run.py

import subprocess
import argparse
import compile

def main():
    parser = argparse.ArgumentParser()
    parser.add_argument("input", type=argparse.FileType("r"))
    args = parser.parse_args()

    src = compile.build_to_str(target = 'inc', code = args.input.read())

    prep = []

    cur = ''
    for line in src.split('\n'):
        if line.startswith('#'):
            prep.append(line + '\n')
        else:
            cur += line + '\n'

    with open('defines.h', 'w') as f:
        f.writelines(prep)
    
    last = None
    iters = 0
    while last != cur:
        last = cur
        
        with open('file.c', 'w') as f:
            f.write('#include "defines.h"\n')
            f.write(cur)

        cur = subprocess.check_output(['gcc', '-E', '-P', 'file.c']).decode('utf-8')
        print('\x1B[2J' + cur, end='')
        iters += 1

    print('// iters:', iters)

if __name__ == '__main__':
    main()