/**
* Returns a list of all defined frog tags. The list is cached in the
* private static member variable $tagList.
*/
public static function get()
{
try {
if (!isset(self::$tagList)) {
self::set_tag_list();
}
} catch (Exception $e) {
$controller = new FrogTagsController();
$controller->error_page('Fatal Error', $e->getMessage());
}
return self::$tagList;
}
/**
* Runs the preprocessor. The preprocessor has two assignments.
*
* First it replaces empty tags that correspond to the pattern
* <f:name ... /> with <f:name ...></f:name>.
*
* Secondly it marks top-level tags with sign '@' before the tag's name.
* Top-level tags are tags that are not surrounded by other tags. As the
* tag parser will only parse marked tags it will only parse top-level
* tags.
*
* The content of the top-level tags can afterwards be parsed inside of the
* tag definition using the method 'expand' of class FrogTags.
*/
public function run($string)
{
try {
// replace empty tags
$string = preg_replace("|<f:(\\w+?)([^<>]*)/>|U", "<f:\\1\\2></f:\\1>", $string);
// replace nested tags (e. g. <f:children:each> with <f:children><f:each>)
$string = preg_replace_callback("|<(/?)f:([:\\w]+?)([^<>]*)>|U", array($this, 'replace_nested_tag'), $string);
// mark top-level tags
$this->parentTags = array();
$string = preg_replace_callback("|<(/?)f:(\\w+?)([^<>]*)>|U", array($this, 'process_tag'), $string);
} catch (Exception $e) {
$controller = new FrogTagsController();
$controller->error_page('Fatal Parsing Error', $e->getMessage());
}
return $string;
}
