1 5dc21454 2023-07-14 jrmu /*
 2 5dc21454 2023-07-14 jrmu 1-9. Write a program to copy its input to its output, replacing each string of one or more blanks by a single blank.
 3 5dc21454 2023-07-14 jrmu 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.
 4 5dc21454 2023-07-14 jrmu */
 5 5dc21454 2023-07-14 jrmu 
 6 5dc21454 2023-07-14 jrmu #include <stdio.h>
 7 5dc21454 2023-07-14 jrmu #define FALSE 0
 8 5dc21454 2023-07-14 jrmu #define TRUE 1
 9 5dc21454 2023-07-14 jrmu 
10 5dc21454 2023-07-14 jrmu main()
11 5dc21454 2023-07-14 jrmu {
12 5dc21454 2023-07-14 jrmu 	int c;
13 5dc21454 2023-07-14 jrmu 	int needsSpace;
14 5dc21454 2023-07-14 jrmu 
15 5dc21454 2023-07-14 jrmu 	needsSpace = FALSE;
16 5dc21454 2023-07-14 jrmu 
17 5dc21454 2023-07-14 jrmu 	while ((c = getchar()) != EOF) {
18 5dc21454 2023-07-14 jrmu 		if (c == ' ') {
19 5dc21454 2023-07-14 jrmu 			needsSpace = TRUE;
20 5dc21454 2023-07-14 jrmu 		} else {
21 5dc21454 2023-07-14 jrmu 			if (needsSpace)
22 5dc21454 2023-07-14 jrmu 				printf(" ");
23 5dc21454 2023-07-14 jrmu 			printf("%c", c);
24 5dc21454 2023-07-14 jrmu 			needsSpace = FALSE;
25 5dc21454 2023-07-14 jrmu 		}
26 5dc21454 2023-07-14 jrmu 	}
27 5dc21454 2023-07-14 jrmu }