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#include <stdio.h>
#define MAXLINELENGTH 9001
/* Write a program to remove trailing blanks and tabs from each line of input,
and to delete entirely blank lines. */
int get_line(char s[], int lim) {
int c, i;
for (i = 0; i < lim - 1 && (c = getchar()) != EOF && c != '\n'; ++i) {
s[i] = c;
}
if (c == '\n') {
s[i] = c;
++i;
}
s[i + 1] = '\0';
return i;
}
int main(void) {
char buffer[MAXLINELENGTH];
int c, i, len;
/* Make sure every line is gone over */
while (len = get_line(buffer, MAXLINELENGTH)) {
/* An empty for statement, simply to change the i variable. */
for (i = len - 2; (i > 0) && (buffer[i] == ' ') || (buffer[i] == '\t'); --i);
/* We've reached the end of the line's actual content. Terminate the line. */
if (i >= 1) {
buffer[i + 1] = '\n';
buffer[i + 2] = '\0';
printf("%s", buffer);
}
}
}
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