class.ilXML2FO.php

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<?php
/*
    +-----------------------------------------------------------------------------+
    | ILIAS open source                                                           |
    +-----------------------------------------------------------------------------+
    | Copyright (c) 1998-2001 ILIAS open source, University of Cologne            |
    |                                                                             |
    | 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 (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, write to the Free Software                 |
    | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
    +-----------------------------------------------------------------------------+
*/


class ilXML2FO
{
    public $xslt = null;
    public $xml = null;
    public $fo_string = null;

    public $xslt_handler = null;
    public $xslt_args = null;
    public $xslt_params = null;

    public function setXMLString($a_xml)
    {
        $this->xml = $a_xml;
    }
    public function getXMLString()
    {
        return $this->xml;
    }
    public function setXSLTLocation($xslt_location)
    {
        $this->xslt = $xslt_location;
    }
    public function getXSLTLocation()
    {
        return $this->xslt;
    }
    public function getFOString()
    {
        return $this->fo_string;
    }
    public function setXSLTParams($params)
    {
        $this->xslt_params = $params;
    }
    public function getXSLTParams()
    {
        return $this->xslt_params;
    }
    public function transform()
    {
        global $ilLog;

        $this->__init();

        $this->fo_string = @xslt_process(
            $this->xslt_handler,
            "arg:/_xml",
            "arg:/_xsl",
            null,
            $this->xslt_args,
            $this->xslt_params
        );


        if (strlen($error_msg = xslt_error($this->xslt_handler))) {
            $ilLog->write("Error generating pdf: " . $error_msg);
            return false;
        }

        xslt_free($this->xslt_handler);

        return true;
    }

    // Private
    public function __init()
    {

        #domxml_open_mem($this->getXMLString(), DOMXML_LOAD_VALIDATING, $error);
        #if($error)
        #{
        #       var_dump("<pre>","XML ERROR: ".$error,htmlentities($this->getXMLString()),"<pre>");
        #}

        $this->xslt_handler = xslt_create();
        $this->xslt_args = array('/_xml' => $this->getXMLString(),
                                 '/_xsl' => file_get_contents($this->getXSLTLocation()));

        return true;
    }
}