/* str/cut.c - Cut characters from the left or right of a string.
* Copyright (C) 2001,2005 Bruce Guenter <bruce@untroubled.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <string.h>
#include "str.h"
/** Cut \c count bytes from the right (end) of the string */
void str_rcut(str* s, unsigned count)
{
unsigned newlen;
newlen = (s->len < count) ? 0 : s->len - count;
str_truncate(s, newlen);
}
/** Cut \c count bytes from the left (front) of the string */
void str_lcut(str* s, unsigned count)
{
unsigned newlen;
newlen = (s->len < count) ? 0 : s->len - count;
if (count > s->len)
newlen = 0;
else {
newlen = s->len - count;
memmove(s->s, s->s+count, newlen);
}
str_truncate(s, newlen);
}