/
forest.sty
4731 lines (4725 loc) · 163 KB
/
forest.sty
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%%
%% This is file `forest.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% forest.dtx
%%
%% `forest' is a `pgf/tikz'-based package for drawing (linguistic) trees.
%%
%% Copyright (c) 2013 Saso Zivanovic
%% (Sa\v{s}o \v{Z}ivanovi\'{c})
%% saso.zivanovic@guest.arnes.si
%%
%% This work may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%% The latest version of this license is in
%%
%% http://www.latex-project.org/lppl.txt
%%
%% and version 1.3 or later is part of all distributions of LaTeX
%% version 2005/12/01 or later.
%%
%% This work has the LPPL maintenance status `maintained'.
%%
%% The Current Maintainer of this work is Saso Zivanovic.
%%
%% This work consists of the files forest.dtx and forest.ins
%% and the derived file forest.sty.
%%
\ProvidesPackage{forest}[2014/03/07 v1.05 Drawing (linguistic) trees]
\RequirePackage{tikz}[2010/10/13]
\usetikzlibrary{shapes}
\usetikzlibrary{fit}
\usetikzlibrary{calc}
\usepgflibrary{intersections}
\RequirePackage{pgfopts}
\RequirePackage{etoolbox}[2010/08/21]
\RequirePackage{environ}
%\usepackage[trace]{trace-pgfkeys}
\pgfkeys{/forest/.is family}
\def\forestset#1{\pgfqkeys{/forest}{#1}}
\long\def\forest@original@pgfkeysdefnargs@#1#2#3#4{%
\ifcase#2\relax
\pgfkeyssetvalue{#1/.@args}{}%
\or
\pgfkeyssetvalue{#1/.@args}{##1}%
\or
\pgfkeyssetvalue{#1/.@args}{##1##2}%
\or
\pgfkeyssetvalue{#1/.@args}{##1##2##3}%
\or
\pgfkeyssetvalue{#1/.@args}{##1##2##3##4}%
\or
\pgfkeyssetvalue{#1/.@args}{##1##2##3##4##5}%
\or
\pgfkeyssetvalue{#1/.@args}{##1##2##3##4##5##6}%
\or
\pgfkeyssetvalue{#1/.@args}{##1##2##3##4##5##6}%
\or
\pgfkeyssetvalue{#1/.@args}{##1##2##3##4##5##6##7}%
\or
\pgfkeyssetvalue{#1/.@args}{##1##2##3##4##5##6##7##8}%
\or
\pgfkeyssetvalue{#1/.@args}{##1##2##3##4##5##6##7##8##9}%
\else
\pgfkeys@error{\string\pgfkeysdefnargs: expected <= 9 arguments, got #2}%
\fi
\pgfkeysgetvalue{#1/.@args}\pgfkeys@tempargs
\def\pgfkeys@temp{\expandafter#4\csname pgfk@#1/.@@body\endcsname}%
\expandafter\pgfkeys@temp\pgfkeys@tempargs{#3}%
% eliminate the \pgfeov at the end such that TeX gobbles spaces
% by using
% \pgfkeysdef{#1}{\pgfkeysvalueof{#1/.@@body}##1}
% (with expansion of '#1'):
\edef\pgfkeys@tempargs{\noexpand\pgfkeysvalueof{#1/.@@body}}%
\def\pgfkeys@temp{\pgfkeysdef{#1}}%
\expandafter\pgfkeys@temp\expandafter{\pgfkeys@tempargs##1}%
\pgfkeyssetvalue{#1/.@body}{#3}%
}
\long\def\forest@patched@pgfkeysdefnargs@#1#2#3#4{%
\ifcase#2\relax
\pgfkeyssetvalue{#1/.@args}{}%
\or
\pgfkeyssetvalue{#1/.@args}{##1}%
\or
\pgfkeyssetvalue{#1/.@args}{##1##2}%
\or
\pgfkeyssetvalue{#1/.@args}{##1##2##3}%
\or
\pgfkeyssetvalue{#1/.@args}{##1##2##3##4}%
\or
\pgfkeyssetvalue{#1/.@args}{##1##2##3##4##5}%
\or
\pgfkeyssetvalue{#1/.@args}{##1##2##3##4##5##6}%
%%%%% removed:
%%%%% \or
%%%%% \pgfkeyssetvalue{#1/.@args}{##1##2##3##4##5##6}%
\or
\pgfkeyssetvalue{#1/.@args}{##1##2##3##4##5##6##7}%
\or
\pgfkeyssetvalue{#1/.@args}{##1##2##3##4##5##6##7##8}%
\or
\pgfkeyssetvalue{#1/.@args}{##1##2##3##4##5##6##7##8##9}%
\else
\pgfkeys@error{\string\pgfkeysdefnargs: expected <= 9 arguments, got #2}%
\fi
\pgfkeysgetvalue{#1/.@args}\pgfkeys@tempargs
\def\pgfkeys@temp{\expandafter#4\csname pgfk@#1/.@@body\endcsname}%
\expandafter\pgfkeys@temp\pgfkeys@tempargs{#3}%
% eliminate the \pgfeov at the end such that TeX gobbles spaces
% by using
% \pgfkeysdef{#1}{\pgfkeysvalueof{#1/.@@body}##1}
% (with expansion of '#1'):
\edef\pgfkeys@tempargs{\noexpand\pgfkeysvalueof{#1/.@@body}}%
\def\pgfkeys@temp{\pgfkeysdef{#1}}%
\expandafter\pgfkeys@temp\expandafter{\pgfkeys@tempargs##1}%
\pgfkeyssetvalue{#1/.@body}{#3}%
}
