5 * (c) 2004 Straylight/Edgeware
8 /*----- Licensing notice --------------------------------------------------*
10 * This file is part of the Python interface to Catacomb.
12 * Catacomb/Python is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * Catacomb/Python is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with Catacomb/Python; if not, write to the Free Software Foundation,
24 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 /*----- Header files ------------------------------------------------------*/
29 #include "catacomb-python.h"
31 /*----- Main code ---------------------------------------------------------*/
33 PyTypeObject
*bytestring_pytype
;
35 static PyObject
*dowrap(PyTypeObject
*ty
, const void *p
, size_t n
)
37 PyStringObject
*x
= (PyStringObject
*)ty
->tp_alloc(ty
, n
);
38 if (p
) memcpy(x
->ob_sval
, p
, n
);
40 #if defined(CACHE_HASH) || PY_VERSION_HEX >= 0x02030000
43 x
->ob_sstate
= SSTATE_NOT_INTERNED
;
44 return ((PyObject
*)x
);
47 PyObject
*bytestring_pywrap(const void *p
, size_t n
)
48 { return (dowrap(bytestring_pytype
, p
, n
)); }
50 PyObject
*bytestring_pywrapbuf(buf
*b
)
51 { return (dowrap(bytestring_pytype
, BCUR(b
), BLEFT(b
))); }
53 static PyObject
*bytestring_pynew(PyTypeObject
*ty
,
54 PyObject
*arg
, PyObject
*kw
)
58 static char *kwlist
[] = { "data", 0 };
59 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "s#:new", kwlist
, &p
, &n
))
61 return (dowrap(ty
, p
, n
));
64 static PyObject
*meth_ctstreq(PyObject
*me
, PyObject
*args
)
68 if (!PyArg_ParseTuple(args
, "s#s#:ctstreq", &p
, &psz
, &q
, &qsz
))
70 if (psz
== qsz
&& ct_memeq(p
, q
, psz
)) RETURN_TRUE
;
76 static PyObject
*bytestring_pyrichcompare(PyObject
*me
,
77 PyObject
*you
, int op
)
80 void *mystr
, *yourstr
;
81 Py_ssize_t mylen
, yourlen
, minlen
;
83 if (!PyString_Check(me
) || !PyString_Check(you
)) RETURN_NOTIMPL
;
84 mystr
= PyString_AS_STRING(me
); mylen
= PyString_GET_SIZE(me
);
85 yourstr
= PyString_AS_STRING(you
); yourlen
= PyString_GET_SIZE(you
);
89 b
= mylen
== yourlen
&& ct_memeq(mystr
, yourstr
, mylen
);
92 b
= mylen
!= yourlen
|| !ct_memeq(mystr
, yourstr
, mylen
);
95 minlen
= mylen
< yourlen ? mylen
: yourlen
;
96 b
= memcmp(mystr
, yourstr
, minlen
);
97 if (!b
) b
= mylen
< yourlen ?
-1 : mylen
> yourlen ?
+1 : 0;
99 case Py_LT
: b
= b
< 0; break;
100 case Py_LE
: b
= b
<= 0; break;
101 case Py_GE
: b
= b
>= 0; break;
102 case Py_GT
: b
= b
> 0; break;
110 #define BINOP(name, op) \
111 static PyObject *bytestring_py##name(PyObject *x, PyObject *y) { \
112 const void *xv, *yv; \
113 const unsigned char *xp, *yp; \
115 Py_ssize_t xsz, ysz; \
118 if (PyObject_AsReadBuffer(x, &xv, &xsz) || \
119 PyObject_AsReadBuffer(y, &yv, &ysz)) \
121 if (xsz != ysz) VALERR("length mismatch"); \
122 rc = bytestring_pywrap(0, xsz); \
123 xp = xv; yp = yv; zp = (unsigned char *)PyString_AS_STRING(rc); \
124 for (i = xsz; i > 0; i--) *zp++ = *xp++ op *yp++; \
132 #define UNOP(name, op) \
133 static PyObject *bytestring_py##name(PyObject *x) { \
135 const unsigned char *xp; \
140 if (PyObject_AsReadBuffer(x, &xv, &xsz)) goto end; \
141 rc = bytestring_pywrap(0, xsz); \
142 xp = xv; zp = (unsigned char *)PyString_AS_STRING(rc); \
143 for (i = xsz; i > 0; i--) *zp++ = op *xp++; \
149 static PyNumberMethods bytestring_pynumber
= {
151 0, /* @nb_subtract@ */
152 0, /* @nb_multiply@ */
154 0, /* @nb_remainder@ */
157 0, /* @nb_negative@ */
158 0, /* @nb_positive@ */
159 0, /* @nb_absolute@ */
160 0, /* @nb_nonzero@ */
161 bytestring_pynot
, /* @nb_invert@ */
164 bytestring_pyand
, /* @nb_and@ */
165 bytestring_pyxor
, /* @nb_xor@ */
166 bytestring_pyor
, /* @nb_or@ */
175 static PyBufferProcs bytestring_pybuffer
;
177 static PyTypeObject bytestring_pytype_skel
= {
178 PyObject_HEAD_INIT(0) 0, /* Header */
179 "ByteString", /* @tp_name@ */
180 0, /* @tp_basicsize@ */
181 0, /* @tp_itemsize@ */
183 0, /* @tp_dealloc@ */
185 0, /* @tp_getattr@ */
186 0, /* @tp_setattr@ */
187 0, /* @tp_compare@ */
189 &bytestring_pynumber
, /* @tp_as_number@ */
190 0, /* @tp_as_sequence@ */
191 0, /* @tp_as_mapping@ */
195 0, /* @tp_getattro@ */
196 0, /* @tp_setattro@ */
197 &bytestring_pybuffer
, /* @tp_as_buffer@ */
198 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
199 Py_TPFLAGS_CHECKTYPES
|
203 "Byte string class.",
205 0, /* @tp_traverse@ */
207 bytestring_pyrichcompare
, /* @tp_richcompare@ */
208 0, /* @tp_weaklistoffset@ */
210 0, /* @tp_iternext@ */
211 0, /* @tp_methods@ */
212 0, /* @tp_members@ */
216 0, /* @tp_descr_get@ */
217 0, /* @tp_descr_set@ */
218 0, /* @tp_dictoffset@ */
220 PyType_GenericAlloc
, /* @tp_alloc@ */
221 bytestring_pynew
, /* @tp_new@ */
226 /*----- Initialization ----------------------------------------------------*/
228 static PyMethodDef methods
[] = {
229 #define METHNAME(func) meth_##func
230 METH (ctstreq
, "ctstreq(S, T) -> BOOL")
235 #define string_pytype &PyString_Type
236 void bytestring_pyinit(void)
238 INITTYPE(bytestring
, string
);
242 void bytestring_pyinsert(PyObject
*mod
)
244 INSERT("ByteString", bytestring_pytype
);
247 /*----- That's all, folks -------------------------------------------------*/