Long word shortner and trunc middle methods for Kohana_Text

text.php

<?php

class Text extends Kohana_Text {
	
	public static function long_words($string, $max_length = 20, $elipsis = '...')
	{
		$words = preg_split('/\s/', $string);
		$elipsis_length = strlen($elipsis);
		
		foreach ($words as $_word)
		{
			if (strlen($_word) > $max_length)
			{
				$string = str_replace($_word, self::trunc_middle($_word, $max_length, $elipsis), $string, 1);
			}
		}
		
		return $string;
	}
	
	public static function trunc_middle($string, $max_length = 20, $elipsis = '...')
	{
		$string_length = strlen($string);
		
		if ($string_length > $max_length)
		{
			$elipsis_length = strlen($elipsis);
			$buffer_length = ($max_length - $elipsis_length) / 2;
			$start = substr($string, 0, $buffer_length);
			$end = substr($string, $string_length - $buffer_length);
			$string = "{$start}{$elipsis}{$end}";
		}
		
		return $string;
	}	
}