#include <stdio.h>
void
escape(char *s, char *t)
{
	int j = 0;
	while (*s) {
		switch (*s) {
		case '\n':
			t[j++] = '\\';
			t[j++] = 'n';
			break;
		case '\t':
			t[j++] = '\\';
			t[j++] = 't';
			break;
		default:
			t[j++] = *s;
			break;
		}
		s++;
	}
	t[j] = '\0';
}
int
main(void)
{
	char s[]    = "Apples:\t\t5\nBananas:\t7\n";
	char t[100] = {0};
	char u[100] = {0};
	escape(s, t);
	printf("%s\n\n%s\n", s, t);
}