1import re
2import os
3import sys
4
5input_file = open(sys.argv[1])
6output_file = open(sys.argv[2], 'w')
7
8for line in input_file:
9    m = re.search('^\s+(clang_[^;]+)', line)
10    if m:
11        output_file.write(m.group(1) + "\n")
12