#!/usr/bin/python

#
#
# Extract user names from the .classlist file to load into MarkUs 
# with the Users->Students->Upload feature
#
#	bwbecker	091215
#
# Updated by yc2lee (Nick) on Dec 20 to auto-detect course name

import re,os,pwd

course = pwd.getpwuid(os.getuid())[0]

if __name__ == "__main__":
	
	regex = re.compile('^[0-9]{8}:([a-z0-9]+):([^:]*):.*')
	
	for line in open('/u/%s/.classlist' % course, 'r'):
		match = regex.match(line)
		if match != None:
			userid = match.group(1)
			name = match.group(2)
			userid = userid[0:8]
			print "%s,%s" % (userid, name)