hi, i am using struts1,and i want to validate the user input. so i have given regular expression in validation.xml but i also want to validate double quotes(").Actually i want to allow user to enter (").So how can i add this expression in my validation.xml. i m giving the code for ur reference.... mask ^[a-zA-Z0-9 /.;,#'@&()_-]*$ i have tried with " , " but they all are not working... Can any 1 help me... Thank in advance.    More>>