Question

C Language program problem.

Suppose that I want to create a program by using command line. User will type a name of file such as "test.data" to access the content of the file.

Program should scan whole file and create a list with 30 position .

You should show the two situation, one is for when scanned space, the other one is when it scanned new line.

Then the other task is printing them out.

test data K 1 1 0llie 2 John 3 Julie 4 Joe 5 Mary 6 Sue 7 Jane 2 apple 3 oranger 2 apple 1 apple 3 oranger 3 pear 2 oranger 2 oranger 3 apple 9 Fred 10 Bill pear

You see there are spaces and next lines in the file which program will scan.

I want to see how to fetch the correct elements when they are divided by space.

Also, I want to see how to fetch the correct elements when they are divided by next line.

Answer 1

HERE FSCANF WILL READ THE FILE WORD BY WORD SEPERATED BY THE SPACE.

IT CONSIDERS THE NEW LINE ALSO AS A SPACE.

HENCE WE DO NOT HAVE TO WORRY ABOUT THE NEWLINE AND THE SPACE.

CODE::

#include <stdio.h>

#include <stdlib.h>

int main ()

{

                //required variables

                char filename[20],word[50],*list[30]={""};

                int i=0;

                FILE *file ;

                printf("Enter file name :");

                scanf("%s",filename);

                //creating the file pointer

                file = fopen (filename, "r");

                //loop to read word after the space

                while(fscanf(file, "%s",word)==1)

                {

                                //printing current word

                                printf("Current word :: \"%s\"\n",word);

                                //adding word to list

                                list[i++]=word;

                                if(i==30)               break;

                                //end of loop

                }

                //printing report

                printf("\nData copied to list successfully!");

                //closing the file pointer

                fclose(file);

                //exiting funciton with returning 0

                return(0);

}

OUTPUT::