Example 11     <<      >>       intro       contents     

Processing instructions (PIs) allow documents to contain instructions for applications.

  Well-formed documents   HOME     

Processing instructions :

               <example>
               <?perl lower-to-upper-case  ?>
               <?web-server add-header = "university" ?>
               <text>vscht</text>
               </example>
               
            

  Documents with errors   HOME     

Processing instruction must end with ?>:

               <example>
               <?perl run _>
               
               </example>