File AlDraTex.sty of Package tetex-tex4ht
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% v 1.7
% AlDraTex %
% Copyright (C) 1992 Eitan M. Gurari %
% %
% This program can redistributed and/or modified under %
% the terms of the LaTeX Project Public License %
% Distributed from CTAN archives in directory %
% macros/latex/base/lppl.txt; either version 1 of the %
% License, or (at your option) any later version. %
% %
% However, you are allowed to modify this program %
% without changing its name, if you modify its %
% signature. Changes to the signature can be introduced %
% with a directive of the form %
% \message{signature} %
% %
% gurari@cse.ohio-state.edu %
% http://http://www.cse.ohio-state.edu/~gurari/ %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\expandafter\edef\csname :RestoreCatcodes\endcsname{%
\catcode`\noexpand\noexpand\noexpand \^=\the\catcode`\^%
}
\catcode`\^=7
\expandafter\edef\csname :RestoreCatcodes\endcsname{%
\csname :RestoreCatcodes\endcsname
\catcode`\noexpand \_=\the\catcode`\_%
\catcode`\noexpand :=\the\catcode`:%
\catcode`\noexpand &=\the\catcode`&%
\catcode`\noexpand \#=\the\catcode`\#%
\catcode`\noexpand \^^M=\the\catcode`\^^M%
\let\expandafter\noexpand
\csname:RestoreCatcodes\endcsname=\noexpand\undefined}
\catcode`\:=11
\ifx \AlDraTex\:undefined \def\AlDraTex{chart,diagram} \fi
\newif\if:circle
\newif\if:option
\def\:CheckOption#1{ \def\:temp{#1}
\:optionfalse
\expandafter\:GetOptions\AlDraTex,,// }
\def\:GetOptions#1,#2//{ \def\:next{#1}
\ifx \:next\empty
\else \ifx \:temp\:next \:optiontrue \let\:next=\relax
\else \def\:next{\:GetOptions#2//}
\fi \fi \:next }
\def\:DefineExt#1{%
\Define#1{\begingroup \:DraCatCodes
\csname .:\string#1\endcsname}%
\expandafter\Define\csname .:\string#1\endcsname}
\IntVar\:C \IntVar\:Ca
\IntVar\:Cb \IntVar\:Cc \newtoks\:tk
\DecVar\Va \DecVar\Vb
\DecVar\:Vc \DecVar\:Vd \DecVar\:Ve
\Define\:GetX(2){\Va=#1;}
\Define\:GetY(2){\Vb=#2;}
\Define\:GetXY(2){\Va=#1;\Vb=#2;}\Define\:GetExit(2){
\:Vc=#1; \IF \LtDec(\:Vc,0) \THEN \:Vc=-\:Vc; \FI
\:Vd=#2; \IF \LtDec(\:Vd,0) \THEN \:Vd=-\:Vd; \FI
\IF \LtDec(\:Vd,\:Vc) \THEN \:Vd=\:Vc; \FI
\Va=#1; \Vb=#2;
\IF \GtDec(\:Vd,0) \THEN \Va/\:Vd; \Vb/\:Vd; \FI }
\Define\:GetEdgeFront(1){\def\:EdgeFront{#1}}
\Define\:Count(1){\:C+1;}\let\Defend=\noexpand
\def\KeepSpaces{\def\:Spaces{\catcode`\ =10 \relax}}
\def\RemoveSpaces{\let\:Spaces=\relax}
\RemoveSpaces\def\:edef#1#2{\edef\:Temp{\noexpand\Define
\noexpand#1{#2}}\:Temp }
\:CheckOption{chart}\if:option
\edef\AlDraTex{\AlDraTex,pie,bar,xy}
\else \:CheckOption{pie}\if:option
\edef\AlDraTex{\AlDraTex,chart}
\else \:CheckOption{xy}\if:option
\edef\AlDraTex{\AlDraTex,chart}
\else \:CheckOption{bar}\if:option
\edef\AlDraTex{\AlDraTex,chart}
\fi\fi\fi\fi
\:CheckOption{chart}\if:option
\def\Compute#1(#2){\def\NextDefine{\::Comp#1(#2)}\Define\:Comp(#2)}
\def\::Comp#1(#2){\Define\:Temp(#2){}\ifx \:Temp\:Comp
\let\:Compute=\empty
\else \Define\:Compute(1){\:Comp(##1)\:Return#1}\fi}
\Compute\I(1){}\Define\:ChooseColor(1){
\IF \EqDec(#1,1) \THEN \SetBrush(0,0){}
\ELSE\IF \EqDec(#1,2) \THEN
\SetBrush(2pt\du,1pt\du){ \PenSize(0.2pt)
\Units(1pt,1pt) \Move(0,-0.37) \Line(0,0.75)}
\ELSE\IF \EqDec(#1,3) \THEN
\SetBrush(1pt\du,2pt\du){ \PenSize(0.2pt)
\Units(1pt,1pt) \Move(-0.37,0) \Line(0.75,0)}
\ELSE\IF \EqDec(#1,4) \THEN
\SetBrush(2pt\du,2pt\du){ \PenSize(0.2pt)
\Units(1pt,1pt){\Move(-1,0)\Line(2,0)}
\Move(0,-1)\Line(0,2)}
\ELSE\IF \EqDec(#1,5) \THEN
\SetBrush(5pt\du,2pt\du){ \PenSize(0.2pt)
\Units(1pt,1pt) \Move(0,-0.37) \Line(0,0.75)}
\ELSE\IF \EqDec(#1,6) \THEN
\SetBrush(2pt\du,5pt\du){ \PenSize(0.2pt)
\Units(1pt,1pt) \Move(-0.37,0) \Line(0.75,0)}
\ELSE
\SetBrush(#1pt\du,#1pt\du){
\Units(1pt,1pt)\PaintRect(0.37,0.37)}
\FI\FI\FI\FI\FI\FI}
\fi
\:CheckOption{pie}\if:option
\Define\PieChart{\begingroup \:Spaces \:PieChart}
\Define\:PieChart(1){\endgroup
\Table\:Temp{#1}
\:Ve=0; \:Temp(0,99){\:total}
\MarkLoc(o:) \MoveF(\:PieR) \MarkLoc(b:)
\DSeg\:Vd(o:,b:) \MoveToLoc(o:)
\:C=0; \:Temp(0,99){\:InsertSlice} } \Define\PieChartSpec(1){
\IF \EqText(,#1) \THEN\ELSE \:PieSpec(#1)
\FI \:PieCol}
\Define\:PieSpec(3){
\:edef\:PieR{#2} \:edef\:LblDist{#3}
\IF \EqInt(1,#1) \THEN
\def\:ReturnComp##1{\:slice(\Val##1,\Val##1)}
\Define\:total(1){
\ifx \:Compute\empty \:Ve+##1;
\else \let\:Return=\:ReturnAdd \:Compute(##1)\fi}
\Define\:InsertSlice(1){
\ifx \:Compute\empty \:slice(##1,##1)
\else \let\:Return=\:ReturnComp\:Compute(##1) \fi}
\ELSE
\def\:ReturnComp##1{\edef\:tempa{\Val##1}}
\Define\:total(2){
\ifx \:Compute\empty \:Ve+##1;
\else \let\:Return=\:ReturnAdd \:Compute(##1)\fi}
\Define\:InsertSlice(2){
\ifx \:Compute\empty \:slice(##1,##2)
\else \let\:Return=\:ReturnComp\:Compute(##1)
\:slice(\:tempa,##2) \fi}
\FI }
\def\:ReturnAdd#1{\:Ve+#1;}\Define\:slice(2){ \:C+1; \Va=#1; \Va/\:Ve;
\Va*360; {
\Va/2; \Rotate(\Val\Va) \:DetachSlice
\MarkLoc(o:)
\MoveF(1pt\du) \MarkLoc(x:) \CSeg\:SetEnEx(x:,o:)
\MoveToLoc(o:) \MoveF(\:LblDist) \:AdjChatLbl(0,99){\:MvLbl}
\SliceText(--#2--) \MoveToLoc(o:)
\Vb=\:Vd; \Vb+\Va; \Vb+\Va;
\DrawOvalArc(\:PieR,\:PieR)(\Val\:Vd,\Val\Vb)
\:Ca=0; \:PieColors(0,99){\:Ca+1;\:PaintPie}
{\RotateTo(\Val\:Vd) \LineF(\:PieR)}
\RotateTo(\Val\Vb) \LineF(\:PieR)
} \Rotate(\Val\Va) \:Vd+\Va; }
\Define\:SetEnEx(2){\:Vc=#1; \Vb=#2; \EntryExit(\Val\:Vc,\Val\Vb,0,0)}
\Define\DetachSlices(2){
\IF \EqInt(#2,0) \THEN
\Define\:DetachSlice{}
\ELSE\IF \EqText(,#1) \THEN
\def\:DetachSlice{ \MoveF(#2) }
\ELSE
\Table\:DSlice{#1}
\Define\:OptDSlice(1){
\IF \EqInt(\:C,##1) \THEN
\MoveF(#2)
\FI}
\Define\:DetachSlice{ \:DSlice(0,99){\:OptDSlice} }
\FI \FI } \Define\MovePieLabels(1){
\IF \EqText(,#1) \THEN
\Table\:AdjChatLbl{0,0,0}
\ELSE \Table\:AdjChatLbl{0,0,0} \FI}
\Define\:MvLbl(3){
\IF \EqInt(\:C,#1) \THEN \Move(#2,#3) \FI }
\:DefineExt\:PieCol(1){\endgroup
\IF \EqText(,#1) \THEN
\ELSE \Table\:PieColors{#1} \FI}
\Define\:PaintPie(1){{
\IF \EqInt(\:C,\:Ca) \THEN
\IF \GtDec(#1,0) \THEN
\:ChooseColor(#1)
\:Ve=\:PieR;
\IF \GtDec(\Va,90) \THEN
\Va=\:Vd; \Va+181;
\PaintOvalArc(\Val\:Ve,\Val\:Ve)(\Val\:Vd,\Val\Va)
\Va-1; \:Vd=\Va; \FI
\PaintOvalArc(\Val\:Ve,\Val\:Ve)(\Val\:Vd,\Val\Vb)
\RotateTo(\Val\Vb) \MoveF(\:PieR) \MarkLoc(a:)
\MoveToLoc(o:) \RotateTo(\Val\:Vd) \MoveF(\:PieR)
\MarkLoc(b:) \PaintQuad(o:,o:,a:,b:)
\MoveF(-0.5pt\du) \MarkLoc(b:) \MoveToLoc(o:)
\Rotate(1) \MoveF(\:PieR) \MarkLoc(b':)
\MoveToLoc(o:) \RotateTo(\Val\Vb) \MoveF(\:PieR)
\MoveF(-0.5pt\du) \MarkLoc(a:) \MoveToLoc(o:)
\Rotate(-1) \MoveF(\:PieR) \MarkLoc(a':)
\PaintQuad(a:,a':,b':,b:)
\FI \FI }}\Define\Legend(1){ \AlignGrid(-1,\:LgEn)
\PictNode(2){ \EntryExit(-1,\:LgEn,0,0)
\DrawRect(\:LgSzX,\:LgSzY)
\IF \GtDec(##1,0) \THEN
\:ChooseColor(##1)
\IF \EqDec(##1,4) \THEN
\Move(0.05,0.05) \:Vd=\:LgSzX; \:Ve=\:LgSzY;
\:Vd-0.1; \:Ve-0.1;
\PaintRect(\Val\:Vd,\Val\:Ve) \Move(-0.05,-0.05)
\ELSE \PaintRect(\:LgSzX,\:LgSzY) \FI
\FI
\:Vd=\:LgSzX; \:Vd+5;
\:Ve=\:LgEn; \:Ve+1; \:Ve*\:LgSzY; \:Ve/2;
\Move(\Val\:Vd,\Val\:Ve)
\Text(--\ignorespaces##2--) }
\GridDiagram(#1)()()}
\:DefineExt\LegendSpec(3){\endgroup
\:edef\:LgSzX{#1}\:edef\:LgSzY{#2}\:edef\:LgEn{#3}}
\LegendSpec(10,10,0)
\PieChartSpec(1,40,20)(0)
\TextPar\Define\SliceText(1){\Text(--#1--)}
\DetachSlices(,0) \MovePieLabels()
\fi
\:CheckOption{xy}\if:option
\Define\Axis(2){ \MoveToLoc(#1) \CSeg\:GetXY(#1,#2)
\begingroup \:Spaces \:axis}
\Define\:axis(2){ \endgroup\:axs#1//{#2}}
\def\:axs#1#2//#3{\::axs(#1,#2,#3)}
\Define\::axs(3){ \SaveAll \Units(1pt,1pt)
\def\:tic{\:ticLn( \Val\:Vc,0)}
\IF \EqText(W,#1) \THEN
\def\:MvTicTxt{\Move(-\:TxtPos,0)}
\IF \LtDec(\Va,0) \THEN \Move(\Val\Va,0) \:Vc=-\Va;
\ELSE \:Vc=\Va; \FI
\EntryExit(1,0,0,0) \Va=0;
\ELSE\IF \EqText(E,#1) \THEN
\IF \GtDec(\Va,0) \THEN
\Move(\Val\Va,0) \:Vc=-\Va;
\ELSE \:Vc=\Va; \FI
\def\:MvTicTxt{\Move(\:TxtPos,0)}
\Va=0; \EntryExit(-1,0,0,0)
\ELSE
\def\:tic{\:ticLn(0, \Val\:Vc)}
\IF \EqText(N,#1) \THEN
\IF \GtDec(\Vb,0) \THEN
\Move(0,\Val\Vb) \:Vc=-\Vb;
\ELSE \:Vc=\Vb; \FI
\EntryExit(0,-1,0,0)
\def\:MvTicTxt{\Move(0,\:TxtPos)}
\ELSE \EntryExit(0,1,0,0)
\IF \LtDec(\Vb,0) \THEN
\Move(0,\Val\Vb) \:Vc=-\Vb;
\ELSE \:Vc=\Vb; \FI
\def\:MvTicTxt{\Move(0,-\:TxtPos)}
\FI
\Vb=0;
\FI\FI
\:Ca=#2; \IF \EqText(#2,-0) \THEN \:Ca=-1; \FI
\IF \LtInt(\:Ca,0) \THEN
\:Ca=-#2; { \Line(\Val\Va,\Val\Vb)
\MarkLoc(bk:)
\IF \EqDec(\Va,0) \THEN
\IF \GtDec(\Vb,0) \THEN
\ifx \:FrArrowHead\empty \else \Line(0,5) \fi
\Vb=\:ArrowLength;
\ELSE
\ifx \:FrArrowHead\empty \else \Line(0,-5) \fi
\Vb=-\:ArrowLength; \FI
\ELSE
\IF \GtDec(\Va,0) \THEN
\ifx \:FrArrowHead\empty \else \Line(5,0) \fi
\Va=\:ArrowLength;
\ELSE
\ifx \:FrArrowHead\empty \else \Line(-5,0) \fi
\Va=-\:ArrowLength; \FI
\FI
\Move(\Val\Va,\Val\Vb) \MarkLoc(fr:) \:FrArrowHead }
\FI
