<?php

// vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4:

/**

 * Url rule end renderer for Xhtml

 *

 * PHP versions 4 and 5

 *

 * @category   Text

 * @package    Text_Wiki

 * @author     Paul M. Jones <pmjones@php.net>

 * @license    http://www.gnu.org/copyleft/lesser.html  LGPL License 2.1

 * @version    CVS: $Id: Url.php,v 1.13 2006/02/10 23:07:03 toggg Exp $

 * @link       http://pear.php.net/package/Text_Wiki

 */

/**

 * This class renders URL links in XHTML.

 *

 * @category   Text

 * @package    Text_Wiki

 * @author     Paul M. Jones <pmjones@php.net>

 * @license    http://www.gnu.org/copyleft/lesser.html  LGPL License 2.1

 * @version    Release: @package_version@

 * @link       http://pear.php.net/package/Text_Wiki

 */

class Text_Wiki_Render_Xhtml_Url extends Text_Wiki_Render {

    var $conf = array(

        'target' => '_blank',

        'images' => true,

        'img_ext' => array('jpg', 'jpeg', 'gif', 'png'),

        'css_inline' => null,

        'css_footnote' => null,

        'css_descr' => null,

        'css_img' => null

    );

    /**

    *

    * Renders a token into text matching the requested format.

    *

    * @access public

    *

    * @param array $options The "options" portion of the token (second

    * element).

    *

    * @return string The text rendered from the token options.

    *

    */

    function token($options)

    {

      global $email;

        // create local variables from the options array (text,

        // href, type)

        extract($options);

        $quote = '"';

        // find the rightmost dot and determine the filename

        // extension.

        $pos = strrpos($href, '.');

        $ext = strtolower(substr($href, $pos + 1));

        if(substr($href, 0, 7) == 'mailto:')

        {

          $a = substr($href, 7);

          $code = $email->encryptEmail($a, '', '', $text);

          return $code;

        }

        $href = $this->textEncode($href);

        // does the filename extension indicate an image file?

        if ($this->getConf('images') &&

            in_array($ext, $this->getConf('img_ext', array()))) {

            // create alt text for the image

            if (! isset($text) || $text == '') {

                $text = basename($href);

                $text = $this->textEncode($text);

            }

            // generate an image tag

            $css = $this->formatConf(' class="%s"', 'css_img');

            $output = "<img$css src={$quote}$href{$quote} alt={$quote}$text{$quote} />";

        } else {

            // should we build a target clause?

            if ($href{0} == '#' ||

            	strtolower(substr($href, 0, 7)) == 'mailto:') {

            	// targets not allowed for on-page anchors

            	// and mailto: links.

                $target = '';

            } else {

				// allow targets on non-anchor non-mailto links

                $target = $this->getConf('target');

            }

            // generate a regular link (not an image)

            $css = $this->formatConf(' class="%s"', "css_$type");

            $output = "<a$css href={$quote}$href{$quote}";

            if ($target) {

                // use a "popup" window.  this is XHTML compliant, suggested by

                // Aaron Kalin.  uses the $target as the new window name.

                $target = $this->textEncode($target);

                $output .= " onclick={$quote}window.open(this.href, '$target');";

                $output .= " return false;{$quote}";

            }

            // finish up output

            $output .= " rel=".'"'."nofollow".'"'.">$text</a>";

            // make numbered references look like footnotes when no

            // CSS class specified, make them superscript by default

            if ($type == 'footnote' && ! $css) {

                $output = '<sup>' . $output . '</sup>';

            }

        }

        return $output;

    }

}

?>