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genecodes.py
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executable file
·90 lines (71 loc) · 1.72 KB
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#!/usr/bin/env python
# -*- coding: utf-8; -*-
'''
Generate a Python extension module that exports macros from
/usr/include/linux/input.h
'''
import os, sys, re
template = r'''
#include <Python.h>
#include <linux/input.h>
/* Automatically generated by evdev.genecodes */
/* Generated on %s */
#define MODULE_NAME "_ecodes"
#define MODULE_HELP "linux/input.h macros"
static PyMethodDef MethodTable[] = {
{ NULL, NULL, 0, NULL}
};
#if PY_MAJOR_VERSION >= 3
static struct PyModuleDef moduledef = {
PyModuleDef_HEAD_INIT,
MODULE_NAME,
MODULE_HELP,
-1, /* m_size */
MethodTable, /* m_methods */
NULL, /* m_reload */
NULL, /* m_traverse */
NULL, /* m_clear */
NULL, /* m_free */
};
#endif
static PyObject *
moduleinit(void)
{
#if PY_MAJOR_VERSION >= 3
PyObject* m = PyModule_Create(&moduledef);
#else
PyObject* m = Py_InitModule3(MODULE_NAME, MethodTable, MODULE_HELP);
#endif
if (m == NULL) return NULL;
%s
return m;
}
#if PY_MAJOR_VERSION >= 3
PyMODINIT_FUNC
PyInit__ecodes(void)
{
return moduleinit();
}
#else
PyMODINIT_FUNC
init_ecodes(void)
{
moduleinit();
}
#endif
'''
header = '/usr/include/linux/input.h' if len(sys.argv) == 1 else sys.argv[1]
regex = r'#define +((?:KEY|ABS|REL|SW|MSC|LED|BTN|REP|SND|ID|EV|BUS|SYN|FF)_\w+)'
regex = re.compile(regex)
if not os.path.exists(header):
print('no such file: %s' % header)
sys.exit(1)
def getmacros():
for line in open(header):
macro = regex.search(line)
if macro:
yield ' PyModule_AddIntMacro(m, %s);' % macro.group(1)
uname = list(os.uname()); del uname[1]
uname = ' '.join(uname)
macros = os.linesep.join(getmacros())
print(template % (uname, macros))