1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
#include <stdio.h>
#define MAXLEN 1000
#define TRUE 1
#define FALSE 0
int getlineraw(char s[], int size);
void trim(char to[], char from[], int size);
/* removes trailing blanks and tabs from input */
int main(int argc, char *argv[]) {
int size;
char s[MAXLEN], trimmed[MAXLEN];
while ((size = getlineraw(s, MAXLEN)) > 0) {
trim(trimmed, s, size);
printf("%s\n", trimmed);
}
if (size == -1) {
printf("exceeded max input size: %d\n", MAXLEN);
return 1;
}
return 0;
}
int getlineraw(char s[], int size) {
int c, i;
for (i = 0; i < size - 1 && (c = getchar()) != EOF && c != '\n'; i++)
s[i] = c;
return c != '\n' && c != EOF ? -1 : i;
}
void trim(char to[], char from[], int size) {
int i, c, trimmed;
trimmed = FALSE;
for (i = size - 1; i >= 0; i--) {
if (!trimmed) {
c = from[i];
if (c != ' ' && c != '\t') {
to[i] = c;
trimmed = TRUE;
}
} else {
to[i] = from[i];
}
}
}
|
