/* substring.c -- extract substring.
   $Id: substring.c,v 1.5 2007/07/01 21:20:31 karl Exp $

   Copyright (C) 1999, 2004, 2007 Free Software Foundation, Inc.

   This program 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 of the License, or
   (at your option) any later version.

   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.  */

#include "system.h"

char *
substring (const char *start, const char *end)
{
  char *result = xmalloc (end - start + 1);
  char *scan_result = result;
  const char *scan = start;

  while (scan < end)
    *scan_result++ = *scan++;

  *scan_result = 0;
  return result;
}