/* This file is part of Eclat.
Copyright (C) 2012-2023 Sergey Poznyakoff.
Eclat is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
Eclat is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Eclat. If not, see . */
/* This program filters out trailing whitespace from the input. */
#include
#include
int
main()
{
char buf[512];
size_t lev = 0;
int c;
while ((c = getchar()) != EOF) {
if (c == ' ' || c == '\t') {
assert(lev < sizeof(buf));
buf[lev++] = c;
continue;
} else if (c == '\n')
lev = 0;
else if (lev) {
fwrite(buf, lev, 1, stdout);
lev = 0;
}
putchar(c);
}
assert(!ferror(stdout));
return 0;
}