\ifx\pgfkeysdefnargs@\forest@original@pgfkeysdefnargs@
\let\pgfkeysdefnargs@\forest@patched@pgfkeysdefnargs@
\fi
\def\forest@original@pgfpointintersectionoflines#1#2#3#4{%
{
%
% Compute orthogonal vector to #1--#2
%
\pgf@process{#2}%
\pgf@xa=\pgf@x%
\pgf@ya=\pgf@y%
\pgf@process{#1}%
\advance\pgf@xa by-\pgf@x%
\advance\pgf@ya by-\pgf@y%
\pgf@ya=-\pgf@ya%
% Normalise a bit
\c@pgf@counta=\pgf@xa%
\ifnum\c@pgf@counta<0\relax%
\c@pgf@counta=-\c@pgf@counta\relax%
\fi%
\c@pgf@countb=\pgf@ya%
\ifnum\c@pgf@countb<0\relax%
\c@pgf@countb=-\c@pgf@countb\relax%
\fi%
\advance\c@pgf@counta by\c@pgf@countb\relax%
\divide\c@pgf@counta by 65536\relax%
\ifnum\c@pgf@counta>0\relax%
\divide\pgf@xa by\c@pgf@counta\relax%
\divide\pgf@ya by\c@pgf@counta\relax%
\fi%
%
% Compute projection
%
\pgf@xc=\pgf@sys@tonumber{\pgf@ya}\pgf@x%
\advance\pgf@xc by\pgf@sys@tonumber{\pgf@xa}\pgf@y%
%
% The orthogonal vector is (\pgf@ya,\pgf@xa)
%
%
% Compute orthogonal vector to #3--#4
%
\pgf@process{#4}%
\pgf@xb=\pgf@x%
\pgf@yb=\pgf@y%
\pgf@process{#3}%
\advance\pgf@xb by-\pgf@x%
\advance\pgf@yb by-\pgf@y%
\pgf@yb=-\pgf@yb%
% Normalise a bit
\c@pgf@counta=\pgf@xb%
\ifnum\c@pgf@counta<0\relax%
\c@pgf@counta=-\c@pgf@counta\relax%
\fi%
\c@pgf@countb=\pgf@yb%
\ifnum\c@pgf@countb<0\relax%
\c@pgf@countb=-\c@pgf@countb\relax%
\fi%
\advance\c@pgf@counta by\c@pgf@countb\relax%
\divide\c@pgf@counta by 65536\relax%
\ifnum\c@pgf@counta>0\relax%
\divide\pgf@xb by\c@pgf@counta\relax%
\divide\pgf@yb by\c@pgf@counta\relax%
\fi%
%
% Compute projection
%
\pgf@yc=\pgf@sys@tonumber{\pgf@yb}\pgf@x%
\advance\pgf@yc by\pgf@sys@tonumber{\pgf@xb}\pgf@y%
%
% The orthogonal vector is (\pgf@yb,\pgf@xb)
%
% Setup transformation matrx (this is just to use the matrix
% inversion)
%
\pgfsettransform{{\pgf@sys@tonumber\pgf@ya}{\pgf@sys@tonumber\pgf@yb}{\pgf@sys@tonumber\pgf@xa}{\pgf@sys@tonumber\pgf@xb}{0pt}{0pt}}%
\pgftransforminvert%
\pgf@process{\pgfpointtransformed{\pgfpoint{\pgf@xc}{\pgf@yc}}}%
}%
}
\def\forest@patched@pgfpointintersectionoflines#1#2#3#4{%
{% added the percent sign in this line
%
% Compute orthogonal vector to #1--#2
%
\pgf@process{#2}%
\pgf@xa=\pgf@x%
\pgf@ya=\pgf@y%
\pgf@process{#1}%
\advance\pgf@xa by-\pgf@x%
\advance\pgf@ya by-\pgf@y%
\pgf@ya=-\pgf@ya%
% Normalise a bit
\c@pgf@counta=\pgf@xa%
\ifnum\c@pgf@counta<0\relax%
\c@pgf@counta=-\c@pgf@counta\relax%
\fi%
\c@pgf@countb=\pgf@ya%
\ifnum\c@pgf@countb<0\relax%
\c@pgf@countb=-\c@pgf@countb\relax%
\fi%
\advance\c@pgf@counta by\c@pgf@countb\relax%
\divide\c@pgf@counta by 65536\relax%
\ifnum\c@pgf@counta>0\relax%
\divide\pgf@xa by\c@pgf@counta\relax%
\divide\pgf@ya by\c@pgf@counta\relax%
\fi%
%
% Compute projection
%
\pgf@xc=\pgf@sys@tonumber{\pgf@ya}\pgf@x%
\advance\pgf@xc by\pgf@sys@tonumber{\pgf@xa}\pgf@y%
%
% The orthogonal vector is (\pgf@ya,\pgf@xa)
%
%
% Compute orthogonal vector to #3--#4
%
\pgf@process{#4}%
\pgf@xb=\pgf@x%
\pgf@yb=\pgf@y%
\pgf@process{#3}%
\advance\pgf@xb by-\pgf@x%
\advance\pgf@yb by-\pgf@y%
\pgf@yb=-\pgf@yb%
% Normalise a bit
\c@pgf@counta=\pgf@xb%
\ifnum\c@pgf@counta<0\relax%
\c@pgf@counta=-\c@pgf@counta\relax%
\fi%
\c@pgf@countb=\pgf@yb%
\ifnum\c@pgf@countb<0\relax%
\c@pgf@countb=-\c@pgf@countb\relax%
\fi%
\advance\c@pgf@counta by\c@pgf@countb\relax%
\divide\c@pgf@counta by 65536\relax%
\ifnum\c@pgf@counta>0\relax%
\divide\pgf@xb by\c@pgf@counta\relax%
\divide\pgf@yb by\c@pgf@counta\relax%
\fi%
%
% Compute projection
%
\pgf@yc=\pgf@sys@tonumber{\pgf@yb}\pgf@x%
\advance\pgf@yc by\pgf@sys@tonumber{\pgf@xb}\pgf@y%
%
% The orthogonal vector is (\pgf@yb,\pgf@xb)
%
% Setup transformation matrx (this is just to use the matrix
% inversion)
%
\pgfsettransform{{\pgf@sys@tonumber\pgf@ya}{\pgf@sys@tonumber\pgf@yb}{\pgf@sys@tonumber\pgf@xa}{\pgf@sys@tonumber\pgf@xb}{0pt}{0pt}}%