\:C=\:Ca; \:C/10; \:C*10; \:Ca-\:C;
\IF \GtInt(\:Ca,4) \THEN \:Ca-5; \let\:PutTics=\:TicsByLoc \FI
\IF \EqInt(\:Ca,4) \THEN
\Define\:ticLn(2){\DoLine(##1,##2)(7pt\du){
\Units(1pt,1pt) \MoveF(-4) \LineF(2) }}
\:Ca-1;
\ELSE \let\:ticLn=\Line \FI
\IF \LtInt(\:Ca,3) \THEN
\IF \GtDec(\:Vc,0) \THEN \:Vc= \:TicLn;
\ELSE \:Vc=-\:TicLn;
\FI\FI
\ifcase \Val\:Ca
\:Vc= 0; \def\:TxtPos{3} % 0
\or \:Vc=-\:Vc; \:Vd=\:TicLn; \:Vd+3; \edef\:TxtPos{\Val\:Vd} % 1
\else \def\:TxtPos{3} \fi
\:Ca=\:C; \:Ca/10;
\Table\:Temp{#3} \:C=-1; \:Temp(0,99){\:Count}
\IF \GtInt(\:C,0) \THEN \:PutTics \FI \RecallAll}
\Define\:PutTics{ \Va/\:C; \Vb/\:C;
{ \:Temp(0,99){ {\PenSize(\:TicTh)\:tic} \:TicText } }
\IF \GtInt(\:Ca,0) \THEN
\:C*\:Ca; \Va/\:Ca; \Vb/\:Ca;
\IF \GtDec(\:Vc,\:TicLn) \THEN \:Vc= \:TicLn; \FI
\IF \LtDec(\:Vc,-\:TicLn) \THEN \:Vc=-\:TicLn; \FI
\:Vc*\:TicFc; { \let\:ticLn=\:Ln
\Do(0,\Val\:C){ {\PenSize(\:TicTh)\:tic}
\Move(\Val\Va,\Val\Vb) }}
\FI}\Define\:TicsByLoc{ \MarkLoc(x:)
\Define\:tempa(2){\MoveTo(0,##1) \MarkLoc(a:)
\MoveTo(0,##2) \MarkLoc(b:)
\LSeg\:Ve(a:,b:)}
\:Temp(0,0){\:tempa }
\Define\:tempa(2){ \MoveTo(0,##1) \MarkLoc(b:)
\LSeg\:Vd(a:,b:) \:Vd/\:Ve;
{ \Va*\:Vd; \Vb*\:Vd; \MoveToLoc(x:)
\Move(\Val\Va,\Val\Vb)
{\PenSize(\:TicTh)\:tic} \:TicText(##2) }}
\:Temp(1,99){\:tempa } }\Define\:TicText(1){ \MarkLoc(o:)
\:MvTicTxt\TicText(--#1--) \MoveToLoc(o:)
\Move(\Val\Va,\Val\Vb)}
\Define\TicSpec(3){
\:edef\:TicLn{#1} \:edef\:TicFc{#2} \:edef\:TicTh{#3}}
\TicSpec(6,0.6,0.2 pt)
\TextPar\Define\TicText(1){ \IF \EqText(,#1) \THEN
\ELSE \Text(--\strut#1--) \FI}
\fi
\:CheckOption{bar}\if:option
\:DefineExt\BarChart(1){\endgroup
\Table\:Chart{#1} \MarkLoc(Origin)
\XSaveUnits \:Ca=0; \Vb=0; \:Vc=0;
\:Chart(0,999){\:Ca+1;\:MaxBar}
\ifx \:Hchart\empty
\:Ca*10; \:Vc+\:BarGrdOver;
\ifx H\:BarDir
\Move(\Val\:Vc,0) \MarkLoc(NE)
\Move(0,-\Val\:Ca) \MarkLoc(SE)
\Vb-\:Vc; \Move(\Val\Vb,0) \Move(-\:BarGrdUnder,0)
\MarkLoc(SW) \Move(0,\Val\:Ca) \MarkLoc(NW)
\edef\:BsLn{{\noexpand\Line(0,-10)}}
\else
\Move(0,\Val\:Vc) \MarkLoc(NW)
\Move(\Val\:Ca,0) \MarkLoc(NE)
\Vb-\:Vc; \Move(0,\Val\Vb)
\Move(0,-\:BarGrdUnder) \MarkLoc(SE)
\Move(-\Val\:Ca,0) \MarkLoc(SW)
\edef\:BsLn{{\noexpand\Line(10,0)}}
\fi \MoveToLoc(Origin)
\else
\Va=\:Vc; \:Vd=\:Vc; \:Vd-\Vb; \Va/\:Vd;
\ifx H\:BarDir
\Va*\:Hchart; \Move(\Val\Va,0)
\Move(\:BarGrdOver,0) \MarkLoc(NE)
\Move(0,-\:Vchart) \MarkLoc(SE)
\Move(-\:Hchart,0) \Move(-\:BarGrdOver,0)
\Move(-\:BarGrdUnder,0) \MarkLoc(SW)
\Move(0,\:Vchart) \MarkLoc(NW)
\:Ca*10; \edef\:BsLn{{\noexpand\Line(0,-10)}}
\else
\Va*\:Vchart; \Move(0,\Val\Va)
\Move(0,\:BarGrdOver) \MarkLoc(NW)
\Move(\:Hchart,0) \MarkLoc(NE)
\Move(0,-\:Vchart) \Move(0,-\:BarGrdOver)
\Move(0,-\:BarGrdUnder) \MarkLoc(SE)
\Move(-\:Hchart,0) \MarkLoc(SW)
\:Ca*10; \edef\:BsLn{{\noexpand\Line(10,0)}}
\fi \MoveToLoc(Origin)
\Va=\:Hchart; \Va/\:Ca;
\:Vc-\Vb; \:Vd=\:Vchart; \:Vd/\:Vc;
\:Hflip\Units(\Val\Va pt,\Val\:Vd pt)
\:Vc+\Vb;
\fi
\def\:GrdLn{}
\ifx \:BarGrdDist\empty \def\:BsLn{} \else
\let\du=\relax
\IF \GtInt(\:BarGrdDist,0) \THEN
\:Vd=\:Vc; \:Vd/\:BarGrdDist; \:C[\:Vd];
\IF \GtDec(\:C,\:Vd) \THEN \:C-1; \FI
\IF \GtInt(\:C,0) \THEN
\edef\:GrdLn{{ { \noexpand\noexpand\noexpand\:BsLn }
\PenSize(\:TicTh)
\noexpand\noexpand\noexpand\Do(1,\Val\:C){
\:Hflip{\noexpand\noexpand\noexpand\Move}(0,\:BarGrdDist)
{ \:HflipMY{\noexpand\noexpand\noexpand\Line}(10,0) } }}}
\:GridLoc(Max)
\FI
\Vb+\:Vc; \Vb-\:BarGrdUnder;
\Vb/\:BarGrdDist; \:C[\Vb];
\IF \LtDec(\:C,\:Vd) \THEN \:C+1; \FI
\IF \LtInt(\:C,0) \THEN
\edef\:GrdLn{
\ifx\:AddBarDepth\:AddBarDp\:HflipMY{\noexpand\Move}(-\:HBarx,\:VBarx)
\fi
{ \noexpand\:BsLn }
\:GrdLn { \PenSize(\:TicTh)
\noexpand\Do(-1,\Val\:C){
\:Hflip{\noexpand\Move}(0,-\:BarGrdDist)
{ \:HflipMY{\noexpand\Line}(10,0) } }}
}
\:GridLoc(Min)
\ELSE \edef\:GrdLn{{\ifx\:AddBarDepth\:AddBarDp
\:HflipMY{\noexpand\Move}(-\:HBarx,\:VBarx) \fi
{\noexpand\:BsLn} \:GrdLn}}
\FI
\MoveToLoc(Origin)
\FI
\let\du=\:SvDu
\fi
\Va=0; \:Vc=0;
\:Chart(0,99){
\:Hflip\Move(0,\Val\:Vc)
\:NoBarClip() \:DrawBars}
\ifx\:AddBarDepth\:AddBarDp
\MoveToLoc(Origin) \:HflipMY\Move(-\:HBarx,\:VBarx) \MarkLoc(Origin)
\MoveToLoc(NW) \:HflipMY\Move(-\:HBarx,\:VBarx) \MarkLoc(NW)
\MoveToLoc(NE) \:HflipMY\Move(-\:HBarx,\:VBarx) \MarkLoc(NE)
\MoveToLoc(SW) \:HflipMY\Move(-\:HBarx,\:VBarx) \MarkLoc(SW)
\MoveToLoc(SE) \:HflipMY\Move(-\:HBarx,\:VBarx) \MarkLoc(SE)
\fi
\XRecallUnits \MoveToLoc(Origin)
\let\:Return=\:undefined \:NoBarClip() } \Define\:DrawBar(2){
\:Bars(#1,#1){\:GetXY} \Vb-\Va;
\ifx \:Compute\empty \edef\:tempa{#2}
\else \def\:Return##1{\edef\:tempa{\Val##1}}\:Compute(#2)
\fi
\ifx H\:BarDir \Move(0,-\Val\Va)
\:DrawBr(\:tempa,-\Val\Vb) \:AddBarPaint(#1,\:tempa)
\Clip(\:tempa,-\Val\Vb)
\:AddBarDepth(#1,\:tempa) \:Cluster(\:tempa) \Move(0,\Val\Va)
\else \Move(\Val\Va,0)
\:DrawBr(\Val\Vb,\:tempa) \:AddBarPaint(#1,\:tempa)
\Clip(\Val\Vb,\:tempa)
\:AddBarDepth(#1,\:tempa) \:Cluster(\:tempa) \Move(-\Val\Va,0)
\fi }
\Define\DrawBar(2){ \DrawRect(#1,#2)}
\Define\:DrawBr(1){\MarkLoc(x:)\DrawBar(#1)\MoveToLoc(x:)}
\:DefineExt\BarChartSpec(1){\endgroup
\IF \EqText(,#1) \THEN \ELSE \:BarSpc(#1) \FI \:BarCol }
\Define\:BarSpc(2){
\let\:Temp=\:SeqBars \let\:BarDir=V \let\:newStck=\empty
\let\:endnewStck=\empty
\Define\:AddBarDepth(2){} \Define\:Cluster(1){}
\:OptBars#1...// \Table\:Bars{#2}
\:C=-1; \:Bars(0,999){\:Count}
\ifx \:Temp\:TxtBar \IF \GtInt(\:C,1) \THEN
\:tk{#1,#2} \:aldwarn8{}
\FI \fi
\:Temp }\def\:OptBars#1#2#3#4//{\:OpBr(#1)\:OpBr(#2)\:OpBr(#3)}
\Define\:OpBr(1){
\IF \EqText(H,#1) \THEN \let\:BarDir=H
\ELSE\IF \EqText(T,#1) \THEN \let\:Temp=\:TxtBar
\ELSE\IF \EqText(S,#1) \THEN \Define\:Cluster(1){ \:Vc-##1;
\:Hflip\Move(0,##1) }
\def\:newStck{
\edef\:svMinBar{\Val\Vb} \Vb=0;
\edef\:svMaxBar{\Val\:Vc} \:Vc=0; }
\def\:endnewStck {
\IF \LtDec(\:svMinBar,\Vb) \THEN \Vb=\:svMinBar; \FI
\IF \GtDec(\:svMaxBar,\:Vc) \THEN \:Vc=\:svMaxBar; \FI }
\ELSE\IF \EqText(3,#1) \THEN \let\:AddBarDepth=\:AddBarDp
\FI\FI\FI\FI } \def\:BarsCommand#1{\EqInt(\Val\:C,#1)\THEN
\Define\:DrawBars(}
\Define\:SeqBars{
\IF \:BarsCommand01){ \:DrawBar(0,##1) \:GrdLn
\:HflipMY\Move(10,0) \:Vc=0;}
\Define\:MaxBar{\:maxBar}
\ELSE \IF \:BarsCommand12){ \:DrawBar(0,##1) \:DrawBar(1,##2)
\:slotgrdln
}
\Define\:MaxBar(2){
\:newStck \:maxBar(##1)\:maxBar(##2) \:endnewStck }
\ELSE \IF \:BarsCommand23){ \:DrawBar(0,##1)
\:DrawBar(1,##2) \:DrawBar(2,##3)
\:slotgrdln
}
\Define\:MaxBar(3){
\:newStck \:maxBar(##1)\:maxBar(##2)\:maxBar(##3) \:endnewStck }
\ELSE \IF \:BarsCommand34){ \:DrawBar(0,##1)
\:DrawBar(1,##2) \:DrawBar(2,##3) \:DrawBar(3,##4)
\:slotgrdln
}
\Define\:MaxBar(4){ \:newStck
\:maxBar(##1)\:maxBar(##2)\:maxBar(##3)\:maxBar(##4) \:endnewStck }
\ELSE \IF \:BarsCommand45){ \:DrawBar(0,##1)
\:DrawBar(1,##2) \:DrawBar(2,##3)
\:DrawBar(3,##4) \:DrawBar(4,##5)
\:slotgrdln
}
\Define\:MaxBar(5){ \:newStck \:maxBar(##1)
\:maxBar(##2)\:maxBar(##3)\:maxBar(##4)\:maxBar(##5) \:endnewStck }
\ELSE \:aldwarn7{}
\FI \FI \FI \FI \FI }\Define\:GOBBLE(1){}
\Define\:AddBarDp(2){ \MarkLoc(a:)
\:HflipMY\Line(-\:HBarx,\:VBarx) \MarkLoc(b:)
\:HflipMY\Line(0,#2) \MarkLoc(c:)
\:HflipMY\Line(\:HBarx,-\:VBarx) \MarkLoc(d:)
\ifx \:Cluster\:GOBBLE \:TopIIIdTop
\else
\IF \GtInt(\:C,#1) \THEN\ELSE \:TopIIIdTop \FI
\fi
\:HflipMY\Move(\:HBarx,0) \MarkLoc(f:) \MoveToLoc(b:)
\:HflipMY\Move(0,-\:VBarx) \MarkLoc(b:) \CSeg\Clip(b:,f:)
\MoveToLoc(a:) }
\Define\BarDepth(1){
\edef\:HBarx{#1pt\noexpand\du} \Va=#1; \Va*1.25;
\edef\:VBarx{\Val\Va pt\noexpand\du} }
\BarDepth(3)
\def\:Hflip#1(#2,#3){%
\ifx H\:BarDir #1(#3,#2)\else #1(#2,#3)\fi}
\def\:HflipMY#1(#2,#3){%
\ifx H\:BarDir #1(#3,-#2)\else #1(#2,#3)\fi} \Define\:TopIIIdTop{
\:HflipMY\Line(\Val\Vb,0) \MarkLoc(e:)
\:HflipMY\Line(-\:HBarx,\:VBarx) \MarkLoc(f:)
{\LineToLoc(c:)}}\def\::Compute#1{\ifx \:Compute\empty
\edef\:tempa{#1}%
\else \def\:Return##1{\edef\:tempa{\Val##1}}\:Compute(#1)\fi}
\Define\:TxtBar{
\Define\:DrawBars(2){
\MarkLoc(a:) \:Bars(0,0){\:GetXY} \Va+\Vb; \Va/2;
\:HflipMY\Move(\Val\Va,0) \MarkLoc(BarBot)
\::Compute{##1} \:Hflip\Move(0,\:tempa) \MarkLoc(BarTop)
\BarText(--##2--) \MoveToLoc(a:)
\:DrawBar(0,##1) \:GrdLn
\:HflipMY\Move(10,0) \:Vc=0;}
\Define\:MaxBar{\:maxTxtBar}}
\Define\:maxTxtBar(2){\:maxBar(#1)}
\TextPar\Define\BarText(1){
\:Hflip\Move(0,4pt\du) \:Hflip\EntryExit(0,-1,0,0)
\Text(--\ignorespaces#1--)}\:DefineExt\:BarCol(1){\endgroup
\IF \EqText(,#1) \THEN\ELSE
\Table\:Color{#1&0&0&0&0} \FI} \Define\:GetColor(1){\:Vc=#1;}
\Define\:AddBarPaint(2){{ \PenSize(0.2pt)
\MarkLoc(a:) \MoveTo(0,0) \MarkLoc(b:)
\ifx V\:BarDir \MoveTo(\Val\Vb,#2)
\else \MoveTo(#2,-\Val\Vb) \fi
\MarkLoc(c:) \MoveToLoc(a:) \Units(1pt,1pt)
\:Color(#1,#1){\:GetColor}
\IF \EqDec(\:Vc,2) \THEN
\:VrPnt
