ENTAB

#include <stdio.h>
#include <stdlib.h>

#define TAB 8

void entab(char *args);
int tab_count(char *args, short i);

int main(void)
{
        char str[64]= "dsadsadsa         dsadasdsadsa";  (9 spaces between words)   //Input
        // Output: dsadsadsa\t dsadasdsadsa

        entab(str);
        return 0;
}

void entab(char *args)
{
        short i;

        for(i = 0; args[i]; i++) {
    if(args[i] == ' ' && tab_count(args, i)) {
            putchar('\\');
            putchar('t');
            i += (TAB - 1);
    } else
            putchar(args[i]);
        }
}

int tab_count(char *args, short i)
{
        short count, j;

        for(j = count = 0; args[i] && j < TAB; j++, i++) {
    if(args[i] == ' ')
            count++;
    else
            return 0;
        }

        return (count == TAB) ? 1 : 0;
}