tfevens

function words($value, $words = 100, $end = '...')
{
	preg_match('/^\s*+(?:\S++\s*+){1,'.$words.'}/u', $value, $matches);
	if ( ! isset($matches[0]) || strlen($value) === strlen($matches[0])) return $value;
	return rtrim($matches[0]).$end;
}

/* 
Usage:

jerewall

<h1>Sitemap</h1>

[menu name="Sitemap"]

/* Create shortcode to generate menu list in post */
/* Shortcode: [menu name="name-of-menu"]  */
function print_menu_shortcode($atts, $content = null) {
extract(shortcode_atts(array( 'name' => null, ), $atts));
return wp_nav_menu( array( 'menu' => $name, 'echo' => false ) );
}