/* 行をある桁で折り返す */
int main()
{
int COLS = 30;
int c, col;
char buf[1000];
int i = 0;
col = 0;
while ((c = getchar()) != EOF) {
if (c == '\t')
col = next_tabstop(col);
else
++col;
buf[i++] = c;
if (col == COLS) {
print_to_last_nonblank(buf, i);
putchar('\n');
col = 0;
i = 0;
}
if (c == '\n') {
print_first(buf, i);
col = 0;
i = 0;
}
}
return 0;
}
void entab_list(int *tabstops)
{
int c, buf, col = 0;
while((c = getchar()) != EOF) {
if(c == ' ') {
if(*(tabstops = next_tabstop(tabstops, col)) == -1) {
/* No more tabstops; ignore entabbing */
putchar(c);
continue;
}
buf = 0;
do {
buf++, col++;
} while(col < *tabstops && (c = getchar()) == ' ');
if(col == *tabstops) {
putchar('\t');
}
else if(c != '\t') {
while(buf-- > 0) {
putchar(' ');
}
}
}
if(c != ' ') {
putchar(c);
col++;
if(c == '\n') {
col = 0;
}
else if(c == '\t') {
if(*(tabstops = next_tabstop(tabstops, col)) != -1) {
col = *tabstops;
}
}
}
}
}
