#! /opt/alt/python37/bin/python3.7
# Add some standard cpp magic to a header file
import sys
def main():
args = sys.argv[1:]
for filename in args:
process(filename)
def process(filename):
try:
f = open(filename, 'r')
except IOError as msg:
sys.stderr.write('%s: can\'t open: %s\n' % (filename, str(msg)))
return
data = f.read()
f.close()
if data[:2] != '/*':
sys.stderr.write('%s does not begin with C comment\n' % filename)
return
try:
f = open(filename, 'w')
except IOError as msg:
sys.stderr.write('%s: can\'t write: %s\n' % (filename, str(msg)))
return
sys.stderr.write('Processing %s ...\n' % filename)
magic = 'Py_'
for c in filename:
if ord(c)<=0x80 and c.isalnum():
magic = magic + c.upper()
else: magic = magic + '_'
sys.stdout = f
print('#ifndef', magic)
print('#define', magic)
print('#ifdef __cplusplus')
print('extern "C" {')
print('#endif')
print()
f.write(data)
print()
print('#ifdef __cplusplus')
print('}')
print('#endif')
print('#endif /*', '!'+magic, '*/')
if __name__ == '__main__':
main()