\ELSE\IF \EqDec(\:Vc,3) \THEN
\:HrPnt
\ELSE\IF \EqDec(\:Vc,4) \THEN
\PenSize(0.2pt) {\:VrPnt} \:HrPnt
\ELSE \IF \GtDec(\:Vc,0) \THEN
\:ChooseColor(\Val\:Vc)
\CSeg\PaintRect(b:,c:)
\FI \FI \FI \FI}}\Define\:VrPnt{ \CSeg\:GetXY(b:,c:) \:C[\Va];
\:Vc=\Va; \:Vc-2; \:Vc/1.5; \:C[\:Vc];
\:Vc=\:C; \:Vc*1.5; \:Vc-\Va; \:Vc/-2; \Move(\Val\:Vc,0)
\Do(0,\Val\:C){ {\Line(0,\Val\Vb)} \Move(1.5,0) } }
\Define\:HrPnt{ \CSeg\:GetXY(b:,c:) \:C[\Vb];
\:Vc=\Vb; \ifx V\:BarDir \:Vc-2; \else \:Vc+2; \fi
\:Vc/1.5; \:C[\:Vc]; \:Vc=\:C; \:Vc*1.5;
\:Vc-\Vb; \:Vc/-2; \Move(0,\Val\:Vc)
\Do(0,\Val\:C){ {\Line(\Val\Va,0)}
\Move(0,\ifx H\:BarDir-\fi 1.5)} }
\Define\BarClipOn{\Define\:NoBarClip(1){}}
\Define\BarClipOff{\let\:NoBarClip=\Clip}
\BarClipOff\Define\:maxBar(1){
\ifx \:Compute\empty \edef\:tempa{#1}
\else \def\:Return##1{\edef\:tempa{\Val##1}}\:Compute(#1)
\fi
\IF \GtDec(\:tempa,0) \THEN
\ifx \:Cluster\:GOBBLE
\IF \GtDec(\:tempa,\:Vc) \THEN \:Vc=\:tempa; \FI
\else
\:Vc+\:tempa;
\fi
\ELSE
\ifx \:Cluster\:GOBBLE
\IF \LtDec(\:tempa,\Vb) \THEN \Vb=\:tempa; \FI
\else
\Vb-\:tempa;
\fi
\FI}
\Define\ChartSize(1){
\IF \EqText(,#1) \THEN
\def\:Hchart{} \def\:Vchart{}
\ELSE \:ChartSz(#1) \FI}
\Define\:ChartSz(2){
\MarkLoc(o:) \Move(#1 \du,#2 \du) \MarkLoc(x:)
\CSeg\:GetXY(o:,x:) \edef\:Hchart{\Val\Va}
\edef\:Vchart{\Val\Vb} \MoveToLoc(o:) }
\ChartSize()\let\:SvDu=\du
\Define\:GridLoc(1){
\:Vd=\:C; \:Vd*\:BarGrdDist; \MoveToLoc(Origin)
\ifx V\:BarDir
\Move(10,0) \MarkLoc(#1)
\MoveToLL(Origin,#1)(NE,SE) \Move(0,\Val\:Vd)
\else
\Move(0,-10) \MarkLoc(#1)
\MoveToLL(Origin,#1)(SW,SE) \Move(\Val\:Vd,0)
\fi
\let\du=\:SvDu
\ifx\:AddBarDepth\:AddBarDp \:HflipMY\Move(-\:HBarx,\:VBarx) \fi
\let\du=\relax \MarkLoc(#1)}
\Define\BarGrid(3){
\def\:BarGrdDist{#1} \def\:BarGrdUnder{#2}
\def\:BarGrdOver{#3}}
\BarChartSpec(V,2.5,7.5)(0)\BarGrid(0,0,0)
\Define\:slotgrdln{
\:HflipMY\Move(0,\Val\:Vc) \:GrdLn
\:HflipMY\Move(10,0) \:Vc=0; }
\fi
\:CheckOption{diagram}\if:option
\edef\AlDraTex{spread,grid,tree,\AlDraTex}
\else \:CheckOption{spread}\if:option
\edef\AlDraTex{diagram,\AlDraTex}
\else \:CheckOption{grid}\if:option
\edef\AlDraTex{diagram,\AlDraTex}
\else \:CheckOption{tree}\if:option
\edef\AlDraTex{diagram,\AlDraTex}
\fi\fi\fi\fi
\:CheckOption{xy} \if:option \:circletrue \fi
\:CheckOption{diagram}\if:option \:circletrue \fi
\if:circle \Define\ArrowHeads(1){
\Define\:FrArrowHead{}
\Define\:BkArrowHead{}
\Define\:FrCrvArrowHead{}
\Define\:BkCrvArrowHead{}
\IF \GtInt(#1,0) \THEN
\Define\:FrArrowHead{\:ArrowHead(bk:,fr:)}
\Define\:FrCrvArrowHead{
\DSeg\RotateTo(2:,2':)
\MoveToLoc(2:) \MoveF(\:ArrowLength pt\du)
\MoveF(0.1 pt\du) \MarkLoc(1'':) \MarkLoc(2'':)
\MoveToLoc(2':) \MoveF(\:ArrowLength pt\du)
\MoveF(0.1 pt\du) \MarkLoc(1'':) \MarkLoc(2':)
\:ArrowHead(2'':,2:) }
\FI
\IF \GtInt(#1,1) \THEN
\Define\:BkArrowHead{\:ArrowHead(fr:,bk:)}
\Define\:BkCrvArrowHead{
\DSeg\RotateTo(1:,1':)
\MoveToLoc(1:) \MoveF(\:ArrowLength pt\du)
\MoveF(0.1 pt\du) \MarkLoc(1'':) \MarkLoc(1'':)
\MoveToLoc(1':) \MoveF(\:ArrowLength pt\du)
\MoveF(0.1 pt\du) \MarkLoc(1'':) \MarkLoc(1':)
\:ArrowHead(1'':,1:) }
\FI }
\Define\:ArrowHead(2){
\LSeg\Va(#1,#2)
\IF \LtDec(\Va,\:ArrowLength) \THEN \:aldwarn0{}
\ELSE \MoveToLoc(#2) \DSeg\RotateTo(#1,#2)
\MoveF(-\:ArrowLength pt\du)
{ \Ragged(\:ArrowRagged) \Rotate(90) \Va=\:ArrowWidth;
\Va/2; \MoveF(\Val\Va pt\du) \MarkLoc(#2')
\Va*2; \MoveF(-\Val\Va pt\du) \MarkLoc(#2'')
\:head(#2) } \MarkLoc(#2) \FI }
\Define\ArrowSpec(1){\:ArSp(#1,)}
\Define\:ArSp(2){
\IF \EqText(V,#1) \THEN \Define\:head(1){
{ \Va/2; \MoveF(\Val\Va pt\du) \MarkLoc(a:)
\CSeg\:EdgeLine(a:,##1) }
\MarkLoc(a:) \CSeg\:EdgeLine(a:,##1)
\MarkLoc(a:) \CSeg\:EdgeLine(a:,##1') } \FI
\IF \EqText(H,#1) \THEN \Define\:head(1){
\MarkLoc(a:) \CSeg\:EdgeLine(a:,##1)
\MarkLoc(a:) \CSeg\:EdgeLine(a:,##1')
\MarkLoc(a:) \CSeg\:EdgeLine(a:,##1'')} \FI
\IF \EqText(F,#1) \THEN \Define\:head(1){\PaintQuad(##1,##1,##1',##1'')}
\FI
\IF \EqText(,#2) \THEN\ELSE \:ArrowHeadSpec(#2) \FI }
\Define\:ArrowHeadSpec(4){ \:edef\:ArrowLength{#1}
\:edef\:ArrowWidth{#2} \:edef\:ArrowRagged{#3}}
\ArrowHeads(0) \ArrowSpec(F,10,6,5) \:circlefalse \fi
\:CheckOption{diagram}\if:option
\Define\NewNode(2){
\Define#1(1){
\Define\:FrameType{\csname \string#1:Frame\endcsname}
\Define\:NodeName{##1}
\Indirect\Define<##1.mvto>{#2} \:NodeBody}
\expandafter\Define\csname \string#1:Frame\endcsname}
\Define\TextNode{
\TextPar\Define\:NodeBody(1){
\Object\:tmp{
\:NodeContent(--##1--)
\:FrameType }
\:SetNode }
\TextPar\Define\:NodeContent}
\Define\PictNode{
\Define\:NodeBody(1){
\Object\:tmp{ \Object\:temp{\:NodeContent(##1)}
\:temp \:FrameType }
\:SetNode }
\TextPar\Define\:NodeContent}
\TextNode(1){\Text(--#1--)}\Define\:SetNode{\:SetNodeA }
\Define\:SetNodeA{ \:tmp
\MarkLoc(a:) \MoveToExit(0,0) \MarkLoc(\:NodeName)
\MoveToExit(1,1) \MarkLoc(\:NodeName;:11)
\MoveToLoc(a:) \:circlefalse }
\Define\DefNode{
\Define\:SetNode{
\Indirect\let<\:NodeName :call> = \:tmp
\def\:temp{\Indirect\let<\:NodeName :bdy> = }
\expandafter\:temp \csname \string \:tmp .\endcsname
\Indirect\let<\:NodeName :frm> = \:FrameType
\Indirect\let<\:NodeName :cnt> = \:NodeContent
\Indirect\edef<\:NodeName :crc>{
\if:circle \noexpand\:circletrue
\else \noexpand\:circlefalse \fi}
\FigSize\Va\Vb{ \:SetNodeA } \Va/2; \Vb/2;
\MarkLoc(\:NodeName) \Move(\Val\Va,\Val\Vb)
\MarkLoc(\:NodeName;:11) \MoveToLoc(\:NodeName)
\:circlefalse
\Define\:SetNode{\:SetNodeA } }
\:DefNode
}
\def\:DefNode#1(#2){#1(#2)}
\Define\PutNode(1){
\def\:NodeName{#1}
\Indirect{ \expandafter \let \csname \string \:tmp .\endcsname = }
<#1:bdy>
\Indirect<#1:crc>
\Indirect{ \let\:FrameType = }<#1:frm>
\Indirect{ \let\:NodeContent = }<#1:cnt>
\Indirect{ \let\:tmp = }<#1:call>
\ifx\:tmp\relax \:aldwarn{10}{#1}\fi
\:SetNodeA
\Indirect\let<\:NodeName :call> = \:undef
\Indirect\let<\:NodeName :cnt> = \:undef
\Indirect\let<\:NodeName :frm> = \:undef
\Indirect\let<\:NodeName :bdy> = \:undef
\Indirect\let<\:NodeName :crc> = \:undef
}
\Define\ZeroNodesDim{
\def\MaxX{0} \def\MaxY{0}
\def\WidthX{0} \def\WidthY{0} }
\Define\AddNodeDim(1){
\CSeg\:GetXY(#1,#1;:11)
\IF \GtDec(\Va,\MaxX) \THEN \edef\MaxX{\Val\Va} \FI
\Va*2; \edef\Widthx{\Val\Va} \Va+\WidthX; \edef\WidthX{\Val\Va}
\IF \GtDec(\Vb,\MaxY) \THEN \edef\MaxY{\Val\Vb} \FI
\Vb*2; \edef\Widthy{\Val\Vb} \Vb+\WidthY; \edef\WidthY{\Val\Vb} }
\Define\NewCIRCNode(3){
\ifx \CIRC\:undefined \:aldwarn9\relax
\font\CIRC=lcircle10\space scaled\magstep5
\fi
\Define\:Temp(2){
\IF \EqText(,#3) \THEN
\NewNode(#1,\MoveToOval){
\Text(--\hbox to##1pt{%
\vrule height ##2pt depth ##2pt%
width0pt%
\hss\hbox to##2pt{%
\CIRC \char #2\hss}}--)}
\ELSE
\NewNode(#1,\MoveToOval){
\Text(--\hbox to##1pt{%
\hss\hbox to##2pt{%
\CIRC \char #3\hss}}--)
\Text(--\hbox to##1pt{%
\vrule height ##2pt depth ##2pt%
width0pt%
\hss\hbox to##2pt{%
\CIRC \char #2\hss}}--)}
\FI }
\setbox\:box=\hbox{\CIRC \char #2}
\IF \EqText(,#3) \ELSE \IF \GtInt(#3,#2) \THEN
\setbox\:box=\hbox{\CIRC \char #3}
\FI \FI
\edef\:tempa{\noexpand\Va=\:Cons\wd\:box;}
\:tempa \Vb=\Va; \Vb/2;
\edef\:tempa{\noexpand\:Temp(\Val\Va,\Val\Vb)}
\:tempa }
\Define\NodeMargin(2){\def\:XNodeMargin{#1}\def\:YNodeMargin{#2}}
\NodeMargin(2,2) \Define\GetNodeSize{
\MoveToExit(1,1)
\Move(\:XNodeMargin pt\du,\:YNodeMargin pt\du)
\MarkLoc(:11) \MoveToExit(0,0) \MarkLoc(:00)
\CSeg\:GetXY(:00,:11)}
\Define\SetMinNodeSize{
\IF \LtDec(\Va,\:NodeX) \THEN \Va=\:NodeX; \FI
\IF \LtDec(\Vb,\:NodeY) \THEN \Vb=\:NodeY; \FI }
\Define\MinNodeSize(1){\:MinNodeSize(#1,)}
\Define\:MinNodeSize(2){
\IF \EqText(,#2) \THEN
\edef\:Temp{\noexpand\:MinNdSz(\csname :#1::\endcsname,)}
\ELSE
\def\:Temp{\:MinNdSz(#1,#2)}
\FI \:Temp}
\Define\:MinNdSz(3){
\Va=#1; \Va/2; \edef\:NodeX{\Val\Va}
\Va=#2; \Va/2; \edef\:NodeY{\Val\Va} }
\Define\SaveNodeSize(1){ \CSeg\:GetXY(#1,#1;:11)
\Va*2; \Vb*2;
\expandafter\edef\csname :#1::\endcsname{\Val\Va,\Val\Vb} }
\Define\:Temp{
\def\SaveDrawSize(##1)##2{
\FigSize\Va\Vb{##2}
\expandafter\edef\csname :##1::\endcsname{\Val\Va,\Val\Vb} }
}\:Temp
\MinNodeSize(0,0)\def\:NodeLine{\Line} \def\:NodeArc{\DrawOvalArc}
\Define\SRectNodeSpec(1){\:edef\:ShadowSize{#1}}
\Define\VRectNodeSpec(1){\:edef\:Vdepth{#1}}
\VRectNodeSpec(4) \SRectNodeSpec(3) \def\NodeIx#1#2{#1=\:C;#2=\:Ca;}
\NewNode(\RectNode,\MoveToRect){ \:RectShape }
\NewNode(\VRectNode,\:MoveToVRect){ \:RectShape
\:Vc=\:Vdepth; \:Vc/2; \:NodeLine(\:Vdepth,-\Val\:Vc)
\:NodeLine(\Val\Va,0) {\:NodeLine(-\:Vdepth,\Val\:Vc)}
\:NodeLine(0,\Val\Vb) \:NodeLine(-\:Vdepth,\Val\:Vc) }
\NewNode(\SRectNode,\MoveToRect){ \Units(1pt,1pt)
\GetNodeSize \SetMinNodeSize
\Move(-\Val\Va,-\Val\Vb) \Va*2; \Vb*2;
\:NodeLine(0,\Val\Vb) \:NodeLine(\Val\Va,0)
\PenSize(\:ShadowSize pt)
\:Ve=\:ShadowSize; \:Ve/2; \Va+\:ShadowSize;
