CODEWITHSUNDEEP
cfgets
user14493962
user14493962

Reputation:

How to print the output that is relevant to the pin code?

In this code, I am trying to print the data that is relevant to the pin code. It means if a user enters the pin code, the data of that pin code should be printed. Even if I print the data outside of the loop, read pin code from another file, it gives me the another file 2000 I tried a lot but failed.

Data in the file

Name,ID,Pin,Amount,Phone
Bilal Khan,1111111111111,1122,1000,1122334
Ali Ahmed,2222222222222,2233,2000,66778899

Given output

1000
2000

Expected output

2000
Relevant to the Pin Code.

Code

#include <stdio.h>  
#include <string.h>
#include <stdlib.h>
#define STRING_LEN 200

int main(){  
  FILE *fp1 = fopen("file.csv", "r"); 
  char string[STRING_LEN];
  char * line = NULL, *pinFound = NULL, *wordOne = NULL, *wordTwo = NULL, *wordThree = NULL, *wordFour = NULL, *wordFive = NULL;  

  while(fgets(string, STRING_LEN, fp1)){
    line = strtok(string, "\n");
    pinFound = strstr(line, "2233");
    wordOne = strtok(line, ",");
    wordTwo = strtok(NULL, ",");
    wordThree = strtok(NULL, ",");
    wordFour = strtok(NULL, ",");
    wordFive = strtok(NULL, ",");
    if(pinFound)
      printf("%s\n", wordFour);
  }
}

Upvotes: 0

Views: 81

Answers (1)

yflelion
yflelion

Reputation: 1746

You have this output because strstr find 2233 in the two lines. Bilal Khan,1111111111111,1122,1000,1122334 contains 2233. For this example you can replace pinFound = strstr(line, "2233"); by pinFound = strstr(line, ",2233,"); for test purpose, but the correct solution would be to use something like regexp.

Upvotes: 1

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