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/* -*- 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;
}
PyObject *
pyg_integer_richcompare(PyObject *v, PyObject *w, int op)
{
PyObject *result;
gboolean t;
switch (op) {
case Py_EQ: t = PyLong_AS_LONG (v) == PyLong_AS_LONG (w); break;
case Py_NE: t = PyLong_AS_LONG (v) != PyLong_AS_LONG (w); break;
case Py_LE: t = PyLong_AS_LONG (v) <= PyLong_AS_LONG (w); break;
case Py_GE: t = PyLong_AS_LONG (v) >= PyLong_AS_LONG (w); break;
case Py_LT: t = PyLong_AS_LONG (v) < PyLong_AS_LONG (w); break;
case Py_GT: t = PyLong_AS_LONG (v) > 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;
}
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