import os

folder = 'announcement/'
filenames = os.listdir(folder)
for filename in filenames:
	print('---'+filename+'---')
	out = []
	f = open(folder+filename, 'r')
	lines = f.readlines()
	for line in lines:
		tmpline = line.lower()
		if 'category:' in tmpline:
			category = tmpline.replace('category:', '').strip()
			continue
		elif 'tags' in tmpline:
			line = line + ', {}'.format(category)
		out.append(line)

	outstring = '\n'.join(out)
	print(outstring)
	outfile = open(folder+filename, 'w')
	#outfile.write(outstring)
	outfile.close()