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<?php
/*
* $Id: AbstractSAXParser.php,v 1.13 2004/03/20 03:33:06 hlellelid Exp $
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information please see
* <http://phing.info>.
*/
/**
* The abstract SAX parser class.
*
* This class represents a SAX parser. It is a abstract calss that must be
* implemented by the real parser that must extend this class
*
* @author Andreas Aderhold <andi@binarycloud.com>
* @author Hans Lellelid <hans@xmpl.org>
* @copyright © 2001,2002 THYRELL. All rights reserved
* @version $Revision: 1.13 $
* @package phing.parser
*/
abstract class AbstractSAXParser {
/** The AbstractHandler object. */
protected $handler;
/**
* Constructs a SAX parser
*/
function __construct() {}
/**
* Sets options for PHP interal parser. Must be implemented by the parser
* class if it should be used.
*/
abstract function parserSetOption($opt, $val);
/**
* Sets the current element handler object for this parser. Usually this
* is an object using extending "AbstractHandler".
*
* @param AbstractHandler $obj The handler object.
*/
function setHandler( $obj) {
$this->handler = $obj;
}
/**
* Method that gets invoked when the parser runs over a XML start element.
*
* This method is called by PHP's internal parser funcitons and registered
* in the actual parser implementation.
* It gives control to the current active handler object by calling the
* <code>startElement()</code> method.
*
* BECAUSE OF PROBLEMS WITH EXCEPTIONS BUBBLING UP THROUGH xml_parse() THIS
* METHOD WILL CALL Phing::halt(-1) ON EXCEPTION.
*
* @param object the php's internal parser handle
* @param string the open tag name
* @param array the tag's attributes if any
*/
function startElement($parser, $name, $attribs) {
try {
$this->handler->startElement($name, $attribs);
} catch (Exception $e) {
print "[Exception in XML parsing]\n";
print $e;
Phing::halt(-1);
}
}
/**
* Method that gets invoked when the parser runs over a XML close element.
*
* This method is called by PHP's internal parser funcitons and registered
* in the actual parser implementation.
*
* It gives control to the current active handler object by calling the
* <code>endElement()</code> method.
*
* BECAUSE OF PROBLEMS WITH EXCEPTIONS BUBBLING UP THROUGH xml_parse() THIS
* METHOD WILL CALL Phing::halt(-1) ON EXCEPTION.
*
* @param object the php's internal parser handle
* @param string the closing tag name
*/
function endElement($parser, $name) {
try {
$this->handler->endElement($name);
} catch (Exception $e) {
print "[Exception in XML parsing]\n";
print $e;
Phing::halt(-1);
}
}
/**
* Method that gets invoked when the parser runs over CDATA.
*
* This method is called by PHP's internal parser functions and registered
* in the actual parser implementation.
*
* It gives control to the current active handler object by calling the
* <code>characters()</code> method. That processes the given CDATA.
*
* BECAUSE OF PROBLEMS WITH EXCEPTIONS BUBBLING UP THROUGH xml_parse() THIS
* METHOD WILL CALL Phing::halt(-1) ON EXCEPTION.
*
* @param resource $parser php's internal parser handle.
* @param string $data the CDATA
*/
function characters($parser, $data) {
try {
$this->handler->characters($data);
} catch (Exception $e) {
print "[Exception in XML parsing]\n";
print $e;
Phing::halt(-1);
}
}
/**
* Entrypoint for parser. This method needs to be implemented by the
* child classt that utilizes the concrete parser
*/
abstract function parse();
}
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