\Move(\Val\:Ve,0) \Line(0,-\Val\Vb)
\Move(\Val\:Ve,-\Val\:Ve) \Line(-\Val\Va,0) }
\Define\:RectShape{ \Units(1pt,1pt)
\GetNodeSize \SetMinNodeSize
\Move(-\Val\Va,-\Val\Vb) \Va*2; \Vb*2;
\:NodeLine(0,\Val\Vb) \:NodeLine(\Val\Va,0)
\:NodeLine(0,-\Val\Vb) \:NodeLine(-\Val\Va,0) }
\Define\MoveToRect(3){
\CSeg[#2]\:GetX(#1,#1;:11)
\CSeg[#3]\:GetY(#1,#1;:11) \MoveToLoc(#1)
\Move(\Val\Va pt\du,\Val\Vb pt\du)}
\NewNode(\RRectNode,\:MoveToRRect){ \Units(1pt,1pt)
\GetNodeSize \SetMinNodeSize
\Va+3; \Move(-\Val\Va,-\Val\Vb) \Va*2; \Vb*2;
\:Vc=\Va; \:Vc/4; \:Vd=\Vb; \:Vd/4;
\IF \GtDec(\:Vc,9) \THEN \:Vc=9; \FI
\IF \GtDec(\:Vd,9) \THEN \:Vd=9; \FI
\Va-\:Vc; \Va-\:Vc; \Vb-\:Vd; \Vb-\:Vd;
{ \Move (\Val\:Vc,\Val\:Vd)
\:NodeArc(\Val\:Vc,\Val\:Vd)(180,225) }
\Move(0,\Val\:Vd) \:NodeLine(0,\Val\Vb) \Move(\Val\:Vc,0)
\:NodeArc(\Val\:Vc,\Val\:Vd)(90,180)
\Move(0,\Val\:Vd) \:NodeLine(\Val\Va,0) \Move(0,-\Val\:Vd)
\:NodeArc(\Val\:Vc,\Val\:Vd)(45,90)
\:NodeArc(\Val\:Vc,\Val\:Vd)(0,45)
\Move(\Val\:Vc,0) \:NodeLine(0,-\Val\Vb) \Move(-\Val\:Vc,0)
\:NodeArc(\Val\:Vc,\Val\:Vd)(270,360)
\Move(0,-\Val\:Vd) \:NodeLine(-\Val\Va,0) \Move(0,\Val\:Vd)
\:NodeArc(\Val\:Vc,\Val\:Vd)(225,270)
}\NewNode(\ORectNode,\:MoveToORect){ \Units(1pt,1pt)
\GetNodeSize \SetMinNodeSize \Va-2;
{ \Move(\Val\Va,0) \:NodeArc(9,\Val\Vb)(-90,90) }
{ \Move(-\Val\Va,0) \:NodeArc(9,\Val\Vb)(90,-90) }
\Move(-\Val\Va,\Val\Vb) \Va*2; \Vb*2;
\:NodeLine(\Val\Va,0)
{ \Move(0,-\Val\Vb) \:NodeLine(-\Val\Va,0)} }
\NewNode(\DRectNode,\:MoveToDRect){ \Units(1pt,1pt)
\GetNodeSize \SetMinNodeSize
{ \Move(\Val\Va,0) \Move(9,0)
{\:NodeLine(-9,\Val\Vb)}
{\:NodeLine(-9,-\Val\Vb)} }
{ \Move(-\Val\Va,0) \Move(-9,0) {\:NodeLine(9,\Val\Vb)}
{\:NodeLine(9,-\Val\Vb)} }
\Move(\Val\Va,\Val\Vb) \Va*2;
\:NodeLine(-\Val\Va,0) { \Move(0,-\Val\Vb)
\Move(0,-\Val\Vb)
\:NodeLine(\Val\Va,0)} }\Define\CircleNode{ \:circletrue \OvalNode}
\NewNode(\OvalNode,\MoveToOval){
\Units(1pt,1pt) \GetNodeSize \Va/0.707; \Vb/0.707;
\SetMinNodeSize
\if:circle
\IF \LtDec(\Va,\Vb) \THEN \Va=\Vb;
\ELSE \IF \LtDec(\Vb,\Va) \THEN \Vb=\Va;
\FI \FI
\fi \:NodeArc(\Val\Va,\Val\Vb) (0,360) }
\NewNode(\DiamondNode,\:MoveToDiamond){
\Units(1pt,1pt) \GetNodeSize
\Vb*1.66; \Va+\Vb; \Vb=\Va; \Vb*0.66; \SetMinNodeSize
\Move(0,\Val\Vb) \:NodeLine(-\Val\Va,-\Val\Vb)
\:NodeLine(\Val\Va,-\Val\Vb)
\:NodeLine(\Val\Va,\Val\Vb)
\:NodeLine(-\Val\Va,\Val\Vb)}\NewNode(\Node,\MoveToRect){ \:NoShape }
\Define\:NoShape{
\GetNodeSize \SetMinNodeSize
\MoveToExit(0,0) \EntryExit(0,0,0,0) \Va*2; \Vb*2;
\Text(--\vbox to\Val\Vb pt{\hsize=\Val\Va pt
\leavevmode\hfil\vfil}--)}\Define\FcNode(1){
\edef\:Temp{\noexpand\Indirect\let<#1.mvto>=\noexpand\MoveToRect}
\:Temp \MarkLoc(#1) \Move(0.01pt\du,0.01pt\du)
\MarkLoc(#1;:11) \MoveToLoc(#1) }
\Define\MoveToNodeDir(1){\edef\:Temp{\noexpand\::MvToExit(#1)}\:Temp}
\Define\::MvToExit(2){
\DSeg\:Vc(#1,#2) \let\:Temp=\relax
\IF \EqDec(\:Vc,0) \THEN \MoveToNode(#1,1,0)
\ELSE \IF \EqDec(\:Vc,90) \THEN \MoveToNode(#1,0,1)
\ELSE \IF \EqDec(\:Vc,180)\THEN \MoveToNode(#1,-1,0)
\ELSE \IF \EqDec(\:Vc,270)\THEN \MoveToNode(#1,0,-1)
\ELSE \DSeg\Va(#1,#1;:11)
\IF \LtDec(\:Vc,\Va) \THEN \:PreSrchExit(#1,1,\Val\:Ve,0,1)
\ELSE \Vb=180; \Vb-\Va;
\IF \LtDec(\:Vc,\Vb) \THEN \:PreSrchExit(#1,\Val\:Ve,1,1,-1)
\ELSE \Vb=180; \Vb+\Va;
\IF \LtDec(\:Vc,\Vb) \THEN \:PreSrchExit(#1,-1,\Val\:Ve,1,-1)
\ELSE \Vb=360; \Vb-\Va;
\IF \LtDec(\:Vc,\Vb) \THEN\:PreSrchExit(#1,\Val\:Ve,-1,-1,1)
\ELSE \:PreSrchExit(#1,1,\Val\:Ve,-1,0)
\FI\FI\FI\FI \FI\FI\FI\FI \:Temp }\Define\:PreSrchExit(5){
\def\:Temp{\def\:tempa{(#1,#2,#3}\:SearchExit(#1,#4,#5)} }
\Define\:SearchExit(3){
\:Ve=#3; \:Ve-#2; \IF \LtDec(\:Ve,0) \THEN \:Ve=-\:Ve; \FI
\IF \LtDec(\:Ve,0.01) \THEN \let\:Temp=\relax
\ELSE
\:Ve=#2; \:Ve+#3; \:Ve/2; \edef\:tempb{\Val\:Ve}
\expandafter\MoveToNode\:tempa) \MarkLoc(x:)
\DSeg\:Vd(#1,x:)
\IF \GtDec(\:Vd,\:Vc) \THEN
\edef\:Temp{\noexpand\:SearchExit(#1,#2,\:tempb)}
\ELSE
\edef\:Temp{\noexpand\:SearchExit(#1,\:tempb,#3)}
\FI \FI \:Temp }\Define\TraceDiagramOn{\def\:TrcDiag##1{##1}}
\Define\TraceDiagramOff{\def\:TrcDiag##1{}}
\TraceDiagramOff \Define\TagNode(1){{\:TagNode(#1)}}
\Define\::TagNode(1){ \let&=\relax
\xdef\:tgnd{\:tgnd,\Val\:C..\Val\:Ca}}
\Define\:bgDiTags{
\Define\:TagNode(1){}
\Define\:EdgeNode(1){}
\let\:svTgNd=\:tgnd \gdef\:tgnd{}
\let\:svEdNd=\:ednd \gdef\:ednd{} }
\Define\:endDiTags{
\MarkLoc(o:)
\ifx\:tgnd\empty \else
\Table\:Temp{\:tgnd}
\:Temp(1,999){\:SetNdTg} \fi
\global\let\:tgnd=\:svTgNd
\ifx\:ednd\empty \else
\Table\:Temp{\:ednd}
\:C=0;
\:Temp(1,999){\::CurrEdge} \fi
\global\let\:ednd=\:svEdNd
\MoveToLoc(o:)}
\Define\:SetNdTg(2){
\Indirect{ \Indirect\let<#1.mvto>= }<#2.mvto>
\MoveToLoc(#2) \MarkLoc(#1)
\MoveToLoc(#2;:11) \MarkLoc(#1;:11) }
\fi
\:CheckOption{diagram}\if:option
\Define\MoveToNode(3){
\XSaveUnits \Units(1pt,1pt)
\edef\:Temp{\noexpand\Indirect<#1.mvto>(#1,#2,#3)}
\:Temp \XRecallUnits }\Define\:MoveToVRect(3){
\MoveToRect(#1,#2,#3) \:Ve=\:Vdepth; \:Ve/2;
\:Vd=\:Ve; \:Vd/2;
\IF \GtDec(#2,0.98) \THEN \Move(-\Val\:Ve,0)
\IF \GtDec(#3,0.98) \THEN \Move(0,-\Val\:Vd)
\FI \FI
\IF \LtDec(#3,-0.98) \THEN \Move(0,\Val\:Vd)
\IF \LtDec(#2,-0.98) \THEN \Move(\Val\:Ve,0)
\FI \FI} \Define\:MoveToRRect(3){ \MoveToRect(#1,#2,#3)
\Va=#2; \IF \LtDec(\Va,0) \THEN \Va=-\Va; \FI
\Vb=#3; \IF \LtDec(\Vb,0) \THEN \Vb=-\Vb; \FI
\IF \GtDec(\Va,1) \THEN \Va=1; \FI
\IF \GtDec(\Vb,1) \THEN \Vb=1; \FI
\IF \LtDec(\Va,0.9) \THEN \Va=0; \Vb=0;
\ELSE \IF \LtDec(\Vb,0.9) \THEN \Va=0; \Vb=0;
\ELSE \Va-1; \Va=-\Va; \Vb-1; \Vb=-\Vb; \FI \FI
\IF \GtDec(#2,0) \THEN \Va=-\Va; \FI
\IF \GtDec(#3,0) \THEN \Vb=-\Vb; \FI
\Va*30; \Vb*30;
\Move(\Val\Va pt\du,\Val\Vb pt\du) }\Define\:MoveToORect(3){
\MoveToRect(#1,0,0) \MarkLoc(o:mv)
\MoveToRect(#1,#2,#3) \MarkLoc(x:mv) \MarkLoc(y:mv)
\CSeg\:GetX(o:mv,x:mv)
\MoveToRect(#1,1,0) \MarkLoc(a:mv) \LSeg\:Ve(a:mv,x:mv)
\IF \LtDec(\:Ve,0.1) \THEN \Move(9pt\du,0)
\ELSE \DSeg\:Ve(a:mv,x:mv)
\IF \LtDec(\:Ve,90) \THEN
\MoveToRect(#1,1,1) \MarkLoc(1:mv)
\DSeg\:Vd(o:mv,x:mv) \DSeg\:Ve(o:mv,1:mv)
\:Vd/\:Ve; \:Vd*90; \RotateTo(\Val\:Vd) \MoveToLoc(a:mv)
\MoveFToOval(9 pt\du,\Val\Vb pt\du) \MarkLoc(y:mv)
\ELSE \IF \GtDec(\:Ve,270)\THEN
\MoveToRect(#1,1,-1) \MarkLoc(1:mv)
\DSeg\:Vd(o:mv,x:mv) \DSeg\:Ve(o:mv,1:mv)
\:Vd-360; \:Ve-360; \:Vd/\:Ve;
\:Vd*90; \RotateTo(-\Val\:Vd) \MoveToLoc(a:mv)
\MoveFToOval(9 pt\du,\Val\Vb pt\du) \MarkLoc(y:mv)
\FI \FI \FI
\MoveToRect(#1,-1,0) \MarkLoc(a:mv) \LSeg\:Ve(a:mv,x:mv)
\IF \LtDec(\:Ve,0.1) \THEN \Move(-9pt\du,0)
\ELSE \DSeg\:Ve(a:mv,x:mv)
\IF \GtDec(\:Ve,90) \THEN
\IF \LtDec(\:Ve,180) \THEN
\MoveToRect(#1,-1,1) \MarkLoc(1:mv)
\DSeg\:Vd(o:mv,x:mv) \DSeg\:Ve(o:mv,1:mv)
\:Vd-180; \:Ve-180; \:Vd/\:Ve;
\:Vd*90; \:Vd-180; \:Vd=-\:Vd;
\RotateTo(\Val\:Vd) \MoveToLoc(a:mv)
\MoveFToOval(9 pt\du,\Val\Vb pt\du) \MarkLoc(y:mv)
\ELSE\IF \LtDec(\:Ve,180) \THEN
\MoveToRect(#1,-1,-1) \MarkLoc(1:mv)
\DSeg\:Vd(o:mv,x:mv) \DSeg\:Ve(o:mv,1:mv)
\:Vd-180; \:Ve-180; \:Vd/\:Ve;
\:Vd*90; \:Vd+180; \:Vd=-\:Vd;
\RotateTo(\Val\:Vd) \MoveToLoc(a:mv)
\MoveFToOval(9 pt\du,\Val\Vb pt\du) \MarkLoc(y:mv)
\FI \FI \FI \FI \MoveToLoc(y:mv) }\Define\:MoveToDRect(3){ \XSaveUnits
\MoveToRect(#1,0,0) \MarkLoc(o:mv)
\MoveToRect(#1,#2,#3) \MarkLoc(x:mv) \MarkLoc(y:mv)
\CSeg\:GetX(o:mv,x:mv)
\MoveToRect(#1,1,0) \MarkLoc(a:mv) \LSeg\:Ve(a:mv,x:mv)
\IF \LtDec(\:Ve,0.1) \THEN \Move(9pt\du,0)
\ELSE \DSeg\:Ve(a:mv,x:mv)
\IF \LtDec(\:Ve,90) \THEN
\Move(0,\Val\Vb) \MarkLoc(.:)
\Move(9,-\Val\Vb) \MarkLoc(..:)
\MoveToLL(.:,..:) \MarkLoc(y:mv)
\ELSE \IF \GtDec(\:Ve,270) \THEN
\Move(0,-\Val\Vb) \MarkLoc(.:)
\Move(9,\Val\Vb) \MarkLoc(..:)
\MoveToLL(.:,..:) \MarkLoc(y:mv)
\FI \FI \FI
\MoveToRect(#1,-1,0) \MarkLoc(a:mv) \LSeg\:Ve(a:mv,x:mv)
\IF \LtDec(\:Ve,0.1) \THEN \Move(-9pt\du,0)
\ELSE \DSeg\:Ve(a:mv,x:mv)
\IF \GtDec(\:Ve,90) \THEN
\IF \LtDec(\:Ve,180)\THEN
\Move(0,\Val\Vb) \MarkLoc(.:)
\Move(-9,-\Val\Vb) \MarkLoc(..:)
\MoveToLL(.:,..:) \MarkLoc(y:mv)
\ELSE \IF \LtDec(\:Ve,270)\THEN
\Move(0,-\Val\Vb) \MarkLoc(.:)
\Move(-9,\Val\Vb) \MarkLoc(..:)
\MoveToLL(.:,..:) \MarkLoc(y:mv)
\FI \FI \FI \FI
\XRecallUnits \MoveToLoc(y:mv) }\Define\MoveToOval(3){
\CSeg[#2]\:GetX(#1,#1;:11)
\CSeg[#3]\:GetY(#1,#1;:11)
\MoveTo(0,0) \MarkLoc(00:)
\MoveTo(\Val\Va pt\du,\Val\Vb pt\du) \MarkLoc(11:)
\MoveToLoc(#1) \LSeg\Va(00:,11:)
\IF \GtDec(\Va,0.001) \THEN
\DSeg\RotateTo(00:,11:)
\CSeg\MoveFToOval(#1,#1;:11)
\FI}\Define\:MoveToDiamond(3){
\CSeg\:GetXY(#1,#1;:11)
\IF \LtDec(#2,0) \THEN \Va=-\Va; \FI
\IF \LtDec(#3,0) \THEN \Vb=-\Vb; \FI
\MoveToLoc(#1) \Move(\Val\Va pt\du,0) \MarkLoc(.:)
\MoveToLoc(#1) \Move(0,\Val\Vb pt\du) \MarkLoc(..:)
\CSeg\:GetXY(#1,#1;:11) \Va*#2; \Vb*#3;
\MoveToLoc(#1) \Move(\Val\Va pt\du,\Val\Vb pt\du)
\MarkLoc(..:..) \LSeg\Va(#1,..:..)
