The Objective

The Background

My local grocery store provides a book called the "Food Guide" for only a few dollars. This book has listed the nutritional data for almost every item they sell. This includes information on pre-made items, mixes and kits, canned or frozen foods, as well as fresh meats, seafood and produce. This book can be used along with your family recipes to construct the nutritional data for each dish you prepare.

Meals can be constructed from these food items that are available in your pantry and totals of the nutritional data can be calculated, so that you'll know how many calories, sodium, etc. each person will consume if they have one helping of each item.

The Task

The Specifics

• Your program should allow the user to choose to create a meal, print the meals already selected, or print the remaining contents of the pantry.
• If the user wants to create a meal, you should:
  • present him/her with a list of food types to choose from
  • After the user has chosen a type, provide a list of items currently in the pantry of that type
  • The user gets to view the nutritional infomation for the food item they've indicated
  • The user must either accept or reject the choice
  • If the user accepts this food item, add it to the current meal and remove it from the pantry
  • Display the list of food item names in the current meal before presenting the list of food types again
  • Choosing quit on the food type menu simply means that the user is finished building the current meal
  • When the user is finished building a meal, present the names of the food items chosen to be in that meal and the nutritional totals per person for the meal.
• If the user chooses to print the meals, print out the names of the food items that comprise each of the meals that was constructed by the user.
• If the user chooses to print the inventory of the pantry, print out the names of the items still remaining in the pantry in lists by type.

• The food's name - a string of no more than 49 characters
• The food's type - either MEAT, STARCH, VEGETABLE, FRUIT or DESSERT
• The food's serving size - a string of no more than 49 characters
• An integer, number of calories
• An integer, milligrams of sodium
• A float, grams of fat
• An integer, milligrams of cholesterol
• A float, grams of saturated fat
• An integer, grams of carbohydrates
• An integer, grams of sugar
• An integer, grams of fiber
• An integer, grams of protein

• The data file, food.dat

  
  You should copy this file into your account by using the following commands:
  (don't forget that there is a dot (.) at the end of the command)

  cp /afs/umbc.edu/users/b/o/bogar/pub/food.dat .

The Specifications

• Your program must take the name of the data file as a command line argument.
• You must use the following structures. You may not change these structures in any way. You may create other typedefs if you wish.

  
  /* a food */
  typedef struct food
  {
     char  name[MAX_STRING_SIZE];
     char  type[TYPE_SIZE];
     char  servingSize[MAX_STRING_SIZE];
     int   numCalories; 
     int   mgSodium; 
     float gmFat;
     int   mgCholesterol;
     float gmSaturatedFat; 
     int   gmCarbohydrates;
     int   gmSugar; 
     int   gmFiber; 
     int   gmProtein;
  } FOOD;
  

  where MAX_STRING_SIZE has been #defined to be 50 and TYPE_SIZE has been #defined to be 10

  /* a node in the linked list */
  typedef struct node
  {
     FOOD data;          /* the data */ 
     struct node *next;  /* pointer to the next node in the list */
  } NODE;
  

• You must originally "stock the pantry" by constucting a linked list for each food type, reading the data from the file.
• You must make a linked list of food items for each meal constructed.
• You must allow the user to construct as many as seven meals.
• Since you will be using dynamic memory allocation, you must free all of the memory that you have allocated before ending your program. Freeing the head of a list will NOT accomplish this task, so you MUST have a function called DestroyList() that frees all of the memory used for a list and also sets the head of the list to NULL. Here is its prototype, which you must use and cannot modify.
  void DestroyList(NODEPTR* headPtr);
• Although the menus that you present to the user do not have to look exactly like those shown in the sample output, they must be neat and orderly.
• Presenting the user with a list of items already chosen for a meal, is helpful feedback when the user is about to make another food item choice, so it is required.
• All errors must be reported to stderr.
• You must guard your .h file(s)
• You must use separate compilation

Your program may make the following assumptions

• The text file will have the format specified above.
• The text file will not contain more items than can fit in memory when you are running on gl.

SampleOutput

There are two approaches to this problem...

1. Use the unix script command to capture your output in a file (named typescript) in order to examine it.
   For more information on the script command, see the Unix man pages.
2. Redirect the output of your program into a file using Unix redirection as discussed in class.

Submitting the Program

To submit your project, type the following at the Unix prompt. Note that the project name starts with uppercase 'P'.

submit cs201 Proj5 proj5.c meals.c meals.h (and possibly other files, separated by spaces)

To verify that your project was submitted, you can execute the following command at the Unix prompt. It will show all files that you submitted in a format similar to the Unix 'ls' command.

submitls cs201 Proj5

Wednesday, 30-Apr-2008 11:03:30 EDT