\pgftransforminvert%
\pgf@process{\pgfpointtransformed{\pgfpoint{\pgf@xc}{\pgf@yc}}}%
}%
}
\ifx\pgfpointintersectionoflines\forest@original@pgfpointintersectionoflines
\let\pgfpointintersectionoflines\forest@patched@pgfpointintersectionoflines
\fi
% hah: hacking forest --- it depends on some details of PGF implementation
\def\forest@pgf@notyetpositioned{not yet positionedPGFINTERNAL}%
\expandafter\ifstrequal\expandafter{\pgfversion}{2.10}{%
\def\forest@pgf@notyetpositioned{not yet positioned@}%
}{}
\long\def\@escapeif#1#2\fi{\fi#1}
\long\def\@escapeifif#1#2\fi#3\fi{\fi\fi#1}
\def\newloop#1{%
\count@=\escapechar
\escapechar=-1
\expandafter\newloop@parse@loopname\string#1\newloop@end
\escapechar=\count@
}%
{\lccode`7=`l \lccode`8=`o \lccode`9=`p
\lowercase{\gdef\newloop@parse@loopname#17889#2\newloop@end{%
\edef\newloop@marshal{%
\noexpand\csdef{#1loop#2}####1\expandafter\noexpand\csname #1repeat#2\endcsname{%
\noexpand\csdef{#1iterate#2}{####1\relax\noexpand\expandafter\expandafter\noexpand\csname#1iterate#2\endcsname\noexpand\fi}%
\expandafter\noexpand\csname#1iterate#2\endcsname
\let\expandafter\noexpand\csname#1iterate#2\endcsname\relax
}%
}%
\newloop@marshal
}%
}%
}%
\newloop\forest@loop
\newloop\forest@loopa
\newloop\forest@loopb
\newloop\forest@loopc
\newloop\forest@sort@loop
\newloop\forest@sort@loopA
\newdimen\forest@temp@dimen
\newcount\forest@temp@count
\newcount\forest@n
\newif\ifforest@temp
\newcount\forest@temp@global@count
\def\apptotoks#1#2{\expandafter#1\expandafter{\the#1#2}}
\long\def\lapptotoks#1#2{\expandafter#1\expandafter{\the#1#2}}
\def\eapptotoks#1#2{\edef\pot@temp{#2}\expandafter\expandafter\expandafter#1\expandafter\expandafter\expandafter{\expandafter\the\expandafter#1\pot@temp}}
\def\pretotoks#1#2{\toks@={#2}\expandafter\expandafter\expandafter#1\expandafter\expandafter\expandafter{\expandafter\the\expandafter\toks@\the#1}}
\def\epretotoks#1#2{\edef\pot@temp{#2}\expandafter\expandafter\expandafter#1\expandafter\expandafter\expandafter{\expandafter\pot@temp\the#1}}
\def\gapptotoks#1#2{\expandafter\global\expandafter#1\expandafter{\the#1#2}}
\def\xapptotoks#1#2{\edef\pot@temp{#2}\expandafter\expandafter\expandafter\global\expandafter\expandafter\expandafter#1\expandafter\expandafter\expandafter{\expandafter\the\expandafter#1\pot@temp}}
\def\gpretotoks#1#2{\toks@={#2}\expandafter\expandafter\expandafter\global\expandafter\expandafter\expandafter#1\expandafter\expandafter\expandafter{\expandafter\the\expandafter\toks@\the#1}}
\def\xpretotoks#1#2{\edef\pot@temp{#2}\expandafter\expandafter\expandafter\global\expandafter\expandafter\expandafter#1\expandafter\expandafter\expandafter{\expandafter\pot@temp\the#1}}
\def\expandnumberarg#1#2{\expandafter#1\expandafter{\number#2}}
\def\expandtwonumberargs#1#2#3{%
\expandafter\expandtwonumberargs@\expandafter#1\expandafter{\number#3}{#2}}
\def\expandtwonumberargs@#1#2#3{%
\expandafter#1\expandafter{\number#3}{#2}}
\def\expandthreenumberargs#1#2#3#4{%
\expandafter\expandthreenumberargs@\expandafter#1\expandafter{\number#4}{#2}{#3}}
\def\expandthreenumberargs@#1#2#3#4{%
\expandafter\expandthreenumberargs@@\expandafter#1\expandafter{\number#4}{#2}{#3}}
\def\expandthreenumberargs@@#1#2#3#4{%
\expandafter#1\expandafter{\number#4}{#2}{#3}}
\def\forest@convert@others@to@underscores#1#2{%
\def\forest@cotu@result{}%
\forest@cotu#1\forest@end
\let#2\forest@cotu@result
}
\def\forest@cotu{%
\futurelet\forest@cotu@nextchar\forest@cotu@checkforspace
}
\def\forest@cotu@checkforspace{%
\expandafter\ifx\space\forest@cotu@nextchar
\let\forest@cotu@next\forest@cotu@havespace
\else
\let\forest@cotu@next\forest@cotu@nospace
\fi
\forest@cotu@next
}
\def\forest@cotu@havespace#1{%