\IF \GtDec(\Va,0) \THEN \MoveToLL(.:,..:)(#1,..:..) \FI }
\fi
\:CheckOption{diagram}\if:option
\Define\EdgeSpec(1){\:EdgeSpec#1....//}
\def\:EdgeSpec#1#2#3#4.//{\:EdSp(#1)\:EdSp(#2)\:EdSp(#3)}
\Define\:EdSp(1){
\IF \EqText(L,#1) \THEN
\def\:EdgeLine{\Line} \def\:EdgeCurve{\Curve}
\FI
\IF \EqText(D,#1) \THEN
\let\:EdgeLine=\:DotLine \let\:EdgeCurve=\:DotCurve
\FI
\IF \EqText(C,#1) \THEN
\def\:LocByAddr##1(##2){ \MoveTo(##2)
\MarkLoc(;:) ##1(;:)}
\FI
\IF \EqText(T,#1) \THEN
\let\:LocByAddr=\relax
\FI
\IF \EqText(R,#1) \THEN
\Define\:EdgeCorner{
\MoveToLoc(fr:) \MarkLoc(nxt':) \MarkLoc(fr':)
\:SetEndCorner(fr:,bk:) \:SetEndCorner(nxt':,nxt:)
\:EdgeCurve(fr:,fr:1,nxt':1,nxt':) }
\FI
\IF \EqText(S,#1) \THEN
\Define\:EdgeCorner{\MoveToLoc(fr:) \MarkLoc(nxt':)}
\FI}
\Define\:DotLine(1){
{ \MarkLoc(a:) \Move(#1) \MarkLoc(b:)
\DSeg\RotateTo(a:,b:) \LineF(-\:thickness \du)
\MoveToLoc(a:) \LineF(\:thickness\du)}
\DoLine(#1)(3pt\du){
\Units(1pt,1pt) \MoveF(-0.5) \LineF(1) }}
\Define\:DotCurve(4){
{ \DSeg\RotateTo(#1,#2) \MoveToLoc(#1)
\divide\:thickness by2 \LineF(\:thickness \du) }
{ \DSeg\RotateTo(#4,#3) \MoveToLoc(#4)
\divide\:thickness by2 \LineF(\:thickness \du) }
\DoCurve(#1,#2,#3,#4)(3pt\du){
\Units(1pt,1pt) \MoveF(-0.5) \LineF(1) } }
\Define\EdgeAt(6){
\MoveToNode(#1,#2,#3) \MarkLoc(EdgeBack)
\Table\:EdgePath{#6}
\:EdgePath(0,0){\:GetEdgeFront}
\MoveToNode(#4,#5,\:EdgeFront) \:InsertEdge(#6)}\Define\Edge(2){
\Table\:EdgePath{#1}
\:C=-1; \:EdgePath(0,99){\:Count}
\IF \EqDec(\:C,1) \THEN
\MoveToNodeDir(#1,#2) \MarkLoc(EdgeBack)
\MoveToNodeDir(#2,#1)
\ELSE \:EdgePath(2,2){\:LocByAddr\MoveToLoc} \MarkLoc(:)
\MoveToNodeDir(#1,:) \MarkLoc(EdgeBack)
\Define\:Temp(1){\def\:Temp{##1}}
\:EdgePath(1,1){\:Temp}
\:EdgePath(\Val\:C,\Val\:C){\:LocByAddr\MoveToLoc}
\MarkLoc(EdgeFront) \MoveToNodeDir(\:Temp,EdgeFront) \FI
\Table\:EdgePath{#2} \:InsertEdge(#2) }\Define\EdgeTo(4){
\Table\:EdgePath{#4}
\:C=-1; \:EdgePath(0,1){\:Count}
\IF \EqDec(\:C,0) \THEN
\MoveToNode(#2,#3,#4) \MarkLoc(EdgeFront)
\MoveToNodeDir(#1,EdgeFront) \MarkLoc(EdgeBack)
\MoveToLoc(EdgeFront)
\ELSE \:EdgePath(1,1){\:LocByAddr\MoveToLoc} \MarkLoc(:)
\MoveToNodeDir(#1,:) \MarkLoc(EdgeBack)
\:EdgePath(0,0){\:GetEdgeFront}
\MoveToNode(#2,#3,\:EdgeFront) \FI
\:InsertEdge(#4) }\Define\EdgeFrom(4){
\Table\:EdgePath{#1}
\:C=-1; \:EdgePath(0,99){\:Count}
\MoveToNode(#1,#2,#3) \MarkLoc(EdgeBack)
\IF \EqDec(\:C,1) \THEN
\MoveToNodeDir(#4,EdgeBack)
\ELSE \Define\:Temp(1){\def\:Temp{##1}}
\:EdgePath(1,1){\:Temp}
\:EdgePath(\Val\:C,\Val\:C){\:LocByAddr\MoveToLoc}
\MarkLoc(EdgeFront) \MoveToNodeDir(\:Temp,EdgeFront) \FI
\Table\:EdgePath{#4} \:InsertEdge(#4) }\Define\:InsertEdge(1){
\MarkLoc(EdgeFront) \:C=-1; \:EdgePath(0,2){\:Count}
\IF \EqInt(\:C,0) \THEN
\:OneSegmentEdge
\ELSE
\Define\:Temp(1){
\:LocByAddr\MoveToLoc(##1)\MarkLoc(temp:)}
\:EdgePath(1,1){\:Temp}
\MoveToLoc(EdgeBack) \MarkLoc(bk:)
\MoveToLoc(temp:) \MarkLoc(fr:) \:BkArrowHead
\IF \GtInt(\:C,1) \THEN
\def\:temp##1&##2(&){\Table\:EdgePath{##2}}
\:temp#1(&) \:EdgePath(1,99){\:InterEdge}
\FI
\MoveToLoc(EdgeFront) \MarkLoc(nxt:)
\:EdgeCorner \:EdgeSegment
\MoveToLoc(nxt':) \MarkLoc(bk:)
\MoveToLoc(nxt:) \MarkLoc(fr:)
\:FrArrowHead \:EdgeSegment
\FI \def\EdgeLabel{\:PutLabel\:LineLbl} }\Define\:OneSegmentEdge{
\MoveToLoc(EdgeBack) \MarkLoc(bk:)
\MoveToLoc(EdgeFront) \MarkLoc(fr:)
\:BkArrowHead \:FrArrowHead \:EdgeSegment }\Define\:InterEdge(1){
\:LocByAddr\MoveToLoc(#1) \MarkLoc(nxt:)
\:EdgeCorner \:EdgeSegment
\MoveToLoc(nxt':) \MarkLoc(bk:)
\MoveToLoc(nxt:) \MarkLoc(fr:)}
\Define\:EdgeSegment{\MoveToLoc(bk:) \CSeg\:EdgeLine(bk:,fr:)}
\Define\:SetEndCorner(2){ \MoveToLoc(fr':)
\CSeg[0.5]\Move(fr':,#2) \MarkLoc(#1) \LSeg\Va(fr':,#1)
\IF \GtDec(\Val\Va,10) \THEN
\MoveToLoc(fr':) \DSeg\RotateTo(fr':,#2)
\MoveF(10) \MarkLoc(#1)
\FI
\MoveToLoc(fr':) \CSeg[0.5]\Move(fr':,#1) \MarkLoc(#1 1)}
\Define\CurvedEdgeAt(6){
\MoveToNode(#1,#2,#3) \MarkLoc(1:) \MarkLoc(EdgeBack)
\MoveToNode(#4,#5,#6) \MarkLoc(2:) \MarkLoc(EdgeFront)
\:CurvedEdgeAtDir}
\Define\:CurvedEdgeAtDir(4){
\RotateTo(#3) \LSeg[#4]\MoveF(1:,2:)
\MarkLoc(2':) \MoveToLoc(1:)
\RotateTo(#1) \LSeg[#2]\MoveF(1:,2:)
\MarkLoc(1':) \:InCrvEd }
\Define\CurvedEdge(2){
\DSeg\RotateTo(#1,#2) \Rotate(\:StartEdgeDir)
\MoveToLoc(#1) \MoveF(50) \MarkLoc(1:)
\MoveToNodeDir(#1,1:) \MarkLoc(EdgeBack)
\MarkLoc(1:) \LSeg[\:StartEdgeTension]\MoveF(#2,#1)
\MarkLoc(1':)
\DSeg\RotateTo(#2,#1) \Rotate(\:EndEdgeDir)
\MoveToLoc(#2) \MoveF(50) \MarkLoc(2:)
\MoveToNodeDir(#2,2:) \MarkLoc(EdgeFront)
\MarkLoc(2:) \LSeg[\:EndEdgeTension]\MoveF(#2,#1)
\MarkLoc(2':) \:InCrvEd }\Define\:InCrvEd{
\:BkCrvArrowHead\:FrCrvArrowHead
\MoveToLoc(1:) \MarkLoc(EdgeBack')
\MoveToLoc(1':) \MarkLoc(EdgeBack'')
\MoveToLoc(2':) \MarkLoc(EdgeFront'')
\MoveToLoc(2:) \MarkLoc(EdgeFront')
\:EdgeCurve(1:,1':,2':,2:) \def\EdgeLabel{\:PutLabel\:CurveLbl} }
\Define\CurvedEdgeSpec(4){
\:edef\:StartEdgeDir{#1} \:edef\:StartEdgeTension{#2}
\:edef\:EndEdgeDir{#3} \:edef\:EndEdgeTension{#4} }
\CurvedEdgeSpec(10,0.2,-10,0.2)\Define\HVEdge(2){ \:XYEdge(#1,#2,1,) }
\Define\VHEdge(2){ \:XYEdge(#1,#2,,1) } \Define\:XYEdge(4){
\MoveToNode(#1,0,0) \MarkLoc(1:) \Move(#30,#40) \MarkLoc(1':)
\MoveToNode(#2,0,0) \MarkLoc(2:) \Move(#40,#30) \MarkLoc(2':)
\MoveToLL(1:,1':)(2:,2':)
\MarkLoc(x:) \MarkLoc(bk:)
\CSeg\:GetExit(1:,x:) \MoveToNode(#1,\Val\Va,\Val\Vb)
\MarkLoc(EdgeBack)
\CSeg\:GetExit(2:,x:) \MoveToNode(#2,\Val\Va,\Val\Vb)
\MarkLoc(EdgeFront)
\LSeg\Va(#1,EdgeBack) \LSeg\Vb(#1,x:)
\IF \GtDec(\Vb,\Va) \THEN
\LSeg\Va(#2,EdgeFront) \LSeg\Vb(#2,x:)
\IF \GtDec(\Vb,\Va) \THEN \:Vc=1; \ELSE \:Vc=-1; \FI
\ELSE \:Vc=-1; \FI
\IF \GtDec(\:Vc,0) \THEN
\MarkLoc(fr:) \:FrArrowHead
\CSeg\:EdgeLine(fr:,bk:) \MarkLoc(fr:)
\MoveToLoc(EdgeBack) \MarkLoc(bk:) \:BkArrowHead
\CSeg\:EdgeLine(bk:,fr:)
\def\EdgeLabel{\:PutLabel\:XYLbl}
\ELSE \CSeg\:GetExit(#1,#2)
\IF \LtDec(\Va,0) \THEN
\Va=-\Va; \:Vc=-1; \ELSE \:Vc=1;
\FI
\IF \LtDec(\Vb,0) \THEN
\Vb=-\Vb; \:Vd=-1; \ELSE \:Vd=1;
\FI
\IF \GtDec(\Va,\Vb) \THEN
\:Vd=0; \:MarkMid(#1,#2) \HHEdge(#1,#2,A:)
\ELSE \:Vc=0; \:MarkMid(#1,#2) \VVEdge(#1,#2,A:) \FI
\FI }\Define\:MarkMid(2){
\MoveToNode(#1,\Val\:Vc,\Val\:Vd) \MarkLoc(1:)
\MoveToNode(#2,-\Val\:Vc,-\Val\:Vd) \MarkLoc(2:)
\CSeg[0.5]\Move(2:,1:) \MarkLoc(A:)}
\Define\VVEdge(3){ \:XXedge(#1,#2,#3,,1) }
\Define\HHEdge(3){ \:XXedge(#1,#2,#3,1,) }\Define\:XXedge(5){
\MoveToNode(#1,0,0) \MarkLoc(1:) \Move(#40,#50) \MarkLoc(1':)
\MoveToNode(#2,0,0) \MarkLoc(2:) \Move(#40,#50) \MarkLoc(2':)
\MoveToLoc(#3) \MarkLoc(3:) \Move(#50,#40) \MarkLoc(3':)
\DSeg\Va(1:,3:) \IF \GtDec(\Va,179) \THEN \Va-180; \FI
\DSeg\Vb(2:,3:) \IF \GtDec(\Vb,179) \THEN \Vb-180; \FI
\IF \EqText(,#4) \THEN
\IF \EqDec(\Va,0) \THEN \HVEdge(#1,#2)
\ELSE \IF \EqDec(\Vb,0) \THEN \VHEdge(#1,#2)
\ELSE \::XXEdge(#1,#2) \FI\FI
\ELSE
\IF \EqDec(\Va,90) \THEN \VHEdge(#1,#2)
\ELSE \IF \EqDec(\Vb,90) \THEN \HVEdge(#1,#2)
\ELSE \::XXEdge(#1,#2) \FI\FI
\FI}
\Define\::XXEdge(2){
\MoveToLL(2:,2':)(3:,3':) \MarkLoc(y:)
\MoveToLL(1:,1':)(3:,3':) \MarkLoc(x:) \MarkLoc(fr:)
\CSeg\:GetExit(1:,x:) \MoveToNode(#1,\Val\Va,\Val\Vb)
\MarkLoc(EdgeBack) \MarkLoc(bk:) \:BkArrowHead
\CSeg\:EdgeLine(bk:,fr:)
\CSeg\:EdgeLine(x:,y:) \MarkLoc(bk:)
\CSeg\:GetExit(2:,y:) \MoveToNode(#2,\Val\Va,\Val\Vb)
\MarkLoc(EdgeFront) \MarkLoc(fr:) \:FrArrowHead
\CSeg\:EdgeLine(fr:,bk:)
\def\EdgeLabel{\:PutLabel\:XXLbl} } \Define\CycleEdge(1){
\MoveToNode(#1,0,0) \MarkLoc(o:) \MoveF(10)
\MarkLoc(oo:) \Rotate(\:CrvEdgeDir) \MoveF(10)
\MarkLoc(1':) \CSeg\:GetExit(oo:,1':)
\MoveToNode(#1,\Val\Va,\Val\Vb) \MarkLoc(EdgeBack)
\MarkLoc(1:) \MoveF(\:CrvEdgeTension)
\MarkLoc(1':) \DSeg\RotateTo(o:,oo:)
\MoveToLoc(o:) \Rotate(-\:CrvEdgeDir) \MoveF(10)
\MarkLoc(2':) \CSeg\:GetExit(o:,2':)
\MoveToNode(#1,\Val\Va,\Val\Vb) \MarkLoc(EdgeFront)
\MarkLoc(2:) \MoveF(\:CrvEdgeTension)
\MarkLoc(2':) \:InCrvEd \:EdgeCurve(1:,1':,2':,2:) }
\Define\CycleEdgeSpec(2){
\:edef\:CrvEdgeDir{#1} \:edef\:CrvEdgeTension{#2}}
\CycleEdgeSpec(30,20)\EdgeSpec(LTS) \Define\TransEdge(4){
\IF \EqText(,#3) \THEN
\IF \EqText(,#4) \THEN
\Edge(#1,#2)
\ELSE \Edge(#2,#1)
\EdgeLabel(--#4--) \relax \FI
\ELSE \IF \EqText(,#4) \THEN
\Edge(#1,#2) \EdgeLabel(--#3--)\relax
\ELSE \IF \EqText(#1,#2) \THEN
\RotateTo(#3) \CycleEdge(#1)
\EdgeLabel(--#4--)\relax
\ELSE \CurvedEdge(#1,#2)
\EdgeLabel(--#3--) \relax \CurvedEdge(#2,#1)
\EdgeLabel(--#4--) \relax \FI \FI \FI }
\:DefineExt\:DiagEg(1){\endgroup
\IF \EqText(,#1) \THEN \ELSE
\Define\:DiagramEdge{#1}
\FI }\Define\GridEdge(2){
\LSeg\Va(#1,#2)
\IF \EqDec(\Va,0) \THEN \:aldwarn2{#2} \FI
\MoveToNode(#1,0,1) \MarkLoc(1:)
\MoveToNode(#2,0,-1) \MarkLoc(2:) \CSeg\:GetXY(1:,2:)
\IF \GtDec(\Vb,-0.1) \THEN
\MoveToNode(#1,1,0) \MarkLoc(1:)
\MoveToNode(#2,-1,0) \MarkLoc(2:) \CSeg\:GetXY(1:,2:)
\IF \GtDec(\Va,-0.1) \THEN \EdgeAt(#1,1,1,#2,-1,-1)
\ELSE
\MoveToNode(#1,-1,0) \MarkLoc(1:)
\MoveToNode(#2,1,0) \MarkLoc(2:) \CSeg\:GetXY(1:,2:)
\IF \LtDec(\Va,0.1) \THEN \EdgeAt(#1,-1,1,#2,1,-1)
\ELSE \EdgeAt(#1,0,1,#2,0,-1)
\FI \FI
\ELSE \MoveToNode(#1,0,-1) \MarkLoc(1:)
\MoveToNode(#2,0,1) \MarkLoc(2:) \CSeg\:GetXY(1:,2:)
\IF \LtDec(\Vb,0.1) \THEN
\MoveToNode(#1,1,0) \MarkLoc(1:)
\MoveToNode(#2,-1,0) \MarkLoc(2:) \CSeg\:GetXY(1:,2:)
\IF \GtDec(\Va,-0.1) \THEN \EdgeAt(#1,1,-1,#2,-1,1)
\ELSE
\MoveToNode(#1,-1,0) \MarkLoc(1:)
\MoveToNode(#2,1,0) \MarkLoc(2:) \CSeg\:GetXY(1:,2:)
\IF \LtDec(\Va,0.1) \THEN \EdgeAt(#1,-1,-1,#2,1,1)
\ELSE \EdgeAt(#1,0,-1,#2,0,1)
\FI\FI
\ELSE \IF \GtDec(\Va,0) \THEN \EdgeAt(#1,1,0,#2,-1,0)
\ELSE \EdgeAt(#1,-1,0,#2,1,0) \FI
\FI\FI} \Define\EdgeToNode(1){{\:EdgeNode(#1)}}
\Define\::EdgeNode(1){ \let&=\relax
\xdef\:ednd{\:ednd&\Val\:C..\Val\:Ca,#1} }
\Define\::CurrEdge(2){ \:C+1;
\IF \EqInt(\:C,2) \THEN
\:CurrEdge(#1,#2) \:C=0;
\FI }
\fi
\:CheckOption{diagram}\if:option
\Define\:Temp{
\def\:PutLabel##1{
\Define\:Lbl{\def\:Temp{\noexpand##1}
\begingroup \:DraCatCodes \:GetLbl}
