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
|
/* -*- Mode: C; c-basic-offset: 4 -*-
* pygtk- Python bindings for the GTK toolkit.
* Copyright (C) 1998-2003 James Henstridge
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "pygi-util.h"
gboolean
pygi_guint_from_pyssize (Py_ssize_t pyval, guint *result)
{
if (pyval < 0) {
PyErr_SetString (PyExc_ValueError, "< 0");
return FALSE;
} else if (G_MAXUINT < PY_SSIZE_T_MAX && pyval > (Py_ssize_t)G_MAXUINT) {
PyErr_SetString (PyExc_ValueError, "too large");
return FALSE;
}
*result = (guint)pyval;
return TRUE;
}
/* Better alternative to PyImport_ImportModule which tries to import from
* sys.modules first */
PyObject *
pygi_import_module (const char *name)
{
#if PY_VERSION_HEX < 0x03000000 && !defined(PYPY_VERSION)
/* see PyImport_ImportModuleNoBlock
* https://github.com/python/cpython/blob/2.7/Python/import.c#L2166-L2206 */
PyObject *result = PyImport_ImportModuleNoBlock(name);
if (result)
return result;
PyErr_Clear();
#endif
return PyImport_ImportModule(name);
}
PyObject *
pyg_integer_richcompare(PyObject *v, PyObject *w, int op)
{
PyObject *result;
gboolean t;
switch (op) {
case Py_EQ: t = PYGLIB_PyLong_AS_LONG(v) == PYGLIB_PyLong_AS_LONG(w); break;
case Py_NE: t = PYGLIB_PyLong_AS_LONG(v) != PYGLIB_PyLong_AS_LONG(w); break;
case Py_LE: t = PYGLIB_PyLong_AS_LONG(v) <= PYGLIB_PyLong_AS_LONG(w); break;
case Py_GE: t = PYGLIB_PyLong_AS_LONG(v) >= PYGLIB_PyLong_AS_LONG(w); break;
case Py_LT: t = PYGLIB_PyLong_AS_LONG(v) < PYGLIB_PyLong_AS_LONG(w); break;
case Py_GT: t = PYGLIB_PyLong_AS_LONG(v) > PYGLIB_PyLong_AS_LONG(w); break;
default: g_assert_not_reached();
}
result = t ? Py_True : Py_False;
Py_INCREF(result);
return result;
}
PyObject*
pyg_ptr_richcompare(void* a, void *b, int op)
{
PyObject *res;
switch (op) {
case Py_EQ:
res = (a == b) ? Py_True : Py_False;
break;
case Py_NE:
res = (a != b) ? Py_True : Py_False;
break;
case Py_LT:
res = (a < b) ? Py_True : Py_False;
break;
case Py_LE:
res = (a <= b) ? Py_True : Py_False;
break;
case Py_GT:
res = (a > b) ? Py_True : Py_False;
break;
case Py_GE:
res = (a >= b) ? Py_True : Py_False;
break;
default:
res = Py_NotImplemented;
break;
}
Py_INCREF(res);
return res;
}
/**
* pyg_constant_strip_prefix:
* @name: the constant name.
* @strip_prefix: the prefix to strip.
*
* Advances the pointer @name by strlen(@strip_prefix) characters. If
* the resulting name does not start with a letter or underscore, the
* @name pointer will be rewound. This is to ensure that the
* resulting name is a valid identifier. Hence the returned string is
* a pointer into the string @name.
*
* Returns: the stripped constant name.
*/
const gchar *
pyg_constant_strip_prefix(const gchar *name, const gchar *strip_prefix)
{
size_t prefix_len, i;
prefix_len = strlen(strip_prefix);
/* Check so name starts with strip_prefix, if it doesn't:
* return the rest of the part which doesn't match
*/
for (i = 0; i < prefix_len; i++) {
if (name[i] != strip_prefix[i] && name[i] != '_') {
return &name[i];
}
}
/* strip off prefix from value name, while keeping it a valid
* identifier */
for (i = prefix_len + 1; i > 0; i--) {
if (g_ascii_isalpha(name[i - 1]) || name[i - 1] == '_') {
return &name[i - 1];
}
}
return name;
}
|