\appto\forest@cotu@result{_}%
\forest@cotu#1%
}
\def\forest@cotu@nospace{%
\ifx\forest@cotu@nextchar\forest@end
\@escapeif\@gobble
\else
\@escapeif\forest@cotu@nospaceB
\fi
}
\def\forest@cotu@nospaceB{%
\ifcat\forest@cotu@nextchar a%
\let\forest@cotu@next\forest@cotu@have@alphanum
\else
\ifcat\forest@cotu@nextchar 0%
\let\forest@cotu@next\forest@cotu@have@alphanum
\else
\let\forest@cotu@next\forest@cotu@haveother
\fi
\fi
\forest@cotu@next
}
\def\forest@cotu@have@alphanum#1{%
\appto\forest@cotu@result{#1}%
\forest@cotu
}
\def\forest@cotu@haveother#1{%
\appto\forest@cotu@result{_}%
\forest@cotu
}
\def\forest@listedel#1#2{% #1 = list, #2 = item
\edef\forest@marshal{\noexpand\forest@listdel\noexpand#1{#2}}%
\forest@marshal
}
\def\forest@listcsdel#1#2{%
\expandafter\forest@listdel\csname #1\endcsname{#2}%
}
\def\forest@listcsedel#1#2{%
\expandafter\forest@listedel\csname #1\endcsname{#2}%
}
\edef\forest@restorelistsepcatcode{\noexpand\catcode`|\the\catcode`|\relax}%
\catcode`\|=3
\gdef\forest@listdel#1#2{%
\def\forest@listedel@A##1|#2|##2\forest@END{%
\forest@listedel@B##1|##2\forest@END%|
}%
\def\forest@listedel@B|##1\forest@END{%|
\def#1{##1}%
}%
\expandafter\forest@listedel@A\expandafter|#1\forest@END%|
}
\forest@restorelistsepcatcode
\def\forest@strip@braces#1{%
\forest@strip@braces@A#1\forest@strip@braces@preend\forest@strip@braces@end
}
\def\forest@strip@braces@A#1#2\forest@strip@braces@end{%
#1\ifx\forest@strip@braces@preend#2\else\@escapeif{\forest@strip@braces@A#2\forest@strip@braces@end}\fi
}
\def\forest@sort#1#2#3#4#5{%
\let\forest@sort@cmp#1\relax
\let\forest@sort@let#2\relax
\let\forest@sort@direction#3\relax
\forest@@sort{#4}{#5}%
}
\def\forest@quicksort@minarraylength{10000}
\def\forest@@sort#1#2{%
\ifnum#1<#2\relax\@escapeif{%
\forest@sort@m=#2
\advance\forest@sort@m -#1
\ifnum\forest@sort@m>\forest@quicksort@minarraylength\relax\@escapeif{%
\forest@quicksort{#1}{#2}%
}\else\@escapeif{%
\forest@insertionsort{#1}{#2}%
}\fi
}\fi
}
\newcount\forest@sort@m\newcount\forest@sort@k\newcount\forest@sort@p
\def\forest@sort@ascending{>}
\def\forest@sort@descending{<}
\def\forest@sort@cmp{%
\PackageError{sort}{You must define forest@sort@cmp function before calling
sort}{The macro must take two arguments, indices of the array
elements to be compared, and return '=' if the elements are equal
and '>'/'<' if the first is greater /less than the secong element.}%
}
\def\forest@sort@cmp@gt{\def\forest@sort@cmp@result{>}}
\def\forest@sort@cmp@lt{\def\forest@sort@cmp@result{<}}
\def\forest@sort@cmp@eq{\def\forest@sort@cmp@result{=}}
\def\forest@sort@let{%
\PackageError{sort}{You must define forest@sort@let function before calling
sort}{The macro must take two arguments, indices of the array:
element 2 must be copied onto element 1.}%
}
\def\forest@quicksort#1#2{%
\forest@sort@m=#2
\advance\forest@sort@m -#1
\ifodd\forest@sort@m\relax\advance\forest@sort@m1 \fi
\divide\forest@sort@m 2
\advance\forest@sort@m #1
\forest@sort@cmp{#1}{#2}%
\if\forest@sort@cmp@result=%
\forest@sort@p=#1
\else
\if\forest@sort@cmp@result>%
\forest@sort@p=#1\relax
\else
\forest@sort@p=#2\relax
\fi
\forest@sort@cmp{\the\forest@sort@p}{\the\forest@sort@m}%
\if\forest@sort@cmp@result<%
\else
\forest@sort@p=\the\forest@sort@m
\fi
\fi
\forest@sort@xch{#1}{\the\forest@sort@p}%
\forest@sort@m=#1\relax
\forest@sort@k=#1\relax
\forest@sort@loop
\ifnum\forest@sort@k<#2\relax
\advance\forest@sort@k 1
\forest@sort@cmp{#1}{\the\forest@sort@k}%
\ifx\forest@sort@direction\forest@sort@cmp@result
\advance\forest@sort@m 1
\forest@sort@xch{\the\forest@sort@m}{\the\forest@sort@k}
\fi
\forest@sort@repeat
\forest@sort@xch{#1}{\the\forest@sort@m}%
\forest@sort@k=\forest@sort@m