\edef\:Temp{\noexpand\:Opt[]
\noexpand\:Lbl\noexpand{\:LblAdj\noexpand}}
\:Temp}
\def\:GetLbl[##1]{\endgroup
\IF \EqText(+,##1) \THEN
\edef\:Temp{\:Temp[+\:LblAdj]}
\ELSE \edef\:Temp{\:Temp[##1]} \FI
\:Temp }
}\:Temp\Define\:PutLbl(1){
\MarkLoc(1:) \XSaveUnits \Units(1pt,1pt)
\MoveF(\:LblDis) \XRecallUnits
\IF \EqText(,#1) \THEN \ELSE \:AdjLbl(#1)
\FI \MarkLoc(2:) \CSeg\:GetExit(1:,2:)
\EntryExit(-\Val\Va,-\Val\Vb,0,0) \:EdgeLabel }
\def\:AdjLbl(#1;#2){\Move(#1,#2)}\Define\LabelPos(2){
\def\:LblAdj{#1} \def\:LblDis{#2} }
\LabelPos(0.5;,3) \Define\:Temp{
\def\:LineLbl[##1##2;##3]{
\MoveToLoc(EdgeBack) \MarkLoc(a:)
\MoveToLoc(EdgeFront) \MarkLoc(b:)
\DSeg\RotateTo(a:,b:)
\:C=-1; \:EdgePath(0,99){\:Count}
\IF \EqInt(\:C,1) \THEN
\:EdgePath(1,1){\:LocByAddr\MoveToLoc}
\MarkLoc(a:) \MarkLoc(b:)
\ELSE \IF \GtInt(\:C,1) \THEN
\:C/2; \:EdgePath(\Val\:C,\Val\:C){\:LocByAddr\MoveToLoc}
\MarkLoc(a:)
\:C+1; \:EdgePath(\Val\:C,\Val\:C){\:LocByAddr\MoveToLoc}
\MarkLoc(b:)
\DSeg\RotateTo(a:,b:)
\FI \FI
\MoveToLoc(a:)
\IF \EqText(+,##1) \THEN \Rotate(-90)
\CSeg[##2]\Move(a:,b:)
\ELSE \Rotate(90)
\CSeg[##1##2]\Move(a:,b:)
\FI
\:PutLbl(##3) }
}\:Temp \Define\:Temp{
\def\:CurveLbl[##1##2;##3]{
\MoveToLoc(EdgeBack') \MarkLoc(a:)
\MoveToLoc(EdgeBack'') \MarkLoc(A:)
\MoveToLoc(EdgeFront'') \MarkLoc(B:)
\MoveToLoc(EdgeFront') \MarkLoc(b:)
\DSeg\RotateTo(a:,b:)
\IF \EqText(+,##1) \THEN
\Rotate(-90)
\ELSE
\Rotate(90)
\FI
\MoveToCurve[##2](a:,A:,B:,b:) \:PutLbl(##3) } }\:Temp
\Define\:Temp{
\def\:XYLbl[##1##2;##3]{
\IF \EqText(+,##1) \THEN \Vb=-1; \Va=##2;
\ELSE \Vb= 1; \Va=##1##2;
\FI
\MoveToLoc(x:)
\IF \LtDec(\Va,0.5) \THEN
\MarkLoc(b:) \MoveToLoc(EdgeBack) \MarkLoc(a:)
\DSeg[\Val\Vb]\RotateTo(EdgeFront,x:)
\ELSE
\MarkLoc(a:) \Va-0.5;
\MoveToLoc(EdgeFront) \MarkLoc(b:)
\DSeg[\Val\Vb]\RotateTo(EdgeBack,x:)
\FI
\Va*2;
\MoveToLoc(a:) \CSeg[\Val\Va]\Move(a:,b:)
\:PutLbl(##3) }
}\:Temp \Define\:Temp{
\def\:XXLbl[##1##2;##3]{
\LSeg\Va(x:,y:)
\IF \LtDec(\Va,0.01) \THEN
\MoveToLoc(x:)
\DSeg\RotateTo(EdgeBack,EdgeFront)
\MoveF(0.1pt\du) \MarkLoc(y:)
\FI
\IF \EqText(+,##1) \THEN
\Vb=-90; \Va=##2;
\ELSE
\Vb=90; \Va=##1##2;
\FI
\IF \LtDec(\Va,0.333) \THEN
\MoveToLoc(x:) \MarkLoc(b:)
\MoveToLoc(EdgeBack) \MarkLoc(a:)
\ELSE \IF \LtDec(\Va,0.666) \THEN
\MoveToLoc(x:) \MarkLoc(a:)
\MoveToLoc(y:) \MarkLoc(b:) \Va-0.3333;
\ELSE
\MoveToLoc(y:) \MarkLoc(a:)
\MoveToLoc(EdgeFront) \MarkLoc(b:) \Va-0.666;
\FI \FI
\Va*3;
\DSeg\RotateTo(a:,b:) \Rotate(\Val\Vb)
\MoveToLoc(a:) \CSeg[\Val\Va]\Move(a:,b:)
\:PutLbl(##3) }
}\:Temp \Define\LabelSpec{
\TextPar\Define\:EdgeLabel }
\def\PictLabel#1{\Object\:Temp{#1}\:Temp}
\LabelSpec(1){\Text(--#1--)}
\fi
\:CheckOption{spread}\if:option
\:DefineExt\DiagramSpec(1){\endgroup
\:C=0; \let\:Next=\:DiagNodes \:Next#1&&
\Indirect\let<DiagNod:\Val\:C>=\relax }
\Define\:Temp{
\def\:DiagNodes##1&{
\def\:Temp{##1}
\ifx \:Temp\empty \let\:Next=\relax
\else
\:tk={##1} \:Ca=\:C; \:C+1;
\edef\:Temp{\noexpand\:AddDiagNodes
(\Val\:C,\Val\:Ca,\the\:tk)} \:Temp
\fi \:Next }
}\:Temp
\Define\:AddDiagNodes(3){
\Indirect\def<DiagNod:#2>{\begingroup\:Spaces
\:DiagNds(#1,#3)}}
\Define\:Temp{
\def\:DiagNds(##1,##2)(##3){\endgroup
\Table\:Temp{##3} \:SetDiaNodes##2
\Indirect<DiagNod:##1>}
}\:Temp \Define\Diagram{ \Indirect<DiagNod:0> }
\def\:SetDiaNodes#1{\:Temp(0,999){#1}}
\DiagramSpec(\DiagramNode&\Edge)
\Define\DiagramNode(4){ \MoveTo(#2,#3) \Node(#1)(--#4--) }
\fi
\:CheckOption{grid}\if:option
\:DefineExt\GridDiagramSpec(1){\endgroup
\IF \EqText(,#1) \THEN \ELSE
\:CheckSpecTyp(#1,&)
\IF \:Temp \THEN \Table\:PolyShapes{u,\noexpand#1}
\Define\:ShapeTyp{u,}
\ELSE \Define\:ShapeTyp{}
\:SetPolyNodes#1&,& \let\:Temp=\:PolyShapes
\Table\:PolyShapes{\:Temp} \FI
\FI
\:DiagEg }\Define\:CheckSpecTyp(2){
\IF \EqText(#2,&) \THEN \def\:Temp{\EqInt(1,1)}
\ELSE \def\:Temp{\EqInt(1,2)}
\FI }\GridDiagramSpec(\Node)(\GridEdge)
\Define\:Temp{
\def\:SetPolyNodes##1,##2&{
\Define\:PolyShapes{##1,\noexpand##2}
\:MorePolyNodes } }\:Temp
\Define\:MorePolyNodes{
\def\:Temp{\Define\:PolyShapes}
\Define\:Next{\:GetPolyNodes} \:Next }
\Define\:Temp{
\def\:GetPolyNodes##1,##2&{
\IF \EqText(,##1) \THEN \Define\:Next{}
\ELSE
\expandafter\expandafter\expandafter\:Temp\expandafter{
\:PolyShapes & ##1,\noexpand##2 }
\FI \:Next}} \:Temp
\Define\GridSpace(2){
\:edef\:VGridSp{#2} \:edef\:HGridSp{#1}}
\GridSpace(20,20)\Define\AlignGrid(2){
\def\:XGridEntry{#1} \def\:YGridEntry{#2}}
\AlignGrid(0,0)
\Define\GridDiagram(2){ \MarkLoc(GridOrg)
\IF \LtInt(#1,2) \:aldwarn{11}{#1,#2} \THEN \FI
\IF \LtInt(#2,2) \:aldwarn{11}{#1,#2} \THEN \FI
\EntryExit(\:XGridEntry,\:YGridEntry,0,0)
\Do(0,#1){ \:C=\DoReg; \Indirect\DecVar<y.\Val\:C> }
\Do(0,#2){ \:C=\DoReg; \Indirect\DecVar<x.\Val\:C> }
\Define\:Nrows{#1} \Define\:Ncols{#2}
\:VGridSpace }
\Define\:VGridSpace(1){
\IF \EqText(,#1) \THEN
\Define\:Temp{\:VGridSp,0,1000}
\ELSE \Define\:Temp{#1} \FI
\Table\:VerAdj{\:Temp}
\:C=0; \:VerAdj(0,99){\:Count}
\IF \LtInt(\:C,\:Nrows) \THEN
\:C=-\:C; \:C+\:Nrows; \:C-1;
\IF \LtInt(\Val\:C,\:Nrows) \THEN
\def\:tempA{\def\:Temp}
\IF \GtInt(\Val\:C,0) \THEN
\Do(1,\Val\:C){ \expandafter\expandafter
\expandafter\:tempA\expandafter{
\:Temp & \:VGridSp,0,1000}}
\FI
\Table\:VerAdj{\:Temp}
\FI
\ELSE \IF \GtInt(\:Nrows,1) \THEN
{ \def&{\string&}\:aldwarn4{#1} }
\FI \FI
\:HGridSpace}
\Define\:HGridSpace(1){
\IF \EqText(,#1) \THEN
\Define\:Temp{\:HGridSp,0,1000}
\ELSE \Define\:Temp{#1} \FI
\Table\:HorAdj{\:Temp}
\:C=0; \:HorAdj(0,99){\:Count}
\IF \LtInt(\:C,\:Ncols) \THEN
\:C=-\:C; \:C+\:Ncols; \:C-1;
\IF \LtInt(\:C,\:Ncols) \THEN
\def\:tempA{\def\:Temp}
\IF \GtInt(\:C,0) \THEN
\Do(1,\Val\:C){ \expandafter\expandafter
\expandafter\:tempA\expandafter{
\:Temp & \:HGridSp,0,1000}}
\FI
\Table\:HorAdj{\:Temp}
\FI
\ELSE \IF \GtInt(\:Ncols,1) \THEN
{ \def&{\string&}\:aldwarn4{#1} }
\FI \FI
\:GridEntries}
\Define\:GridEntries{\begingroup\:Spaces\::GridEntries}
\Define\::GridEntries(1){\endgroup
\:bgDiTags
\:C=0; \Define\:Next{\:C+1;\:GetGridRows} \:Next#1//
\Do(1,\:Nrows){\:C=\DoReg; \:Ca=0;
\Indirect<row.\Val\:C>(0,99){\:Ca+1;
\IF \GtInt(\Val\:C,\:Nrows) \THEN \:aldwarn5{} \FI
\IF \GtInt(\Val\:Ca,\:Ncols) \THEN \:aldwarn6{} \FI
\:GetEntrySize}}
\IF \GtInt(\:Nrows,1) \THEN
\Do(2,\:Nrows){ \:C=\DoReg;
\Indirect{\Va=-}<y.\Val\:C>; \:C-1;
\Indirect{\Va+}<y.\Val\:C>;
\Va*\:YGridEntry; \:C+1;
\Indirect{\Va+}<y.\Val\:C>; \:C-1;
\Indirect<y.\Val\:C>+\Va; }
\:C=0; \:VerAdj(0,99){\:C+1; \:AdjGridHeight}
\Do(2,\:Nrows){ \:C=\DoReg; \:C-1;
\Indirect{\Va=}<y.\Val\:C>; \:C+1;
\Indirect<y.\Val\:C>+\Va; } \FI
\IF \GtInt(\:Ncols,1) \THEN
\Do(2,\:Ncols){ \:C=\DoReg;
\Indirect{\Va=+}<x.\Val\:C>; \:C-1;
\Indirect{\Va-}<x.\Val\:C>;
\Va*\:XGridEntry; \:C+1;
\Indirect{\Va+}<x.\Val\:C>; \:C-1;
\Indirect<x.\Val\:C>+\Va; }
\:C=0; \:HorAdj(0,99){\:C+1; \:AdjGridWidth}
\Do(2,\:Ncols){ \:C=\DoReg; \:C-1;
\Indirect{\Va=}<x.\Val\:C>; \:C+1;
\Indirect<x.\Val\:C>+\Va; } \FI
\Do(1,\:Nrows){ \:C=\DoReg;
\Indirect{\Indirect<y.\Val\:C>=-}<y.\Val\:C>; }
\let\:TagNode=\::TagNode
\let\:EdgeNode=\::EdgeNode
\Do(1,\:Nrows){ \:C=\DoReg;
\Do(1,\:Ncols){ \:Ca=\DoReg;
\Indirect<\Val\:C..\Val\:Ca>}}
\Do(1,\:Nrows){ \:C=\DoReg;
\Do(1,\:Ncols){ \:Ca=\DoReg;
\Indirect\let<\Val\:C..\Val\:Ca>=\:undefined}}
\Table\:PolyBaseEdges{\:BaseEdges}
\:C=-1; \:PolyBaseEdges(0,1){\:Count}
\IF \EqInt(\:C,1) \THEN
\:PolyBaseEdges(1,999){\:InsertBaseEdge}
\FI
\let\:CurrEdge=\:DiagramEdge
\:endDiTags }
\Define\:Temp{
\def\:GetGridRows##1//{
\IF \EqText(,##1) \THEN \let\:Next=\relax
\ELSE {\:C-1; \:TrcDiag{\immediate\write16{...read\space
row\space \Val\:C}}}
\def\Defend{\noexpand\noexpand\noexpand}
\def\:Comma{,} \let\:CsCom=\,
\def\,{\noexpand\:Comma}
\let\:Temp=& \def&{\:Temp\:ShapeTyp}
\Indirect\Table<row.\Val\:C>{\:ShapeTyp##1}
\let\Defend=\noexpand\let&=\:Temp
\FI \:Next } }\:Temp\Define\:GetEntrySize(1){
\IF \EqText(,#1) \THEN \ELSE
\:TrcDiag{{ \:C-1; \:Ca-1; \:tk={#1}
\immediate\write16{\Val\:C..\Val\:Ca\space\space\the\:tk}}}
\:GetEntrySizeA(#1,) \FI }\Define\:GetEntrySizeA(3){
\def\:Temp{\:tk=} \:AddBaseEdges(#3)
\:PolyShapes(0,99){\:GetEntrySizeB(#1,#2)}}
\Define\:Temp{
\def\:GetEntrySizeB(##1,##2)(##3,##4){
\IF \EqText(,##2) \THEN \ELSE
\IF \EqText(##1,##3) \THEN
\Indirect\Define<\Val\:C..\Val\:Ca>{
\:AddGridNode(##4,##2)}
\let\:SvWg=~ \let~=\relax
\edef\:Temp{\noexpand##4(.;)(--##2--)}
\let~=\:SvWg
\FigSize\Va\Vb{\:Temp} \Va/2; \Vb/2;
\Indirect{\:Ve=}<x.\Val\:Ca>;
\IF \GtDec(\Va,\:Ve) \THEN
\Indirect<x.\Val\:Ca>=\Va; \FI
\Indirect{\:Ve=}<y.\Val\:C>;
\IF \GtDec(\Vb,\:Ve) \THEN
\Indirect<y.\Val\:C>=\Vb;
\FI \FI \FI }} \:Temp \Define\:AddGridNode(2){
\:C-1; \:Ca-1; \MoveToGrid(\Val\:C,\Val\:Ca)
\let\:SvWg=~\let~=\relax
\edef\:Temp{ \noexpand #1(\Val\:C..\Val\:Ca)(--#2--) }
\let~=\:SvWg
\:Temp \:C+1; }\Define\MoveToGrid(2){
\IF \LtInt(#1,0) \THEN \:aldwarn3{(#1,#2)} \FI
\IF \LtInt(#2,0) \THEN \:aldwarn3{(#1,#2)} \FI
\IF \GtInt(#1,\:Nrows) \THEN \:aldwarn3{(#1,#2)} \FI
\IF \GtInt(#2,\:Ncols) \THEN \:aldwarn3{(#1,#2)} \FI
\Indirect{\Va=}<x.#2>;
\Indirect{\Vb=}<y.#1>;
\MoveToLoc(GridOrg)
\Move(\Val\Va pt\du,\Val\Vb pt\du) }
\Define\:AddBaseEdges(1){
\IF \EqText(,#1) \THEN \def\:Next{}
\ELSE
\:AddBaseEdgesB(#1)
\FI \:Next}
\Define\:AddBaseEdgesB(2){
\expandafter\expandafter\expandafter\:Temp
\expandafter{\:BaseEdges &}
\edef\:BaseEdges{ \the\:tk \Val\:C,\Val\:Ca,#1 }
\def\:Next{\:AddBaseEdges(#2)}}
\Define\:BaseEdges{0,0,0,0}\Define\:AdjGridWidth(3){
\Indirect{\Va=}<x.\Val\:C>; \Va+#1;
\IF \LtDec(\Va,#2) \THEN \Va=#2; \ELSE
\IF \GtDec(\Va,#3) \THEN \Va=#3; \FI \FI
\Indirect<x.\Val\:C>=\Va; }\Define\:AdjGridHeight(3){
\Indirect{\Va=}<y.\Val\:C>; \Va+#1;
\IF \LtDec(\Va,#2) \THEN \Va=#2; \ELSE
\IF \GtDec(\Va,#3) \THEN \Va=#3; \FI \FI
\Indirect<y.\Val\:C>=\Va; }\Define\:InsertBaseEdge(3){
\:C=#1; \:Ca=#2; \:TargetNode(#3,)
\IF \EqInt(\:C,1) \THEN \:GetGridLbl(#3) \FI
\:C=#1; \:Ca=#2;
\expandafter\:GetTarget\:Temp..
