java jspl fn

<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>

fn:contains                  <c:if test="${fn:contains(name, searchString)}"> 
fn:containsIgnoreCase                 (     ) <c:if test="${fn:containsIgnoreCase(name, searchString)}"> 
fn:endsWith                 <c:if test="${fn:endsWith(filename, ".txt")}"> 
fn:escapeXml        XML  ，   <      &lt; ${fn:escapeXml(param:info)} 
fn:indexOf                 ${fn:indexOf(name, "-")} 
fn:join                 ，          ${fn:join(array, ";")} 
fn:length         ，        ${fn:length(shoppingCart.products)} 
fn:replace             ${fn:replace(text, "-", "&#149;")} 
fn:split              ${fn:split(customerNames, ";")} 
fn:startsWith                <c:if test="${fn:startsWith(product.id, "100-")}"> 
fn:substring      ${fn:substring(zip, 6, -1)} 
fn:substringAfter                 ${fn:substringAfter(zip, "-")} 
fn:substringBefore                   ${fn:substringBefore(zip, "-")} 
fn:toLowerCase      ${fn.toLowerCase(product.name)} 
fn:toUpperCase        ${fn.UpperCase(product.name)} 
fn:trim            ${fn.trim(name)}