\advance\forest@sort@k -1
\advance\forest@sort@m 1
\edef\forest@sort@marshal{%
\noexpand\forest@@sort{#1}{\the\forest@sort@k}%
\noexpand\forest@@sort{\the\forest@sort@m}{#2}%
}%
\forest@sort@marshal
}
\def\forest@sort@xch#1#2{%
\forest@sort@let{aux}{#1}%
\forest@sort@let{#1}{#2}%
\forest@sort@let{#2}{aux}%
}
\def\forest@insertionsort#1#2{%
\forest@sort@m=#1
\edef\forest@insertionsort@low{#1}%
\forest@sort@loopA
\ifnum\forest@sort@m<#2
\advance\forest@sort@m 1
\forest@insertionsort@Qbody
\forest@sort@repeatA
}
\newif\ifforest@insertionsort@loop
\def\forest@insertionsort@Qbody{%
\forest@sort@let{aux}{\the\forest@sort@m}%
\forest@sort@k\forest@sort@m
\advance\forest@sort@k -1
\forest@insertionsort@looptrue
\forest@sort@loop
\ifforest@insertionsort@loop
\forest@insertionsort@qbody
\forest@sort@repeat
\advance\forest@sort@k 1
\forest@sort@let{\the\forest@sort@k}{aux}%
}
\def\forest@insertionsort@qbody{%
\forest@sort@cmp{\the\forest@sort@k}{aux}%
\ifx\forest@sort@direction\forest@sort@cmp@result\relax
\forest@sort@p=\forest@sort@k
\advance\forest@sort@p 1
\forest@sort@let{\the\forest@sort@p}{\the\forest@sort@k}%
\advance\forest@sort@k -1
\ifnum\forest@sort@k<\forest@insertionsort@low\relax
\forest@insertionsort@loopfalse
\fi
\else
\forest@insertionsort@loopfalse
\fi
}
\def\forest@sort@cmpnumcs#1#2{%
\ifnum\csname#1\endcsname>\csname#2\endcsname\relax
\forest@sort@cmp@gt
\else
\ifnum\csname#1\endcsname<\csname#2\endcsname\relax
\forest@sort@cmp@lt
\else
\forest@sort@cmp@eq
\fi
\fi
}
\def\forest@sort@cmpdimcs#1#2{%
\ifdim\csname#1\endcsname>\csname#2\endcsname\relax
\forest@sort@cmp@gt
\else
\ifdim\csname#1\endcsname<\csname#2\endcsname\relax
\forest@sort@cmp@lt
\else
\forest@sort@cmp@eq
\fi
\fi
}
\def\forest@sort@cmptwodimcs#1#2#3#4{%
\ifdim\csname#1\endcsname>\csname#3\endcsname\relax
\forest@sort@cmp@gt
\else
\ifdim\csname#1\endcsname<\csname#3\endcsname\relax
\forest@sort@cmp@lt
\else
\ifdim\csname#2\endcsname>\csname#4\endcsname\relax
\forest@sort@cmp@gt
\else
\ifdim\csname#2\endcsname<\csname#4\endcsname\relax
\forest@sort@cmp@lt
\else
\forest@sort@cmp@eq
\fi
\fi
\fi
\fi
}
\def\forest@reversearray#1#2#3{%
\let\forest@sort@let#1%
\c@pgf@countc=#2
\c@pgf@countd=#3
\advance\c@pgf@countd -1
\forest@loopa
\ifnum\c@pgf@countc<\c@pgf@countd\relax
\forest@sort@xch{\the\c@pgf@countc}{\the\c@pgf@countd}%
\advance\c@pgf@countc 1
\advance\c@pgf@countd -1
\forest@repeata
}
\def\bracketset#1{\pgfqkeys{/bracket}{#1}}%
\bracketset{%
/bracket/.is family,
/handlers/.let/.style={\pgfkeyscurrentpath/.code={\let#1##1}},
opening bracket/.let=\bracket@openingBracket,
closing bracket/.let=\bracket@closingBracket,
action character/.let=\bracket@actionCharacter,
opening bracket=[,
closing bracket=],
action character,
new node/.code n args={3}{% #1=preamble, #2=node spec, #3=cs receiving the id
\forest@node@new#3%
\forestOset{#3}{given options}{content'=#2}%
\ifblank{#1}{}{%
\forestOpreto{#3}{given options}{#1,}%
}%
},
set afterthought/.code 2 args={% #1=node id, #2=afterthought
\ifblank{#2}{}{\forestOappto{#1}{given options}{,afterthought={#2}}}%
}
}
\newtoks\bracket@content
\newtoks\bracket@afterthought
\def\bracketParse#1#2={%
\def\bracketEndParsingHook{#1}%
\def\bracket@saveRootNodeTo{#2}%
\bracket@content={}%
\bracket@afterthought={}%
\let\bracket@state\bracket@state@starting
\bracket@ignorespacestrue
\bracket@expandtokensfalse
\def\bracket@parentNode{0}%
\def\bracket@rootNode{0}%
\def\bracket@newNode{0}%
\def\bracket@afterthoughtNode{0}%
\bracket@Parse
}
\def\bracketResume{\bracket@Parse}%
\def\bracket@Parse{%
\futurelet\bracket@next@token\bracket@Parse@checkForSpace
}
\def\bracket@Parse@checkForSpace{%
\expandafter\ifx\space\bracket@next@token\@escapeif{%
\ifbracket@ignorespaces\else
