Changes by: Jason Hickey (jyh at cs.caltech.edu)
Date: 2006-03-18 20:54:01 -0800 (Sat, 18 Mar 2006)
Revision: 8940
Log message:

      Added "smart" display forms for quoted terms.
      
      This removes display-form translation in Filter_reflect.
      The display of quoted terms uses the $`/$'[d]/$,
      syntax.
      
      $`        : mk_term{...}
      $'[d]     : mk_bterm{d; ...}
      $,        : unquoted term