<?php

$smarty->assign('articleTitle',
                 'Two Soviet Ships Collide - One Dies.
                 Enraged Cow Injures Farmer with Axe.'
                 );

?>

   

Where template is:

{$articleTitle}
{$articleTitle|count_sentences}

   

Will output:

Two Soviet Ships Collide - One Dies. Enraged Cow Injures Farmer with Axe.
2