<?php

/**
 * Story Template filter interface
 *
 * Rewrite elements in a story template
 *
 */
abstract class AnModelStoryTemplateFilterAbstract extends KObject
{
	/**
	 * Parse a text based on the data provided by a story object
	 * @return 
	 * @param $text Object
	 * @param $story AnModelStory
	 */
	abstract public function parse(&$text, $tokens, $story);
	
	/**
	 * Replace a token with a value within a text
	 * @param $text string
	 * @param $token string
	 * @param $value string
	 */
	protected function _replace(&$text, $token, $value)
	{
		$text = str_replace('${'.$token.'}', (string) $value, $text);
	}
}