\:C=#1; \:C-1; \:Ca=#2; \:Ca-1;
\edef\:Temp{\noexpand\:DiagramEdge(\Val\:C..\Val\:Ca,\:Temp\the\:tk)}
\:Temp} \Define\:TargetNode(2){
\def\:Temp{#1}
\IF \EqText(,#2) \THEN \:C=0; \:tk={}
\ELSE \:C=1; \FI }
\Define\:GetGridLbl(2){ \:tk={,#2} } \Define\:Temp{
\def\:GetTarget##1##2..##3##4..{
\:C-1; \:Ca-1; \edef\:tempa{\Val\:C..\Val\:Ca}
\IF \EqText(+,##1) \THEN
\:C+##2; \:Ca##3##4; \edef\:Temp{\Val\:C..\Val\:Ca}
\ELSE\IF \EqText(-,##1) \THEN
\:C-##2; \:Ca##3##4; \edef\:Temp{\Val\:C..\Val\:Ca}
\ELSE \def\:Temp{##1##2..##3##4} \FI\FI
\:TrcDiag{\immediate\write16{\:tempa-->\:Temp}} }
}\:Temp
\fi
\:CheckOption{tree}\if:option
\Define\:MoveH(2){
\ifx H\:TreeDir \Move(0,-#2)
\else \Move(#1,0) \fi }
\Define\:MoveV(2){
\ifx H\:TreeDir \Move(#1,0)
\else \Move(0,#2) \fi }
\Define\:MoveHV(2){
\ifx H\:TreeDir \Move(0,#2)
\else \Move(#1,0) \fi }
\Define\:DistH(2){
\ifx H\:TreeDir \Va=#2; \else \Va=#1; \fi}
\def\:oochild{0} \Define\:MoveLFr(2){
\ifx H\:TreeDir \MoveToNode(#2,0,-1) \else \MoveToNode(#2,1,0) \fi}
\Define\:FrDs(2){ \MoveToLoc(:a) \MarkLoc(:a')
\if H\:TreeDir\relax \MoveToNode(#2,0,-1)
\else \MoveToNode(#2,1,0) \fi
\MarkLoc(:a)
\:tempb(\DoReg,\DoReg){\:MoveRFr}
\CSeg\:AddX(:a,:a') \CSeg\:AddX(:b',:b)
\ifx H\:TreeDir
\IF \GtDec(\:va,0) \THEN \:vb-\:va; \:va=0; \FI
\else
\IF \LtDec(\:vb,0) \THEN \:va-\:vb; \:vb=0; \FI
\fi
}
\Define\:MoveRFr(2){
\MoveToLoc(:b) \MarkLoc(:b')
\ifx H\:TreeDir \MoveToNode(#1,0,1) \else \MoveToNode(#1,-1,0) \fi
\MarkLoc(:b) }
\Define\:AddX(2){ \ifx H\:TreeDir \:va+#2; \else \:vb+#1; \fi }
\Define\:Temp{ \let\:aprsnd=& }
\:Temp \Define\:left(2){ \def\:frL{#1}}
\Define\:right(2){ \let&=\relax
\edef\:frL{\:frL,#2} \let&=\:aprsnd }
\Define\:copy(1){ \let&=\relax
\edef\:frL{\:frL & #1} \let&=\:aprsnd }
\Define\:addleft(2){ \let&=\relax
\edef\:frL{\:frL} \let&=\:aprsnd}
\Define\:both(1){
\IF \GtInt(#1,0) \THEN
\Do(1,#1){
\:tempa(\DoReg,\DoReg){\:addleft}
\:tempb(\DoReg,\DoReg){\:right} }
\FI }
\:DefineExt\TreeSpec(1){\endgroup
\IF \EqText(,#1) \THEN \ELSE
\:TrNodes#1&&\let \:LeafNode=\:TreeNode
\FI \:DecideLeafNode }
\def\:Temp{\catcode`\ =10 \catcode`\^^M=5 \catcode`\&=4 }
\catcode`\ =9 \catcode`\^^M=9 \catcode`\&=13
\def\:TrNodes#1&{
\IF \EqText(,#2) \THEN
\Define\:TreeNode(2){#1(##1)(--##2--)}
\let\:Next=\relax
\ELSE
\Define\:TreeNode{
\expandafter\:CondTreeNode\:pars(#1)
\expandafter\:CondTreeNode\:pars(#2) }
\def\:tempa{ \Define\:TreeNode }
\let\:Next=\:DecideTreeNodes
\FI \:Next}
\def\:DecideTreeNodes#1&{
\IF \EqText(,#1) \THEN \let\:Next=\relax
\def\:tempa{\Define\:TrNd}
\expandafter\expandafter\expandafter
\:tempa\expandafter{ \:TreeNode \:Temp }
\def\:TreeNode(##1,##2){
\def\:pars{(##1)(##2)} \:TrNd}
\ELSE
\expandafter\expandafter\expandafter
\:tempa\expandafter{ \:TreeNode
\expandafter\:CondTreeNode\:pars(#1)}
\FI \:Next}
\:Temp
\Define\:Temp{
\def\:CondTreeNode(##1)(##2,##3)(##4,##5){
\IF \EqText(##2,##4) \THEN
\def\:Temp{##5(##1)(--##3--)}
\FI}
}\:Temp\:DefineExt\:DecideLeafNode(1){\endgroup
\IF \EqText(,#1) \THEN \ELSE
\Define\:LeafNode(2){#1(##1)(--##2--)}
\FI
\:DecideTreeEdge}\:DefineExt\:DecideTreeEdge(1){\endgroup
\IF \EqText(,#1) \THEN \ELSE
\Define\:TreeEdge(2){
\Indirect{\let\:Temp=} <##2.mvto>
\ifx \:Temp\:ChkInv \else
\:TrcDiag{\immediate\write16{##1,##2}}
\ifx H\:TreeDir \MoveToNode(##1,\:EntryX,0)
\else \MoveToNode(##1,0,\:EntryY) \fi
\:MvToDivider##1.. \MarkLoc(EdgeGuide)
#1(##1,##2)
\fi }
\FI} \Define\Tree(1){
\Define\:PolyVerTreeSp{#1}
\Define\:BareTr(1){,##1}
\begingroup \:Spaces \:Tree }
\Define\LTree(1){
\Define\:PolyVerTreeSp{#1} \:LTree }
\catcode`\#=13
\Define\:LTree{\def#{\Defend&} \let\-=# \let\:BareTr=\relax
\begingroup \catcode`\#=13 \:Spaces \:Tree }
\catcode`\#=6
\Define\:Tree(1){\endgroup
\:bgDiTags
\let\:MergTree=\relax
\ifx \:Cspace\:InInx \let\:MergTree=\::MergTree \fi
\:TrSp(0,99){\:copt}
\ifx H\:TreeDir \let\:tempc=\Va
\def\:TreeEnEx{\EntryExit(\:EntryX,\:EntryY,0,0)}
\else \let\:tempc=\Vb
\def\:TreeEnEx{\EntryExit(\:EntryX,\:EntryY,0,0)} \fi
\:C=-1;
\let\:Next=\:GetTreeRows \:Next#1//
\Do(1,\Val\:C){ \:Ca=\DoReg;
\Indirect{\Va=-}<y.\Val\:Ca>; \:Ca-1;
\Indirect\DecVar<x.\Val\:Ca>
\ifx H\:TreeDir \Indirect<x.\Val\:Ca>=-\:EntryX;
\else \Indirect<x.\Val\:Ca>=\:EntryY; \fi
\Indirect<x.\Val\:Ca>+1;
\Indirect{\Indirect<x.\Val\:Ca>*}<y.\Val\:Ca>;
\Indirect<x.\Val\:Ca>/2;
\Indirect{\Va+}<y.\Val\:Ca>;
\ifx H\:TreeDir \Va*-\:EntryX;
\else \Va*\:EntryY; \fi
\:Ca+1; \Indirect{\Va+}<y.\Val\:Ca>; \:Ca-1;
\Indirect<y.\Val\:Ca>+\Va;
\Indirect<y.\Val\:Ca>/2;}\:Ca=-1;
\ifx \:PolyVerTreeSp\empty \else
\let\:tempa=\:PolyVerTreeSp
\Table\:PolyVerTreeSp{\:tempa}
\:PolyVerTreeSp(0,99){\:AddVerTreeSp}
\fi
\:Cb=\:Ca; \:Cb+1;
\IF \GtInt(\:C,\:Cb) \THEN
\:Cb+1;
\Do(\Val\:Cb,\Val\:C){\:AddVerTreeSp(\:VerTreeSp)}
\ELSE \IF \GtInt(\:Cb,\:C) \THEN
\:aldwarn1{}\FI\FI
\Indirect{\let\:va=}<x.0>
\Indirect{\let\:vb=}<y.0>
\let\:TagNode=\::TagNode
\let\:EdgeNode=\::EdgeNode
\Do(0,\Val\:C){ \:Ca=-1; \:Cb=-1;
\Indirect<row.\DoReg>(0,99){
\:Ca+1; \:DefSubTree} }
\gdef\:GetNodesAddr{} \:AddrCount=1;
\Indirect<0..0> \global\let\:GetNodesAddr=\:undefined
\ifx \:BareTr\relax \let\:EnterTreeEdge=\:::EnterTreeEdge
\else \let\:EnterTreeEdge=\::EnterTreeEdge \fi
\:C-1;
\Do(0,\Val\:C){ \:C=\DoReg; \:Ca=-1; \:Cb=\DoReg; \:Cb+1; \:Cc=-1;
\Indirect<row.\DoReg>(0,99){
\:Ca+1; \:EnterTreeEdge} }
\let\:CurrEdge=\:TreeEdge
\let\:tempa=\:MvToDivider
\def\:MvToDivider##1..##2..{\Move(0.001pt\du,0.001pt\du)}
\:endDiTags \let\:MvToDivider=\:tempa
\let\-=\:svneg }
\let\:svneg=\- \Define\:Temp{
\def\:GetTreeRows##1//{
\def\:Temp{##1}
\ifx \:Temp\empty \let\:Next=\relax \else
\:C+1;
\ifx \:BareTr\relax \else
\TableData\:Temp\:BareTr{##1}
\fi
\Indirect\Table<row.\Val\:C>{\:Temp}
\def\:tempa{} \:Vc=0;
\def\:tempb{\:tk=} \:Ca=-1;
\Indirect<row.\Val\:C>(0,99){\:Ca+1; \:MeasureRow}
\Indirect\DecVar<y.\Val\:C>
\Indirect<y.\Val\:C>=\:Vc;
\fi \:Next}
}\:Temp\Define\::EnterTreeEdge(3){
\IF \GtInt(#2,0) \THEN
\Do(1,#2){ \:Cc+1;
\edef\:temp{\noexpand\:TreeEdge
(\Val\:C..\Val\:Ca,\Val\:Cb..\Val\:Cc)
\noexpand\:C=\Val\:C; \noexpand\:Ca=\Val\:Ca;}
\:temp }
\FI }\Define\:::EnterTreeEdge(3){
\edef\:temp{\:tk={\noexpand\:C=\Val\:C;
\noexpand\:Ca=\Val\:Ca;}} \:temp
\IF \GtInt(#2,0) \THEN
\Table\:BareTr{#1}
\:BareTr(0,99){ \:Cc+1; \the\:tk
\edef\:temp{\noexpand\:TreeEdgePos
(\Val\:C..\Val\:Ca,\Val\:Cb..\Val\:Cc) }
\:temp \:TreeLabel }
\FI \the\:tk }
\Define\:TreeEdgePos(2){ \:TreeEdge(#1,#2) \LTreePos(#1,#2) }
\Define\:TreeLabel(1){ \EdgeLabel(--#1--) }
\Define\LTreePos(2){ \DSeg\Va(#1,#2)
\IF \LtDec(\Va,270) \THEN \LabelPos(0.65;-3;3,)
\ELSE \LabelPos(+0.65;3;3,) \FI }\Define\:DefSubTree(3){ \:tk={#3}
\edef\:Temp{
\noexpand\::DefSubTree(#2,\the\DoReg,\Val\:Ca,\Val\:Cb,\the\:tk)}
\:Cb+#2; \:Temp}\Define\::DefSubTree(5){
\Indirect\Object<#2..#3>{
\let\:ochild=\:oochild \let\:currFrL=\:frL \let\:currDpL=\:dpL
\def\:dpL{-1} \def\:frL{}
\:Ca=#3; \:Cc=#2;
\:TrSp(0,99){\:unl}
\:Cc+1; \:Cb=#4; \:Cb+1;
\IF \GtInt(#1,0) \THEN
\edef\:parmA{#1} \edef\:parmB{#2}
\:tk={#5} \def\:parmC{\the\:tk}
\def\:Temp{\:Cind }
\ELSE \:tk={#5}
\edef\:Temp{\noexpand \:Clnd (#2,\noexpand\the\:tk) }
\FI
\edef\:Temp{\expandafter\noexpand\:Temp
\noexpand\:endSubTr (#1,#2,#3)}
\:Temp }}\Define\:endSubTr(3){
\Indirect{\Indirect
{ \global\let}<#2..\Val\:Ca.mvto>= }<#2..\Val\:Ca.mvto>
\MoveToLoc(#2..\Val\:Ca) \MarkXLoc(#2..\Val\:Ca)
\MoveToLoc(#2..\Val\:Ca;:11) \MarkXLoc(#2..\Val\:Ca;:11)
\edef\:temp{\noexpand\:AddNodesAddr(#2..\Val\:Ca) } \:temp
\:Ca=\:dpL; \:Ca+1; \xdef\:dpR{\Val\:Ca} \let&=\relax
\xdef\:frR{ #2..#3,#2..#3 & \:frL }
\ifx \:Cspace\:InInx
\let&=\:aprsnd
\:Ca=#2; \:Ca*#1; \:Ca*\:ochild; \:Ca*\:lchild;
\IF \GtInt(\:Ca,0) \THEN
\IF \GtInt(\:currDpL,\:dpR) \THEN \def\:tempc{\:dpR}
\ELSE \def\:tempc{\:currDpL} \FI
\Table\:tempa{\:currFrL}
\Table\:tempb{\:frR} \if H\:TreeDir \MoveToNode(#2..#3,0,1)
\else \MoveToNode(#2..#3,-1,0) \fi \MarkLoc(:b)
