How & Where is best place to unescape hl7 Delimeters

I am looking for info on how to un-escape the hl7 escape sequences in  the 
feed I am receiving.

My incoming feed is correctly escaped as the standard specifies....for 
example:  my subcomponent delimeter is replaced with \T\ as the standard 
specifies.
      \F\ field separator 
      \S\ component separator 
      \T\ subcomponent separator 
      \R\ repetition separator 
       \E\ escape character 


I expect the best way to do this in the pipeline if possible after the
data 
has been transformed to XML by doing a find&replace on the xmlStream.  It 
would be a lot of work to do this with a map and surely not as efficient.





-- 
BrettVP