#/usr/bin/env python
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#  or more contributor license agreements.  See the NOTICE file
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#  regarding copyright ownership.  The ASF licenses this file
#  to you under the Apache License, Version 2.0 (the
#  "License"); you may not use this file except in compliance
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#  
#    http://www.apache.org/licenses/LICENSE-2.0
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import re,os

def grep(pattern,dirname,names):
	for name in names:
		filename = os.path.join(dirname,name)
		if os.path.isfile(filename):
			lines = open(filename,"r").readlines()
			for line in lines:
				if pattern.search(line):
					print(filename)
					break


def find(pattern,directory = "."):
	os.path.walk(directory,grep,re.compile(pattern))

	
if __name__ == "__main__":
	import sys
	if len(sys.argv) == 2:
		find(sys.argv[1])
	elif len(sys.argv) == 2:
		find(sys.argv[2],sys.argv[1])