\:tempa(0,0){\:MoveLFr} \MarkLoc(:a)
\:va=0; \:vb=0; \IF \GtInt(\:tempc,0) \THEN
\let\:MoveToInv=\::MoveToInv
\DoReg=0\relax \:tempa(1,\:tempc){\advance\DoReg by 1 \:FrDs}
\FI
\MoveToLoc(a:) \:MoveH(-\Val\:va,\Val\:vb)
\MarkXLoc(INc:)
\FI \fi } \Define\:Cind{
\edef\:lchild{\Val\:Cb}
\def\:oochild{0}
\:trcTree
\Indirect<\Val\:Cc..\Val\:Cb>[\:InInx] \:SubTreeAddrs
\let\:dpL=\:dpR \let\:frL=\:frR
\MoveToLoc(INx:) \MarkLoc(-12:)
\MoveToLoc(IN:) \MarkLoc(-11:)
\MoveToLoc(OUTx:) \MarkLoc(12:)
\MoveToLoc(OUT:) \MarkLoc(11:)
\IF \GtInt(\:parmA,1) \THEN
\def\:oochild{1}
\Do(2,\:parmA){
\MoveToLoc(\:OutOutx)
\:MoveH(\:HorTreeSp,\:HorTreeSp)
\:TrSp(0,99){\:spbn} \:Cb+1;
\:trcTree
\Indirect<\Val\:Cc..\Val\:Cb>[\:InInx] \:SubTreeAddrs
\MarkLoc(o:)
\MoveToLoc(INx:) \MarkLoc(-\DoReg2:)
\MoveToLoc(IN:) \MarkLoc(-\DoReg1:)
\MoveToLoc(OUTx:) \MarkLoc(\DoReg2:)
\MoveToLoc(OUT:) \MarkLoc(\DoReg1:)
\MoveToLoc(o:)
\:MergTree }
\FI \:C=\:parmB; \:TrSp(0,99){\:lcalg}
\:ChildLoc(\:AlignA,-12:,-11:,11:,12:) \MarkLoc(a:)
\:ChildLoc(\:AlignB,INx:,IN:,OUT:,OUTx:) \MarkLoc(b:)
\:C=\:parmB;
\IF \LtDec(\:AlignC,-1) \THEN
\MoveToLoc(a:) \:MoveH(\:AlignC,\:AlignC)
\ELSE \IF \GtDec(\:AlignC,1) \THEN
\MoveToLoc(b:) \:MoveH(\:AlignC,\:AlignC)
\ELSE
\CSeg[0.5]\Move(b:,a:) \MarkLoc(o:)
\CSeg[\:AlignC]\Move(o:,b:)
\FI \FI
\:TrSp(0,99){\:mvpr}
\ifx H\:TreeDir \Indirect{\Move(-\Val}<y.\Val\:C>,0)
\else \Indirect{\Move(0,\Val}<y.\Val\:C>) \fi
\MarkLoc(o:) \:TreeEnEx
\edef\:Temp{\noexpand\:TreeNode(\:parmB..\Val\:Ca,\:parmC)}\:Temp
\ifx H\:TreeDir
\MoveToNode(\:parmB..\Val\:Ca,0,1) \MarkLoc(a:)
\MoveToNode(\:parmB..\Val\:Ca,0,-1) \MarkLoc(b:)
\else
\MoveToNode(\:parmB..\Val\:Ca,-1,0) \MarkLoc(a:)
\MoveToNode(\:parmB..\Val\:Ca,1,0) \MarkLoc(b:)
\fi
\MoveToLoc(o:) \CSeg\:MoveHV(o:,a:)
\MarkLoc(a:) \MarkXLoc(IN:)
\MarkXLoc(INc:)
\MoveToLoc(o:) \CSeg\:MoveHV(o:,b:)
\MarkXLoc(OUT:) \MarkLoc(b:)
\MoveToLoc(o:) \CSeg\:MoveHV(o:,-12:) \MarkLoc(-12:)
\MoveToLoc(a:) \CSeg\:DistH(a:,-12:)
\IF \LtDec(\Va,0) \THEN
\ifx H\:TreeDir
\else \Move(\Val\Va,0) \fi
\ELSE
\ifx H\:TreeDir \Move(0,\Val\Va)
\else \fi
\FI
\MarkXLoc(INx:)
\MoveToLoc(o:) \CSeg\:MoveHV(o:,OUTx:) \MarkLoc(OUTx:)
\MoveToLoc(b:) \CSeg\:DistH(b:,OUTx:)
\IF \GtDec(\Va,0) \THEN
\ifx H\:TreeDir
\else \Move(\Val\Va,0) \fi
\ELSE
\ifx H\:TreeDir \Move(0,\Val\Va)
\else \fi
\FI
\MarkXLoc(OUTx:) }
\Define\:Clnd(2){
\MarkLoc(o:) \:TreeEnEx \:C=#1; \:LeafNode(#1..\Val\:Ca,#2)
\ifx H\:TreeDir
\MoveToNode(#1..\Val\:Ca,0,1) \MarkLoc(IN:)
\MoveToNode(#1..\Val\:Ca,0,-1)
\else
\MoveToNode(#1..\Val\:Ca,-1,0) \MarkLoc(IN:)
\MoveToNode(#1..\Val\:Ca,1,0) \fi
\MarkLoc(OUT:) \MoveToLoc(o:) \CSeg\:MoveHV(o:,IN:)
\MarkXLoc(IN:) \MarkXLoc(INc:) \MarkXLoc(INx:)
\MoveToLoc(o:) \CSeg\:MoveHV(o:,OUT:)
\MarkXLoc(OUT:) \MarkXLoc(OUTx:) }
\Define\TreeAlign(3){ \let\:TreeDir=#1
\def\:EntryX{#2} \def\:EntryY{#3} \:AlignTree}
\Define\:AlignTree(3){
\def\:AlignA{#1} \def\:AlignB{#2} \def\:AlignC{#3}}
\TreeAlign(V,0,0)(0,0,0)
\Define\:trcTree{\:TrcDiag{\immediate\write16{\space
\:parmB..\Val\:Ca,\Val\:Cc..\Val\:Cb}}}
\Define\:ChildLoc(2){
\IF \LtDec(#1,0) \THEN \Va=-#1;
\ELSE \Va= #1; \FI
\IF \LtDec(\Va,100) \THEN
\::ChildLoc(#1,#2)
\ELSE \Va/100; \:C[\Va]; \Vb=#1;
\IF \GtDec(#1,0) \THEN \Vb-\:C 00;
\ELSE \Vb+\:C 00; \FI
\edef\:Temp{\noexpand\::ChildLoc
(\Val\Vb,-\Val\:C2:,-\Val\:C1:,\Val\:C1:,\Val\:C2:)}\:Temp
\FI } \Define\::ChildLoc(5){
\IF \LtDec(#1,-2) \THEN
\MoveToLoc(#2) \:MoveH(#1,#1)
\ELSE \IF \GtDec(#1,2) \THEN
\MoveToLoc(#4) \:MoveH(#1,#1)
\ELSE \IF \LtDec(#1,-1) \THEN
\MoveToLoc(#3) \Va=#1; \Va+1;
\CSeg[\Val\Va]\Move(#2,#3)
\ELSE \IF \GtDec(#1,1) \THEN
\MoveToLoc(#4) \Va=#1; \Va-1;
\CSeg[\Val\Va]\Move(#4,#5)
\ELSE \MoveToLoc(#3)
\CSeg[0.5]\Move(#3,#4) \:MoveH(#1,#1)
\FI \FI \FI \FI}\def\:GetIx#1..#2//{\:Ca=#1;\:Cb=#2;}
\Define\::MoveToInv(3){
\Indirect{\let\:temp=}<#1.mvto>
\expandafter\ifx\:temp\MoveToInv
\:GetIx#1// \ifx H\:TreeDir \:Cb-#3; \else \:Cb-#2; \fi
\edef\:Temp{\noexpand\MoveToInv(\Val\:Ca..\Val\:Cb,
\ifx H\:TreeDir 0,#3 \else -#2,0 \fi)}
\expandafter\:Temp
\ELSE
\ifx H\:TreeDir \Indirect<#1.mvto>(#1,0,#3)
\else \Indirect<#1.mvto>(#1,-#2,0) \fi
\FI }
\def\MoveToInv{\:MoveToInv}
\let\:MoveToInv=\MoveToRect \Define\::MergTree{
\edef\:Temp{\DoReg=\the\DoReg\relax}
\Table\:tempa{\:frL}
\Table\:tempb{\:frR}
\:tempa(0,0){\:left}
\:tempb(0,0){\:right}
\IF \GtInt(\:dpR,\:dpL) \THEN
\:both(\:dpL) \:DoReg=\:dpL \advance\:DoReg by 1\relax
\:tempb(\:DoReg,\:dpR){\:copy}
\let\:dpL=\:dpR
\ELSE
\:both(\:dpR)
\IF \GtInt(\:dpL,\:dpR) \THEN
\:DoReg=\:dpR \advance\:DoReg by 1\relax
\:tempa(\:DoReg,\:dpL){\:copy}
\FI
\FI \:Temp } \Define\:copt(3){\::copt(#3,)}
\Define\::copt(2){
\IF \EqText(#1,C) \THEN
\let\:MergTree=\::MergTree \FI }
\Define\:MeasureRow(3){
\:TrcDiag{{ \:tk={#1,#2,#3}
\immediate\write16{\Val\:C..\Val\:Ca\space\space\the\:tk}}}
\IF \EqInt(#2,0) \THEN
\FigSize\Va\Vb{\:LeafNode(x,#3)}
\ELSE \FigSize\Va\Vb{\:TreeNode(x,#3)} \FI
\expandafter\expandafter\expandafter\:tempb
\expandafter{\:tempa &}
\edef\:tempa{\the\:tk #2,\Val\Va,\Val\Vb}
\IF \LtDec(\:Vc,\:tempc) \THEN \:Vc=\:tempc; \FI }
\Define\:AddVerTreeSp(1){
\:Ca+1; \Indirect<y.\Val\:Ca>+#1;
\Va=#1; \Va*\:TreeEdgeSpec; \Indirect<x.\Val\:Ca>+\Va; }
\:DefineExt\TreeSpace(3){\endgroup
\IF \EqText(D,#1) \THEN
\def\:OutOutx{OUT:} \def\:InInx{IN:} \FI
\IF \EqText(C,#1) \THEN
\def\:OutOutx{OUT:} \def\:InInx{INc:}
\let\:Cspace=\:InInx \FI
\IF \EqText(S,#1) \THEN
\def\:OutOutx{OUTx:} \def\:InInx{INx:} \FI
\:edef\:HorTreeSp{#2}
\:edef\:VerTreeSp{#3} }
\TreeSpace(S,10,20)\:DefineExt\AdjTree(1){\endgroup
\IF \EqText(#1,) \THEN \Table\:TrSp{,,}
\ELSE \Table\:TrSp{#1} \FI }
\AdjTree()\Define\:unl(3){
\IF \EqText(#1,L) \THEN
\IF \EqInt(\:Cc,#2) \THEN \TreeSpace(#3,0) \FI
\ELSE \IF \EqText(#1,N) \THEN
\:edef\:Temp{\noexpand\EqText(\Val\:Cc..\Val\:Ca,#2)}
\IF \:Temp \THEN \TreeSpace(#3,0) \FI
\FI \FI}\Define\:spbn(3){
\IF \EqText(#1,B) \THEN
\:edef\:Temp{\noexpand\EqText(\Val\:Cc..\Val\:Cb,#2)}
\IF \:Temp \THEN \:MoveH(#3,#3)
\FI\FI}\Define\:lcalg(3){
\IF \EqText(#1,A) \THEN
\:edef\:Temp{\noexpand\EqText(\Val\:C..\Val\:Ca,#2)}
\IF \:Temp \THEN
\:xalg(#3)
\FI\FI}
\Define\:xalg(2){ \def\:EntryX{#1} \:AlignTree(#2) }
\Define\:mvpr(3){
\IF \EqText(#1,M) \THEN
\:edef\:Temp{\noexpand\EqText(\Val\:C..\Val\:Ca,#2)}
\IF \:Temp \THEN \:MoveH(#3,-#3)
\FI\FI}\Define\TreeEdgeSpec(1){\:edef\:TreeEdgeSpec{#1}}
\TreeEdgeSpec(0.5) \def\:ChkInv{\MoveToInv}
\Define\:Temp{
\def\:MvToDivider##1..##2..{
\ifx H\:TreeDir \Indirect{\Move(\Val}<x.##1>,0)
\else \Indirect{\Move(0,-\Val}<x.##1>) \fi }
}\:Temp \Define\TreeEdge(2){
\ifx H\:TreeDir \HHEdge(#1,#2,EdgeGuide)
\else \VVEdge(#1,#2,EdgeGuide) \fi }
\Define\:AddNodesAddr(1){
\Define\:temp{\gdef\:GetNodesAddr}
\expandafter\expandafter\expandafter
\:temp\expandafter{\:GetNodesAddr & #1 }}
\Define\:SubTreeAddrs{
\Table\:AddrPoly{ \:GetNodesAddr}
\:AddrPoly(\Val\:AddrCount,999){\:AddrCount+1;\:RecordAddr} }
\Define\:RecordAddr(1){\MoveToLoc(#1) \MarkXLoc(#1)
\MoveToLoc(#1;:11) \MarkXLoc(#1;:11)}
\IntVar\:AddrCount\TreeSpec(\Node)()(\TreeEdge)
\fi
\let\if:option=\:undefined
\let\:CheckOption=\:undefined
\let\:GetOptions=\:undefined
\let\AlDraTex=\:undefined
\def\:aldwarn#1#2{\immediate
\write16{---AlDraTeX warning--- \ifcase #1
insufficient space for arrow head %0
\or \string\Tree(too many values)(...) %1
\or edge from node #2 to itself %2
\or #2 not a grid point %3
\or too many entries in (#2) %4
\or too many rows: \Val\:C %5
\or row \Val\:C\space has too many columns: \Val\:Ca %6
\or \Val\:C\space(>5) entries in \string\BarChartSpec %7
\or more than one bar in \string\BarChartSpec(\the\:tk) %8
\or no font for \string\NewCIRCNode, trying `\string
\font\string\CIRC=lcircle10 scaled\string\magstep5' %9
\or \string\PutNode(#2)? %10
\or \string\GridDiagram(#2)? less than 2 rows/columns %11
\fi}}
\:RestoreCatcodes \endinput
