Here is a list of projects that you can work on. This is only a suggestion. If you are interested in any project go ahead.
Haskell is rich in libraries and applications to do various tasks. However, it requires a bit of experience to find the right one for the application in mind. You can consult your other friends and also ask me for suggestion on how to proceed.
Here are some suggestions. Of the 30% marks, 10% of the marks goes to the the professionalism of the project. What I mean by this is that your project should
Use a version control system. If you have never used one try out darcs. It is easy to learn and will change your life for the better.
Package the application/library as a cabal package.
If it is a library use Haddock to document it.
Of course you won't get the 10% marks for writing a well documented version of Hello World.
Networking projects can be quite useful. However, remember to use fast string libraries like Data.ByteString and parser libraries like Attoparsec for parsing and generation. An exceptionally fast string building library is the Blaze library. Search google for links.
Implementation of standard protocols like DHCP, DNS, HTTP, SMTP, POP, IMAP etc
A purely Haskell version of the X-Window protocol. The X-windows system is a client, server based windowing system. The current X library is a wraper library on the C, Xlib library. Since the protocol is open it would be a good idea to implement a client library like Xlib fully in haskell. The power of Haskell can be made use of to make certain constructs type safe which the original library does not. For example both windows and Pixmaps are represented by integers in C. So one can legally pass a pixmap id instead of a windows id leading to sometimes disastrous consequences.
Yesod and Happstack are two very interesting frameworks for Haskell web development. Think of a nice web based application and try coding it up.
Use one of the above framework to build an OpenID authentication server.
To build parsers in Haskell there are two routes that one can uses. One is the Alex/Happy route which is like the lex/yacc route for Haskell (but better). Other is the combinator library for parsing like Parsec. Before the start of the project make a decision on which to use and then start. It is usually easier to pick up Parsec (because you dont have to learn another language) than using Alex/Happy however the parsers that use Alex and Happy tend to be faster. Explore both options and the decide on one.
One standard project that people can do is to build a scheme/lisp interpreter.
M4 is a simple but powerful macro processor. Implement an M4 processor.
There are many applications/libraries/languages to do vector graphics. Example include METAFONT, METAPOST for 2-D graphics (mainly used for font generation). All these are mostly imperative ones. Build a library to build vector graphics images. Possible backends could be PDF/PostScript, SVG LaTeX pgf package etc.
Haskell has support to OpenGL. What about designing a simple game in Haskell ? like for example paddle-ball game or pacman.
Developing a CAD system. Think of ways in which engineers can specify plans of buildings, machine parts etc. Use OpenGL for rendering.
Console based menu system. See dialog for some idea. You need to find out what terminal library Haskell supports. Checkout terminfo and its support in Haskell.
Theorem provers.
Sat solvers.
Click here to find a list of projects taken up already.
Please send a mail with your project title, online summary and the project group to me ASAP.