Validating NON HTML tags in text

[redfort]

Hi ,

          As we know we validate the user input data while processing the from.

          We validate to avoid XSS for that we use html filter to filter invalid tags and all.

        If the data it self contains some tag like data Ex: <HOMETOWN RANGE> . the html filters truncating it to <HOMETOWN>  though the the tag is not a HTML tag .

 

        Presently i am using Input class filter it s truncating the text. Can any one suggest me some filters where we can avoid data truncation with non- html tags  like above.....