Advanced Programming, Jan-Apr 2011
                          Assignment 1
                  Due Monday, 7 February, 2011

Here are some basic facts about tennis scoring:

- A tennis match is made up of sets.  A set is made up of games.  

- To win a set, a player has to win 6 games with a difference of
  2 games.  At 6-6, there is often a special tie-breaker.  In
  some cases, players go on playing till one of them wins the set
  with a difference of two games.

- Tennis matches can be either 3 sets or 5 sets.  The player who
  wins a majority of sets wins the match (i.e., 2 out 3 sets or 3
  out of 5 sets)

The score of a match lists out the games in each set, with the
overall winner's score reported first for each set.  Thus, if the
score is 6-3, 5-7, 7-6 it means that the first player won the
first set by 6 games to 3, lost the second one 5 games to 7 and
won the third one 7 games to 6 (and hence won the overall match
as well by 2 sets to 1).

You will be given a text file containing the results of several
tennis matches.  Each match's score is recorded on a separate
line with the following format:

Winner:Loser:Set-1-score,...,Set-k-score  where 2 <= k <= 5

For example:

Clijsters:Na:3-6,6-3,6-3

indicates that Clijsters beat Na 3-6, 6-3, 6-3 in a best of 3 set
match. 

Your program should read information about all the matches and
compile the following statistics for each player:

1. Number of best-of-5 set matches won
2. Number of best-of-3 set matches won
3. Number of sets won
4. Number of games won
5. Number of sets lost
6. Number of games lost

You should print out a summary in decreasing order of ranking,
where the ranking is according to the criteria 1-6 in that order
(compare item 1, if equal compare item 2, if equal compare item 3
etc, noting that for items 5 and 6 the comparison is reversed).

For instance, given the following data

Federer:Nadal:2-6,6-7,7-6,6-3,6-1
Nadal:Federer:6-3,4-6,6-4,6-3
Federer:Nadal:6-0,7-6,6-7,6-3
Nadal:Federer:6-4,6-4
Federer:Nadal:2-6,6-2,6-0
Nadal:Federer:6-3,4-6,6-3,6-4
Federer:Nadal:7-6,4-6,7-6,2-6,6-2
Nadal:Federer:7-5,7-5
Clijsters:Na:3-6,6-3,6-3

your program should print out the following

Federer 3 1 13 142 16 143
Nadal 2 2 16 143 13 142
Clijsters 0 1 2 15 1 12
Na 0 0 1 12 2 15

You can assume that there are no spaces around the punctuation
marks ":", "-" and ",".  Each player's name will be spelled
consistently and no two players have the same name.

Your program should read its input from a text file "tennis.in"
and write its output to to a text file "tennis.out".

Submit a single Python program called "assignment1.py" (via Moodle).

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