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<?php
/**
*
* Base rendering class for parsed and tokenized text.
*
* @category Text
*
* @package Text_Wiki
*
* @author Paul M. Jones <pmjones@php.net>
*
* @license LGPL
*
* @version $Id: Render.php,v 1.5 2005/02/23 17:38:29 pmjones Exp $
*
*/
/**
*
* Base rendering class for parsed and tokenized text.
*
* @category Text
*
* @package Text_Wiki
*
* @author Paul M. Jones <pmjones@php.net>
*
* @license LGPL
*
*/
class Text_Wiki_Render {
/**
*
* Configuration options for this render rule.
*
* @access public
*
* @var string
*
*/
var $conf = array();
/**
*
* The name of this rule's format.
*
* @access public
*
* @var string
*
*/
var $format = null;
/**
*
* The name of this rule's token array elements.
*
* @access public
*
* @var string
*
*/
var $rule = null;
/**
*
* A reference to the calling Text_Wiki object.
*
* This is needed so that each rule has access to the same source
* text, token set, URLs, interwiki maps, page names, etc.
*
* @access public
*
* @var object
*/
var $wiki = null;
/**
*
* Constructor for this render format or rule.
*
* @access public
*
* @param object &$obj The calling "parent" Text_Wiki object.
*
*/
function Text_Wiki_Render(&$obj)
{
// keep a reference to the calling Text_Wiki object
$this->wiki =& $obj;
// get the config-key-name for this object,
// strip the Text_Wiki_Render_ part
// 01234567890123456
$tmp = get_class($this);
$tmp = substr($tmp, 17);
// split into pieces at the _ mark.
// first part is format, second part is rule.
$part = explode('_', $tmp);
$this->format = isset($part[0]) ? ucwords(strtolower($part[0])) : null;
$this->rule = isset($part[1]) ? ucwords(strtolower($part[1])) : null;
// is there a format but no rule?
// then this is the "main" render object, with
// pre() and post() methods.
if ($this->format && ! $this->rule &&
isset($this->wiki->formatConf[$this->format]) &&
is_array($this->wiki->formatConf[$this->format])) {
// this is a format render object
$this->conf = array_merge(
$this->conf,
$this->wiki->formatConf[$this->format]
);
}
// is there a format and a rule?
if ($this->format && $this->rule &&
isset($this->wiki->renderConf[$this->format][$this->rule]) &&
is_array($this->wiki->renderConf[$this->format][$this->rule])) {
// this is a rule render object
$this->conf = array_merge(
$this->conf,
$this->wiki->renderConf[$this->format][$this->rule]
);
}
}
/**
*
* Simple method to safely get configuration key values.
*
* @access public
*
* @param string $key The configuration key.
*
* @param mixed $default If the key does not exist, return this value
* instead.
*
* @return mixed The configuration key value (if it exists) or the
* default value (if not).
*
*/
function getConf($key, $default = null)
{
if (isset($this->conf[$key])) {
return $this->conf[$key];
} else {
return $default;
}
}
/**
*
* Simple method to wrap a configuration in an sprintf() format.
*
* @access public
*
* @param string $key The configuration key.
*
* @param string $format The sprintf() format string.
*
* @return mixed The formatted configuration key value (if it exists)
* or null (if it does not).
*
*/
function formatConf($format, $key)
{
if (isset($this->conf[$key])) {
return sprintf($format, $this->conf[$key]);
} else {
return null;
}
}
}
?>
|
