<?php
/**********************************************************************
 * Copyright (C) 2006 L'Équipe Wikigraphe
 *
 * 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 2 of the License, or
 * 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, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * See also http://www.fsf.org
 *********************************************************************/

/** 
 * Validates a string by replacing the forbidden characters. 
 * To use before inserting it into the database. 
 * @param string $name
 * @todo allow more characters.
 */
function validate_name($name) {
  $forbidden = "/[^\w\ \.\@\-\?\!]/";
  $replacement = "";
  $name = preg_replace($forbidden, $replacement, $name);
  if (strlen($name) > MAX_STRLEN) {
    $name = substr($name, 0, MAX_STRLEN);
  }
  return $name;
}
?>