\bracket@haveSpacetrue
\fi
\expandafter\bracket@Parse\romannumeral-`0%
}\else\@escapeif{%
\bracket@Parse@maybeexpand
}\fi
}
\newif\ifbracket@expandtokens
\def\bracket@Parse@maybeexpand{%
\ifbracket@expandtokens\@escapeif{%
\expandafter\bracket@Parse@peekAhead\romannumeral-`0%
}\else\@escapeif{%
\bracket@Parse@peekAhead
}\fi
}
\def\bracket@Parse@peekAhead{%
\futurelet\bracket@next@token\bracket@Parse@checkForTeXGroup
}
\def\bracket@Parse@checkForTeXGroup{%
\ifx\bracket@next@token\bgroup%
\@escapeif{\bracket@Parse@appendGroup}%
\else
\@escapeif{\bracket@Parse@token}%
\fi
}
\long\def\bracket@Parse@token#1{%
\ifx#1\bracket@openingBracket
\@escapeif{\bracket@Parse@openingBracketFound}%
\else
\@escapeif{%
\ifx#1\bracket@closingBracket
\@escapeif{\bracket@Parse@closingBracketFound}%
\else
\@escapeif{%
\ifx#1\bracket@actionCharacter
\@escapeif{\futurelet\bracket@next@token\bracket@Parse@actionCharacterFound}%
\else
\@escapeif{\bracket@Parse@appendToken#1}%
\fi
}%
\fi
}%
\fi
}
\newif\ifbracket@haveSpace
\newif\ifbracket@ignorespaces
\def\bracket@Parse@appendSpace{%
\ifbracket@haveSpace
\ifcase\bracket@state\relax
\eapptotoks\bracket@content\space
\or
\eapptotoks\bracket@afterthought\space
\or
\eapptotoks\bracket@afterthought\space
\fi
\bracket@haveSpacefalse
\fi
}
\long\def\bracket@Parse@appendToken#1{%
\bracket@Parse@appendSpace
\ifcase\bracket@state\relax
\lapptotoks\bracket@content{#1}%
\or
\lapptotoks\bracket@afterthought{#1}%
\or
\lapptotoks\bracket@afterthought{#1}%
\fi
\bracket@ignorespacesfalse
\bracket@Parse
}
\def\bracket@Parse@appendGroup#1{%
\bracket@Parse@appendSpace
\ifcase\bracket@state\relax
\apptotoks\bracket@content{{#1}}%
\or
\apptotoks\bracket@afterthought{{#1}}%
\or
\apptotoks\bracket@afterthought{{#1}}%
\fi
\bracket@ignorespacesfalse
\bracket@Parse
}
\def\bracket@state@inContent{0}
\def\bracket@state@inAfterthought{1}
\def\bracket@state@starting{2}
\def\bracket@Parse@openingBracketFound{%
\bracket@haveSpacefalse
\ifcase\bracket@state\relax% in content [ ... [
\@escapeif{%
\bracket@createNode
\ifnum\bracket@parentNode=0 \else
\forest@node@Append{\bracket@parentNode}{\bracket@newNode}%
\fi
\let\bracket@parentNode\bracket@newNode
\bracket@Parse
}%
\or % in afterthought ] ... [
\@escapeif{%
\bracket@addAfterthought
\let\bracket@state\bracket@state@inContent
\bracket@Parse
}%
\else % starting
\@escapeif{%
\let\bracket@state\bracket@state@inContent
\bracket@Parse
}%
\fi
}
\def\bracket@Parse@closingBracketFound{%
\bracket@haveSpacefalse
\ifcase\bracket@state\relax % in content [ ... ]
\@escapeif{%
\bracket@createNode
\ifnum\bracket@parentNode=0
\@escapeif\bracketEndParsingHook
\else
\@escapeif{%
\let\bracket@afterthoughtNode\bracket@newNode
\let\bracket@state\bracket@state@inAfterthought
\forest@node@Append{\bracket@parentNode}{\bracket@newNode}%
\bracket@Parse
}%
\fi
}%
\or % in afterthought ] ... ]
\@escapeif{%
\bracket@addAfterthought
\let\bracket@afterthoughtNode\bracket@parentNode
\edef\bracket@parentNode{\forestOve{\bracket@parentNode}{@parent}}%
\ifnum\bracket@parentNode=0
\expandafter\bracketEndParsingHook
\else
\expandafter\bracket@Parse
\fi
}%
\else % starting
\PackageError{forest}{You're attempting to start a bracket representation
with a closing bracket}{}%
\fi
}
\def\bracket@Parse@actionCharacterFound{%
\ifx\bracket@next@token\bgroup\@escapeif{%
\bracket@Parse@action@expandgroup
}\else\@escapeif{%
\bracket@Parse@action@notagroup
}\fi
}
\def\bracket@Parse@action@expandgroup#1{%
\edef\bracket@Parse@action@expandgroup@macro{#1}%
\expandafter\bracket@Parse\bracket@Parse@action@expandgroup@macro
}
\let\bracket@action@fullyexpandCharacter+
\let\bracket@action@dontexpandCharacter-
\let\bracket@action@executeCharacter!
