how to find size of the feeds at JSTL

I need to find the size of the JSTL and write it to end="si开发者_C百科ze of the feed " at the following code. Could you please help me how to find the size of the feed?

Regards Altaico

<x:forEach begin="0" end="4" var="story"
           select="$doc/rss/channel/item" varStatus="status">
//end = "size of the rss" 

Just don't specify start and end and every item will be iterated.

<x:forEach var="story"
    select="$doc/rss/channel/item" varStatus="status">