how can i replace struts1 <logic:match>tag in struts2?

Question

hi all

in struts1, this is <logic:match> tag to use [Regular Expression].

how can i use the function in struts2 tag ?

for example, i want to check a string begin with 'AA',

<s:if  test="">
  The string begin with 'AA'
</s:if>

Thank you