\def\bracket@Parse@action@notagroup#1{%
\ifx#1\bracket@action@fullyexpandCharacter\@escapeif{%
\bracket@expandtokenstrue\bracket@Parse
}\else\@escapeif{%
\ifx#1\bracket@action@dontexpandCharacter\@escapeif{%
\bracket@expandtokensfalse\bracket@Parse
}\else\@escapeif{%
\ifx#10\@escapeif{%
\bracket@Parse@appendToken
}\else\@escapeif{%
\ifx#1\bracket@actionCharacter
\else\@escapeif{%
\expandafter\bracket@Parse#1%
}\fi
}\fi
}\fi
}\fi
}
\def\bracket@createNode{%
\ifnum\bracket@rootNode=0
% root node
\bracketset{new node/.expanded=%
{\the\bracket@afterthought}%
{\the\bracket@content}%
\noexpand\bracket@newNode
}%
\bracket@afterthought={}%
\let\bracket@rootNode\bracket@newNode
\expandafter\let\bracket@saveRootNodeTo\bracket@newNode
\else
% other nodes
\bracketset{new node/.expanded=%
{}%
{\the\bracket@content}%
\noexpand\bracket@newNode
}%
\fi
\bracket@content={}%
}
\def\bracket@addAfterthought{%
\bracketset{%
set afterthought/.expanded={\bracket@afterthoughtNode}{\the\bracket@afterthought}%
}%
\bracket@afterthought={}%
}
% full expansion expands precisely to the value
\def\forestov#1{\expandafter\expandafter\expandafter\expandonce
\pgfkeysvalueof{/forest/@node/\forest@cn/#1}}
% full expansion expands all the way
\def\forestove#1{\pgfkeysvalueof{/forest/@node/\forest@cn/#1}}
% full expansion expands to the cs holding the value
\def\forestom#1{\expandafter\expandonce\expandafter{\pgfkeysvalueof{/forest/@node/\forest@cn/#1}}}\def\forestoget#1#2{\pgfkeysgetvalue{/forest/@node/\forest@cn/#1}{#2}}
\def\forestoget#1#2{\pgfkeysgetvalue{/forest/@node/\forest@cn/#1}{#2}}
\def\forestolet#1#2{\pgfkeyslet{/forest/@node/\forest@cn/#1}{#2}}
\def\forestoset#1#2{\pgfkeyssetvalue{/forest/@node/\forest@cn/#1}{#2}}
\def\forestoeset#1#2{%
\edef\forest@option@temp{%
\noexpand\pgfkeyssetvalue{/forest/@node/\forest@cn/#1}{#2}%
}\forest@option@temp
}
\def\forestoappto#1#2{%
\forestoeset{#1}{\forestov{#1}\unexpanded{#2}}%
}
\def\forestoifdefined#1#2#3{%
\pgfkeysifdefined{/forest/@node/\forest@cn/#1}{#2}{#3}%
}
\let\forestoption\forestov
\let\foresteoption\forestove
\def\forestOv#1#2{\expandafter\expandafter\expandafter\expandonce
\pgfkeysvalueof{/forest/@node/#1/#2}}
\def\forestOve#1#2{\pgfkeysvalueof{/forest/@node/#1/#2}}
% full expansion expands to the cs holding the value
\def\forestOm#1#2{\expandafter\expandonce\expandafter{\pgfkeysvalueof{/forest/@node/#1/#2}}}
\def\forestOget#1#2#3{\pgfkeysgetvalue{/forest/@node/#1/#2}{#3}}
\def\forestOget#1#2#3{\pgfkeysgetvalue{/forest/@node/#1/#2}{#3}}
\def\forestOlet#1#2#3{\pgfkeyslet{/forest/@node/#1/#2}{#3}}
\def\forestOset#1#2#3{\pgfkeyssetvalue{/forest/@node/#1/#2}{#3}}
\def\forestOeset#1#2#3{%
\edef\forestoption@temp{%
\noexpand\pgfkeyssetvalue{/forest/@node/#1/#2}{#3}%
}\forestoption@temp
}
\def\forestOappto#1#2#3{%
\forestOeset{#1}{#2}{\forestOv{#1}{#2}\unexpanded{#3}}%
}
\def\forestOeappto#1#2#3{%
\forestOeset{#1}{#2}{\forestOv{#1}{#2}#3}%
}
\def\forestOpreto#1#2#3{%
\forestOeset{#1}{#2}{\unexpanded{#3}\forestOv{#1}{#2}}%
}
\def\forestOepreto#1#2#3{%
\forestOeset{#1}{#2}{#3\forestOv{#1}{#2}}%
}
\def\forestOifdefined#1#2#3#4{%
\pgfkeysifdefined{/forest/@node/#1/#2}{#3}{#4}%
}
\def\forestOletO#1#2#3#4{% option #2 of node #1 <-- option #4 of node #3
\forestOget{#3}{#4}\forestoption@temp
\forestOlet{#1}{#2}\forestoption@temp}
\def\forestOleto#1#2#3{%
\forestoget{#3}\forestoption@temp
\forestOlet{#1}{#2}\forestoption@temp}
\def\forestoletO#1#2#3{%
\forestOget{#2}{#3}\forestoption@temp
\forestolet{#1}\forestoption@temp}
\def\forestoleto#1#2{%
\forestoget{#2}\forestoption@temp
