更新小张高手帮忙debug的程序！

import re
import sys

s = ''
for line in sys.stdin:
    s += line
    if '}' in line:
        break
    t = re.sub(r'(\s*)\w*:(\s*)', r'\n',
               re.sub(r"\s*bool\s*|\s*main\s*\(\s*\)\s|{", r'', re.sub(r'(\W)(\d+\w*)', r'\1a_\2', s)).strip().replace(
                   '=', ' = '))
    x, y, c = 0, 0, 0
    while t.find('done', x + 1) != -1:
        x0 = x
        x = t.find('done', x)
        y = t.find('while', x0)
        c = len(t)
    q = t[y:x].replace(';', ';;').split()
    if "=" in q:
        q[q.index("=") - 2] += ':'
    else:
        q[q.index("pass") - 1] += ':'
        q[q.index('while')] += ' '
    t = t[:y - 1] + '\n' + "".join(q) + t[x + 4:]
    x = x + len(t) - c + 4
    x, y, c = 0, 0, 0
    while t.find('fi', x + 1) != -1:
        x0 = x
        x = t.find('fi', x)
        y = t.find('if', x0)
        c = len(t)
    q = t[y:x].replace(';', ';;').split()
    if "=" in q:
        q[q.index("=") - 2] += ':'
    else:
        q[q.index("pass") - 1] += ':'
        q[q.index('if')] += ' '
    t = t[:y - 1] + '\n' + "".join(q) + t[x + 2:]
    x = x + len(t) - c + 2
    exec(re.sub(r'\s*:', r":", ('def evaluate():\n\tcount=0\n\t' + re.sub(r';+', r'\n',
                                                                          t.replace('done', '').replace("fi",
                                                                                                        '').replace(
                                                                              'pass', '').replace(';;', "\n\t").replace(
                                                                              ':',
                                                                              ':\n\tcount+=1\n\tif (count)>200:\n\t\treturn "infinite"\n\t')).replace(
        '!', ' not ').replace('&', ' and ').replace('|', ' or ').replace('\n', '\n\t').replace('}', '').replace(
        '\n\t\n',
        '\n'))))
print(evaluate())