tables.py

import os
import string

HERE = os.path.dirname(os.path.realpath(__file__))
assert os.path.exists(HERE) and os.path.isdir(HERE)

DIR = os.path.join(HERE, 'include/ebrew/cpp')
assert os.path.exists(DIR) and os.path.isdir(DIR)

def main():
    with open(os.path.join(DIR, 'char-table.h'), 'w', encoding = 'utf-8') as f:
        for i in sorted(string.ascii_letters + string.digits + "=()[]{}<>+-*/%^&_=:./;!~#,", key=ord):
            ones = '1' * ord(i)
            f.write(f'#define len_to_char_{ones}0 {i}\n')

    with open(os.path.join(DIR, 'int-table.h'), 'w', encoding = 'utf-8') as f:
        f.write(f'#define int_0 (0)\n')
        for i in range(1, 256):
            f.write(f'#define int_{i} (1, int_{i-1})\n')

def clean():
    for f in (os.path.join(DIR, 'char-table.h'), os.path.join(DIR, 'int-table.h')):
        if os.path.exists(f):
            os.unlink(f)

if __name__ == '__main__':
    main()