%
% backtrack within this tree level to the prior lookup open
%
% this is the closing proc brace, now find matching open brace
%
_\ dup
%
% stack: close-lookup open-search
%
{
 Tree.Prev( ?
 dup !\
 "Type" \_ "lookup" eq$
 "Data" \_ "open" eq$ and
 {
%
% have both angle brackets for lookup
% delete the close angle bracket
%
% stack: close-lookup open-lookup
%
  second Mep.Remove
  "look" dup "Type" \!
  dup "Data" \!
  !\\
  true ?
 } if
} loop
pop2