Hi I need help with my C program to print a Library reciept using Linux with a d

Question

Hi I need help with my C program to print a Library reciept using Linux with a driver program that can't be changed and h file.

Change processTransaction:

o Receives Node **ppHead instead of the bookM array and count

o Uses searchLL to find a book in the ordered linked list.

p = searchLL(*ppHead, book.szBookId, &pPrecedes);

o Uses pointer notation to update the contents of a node instead of the contents of an array element

(e.g., p0>book.szCustomerId instead of bookM[i].szCustomerId)

• Change processCustomerCommand:

o Receives Node **ppHead instead of the bookM array and count

o Invokes processTransaction passing ppHead instead of the bookM array and count

• Change processBookCommand:

o Receives Node **ppHead instead of the bookM array and count

o Uses searchLL to find a book in the ordered linked list:

p = searchBooks(*ppHead, book.szBookId, &pPrecedes);

o Uses pointer notation to reference a book instead of referencing an element of the bookM array.

o Add code for the new BOOK NEW subcommand. This should sscanf the data into elements of a Book

structure (declared using Book book). It should then pass that book to insertLL.

Here is what I have so far.

// If compiling using visual studio, tell the compiler not to give its warnings

// about the safety of scanf and printf

#define _CRT_SECURE_NO_WARNINGS 1

#include

#include

#include

#include "cs1713p4.h"

void printBook(Book * book) {

printf(" %-9s %-6s %-10s %lf %lf %40s "

   , book->szBookId

   , book->szCustomerId

   , book->szCheckedOutDt

   , book->dLateFeePerDay

   , book->dMaxLateFee

   , book->szTitle);

  

}

void printBookHeading() {

printf(" %-9s %-6s %-10s %-6s %-6s %-40s "

   , "Book Id", "Customer Id", "Checked Out Date", "Late Fee Per Day", "Max Late Fee", "Title");

}

/******************** printBooks **************************************

void printBooks(char *pszHeading, Book bookM[], int iBookCnt)

Purpose:

Prints each book in a table format

Parameters:

I char *pszHeading Heading to print before printing the table of books

I Book bookM[] Array of books

I int iBookCnt Number of elements in the bookM array.

Returns:

n/a

Notes:

**************************************************************************/

void printBooks(char *pszHeading, Node *pHead) {

printf("%s ", pszHeading);

  

printBookHeading();

  

while(pHead != NULL) {

printBook(&(pHead->book));

pHead = pHead->pNext;

}

}

/********************processCustomerCommand *****************************

void processCustomerCommand(Book bookM[], int iBookCnt

, char *pszSubCommand, char *pszRemainingInput

, Customer *pCustomer)

Purpose:

Processes the subcommands associated with the CUSTOMER command:

CUSTOMER BEGIN szBookId szCustomerId szCheckedOutDt dLateFeePerDay dMaxLateFee szTitle

specifies the beginning of customer request and includes all the identification information from program 2.

CUSTOMER ADDRESS szStreetAddress,szCity,szStateCd,szZipCd

specifies the address for a customer (separated by commas)

CUSTOMER TRANS cTransType szBookId szTransDt

specifies a single book transaction. Steps:

-   Print the Transaction Type, Book Id, and Transaction Date

-   Lookup the book ID using a binary search. If not found, print a warning (but do not terminate your program) and return.

-   If the transaction date is invalid, show a message stating "invalid date", but do not terminate. Use the validateDate function.

-   If the transaction type is C (meaning checkout):

o   If the book is already checked out, show a message stating "already checked out", but do not terminate.

o   Otherwise, check out the book to this customer, setting the book's customer ID. The book's checked out date needs to be set to the transaction's date.

-   If the transaction type is R (meaning return):

o   Use dateDiff to subtract the book's szCheckOutDt from the transaction's szTransDt

o   If the difference is more than 14:

--   Determine the number of days late by subtracting 14 from that difference.

--   Compute the late fee by multiplying the number of days late by the book's dLateFeePerDay.

--   If that late fee is greater than the book's dMaxLateFee, change it to dMaxLateFee.

