Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question is expanding on previous written code bellow(program written in C).

 

(4) Using a loop, extend the program to handle multiple lines of input. Continue until the user enters q to quit.

Ex:

Enter input string: Jill, Allen
First word: Jill
Second word: Allen
 
Enter input string: Golden , Monkey
First word: Golden
Second word: Monkey
 
Enter input string: Washington, DC
First word: Washington
Second word: DC
 
Enter input string:
q
 
 

Current program to expanded on:

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

#define MAX_LIMIT 50

//Function definition
int Commacheck(char *input)

{

    int flag = 0;

    for(int i = 0; i < strlen(input); i++)

    {
        //if comma is present in the input entered by user, update the fag to 1.

        if(input[i] == ',')

        {

            flag = 1;

            break;

        }

    }

    return flag;

}
//Main function
int main(void)

    {
        //varaiable initialization

        char input[MAX_LIMIT];

        char *word[2];

        char delimiter[] = ", ";

        printf("\n");
        

        //get the input string from the user
        printf("Enter input string: ");

        fgets(input, MAX_LIMIT, stdin);
            
        size_t ln = strlen(input) - 1;
            
        
        //if no comma in the string entered by user

        if(Commacheck(input) == 0)
                    
        {

            printf("No comma in string.\n\n");
        }          
        //When comma is present in the input string
         
        else
            
        {
                    
            char *ptr = strtok(input, delimiter);
                
            int count = 0;
                    
            while(ptr != NULL)
                    
            {

                word[count++] = ptr;
                        
                ptr = strtok(NULL, delimiter);
            }
            //print the first and second word of strings
        printf("String 1: %s\n", word[0]);
                
        printf("String 2: %s\n\n", word[1]);

        

    }
    return 0;

}

 
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