/flow-table {                      % => Parent Child
% Calculate margin values if they have been set as a percentage 
  2 copy
  calc-percentage-margins

% Calculate width value if it have been set as a percentage
  2 copy
  calc-percentage-width

%  dup get-box-dict 
%  /Parent known {
%    dup calc-auto-width-margins
%  } if                             % => Parent Child

% As table width can be deterimined by its contents, we may calculate auto values 
% only AFTER the contents have been reflown; thus, we'll offset the table 
% as a whole by a value of left margin AFTER the content reflow

% suppress top/bottom margin for the first block box inside the table cell
% check if parent of this block is the table cell
  1 index get-box-dict /Display get
  /table-cell eq {
% check if current box is the first child
    1 index get-content 0 get 1 index eq {
      0 1 index put-margin-top
    } if
% check if current box is the last child
    1 index get-content array-last 1 index eq {
      0 1 index put-margin-bottom
    } if
  } if

% DO MARGIN COLLAPSING
  1 index get-line               % => Parent Child Line
  length                         % => Parent Child LL

  0 gt {                         % => Parent Child 
    dup get-margin-top
    context-push-collapsed-margin-top

    dup get-margin-top
    neg
  } {
    1 index get-last             % => Parent Child Last
% Check if current element if the first child 
    dup () eq { true } 
      { 1 index is-container not } ifelse
    { 
      pop                          % => Parent Child
% If parent is a table-cell, suppress top-margin
      1 index get-display  
      /table-cell eq {
        0

        1 index get-margin-top
        context-push-collapsed-margin-top
      } {
% Collapse with parent margins
        dup get-margin-top         % => Parent Child ChildMT
        context-get-collapsed-margin-top
        min                        % => Parent Child min(ChildMT, ParentCMT)
        1 index get-margin-top     
        sub
            
        1 index get-margin-top
        context-get-collapsed-margin-top
        max
        context-push-collapsed-margin-top
      } ifelse
    } {                          % => Parent Child Last
% Collapse with sibling margins
      dup get-margin-bottom
      2 index get-margin-top
      max
      context-push-collapsed-margin-top

      get-margin-bottom          % => Parent Child M
      1 index get-margin-top
      exch sub 0 max neg      
    } ifelse
  } ifelse
  2 index get-current-y          % => Parent Child M CY
  add                            % => Parent Child M+CY

% While drawing, we need position of margin edge, not border edge.
  1 index get-margin-top
  add                              % => Parent Child DY

% Check if we need to offset box vertically due the 'clear' property
  apply-clear

% Set the calculated value as the outer edge of this box
  2 index put-current-y          % => Parent Child

  1 index close-line             % => 
  dup 2 index append-line 

% Set position of upper-left child corner
  1 index get-current-x
  2 index get-current-y       % => Parent Child X Y

  2 index
  move-to-box                 % => Parent Child

% By default, child block box will fill all available parent width;
% note that actual width will be smaller because of non-zero padding, border and margins
  1 index get-width         % => Parent Child PW
  1 index put-full-width    % => Parent Child

% reflow contents
  reflow                    % => Parent Child

% Update the collapsed margin value, with current box bottom margin  
  context-pop-collapsed-margin-top
  
  dup get-margin-bottom
  context-push-collapsed-margin-top

% Calculate margins and/or width is 'auto' values have been specified
  dup get-box-dict 
  /Parent known {
    dup calc-auto-width-margins
  } if                             % => Parent Child

% if left margin had 'auto' value, we need to offeset the box content by it value,
% as it changed; if margin had fixed value, we weill not offset content
  dup get-box-dict
  /Margin get
  /Auto get
  /Left get {
    dup get-margin-left 0            % => Parent Child LM 0
    2 index get-table-content        % => Parent Child LM 0 Content
    {
        2 index 2 index
        offset-box
    } forall
    pop pop                          % => Parent Child
  } if

%  dup 
%  dup get-margin-left
%  0 offset-box                     % => Parent Child

% we're now interested in last content y, not the bottom border of the containing
% block, because, due the min-height, bottom border can contain lesser (lower on the page)
% value than current y
%  1 index get-bottom-internal
  1 index get-current-y
  1 index get-bottom
  sub 

  2 index exch                  % => Parent Child Parent CH
  extend-height pop             % => Parent Child
  
  1 index get-right-internal
  2 index put-current-x

% terminate current line box
  1 index close-line

% clear the stack
  pop pop
} def