-- Print the late fee.

--   Add the computed late fee to the customer's dFeeBalance

o   Set the book's customer ID to "NONE".

o   Set the book's check out date to "0000-00-00".

CUSTOMER COMPLETE

specifies the completion of a customer. Print the total fees for this customer.

Parameters:

I/O Book bookM[] Array of books

I int iBookCnt Number of elements in bookM[]

I char *pszSubCommand Should be BEGIN, ADDRESS, REQUEST or COMPLETE

I char *pzRemainingInput Points to the remaining characters in the input

line (i.e., the characters that following the

subcommand).

I/O Customer *pCustomer The BEGIN subcommand begins a new customer.

Notes:

**************************************************************************/

void processCustomerCommand(Node **ppHead

, char *pszSubCommand, char *pszRemainingInput

, Customer *pCustomer) {

int iScanfCnt;

Transaction transaction;

double *pdCustomerTotalFees;

  

// Determine what to do based on the subCommand

if (strcmp(pszSubCommand, "BEGIN") == 0)

{

// get the Customer Identification Information

// your code

  

iScanfCnt = sscanf(pszRemainingInput, "%s %d %s %s ", pCustomer->szCustomerId, pCustomer->dFeeBalance, pCustomer->szEmailAddr, pCustomer->szFullName);

  

// Check for bad customer identification data

if (iScanfCnt < 4)

exitError(ERR_CUSTOMER_ID_DATA, pszRemainingInput);

   }

else if (strcmp(pszSubCommand, "COMPLETE") == 0)

{

// print the customer's total fees

// your code

printf(" %-10s %8s %10s %8.2f ", "", "", "Total Fees", *pdCustomerTotalFees);

printf("*********************************************************************** ");

*pdCustomerTotalFees = 0;

}

else if (strcmp(pszSubCommand, "ADDRESS") == 0)

{

// get the postal address and print it

// your code

iScanfCnt = sscanf(pszRemainingInput, "%30[^,],%20[^,],%2[^,],%[0-9]", &pCustomer->szStreetAddress

   , &pCustomer->szCity, &pCustomer->szStateCd, &pCustomer->szZipCd);

if (iScanfCnt < 4)

exitError(ERR_CUSTOMER_ADDRESS_DATA, pszRemainingInput);

  

//print the customer

printCustomer(pCustomer);

  

// print the column heading for the transactions

printf(" %-5s %-9s %-10s ", "Trans", "Book", "Date");

  

}

else if (strcmp(pszSubCommand, "TRANS") == 0)

{

  

printf(" ");

  

}

else printf(" *** %s %s ", ERR_CUSTOMER_SUB_COMMAND, pszSubCommand);

}

/********************processBookCommand *****************************

void processBookCommand(Book bookM[], int iBookCnt

, char *pszSubCommand, char *pszRemainingInput)

Purpose:

Processes the subcommands associated with the BOOK command:

BOOK CHANGE szBookId dLateFeePerDay dMaxLateFee

change the Late Fee Per Day and Max Late Fee to the specified values

BOOK SHOW szBookId

requests a display of a particular book. Show all of its information.

Parameters:

I/O Book bookM[] Array of books

I int iBookCnt Number of elements in bookM[]

I char *pszSubCommand Should be CHANGE or SHOW

I char *pzRemainingInput Points to the remaining characters in the input

line (i.e., the characters that following the

subcommand).

Notes:

**************************************************************************/

void processBookCommand(Node **ppHead

, char *pszSubCommand, char *pszRemainingInput) {

  

Book book;

  

int iQuantity; // quantity of Books

int iScanfCnt;

// Determine what to do based on the subCommand

// your code

}

double processTransaction(Node **ppHead, Customer customer, Transaction transation);

And here is the Driver program provided.

And here is the h file provided.

Here us the p4Command.txt

And here is the p4Book.txt

Explanation / Answer

compile the code using a make file

the same file tested with the driver program works ok in the compiler

both the file p4book.txt and

p4command.txt files were read ok

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