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 -------------------------------------------------*/