• In each team project, certain team members will have special assignments:
  • leader
  • recorder
  • librarian
  • collector
  The Team Organization document outlines the duties associated with these assignments. The people who play these roles will be chosen by the team at its first work session for each team project. Team members should play different roles on different assignments. Contact the instructor if your team has difficulty rotating assignments.
• It is important that you use the software each of you developed for Individual Project 2 to complete the team project. Do not redefine those functions. You may use those defined in the solution to Project 2 supplied on the class Web site if those defined by your team members did not meet the requirements of Project 2.
• You may use any aspect of Haskell discussed in Lessons 1-9 of the Haskell text. You may also use the operators words, unwords, head, concatenation (++), or any other operators that have been discussed in class. And, you may use the intrinsic function "last," which delivers the last element in the sequence supplied as its argument. But, you must not use any other aspect of Haskell not covered in Lessons 1-9.

• a listing of the Haskell script the team writes for the project
• a printed copy of a file containing data about automobile ownership in the format specified in the project description
• a session transcript in which you execute the command "main". This causes the Hugs system to produce the value of the variable "main", defined in the project framework in Supplied Software (teamProjAFramework.lhs). The effect of producing the value of main is an interactive session in which the person at the keyboard is prompted to enter lines containing one or more automobile makes and the system responds with a display of information about people who own such automobiles.
• annotated agendas of team meetings

• Car Data File
  Create a file called car.txt whose lines contain information about automobile ownership in following format:

  line of car.txt file:

  name-of-owner street-address city state zipcode make-of-car make-of-second-car

  Each line of the file will contain one record formatted in this way. Individual items on a line will be separated by one or more spaces. Makes of cars will contain no spaces.

  Example car data file

      Karen A Thorson, 112 Main, St Paul MN 55102 Ford Saab
      John Shadley,  1601 S Shepherd, Houston TX 77019   Volkswagen Buick
      William J T Harris, 2300 S Vandalia Av, Tulsa OK 74135 Honda Toyota
      The Noellerts, 6650 Beach Blvd, Buena Park CA 90622 BMW Audi
      Kathleen O'Donnell, 401 N Wabash, Chicago IL 60611 Ford Buick
      Alastair James, 3100 Mass Av NW, Washington DC 20008 Rolls-Royce none
      Barbara Maler, 1946 N Hillside, Wichita KS 67208 Honda Honda
      Ozalp Babaoglu, 1024 Ramona, Palo Alto CA 94301 Toyota Honda
  

  You should make up your file and your test sequence to illustrate your programs capabilities.

• ownerZipcodes :: [String] -> [String] -> [String]
  Define a function called ownerZipcodes with two arguments: (1) a sequence of strings, each element of the sequence being the make of a car and (2) a sequence of strings, each element of which is a line from the car data file. The function will deliver a sequence strings representing the zipcodes of all the people from the second argument who own cars of all the makes designated in the first argument.

  Example invocations of the function "ownerZipcodes"

  Suppose that

    carData = 
      ["Karen A Thorson, 112 Main, St Paul MN 55102 Ford Saab",
       "John Shadley,  1601 S Shepherd, Houston TX 77019   Volkswagen Buick",
       "William J T Harris, 2300 S Vandalia Av, Tulsa OK 74135 Honda Toyota",
       "The Noellerts, 6650 Beach Blvd, Buena Park CA 90622 BMW Audi",
       "Kathleen O'Donnell, 401 N Wabash, Chicago IL 60611 Ford Buick",
       "Alastair James, 3100 Mass Av NW, Washington DC 20008 Rolls-Royce none",
       "Barbara Maler, 1946 N Hillside, Wichita KS 67208 Honda Honda",
       "Ozalp Babaoglu, 1024 Ramona, Palo Alto CA 94301 Toyota Honda"]
  

  Invocation 1

    ownerZipcodes ["Buick"] carData
  

  would deliver

    ["77019", "60611"]
  

  Invocation 2

    ownerZipcodes ["Toyota", "Honda"] carData
  

  would deliver

    ["74135", "94301"]
  

  Invocation 3

    ownerZipcodes ["Jaguar"] carData
  

  would deliver

    [ ]
  

Implementation notes

• Use functions from Individual Project 2 in the definition of "ownerZipcodes". If you have missing team members, or if some of their functions from Individual Project 2 were incorrect, you can use the functions defined in the solution to Project 2 on the Web site, but you should use the functions of your own team members if possible, rather than these.
• Do not worry about duplicate zipcodes in the sequence that ownerZipcodes delivers. A function that delivers a sequence containing duplicates will satisfy the requirements of this project.
• You will probably find it helpful to define a function that, given a string as one argument and a sequence of strings as a second argument, delivers True if the string specified in the first argument is among those strings that make up the elements of the second argument, and False if not.
• Insert your definition of "ownerZipcodes" and of the functions from Individual Project 2 and any other functions defined to complete Team Project A into a copy of the file teamProjAFramework.lhs. (The teamProjAFramework.lhs file indicates where your definitions should go. Don't make any other changes to this file.) The definitions in teamProjAFramework.lhs refer to the function "ownerZipcodes," which your team will define, to extract information from the data in the file car.txt.
• Express your definitions in the form of a literate Haskell script. (See the Project Style Guide.)
• You will need to edit the definitions pulled from solutions to Project 2 to put them in the literate format and to adjust the indentation to match that of the teamProjAFramework.lhs script where you will be inserting your definitions. Indentation marks the boundaries of individual definitions, and those boundaries won't be properly marked unless the indentation is consistent.
• The framework script imports software from the IOutilities module. To make this software available on the system where you are doing the project, download the file IOutilities.lhs from Supplied Software on the class Web site.