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WikiExt-Base.php
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WikiExt-Base.php
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<?php
/**
* Contains base class for Extensions
*
* @package parser
* @version 0.2
* @license http://download.smfwiki.net/license.php SMF Wiki license
* @since 0.2
*/
/**
* Wiki Extension class. This handles calling extensions and keeps log of registered extensions
*/
class WikiExtension
{
/**
*
*/
static protected $variables = array();
/**
*
*/
static protected $functions = array();
/**
*
*/
static protected $xmlTags = array();
/**
*
*/
static protected $magicwords = array();
/**
*
*/
static protected $specialPages = array();
/**
* Checks if variable exists
* @param string $variable
* @return boolean True if variable
*/
static function variableExists($variable)
{
$variable = strtolower($variable);
return isset(WikiExtension::$variables[$variable]);
}
/**
* Returns variable from extension(s)
* @param string $variable
* @return mixed String if variable exists. False if not
*/
static function getVariable($variable)
{
$variable = strtolower($variable);
if (!isset(WikiExtension::$variables[$variable]))
return false;
return WikiExtension::$variables[$variable];
}
/**
*
* @param <type> $variable
* @param <type> $callback
*/
static function addVariable($variable, $callback)
{
WikiExtension::$variables[$variable] = array('callback' => $callback);
}
/**
* Check if function exists
*
* @param string $function
* @return boolean True if function exists
*/
static function isFunction($function)
{
$function = strtolower($function);
return isset(WikiExtension::$functions[$function]);
}
/**
*
*
* @param string $variable
* @return mixed String if variable exists. False if not
*/
static function getFunction($function)
{
$function = strtolower($function);
if (!isset(WikiExtension::$functions[$function]))
return false;
return WikiExtension::$functions[$function];
}
/**
*
* @param <type> $variable
* @param <type> $callback
*/
static function addFunction($function, $callback)
{
WikiExtension::$functions[$function] = array('callback' => $callback);
}
/**
* Check if XML Tag exists
*
* @param string $tag
* @return boolean True if XML Tag exists
*/
static function isXMLTag($tag)
{
$tag = strtolower($tag);
return isset(WikiExtension::$xmlTags[$tag]);
}
/**
*
*
* @param string $variable
* @return mixed String if variable exists. False if not
*/
static function getXMLTag($tag)
{
$tag = strtolower($tag);
if (!isset(WikiExtension::$xmlTags[$tag]))
return false;
return WikiExtension::$xmlTags[$tag];
}
/**
*
* @param <type> $variable
* @param <type> $callback
*/
static function addXMLTag($tag, $class)
{
if (!is_subclass_of($class, 'Wiki_Element_XMLTag'))
trigger_error('XMLTag must be subclass of Wiki_Element_XMLTag', E_USER_ERROR);
WikiExtension::$xmlTags[$tag] = array('class' => $class);
}
/**
* Check if Magic word exists
*
* @param string $function
* @return boolean True if function exists
*/
static function isMagicword($magicword)
{
global $txt;
$magicword = strtolower($magicword);
return isset(WikiExtension::$magicwords[$magicword]) || isset($txt['wiki_' . $magicword]);
}
/**
* Returns variable from extension(s)
* @param string $variable
* @return mixed String if variable exists. False if not
*/
static function getMagicword($magicword)
{
global $txt;
$magicword = strtolower($magicword);
if (!isset(WikiExtension::$magicwords[$magicword]))
return isset($txt['wiki_' . $magicword]) ? array('txt' => $txt['wiki_' . $magicword]) : false;
return WikiExtension::$magicwords[$magicword];
}
/**
*
* @param <type> $variable
* @param <type> $callback
*/
static function addMagicword($magicword, $callback)
{
$magicword = strtolower($magicword);
WikiExtension::$magicwords[$magicword] = array('callback' => $callback);
}
/**
* Returns variable from extension(s)
* @param string $variable
* @return mixed String if variable exists. False if not
*/
static function getSpecialPage($specialpage)
{
if (!isset(WikiExtension::$specialPages[$specialpage]))
return false;
return WikiExtension::$specialPages[$specialpage];
}
/**
*
* @param <type> $specialpage
* @param <type> $callback
*/
static function registerSpecialPage($specialpage, $title, $file, $callback)
{
WikiExtension::$specialPages[$specialpage] = array('title' => $title, 'file' => $file, 'callback' => $callback);
}
/**
*
* @param string $name class name of extension
*/
static function addExtension($name)
{
call_user_func(array($name, 'registerExtension'));
}
}
/**
* Wiki Extension base class, all extensions should extend this
*/
abstract class WikiExtensionBase
{
abstract static function registerExtension();
}
/**
*
*/
class WikiExtension_Core extends WikiExtensionBase
{
/**
*
*/
static function registerExtension()
{
WikiExtension::addVariable('wikiversion', array('WikiExtension_Core', 'variable_WikiVersion'));
WikiExtension::addVariable('displaytitle', array('WikiExtension_Core', 'variable_DisplayTitle'));
WikiExtension::addFunction('if', array('WikiExtension_Core', 'function_if'));
WikiExtension::addMagicword('index', array('WikiExtension_Core', 'magicword_index'));
WikiExtension::addMagicword('noindex', array('WikiExtension_Core', 'magicword_noindex'));
//global $sourcedir;
//require_once($sourcedir . '/Wiki/Element/Test.php');
WikiExtension::addXMLTag('test', 'Wiki_Element_Test');
}
/**
*
* @global <type> $wiki_version
* @param Wiki_Parser $wikiparser
* @param <type> $parameters
* @return <type>
*/
static function variable_WikiVersion($wikiparser, $parameters)
{
global $wiki_version;
return $wiki_version;
}
/**
*
* @param Wiki_Parser $wikiparser
* @param <type> $parameters
* @return <type>
*/
static function variable_DisplayTitle(Wiki_Parser $wikiparser, $parameters)
{
if (empty($parameters))
return $wikiparser->page->title;
else
$wikiparser->page->title = Wiki_Parser_Core::toText(array_shift($parameters));
return true;
}
/**
*
* @param Wiki_Parser $wikiparser
* @param <type> $parameters
*/
static function function_if($wikiparser, $parameters)
{
$result = Wiki_Parser_Core::toBoolean($parameters[0]);
$true_cond = $parameters[1];
if (!empty($parameters[2]))
$false_cond = $parameters[2];
$wikiparser->throwContentArray($result ? $true_cond : (isset($false_cond) ? $false_cond : array()));
}
/**
*
*/
static function magicword_index(Wiki_Parser $wikiparser)
{
$wikiparser->pageOptions['index'] = true;
}
/**
*
*/
static function magicword_noindex(Wiki_Parser $wikiparser)
{
$wikiparser->pageOptions['index'] = true;
}
}
?>