Read From file c - c

Question

I'm working on a project of booking , so the idea of project when the program starts it should read a data from a file called databook and save them on the struct , and everytime i'm adding a book it should add to program
the difficult i found the name has a space between name and nickname so i used scanf but the problem is scanf don't read full line i used scanf("%[^\n]s",) but it doesnt work
the source code below to understund more
#include <stdio.h>
#include <stdlib.h>
#define MAX_ARRAY_SIZE 5
typedef struct Book
{
char BookName[50];
int BookISBN;
int Borrowed;
char BorrowerName[50];
char Field[50];
}Book;
Book book[MAX_ARRAY_SIZE];
void ReadFile(char* fileName);
int main(int argc, char* argv[])
{
char* fileName = "c1.txt";
ReadFile(fileName);
int i = 0;
for (i = 0; i < MAX_ARRAY_SIZE; i++)
{
printf("Book Name is : %s\n", book[i].BookName);
printf("Book ISBN is : %d\n", book[i].BookISBN);
printf("Borrowed is : %d\n", book[i].Borrowed);
printf("Borrower Name is : %s\n", book[i].BorrowerName);
printf("Field is : %s\n", book[i].Field);
printf("\n");
}
exit(EXIT_SUCCESS);
}
void ReadFile(char* fileName)
{
FILE* filePtr = NULL;
int i = 0;
if ((filePtr = fopen(fileName, "r")) == NULL)
{
printf("Error : Unable to open %s for reading\n");
exit(EXIT_FAILURE);
}
while (fscanf(filePtr, "%s%d%d%s%s", &book[i].BookName, &book[i].BookISBN, &book[i].Borrowed,&book[i].BorrowerName,&book[i].Field) != EOF)
{
i++;
}
fclose(filePtr);
}
for databook
Technique Informatique //BookName1
90023 //BookISBN1
1 //(OR O) - means 'Borrowed OR not
Adam Ridge //BorrowerName1 (None in case Not borrowed)
special//(field)
Data Structures //BookName1
23451 //BookISBN1
0 //(OR O) - means 'Borrowed OR not
None //BorrowerName1 (None in case Not borrowed)
Computer Science //(field)
E-commerce Blockchain //BookName1
14678 //BookISBN1
1 //(OR O) - means 'Borrowed OR not
Adam Ridge //BorrowerName1 (None in case Not borrowed)
Business //(field)

Answer 1

Well you should be using fgets for reading string, as other people have already said.
Nevertheless, and to answer you question, here is some advice that might help you:
Book structure contains char arrays (char []) not pointers (char *), so reading into those variables does nor have the & symbol, e.g.:
fscanf(filePtr, "%[^\n]%d\n%d\n%[^\n]%*c%[^\n]%*c", book[i].BookName...) != EOF)
The correct format of the fscanf function for this case is:
fscanf(filePtr, "%[^\n]%d\n%d\n%[^\n]%*c%[^\n]%*c", book[i].BookName, &book[i].BookISBN, &book[i].Borrowed, book[i].BorrowerName, book[i].Field) != EOF)
Where:
a) %[^\n] -> reads a full line
b) %d\n -> reads an int and an end of line
c) [^\n]%*c -> reads a full line and any extra chars. Note, that if you use * in the format string, it suppresses assignment:
%*c = read 1 character, but don't assign it to any variable

Answer 2

As already pointed out by people in comments, you should try to use fgets() for reading file and then sscanf for reading integers from the string. Here is an example:
int ReadFile(char* fileName) {
FILE* filePtr = NULL;
int i = 0;
if ((filePtr = fopen(fileName, "r")) == NULL) {
printf("Error : Unable to open %s for reading\n");
exit(EXIT_FAILURE);
}
char input[100];
char *result;
while ((result = fgets(input, 100, filePtr)) != NULL) {
// Book Name
input[strlen(input) - 1] = '\0'; // Trim trailing \n
strcpy(book[i].BookName, input);
// Book ISBN
result = fgets(input, 100, filePtr);
if (result == NULL) break;
sscanf(input, "%d", &book[i].BookISBN);
// Book Borrowed
result = fgets(input, 100, filePtr);
if (result == NULL) break;
sscanf(input, "%d", &book[i].Borrowed);
// Book Borrower Name
result = fgets(input, 100, filePtr);
input[strlen(input) - 1] = '\0'; // Trim trailing \n
if (result == NULL) break;
strcpy(book[i].BorrowerName, input);
// Book Field
result = fgets(input, 100, filePtr);
input[strlen(input) - 1] = '\0'; // Trim trailing \n
if (result == NULL) break;
strcpy(book[i].Field, input);
i++;
}
fclose(filePtr);
return i;
}
When I run this code on your file, I'm able to see documents being printed:
c-posts : $ gcc booking.c
c-posts : $ ./a.out
Book Name is : Technique Informatique
Book ISBN is : 90023
Borrowed is : 1
Borrower Name is : Adam Ridge
Field is : special
Book Name is : Data Structures
Book ISBN is : 23451
Borrowed is : 0
Borrower Name is : None
Field is : Computer Science
Book Name is : E-commerce Blockchain
Book ISBN is : 14678
Borrowed is : 1
Borrower Name is : Adam Ridge
Field is : Business