyNumber_Remainder)
spam1(op_neg           , PyNumber_Negative)
spam1(op_pos           , PyNumber_Positive)
spam1(op_abs           , PyNumber_Absolute)
spam1(op_inv           , PyNumber_Invert)
spam2(op_lshift        , PyNumber_Lshift)
spam2(op_rshift        , PyNumber_Rshift)
spam2(op_and_          , PyNumber_And)
spam2(op_xor           , PyNumber_Xor)
spam2(op_or_           , PyNumber_Or)
spami(isSequenceType   , PySequence_Check)
spam2(op_concat        , PySequence_Concat)
spamoi(op_repeat       , PySequence_Repeat)
spami2(sequenceIncludes, PySequence_In)
spami2(indexOf         , PySequence_Index)
spami2(countOf         , PySequence_Count)
spami(isMappingType    , PyMapping_Check)
spam2(op_getitem       , PyObject_GetItem)
spam2n(op_delitem       , PyObject_DelItem)
spam3n(op_setitem      , PyObject_SetItem)

static PyObject*
op_getslice(s,a)
        PyObject *s, *a;
{
        PyObject *a1;
        int a2,a3;

        if (!PyArg_ParseTuple(a,"Oii",&a1,&a2,&a3))
                return NULL;
        return PySequence_GetSlice(a1,a2,a3);
}

static PyObject*
op_setslice(s,a)
        PyObject *s, *a;
{
        PyObject *a1, *a4;
        int a2,a3;

        if (!PyArg_ParseTuple(a,"OiiO",&a1,&a2,&a3,&a4))
                return NULL;

        if (-1 == PySequence_SetSlice(a1,a2,a3,a4))
                return NULL;

        Py_INCREF(Py_None);
        return Py_None;
}

static PyObject*
op_delslice(s,a)
        PyObject *s, *a;
{
        PyObject *a1;
        int a2,a3;

        if(! PyArg_ParseTuple(a,"Oii",&a1,&a2,&a3))
                return NULL;

        if (-1 == PySequence_DelSlice(a1,a2,a3))
                return NULL;

        Py_INCREF(Py_None);
        return Py_None;
}

#undef spam1
#undef spam2
#ifdef HAVE_OLD_CPP
#define spam1(OP,DOC) {"OP", OP, 1, DOC},
#define spam2(OP,ALTOP,DOC) {"OP", op_/**/OP, 1, DOC}, \
			   {"ALTOP", op_/**/OP, 1, DOC}, 
#else
#define spam1(OP,DOC) {#OP, OP, 1, DOC},
#define spam2(OP,ALTOP,DOC) {#OP, op_##OP, 1, DOC}, \
			   {#ALTOP, op_##OP, 1, DOC}, 
#endif

static struct PyMethodDef operator_methods[] = {

spam1(isCallable,
 "isCallable(o) -- Return 1 if o is callable, and zero otherwise.")
spam1(isNumberType,
 "isNumberType(o) -- Return 1 if o has a numeric type, and zero otherwise.")
spam1(isSequenceType,
 "isSequenceType(o) -- Return 1 if o has a sequence type, and zero otherwise.")
spam1(truth,
 "truth(o) -- Return 1 if o is true, and 0 otherwise.")
spam1(sequenceIncludes,
 "sequenceIncludes(a, b) -- Return 1 is a includes b, and 0 otherwise.")
spam1(indexOf,
 "indexOf(a, b) -- Return the index of b in a.")
spam1(countOf,
 "countOf(a, b) -- Return the number of times b occurs in a.")
spam1(isMappingType,
 "isMappingType(o) -- Return 1 if o has a mapping type, and zero otherwise.")

spam2(add,__add__, "add(a, b) -- Return a + b, for a and b numbers.")
spam2(sub,__sub__, "sub(a, b) -- Return a - b.")
spam2(mul,__mul__, "mul(a, b) -- Return a * b, for a and b numbers.")
spam2(div,__div__, "div(a, b) -- Return a / b.")
spam2(mod,__mod__, "mod(a, b) -- Return a % b.")
spam2(neg,__neg__, "neg(o) -- Return o negated.")
spam2(pos,__pos__, "pos(o) -- Return o positive.")
spam2(abs,__abs__, "abs(o) -- Return the absolute value of o.")
spam2(inv,__inv__, "inv(o) -- Return the inverse of o.")
spam2(lshift,__lshift__, "lshift(a, b) -- Return a shifted left by b.")
spam2(rshift,__rshift__, "rshift(a, b) -- Return a shifted right by b.")
spam2(and_,__and__, "and_(a, b) -- Return the bitwise and of a and b.")
spam2(xor,__xor__, "xor(a, b) -- Return the bitwise exclusive-or of a and b.")
spam2(or_,__or__, "or_(a, b) -- Return the bitwise or of a and b.")
spam2(concat,__concat__,
 "concat(a, b) -- Return a + b, for a and b sequences.")
spam2(repeat,__repeat__,
 "repeat(a, b) -- Return a * b, where a is a sequence, and b is an integer.")
spam2(getitem,__getitem__,
 "getitem(a, b) -- Return the value of a at index b.")
spam2(setitem,__setitem__,
 "setitem(a, b, c) -- Set the value of a at b to c.")
spam2(delitem,__delitem__,
 "delitem(a, b) -- Delete the value of a at b.")
spam2(getslice,__getslice__,
 "getslice(a, b, c) -- Return the slice of a from b to c-1.")
spam2(setslice,__setslice__,
"setslice(a, b, c, v) -- Set the slice of a from b to c-1 to the sequence v.")
spam2(delslice,__delslice__,
"delslice(a, b, c) -- Delete the slice of a from b to c-1.")

	{NULL,		NULL}		/* sentinel */

};


/* Initialization function for the module (*must* be called initoperator) */

void
initoperator()
{
        PyObject *m, *d;
  
        /* Create the module and add the functions */
        m = Py_InitModule4("operator", operator_methods,
                           operator_doc,
                           (PyObject*)NULL,PYTHON_API_VERSION);

        /* Add some symbolic constants to the module */
        d = PyModule_GetDict(m);
        PyDict_SetItemString(d, "__version__",
                             PyString_FromString("$Rev$"));
  
        /* Check for errors */
        if (PyErr_Occurred())
                Py_FatalError("can't initialize module operator");
}