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<?php
/**
* An Event Stack for inter-program communication, particularly for parsing
*
* phpDocumentor :: automatic documentation generator
*
* PHP versions 4 and 5
*
* Copyright (c) 2000-2006 Joshua Eichorn
*
* LICENSE:
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* @package phpDocumentor
* @author Joshua Eichorn <jeichorn@phpdoc.org>
* @copyright 2000-2006 Joshua Eichorn
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @version CVS: $Id: EventStack.inc,v 1.3 2006/04/30 22:18:13 cellog Exp $
* @filesource
* @link http://www.phpdoc.org
* @link http://pear.php.net/PhpDocumentor
* @since 0.1
*/
/**
* An event Stack
*
* @author Joshua Eichorn <jeichorn@phpdoc.org>
* @version $Id: EventStack.inc,v 1.3 2006/04/30 22:18:13 cellog Exp $
* @package phpDocumentor
*/
class EventStack
{
/**
* The stack
* @var array
*/
var $stack = array(PARSER_EVENT_NOEVENTS);
/**
* The number of events in the stack
* @var integer
*/
var $num = 0;
/**
* Push an event onto the stack
*
* @param int $event All events must be constants
*/
function pushEvent($event)
{
$this->num = array_push($this->stack,$event) - 1;
}
/**
* Pop an event from the stack
*
* @return int An event
*/
function popEvent()
{
$this->num--;
return array_pop($this->stack);
}
/**
* Get the current event
*
* @return int An event
*/
function getEvent()
{
return $this->stack[$this->num];
}
}
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