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Dropped file imported by mistake.

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Daniele Varrazzo 2010-11-08 22:43:55 +00:00
parent 62d3a1533b
commit 916c172cf7
1 changed files with 0 additions and 147 deletions
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psycopg/typecast_basic.c.old
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/* pgcasts_basic.c - basic typecasting functions to python types
*
* Copyright (C) 2001-2003 Federico Di Gregorio <fog@debian.org>
*
* This file is part of the psycopg module.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2,
* or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <libpq-fe.h>
/** INTEGER - cast normal integers (4 bytes) to python int **/
static PyObject *
typecast_INTEGER_cast(PyObject *s, PyObject *curs)
{
if (s == Py_None) {Py_INCREF(s); return s;}
return PyNumber_Int(s);
}
/** LONGINTEGER - cast long integers (8 bytes) to python long **/
static PyObject *
typecast_LONGINTEGER_cast(PyObject *s, PyObject *curs)
{
if (s == Py_None) {Py_INCREF(s); return s;}
return PyNumber_Long(s);
}
/** FLOAT - cast floating point numbers to python float **/
static PyObject *
typecast_FLOAT_cast(PyObject *s, PyObject *curs)
{
if (s == Py_None) {Py_INCREF(s); return s;}
return PyNumber_Float(s);
}
/** STRING - cast strings of any type to python string **/
static PyObject *
typecast_STRING_cast(PyObject *s, PyObject *curs)
{
Py_INCREF(s);
return s;
}
/** BINARY - cast a binary string into a python string **/
/* the function typecast_BINARY_cast_unescape is used when libpq does not
provide PQunescapeBytea: it convert all the \xxx octal sequences to the
proper byte value */
#ifdef PSYCOPG_OWN_QUOTING
static unsigned char *
typecast_BINARY_cast_unescape(unsigned char *str, size_t *to_length)
{
char *dstptr, *dststr;
int len, i;
len = strlen(str);
dststr = (char*)calloc(len, sizeof(char));
dstptr = dststr;
if (dststr == NULL) return NULL;
Py_BEGIN_ALLOW_THREADS;
for (i = 0; i < len; i++) {
if (str[i] == '\\') {
if ( ++i < len) {
if (str[i] == '\\') {
*dstptr = '\\';
}
else {
*dstptr = 0;
*dstptr |= (str[i++] & 7) << 6;
*dstptr |= (str[i++] & 7) << 3;
*dstptr |= (str[i] & 7);
}
}
}
else {
*dstptr = str[i];
}
dstptr++;
}
Py_END_ALLOW_THREADS;
*to_length = (size_t)(dstptr-dststr);
return dststr;
}
#define PQunescapeBytea typecast_BINARY_cast_unescape
#endif
static PyObject *
typecast_BINARY_cast(PyObject *s, PyObject *curs)
{
PyObject *res;
unsigned char *str;
size_t len;
if (s == Py_None) {Py_INCREF(s); return s;}
str = PQunescapeBytea(PyString_AS_STRING(s), &len);
res = PyBuffer_FromMemory((void*)str, len);
free(str);
return res;
}
/** BOOLEAN - cast boolean value into right python object **/
static PyObject *
typecast_BOOLEAN_cast(PyObject *s, PyObject *curs)
{
PyObject *res;
if (s == Py_None) {Py_INCREF(s); return s;}
if (PyString_AS_STRING(s)[0] == 't')
res = Py_True;
else
res = Py_False;
Py_INCREF(res);
return res;
}
/* some needed aliases */
#define typecast_NUMBER_cast typecast_FLOAT_cast
#define typecast_ROWID_cast typecast_INTEGER_cast