Replacement for truncate method tracker_item_id=28795

gistfile1.txt

	/**
	* Method to truncate introtext 
	* 
	* The goal is to get the proper length plain text string with as much of 
	* the html intact as possible with all tags properly closed.
	* 
	* @param string   $html       The content of the introtext to be truncated
	* @param integer  $maxLength  The maximum number of charactes to render
	* 
	* @return  string  The truncated string
	*/
	public static function truncate($html, $maxLength = 0)
	{
		$baseLength = strlen($html);
		$diffLength = 0;

		// First get the plain text string. This is the rendered text we want to end up with.
		$ptString = JHtml::_('string.truncate', $html, $maxLength, $noSplit = true, $allowHtml = false);

		for ($maxLength; $maxLength < $baseLength;)
		{
			// Now get the string if we allow html.
			$htmlString = JHtml::_('string.truncate', $html, $maxLength, $noSplit = true, $allowHtml = true);

			// Now get the plain text from the html string.
			$htmlStringToPtString = JHtml::_('string.truncate', $htmlString, $maxLength, $noSplit = true, $allowHtml = false);

			// If the new plain text string matches the original plain text string we are done.
			if ($ptString == $htmlStringToPtString)
			{
				return $htmlString;
			}
			// Get the number of html tag characters in the first $maxlength characters
			$diffLength = strlen($ptString) - strlen($htmlStringToPtString);

			// Set new $maxlength that adjusts for the html tags
			$maxLength += $diffLength;
			if ($baseLength <= $maxLength)
			{
				return $html;
			}
		}
	}