1-10.c

/* K&R Exercise 1-10. Write a program to copy its input to its output,
 * replacing each tab by \t, each backspace by \b, and each backslash by \\.
 * This makes tabs and backspaces visible in an unambiguous way */

#include <stdio.h>

main()
{
	int c;
	while( (c = getchar()) != EOF ){
		if(c == '\t') {
			putchar('\\');
			putchar('t');
		} else if(c == '\b') {
			putchar('\\');
			putchar('b');
		} else if(c == '\\') {
			putchar('\\');
			putchar('\\');
		} else {
			putchar(c);
		}
	}
}