<?php
// vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4:
/**
 * Format class for the Xhtml rendering
 *
 * 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: $Id$
 * @link       http://pear.php.net/package/Text_Wiki
 */

/**
 * Format class for the Xhtml rendering
 *
 * @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 extends Text_Wiki_Render {

    var $conf = array(
    	'translate' => HTML_ENTITIES,
    	'quotes'    => ENT_COMPAT,
    	'charset'   => 'ISO-8859-1'
    	//'charset'   => 'UTF-8' //Broken htmlentities doesn't work with this even though it claims to support it.
    );

    function pre()
    {
        $this->wiki->source = $this->textEncode($this->wiki->source);
    }

    function post()
    {
        return;
    }

    /**
    * Method to set a config key
    *
    * @access public
    * @param string $text the text to render
    * @return rendered text
    *
    */

    function setConf($key, $value)
    {
        $this->conf[$key] = $value;
    }

    /**
    * Method to get the value at the specified config key
    *
    * @access public
    * @param string $text the text to render
    * @return rendered text
    *
    */

    function getConf($key, $default)
    {
        if (isset($this->conf[$key])) {
            return $this->conf[$key];
        } else {
            return $default;
        }
    }


    /**
    * Method to render text
    *
    * @access public
    * @param string $text the text to render
    * @return rendered text
    *
    */

    function textEncode($text)
    {
        // attempt to translate HTML entities in the source.
        // get the config options.
        $type = $this->getConf('translate', HTML_ENTITIES);
        $quotes = $this->getConf('quotes', ENT_COMPAT);
        $charset = $this->getConf('charset', 'ISO-8859-1');

        // have to check null and false because HTML_ENTITIES is a zero
        if ($type === HTML_ENTITIES) {
			// keep a copy of the translated version of the delimiter
			// so we can convert it back.
			$new_delim = htmlentities($this->wiki->delim, $quotes, $charset);

			// convert the entities.  we silence the call here so that
			// errors about charsets don't pop up, per counsel from
			// Jan at Horde.  (http://pear.php.net/bugs/bug.php?id=4474)
			$text = @htmlentities(
				$text,
				$quotes,
				$charset
			);

			// re-convert the delimiter
			$text = str_replace(
				$new_delim, $this->wiki->delim, $text
			);

		} elseif ($type === HTML_SPECIALCHARS) {

			// keep a copy of the translated version of the delimiter
			// so we can convert it back.
			$new_delim = htmlspecialchars($this->wiki->delim, $quotes,
			    $charset);

			// convert the entities.  we silence the call here so that
			// errors about charsets don't pop up, per counsel from
			// Jan at Horde.  (http://pear.php.net/bugs/bug.php?id=4474)
			$text = @htmlspecialchars(
				$text,
				$quotes,
				$charset
			);

			// re-convert the delimiter
			$text = str_replace(
				$new_delim, $this->wiki->delim, $text
			);
		}
        return $text;
    }
}
?>
