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<?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)
{
// create local variables from the options array (text,
// href, type)
extract($options);
// find the rightmost dot and determine the filename
// extension.
$pos = strrpos($href, '.');
$ext = strtolower(substr($href, $pos + 1));
$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=\"$href\" alt=\"$text\" />";
} 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)
$text = $this->textEncode($text);
$css = $this->formatConf(' class="%s"', "css_$type");
$output = "<a$css href=\"$href\"";
if ($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);
$output .= " onclick=\"window.open(this.href, '$target');";
$output .= " return false;\"";
}
// finish up output
$output .= ">$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;
}
}
?>
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