blob: dcf7058bb5a8ab6dd7ddcc8d5b934204861aed0b (
plain)
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
54
55
56
57
58
59
60
61
62
|
#include <stdio.h>
#define MINLENGTH 80
/* Read as much as possible of a string and return its length. */
int get_line(char s[]) {
int c, i;
for (i = 0; i < MINLENGTH - 1 && (c = getchar()) != EOF; ++i) {
s[i] = c;
}
if (c == '\n') {
s[i] = c;
++i;
}
s[i] = '\0';
return i;
}
int main() {
// longline is used as a boolean that tells us if it's a line worth printing
int longline = 0;
// len is simply a character counter, while c is the character itself.
int len, c;
char buffer[MINLENGTH];
while ((c = getchar()) != EOF) {
buffer[len] = c;
/* When we meet the end of the line, we need to print the rest of the line,
but only if we're already in a long line. Otherwise, reset our state.
*/
if (c == '\n') {
if (longline == 1 && len < MINLENGTH - 1) {
buffer[len + 1] = '\0';
printf("%-s", buffer);
}
len = 0;
longline = 0;
continue;
}
/* When the buffer has filled up, output its contents! */
if (len == MINLENGTH) {
buffer[len + 1] = '\0';
printf("%-s", buffer);
len = 0;
longline = 1;
continue;
}
/* If neither of the above cases are caught, increment our counter and fetch
more data.
*/
++len;
}
return 0;
}
|