\forestolet{#1}\forestoption@temp}
\def\forest@node@init{%
\forestoset{@parent}{0}%
\forestoset{@previous}{0}% previous sibling
\forestoset{@next}{0}% next sibling
\forestoset{@first}{0}% primary child
\forestoset{@last}{0}% last child
}
\def\forestoinit#1{%
\pgfkeysgetvalue{/forest/#1}\forestoinit@temp
\forestolet{#1}\forestoinit@temp
}
\newcount\forest@node@maxid
\def\forest@node@new#1{% #1 = cs receiving the new node id
\advance\forest@node@maxid1
\forest@fornode{\the\forest@node@maxid}{%
\forest@node@init
\forest@node@setname{node@\forest@cn}%
\forest@initializefromstandardnode
\edef#1{\forest@cn}%
}%
}
\let\forestoinit@orig\forestoinit
\def\forest@node@copy#1#2{% #1=from node id, cs receiving the new node id
\advance\forest@node@maxid1
\def\forestoinit##1{\forestoletO{##1}{#1}{##1}}%
\forest@fornode{\the\forest@node@maxid}{%
\forest@node@init
\forest@node@setname{\forest@copy@name@template{\forestOve{#1}{name}}}%
\edef#2{\forest@cn}%
}%
\let\forestoinit\forestoinit@orig
}
\forestset{
copy name template/.code={\def\forest@copy@name@template##1{#1}},
copy name template/.default={node@\the\forest@node@maxid},
copy name template
}
\def\forest@tree@copy#1#2{% #1=from node id, #2=cs receiving the new node id
\forest@node@copy{#1}\forest@node@copy@temp@id
\forest@fornode{\forest@node@copy@temp@id}{%
\expandafter\forest@tree@copy@\expandafter{\forest@node@copy@temp@id}{#1}%
\edef#2{\forest@cn}%
}%
}
\def\forest@tree@copy@#1#2{%
\forest@node@Foreachchild{#2}{%
\expandafter\forest@tree@copy\expandafter{\forest@cn}\forest@node@copy@temp@childid
\forest@node@Append{#1}{\forest@node@copy@temp@childid}%
}%
}
\def\forest@cn{0}
\forest@node@init
\def\forest@node@append#1{\expandtwonumberargs\forest@node@Append{\forest@cn}{#1}}
\def\forest@node@prepend#1{\expandtwonumberargs\forest@node@Insertafter{\forest@cn}{#1}{0}}
\def\forest@node@insertafter#1#2{%
\expandthreenumberargs\forest@node@Insertafter{\forest@cn}{#1}{#2}}
\def\forest@node@insertbefore#1#2{%
\expandthreenumberargs\forest@node@Insertafter{\forest@cn}{#1}{\forestOve{#2}{@previous}}%
}
\def\forest@node@remove{\expandnumberarg\forest@node@Remove{\forest@cn}}
\def\forest@node@Append#1#2{\expandtwonumberargs\forest@node@Append@{#1}{#2}}
\def\forest@node@Prepend#1#2{\expandtwonumberargs\forest@node@Insertafter{#1}{#2}{0}}
\def\forest@node@Insertafter#1#2#3{% #2 is inserted after #3
\expandthreenumberargs\forest@node@Insertafter@{#1}{#2}{#3}%
}
\def\forest@node@Insertbefore#1#2#3{% #2 is inserted before #3
\expandthreenumberargs\forest@node@Insertafter{#1}{#2}{\forestOve{#3}{@previous}}%
}
\def\forest@node@Remove#1{\expandnumberarg\forest@node@Remove@{#1}}
\def\forest@node@Insertafter@#1#2#3{%
\ifnum\forestOve{#2}{@parent}=0
\else
\PackageError{forest}{Insertafter(#1,#2,#3):
node #2 already has a parent (\forestOve{#2}{@parent})}{}%
\fi
\ifnum#3=0
\else
\ifnum#1=\forestOve{#3}{@parent}
\else
\PackageError{forest}{Insertafter(#1,#2,#3): node #1 is not the parent of the
intended sibling #3 (with parent \forestOve{#3}{@parent})}{}%
\fi
\fi
\forestOeset{#2}{@parent}{#1}%
\forestOeset{#2}{@previous}{#3}%
\ifnum#3=0
\forestOget{#1}{@first}\forest@node@temp
\forestOeset{#1}{@first}{#2}%
\else
\forestOget{#3}{@next}\forest@node@temp
\forestOeset{#3}{@next}{#2}%
\fi
\forestOeset{#2}{@next}{\forest@node@temp}%
\ifnum\forest@node@temp=0
\forestOeset{#1}{@last}{#2}%
\else
\forestOeset{\forest@node@temp}{@previous}{#2}%
\fi
}
\def\forest@node@Append@#1#2{%
\ifnum\forestOve{#2}{@parent}=0
\else
\PackageError{forest}{Append(#1,#2):
node #2 already has a parent (\forestOve{#2}{@parent})}{}%