CIS 252   —   SPRING 2008

CIS 252: ADDITIONAL RESOURCES

Computer Accounts

• ECS students should already have accounts.
  If you do not, click here.
  
  
• If you are not an ECS student:
  • Go to Link 204 ASAP and fill out the form that you will find on the door.
  • They will confirm with me that you really are in this class.
    Then you should be up and running.
  N.B. This account will only last the semester.
  

Textbook-related Goodies

• Web site for Haskell: The Craft of Functional Programming, Second Edition
• Programs appearing in textbook
• Common (and not so common) Hugs error messages

Information on Haskell

• www.haskell.org, the on-line capital of Haskelldom.
• Introductory materials
  • Brief intro to Haskell and its features
  • A Gentle Introduction to Haskell Version 98, by Hudak, Peterson and Fasel
  • Other Haskell books and online tutorials
• Definitions of Haskell 98 and its standard libraries
• Hoogle The Haskell API Search Engine

Hugs Implementations

If you want to install Hugs 98 on your home machine, visit the down loading section of the hugs pages and pick out an apropriate version for your machine.

Note that there are a couple versions of Hugs 98 available on the ECS systems:

1. the Nov 2005 version, and
2. the Nov 2002 version which is the current default for the ECS machines. (There are pre-built versions of this for many systems.)

There are differences between the versions, largely in how modules are handled and how libraries are organized. If you find some standard function seems missing or some module is loading strangely, it could be a problem caused by version differences.

EXAMPLE: In the 2002 version the ord function is always available (it is part of the prelude). However, in the 2005 version, ord is part of the Char module, so you have to import Char in order to use ord.

Hugs Documentation

GHC: An Alternative to Hugs

GHC (= the Glasgow Haskell Compiler) is the state of the art implemention of Haskell and the ghci provides an interactive environment similar to Hugs. The only draw back is that is is much bigger than Hugs.

Emacs Basics

Other Functional-programming references

• Functional Programming in the Real World
• Functional programming FAQ
• John Hughes' Why Functional Programming Matters

Some Turing-machine and Turing references

• An overview of Turing machines from Wikipedia and The Stanford Encyclopedia of Philosophy
• Bios of Turing from Wikipedia and The Stanford Encyclopedia of Philosophy
• Andrew Hodge's "The Alan Turing Home Page"