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forest.sty
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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) 2012-2017 Saso Zivanovic
%% (Sa\v{s}o \v{Z}ivanovi\'{c})
%%
%% 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 `author-maintained'.
%%
%% This work consists of the following files:
%% - forest.dtx: central sources (with rudimentary implementation documentation)
%% - forest-libs.dtx: sources and documentation for libraries
%% + forest-compat.sty: sources/runtime for compatibility mode
%% - forest.ins: produces derived runtime .sty files
%% + forest.sty: main package
%% + forest-lib-*.sty: libraries (for the list, see forest.ins)
%% - forest-doc.tex: central documentation
%% - forest-doc.sty: private package needed to compile the documentation
%% - forest-index.dtx: sources of indexing package used in the documentation,
%% and also part of the documentation itself
%% - forest-doc.ins: produces derived .sty files needed to compile the documentation
%% - forest-index.sty
%% - forest-doc.ist: index style file needed to compile the documentation
%% - forest.pdf: documentation of core package implementation
%% - forest-doc.pdf: user's guide
%% - README
%% - LICENCE
%% To use the package, only the files marked with + need to be installed.
%%
\ProvidesPackage{forest}[2020/05/06 v2.1.5+wip Drawing (linguistic) trees]
\RequirePackage{tikz}[2013/12/13]
\usetikzlibrary{shapes}
\usetikzlibrary{fit}
\usetikzlibrary{calc}
\usepgflibrary{intersections}
\RequirePackage{pgfopts}
\RequirePackage{etoolbox}[2010/08/21]
\RequirePackage{elocalloc}% for \locbox
\RequirePackage{environ}
\RequirePackage{xparse}
\RequirePackage{inlinedef}
\newtoks\ID@usercommands{}
\newcommand\NewInlineCommand[3][0]{%
\newcommand#2[#1]{#3}%
\ID@usercommands\xa{%
\the\ID@usercommands
\ifx\@foo#2%
\def\next{\ID@expandunsafe#2}%
\fi
}%
}
\def\@ExpandIfTF#1{%
\csname
% I'm not 100% sure if this plays well in every situation
\csname if#1\endcsname
@firstoftwo%
\else
@secondoftwo%
\fi
\endcsname
}
\patchcmd{\ID@switch}
{\ifcat\noexpand\@foo\space}
{\the\ID@usercommands\ifcat\noexpand\@foo\space}
{%
\NewInlineCommand[2]\ExpandIfT{%
\MultiExpand{3}{%
\@ExpandIfTF{#1}{#2}{}%
}%
}
\NewInlineCommand[2]\ExpandIfF{%
\MultiExpand{3}{%
\@ExpandIfTF{#1}{}{#2}%
}%
}
\NewInlineCommand[3]\ExpandIfTF{%
\MultiExpand{3}{%
\@ExpandIfTF{#1}{#2}{#3}%
}%
}%
\newcommand\InlineNoDef[1]{%
\begingroup
% Define a few ``quarks''
\def\Expand{\Expand}\def\Super{\Super}%
\def\UnsafeExpand{\UnsafeExpand}\def\MultiExpand{\MultiExpand}%
\def\Recurse{\Recurse}\def\NoExpand{\NoExpand}%
\def\Q@END{\Q@END}%
% Define a toks register
\ID@toks{}%
% Signal that we need to look for a star
\@testtrue\ID@starfalse\ID@starstarfalse\ID@bangfalse
% Start scanning for \def or \gdef
\ID@scan#1\Q@END{}%
\expandafter\endgroup
%\expandafter\@firstofone
\the\ID@toks
}%
}%
{%
\PackageWarning{forest}{Could not patch inlinedef! Disabling it. Except in some special situations (nested arrays), stuff will probably still work, but there's no guarantee. Please report this situation to the author (but check first if a new version already exists).}{}%
\let\Inline\relax
\def\Expand#1{#1}%
\def\MultiExpand#1#2{#2}%
\def\InlineNoDef#1{#1}%
\def\ExpandIfT#1#2{\@ExpandIfTF{#1}{#2}{}}%
\def\ExpandIfF#1#2{\@ExpandIfTF{#1}{}{#2}}%
\def\ExpandIfTF#1#2#3{\@ExpandIfTF{#1}{#2}{#3}}%
}
\pgfkeys{/forest/.is family}
\def\forestset#1{\pgfqkeys{/forest}{#1}}
\newif\ifforest@external@
\newif\ifforesttikzcshack
\newif\ifforest@install@keys@to@tikz@path@
\newif\ifforestdebugnodewalks
\newif\ifforestdebugdynamics
\newif\ifforestdebugprocess
\newif\ifforestdebugtemp
\newif\ifforestdebug
\def\forest@compat{}
\forestset{package@options/.cd,
external/.is if=forest@external@,
tikzcshack/.is if=foresttikzcshack,
tikzinstallkeys/.is if=forest@install@keys@to@tikz@path@,
compat/.code={\appto\forest@compat{,#1}},
compat/.default=most,
.unknown/.code={% load library
\eappto\forest@loadlibrarieslater{%
\noexpand\useforestlibrary{\pgfkeyscurrentname}%
\noexpand\forestapplylibrarydefaults{\pgfkeyscurrentname}%
}%
},
debug/.code={\forestdebugtrue\pgfqkeys{/forest/package@options/debug}{#1}},
debug/.default={nodewalks,dynamics,process},
debug/nodewalks/.is if=forestdebugnodewalks,
debug/dynamics/.is if=forestdebugdynamics,
debug/process/.is if=forestdebugprocess,
}
\forest@install@keys@to@tikz@path@true
\foresttikzcshacktrue
\def\forest@loadlibrarieslater{}
\AtEndOfPackage{\forest@loadlibrarieslater}
\NewDocumentCommand\useforestlibrary{s O{} m}{%
\def\useforestlibrary@@##1{\useforestlibrary@{#2}{##1}}%
\forcsvlist\useforestlibrary@@{#3}%
\IfBooleanT{#1}{\forestapplylibrarydefaults{#3}}%
}
\def\useforestlibrary@#1#2{%
\RequirePackage[#1]{forest-lib-#2}%
\csuse{forest@compat@libraries@#2}%
}
\def\forestapplylibrarydefaults#1{\forcsvlist\forestapplylibrarydefaults@{#1}}
\def\forestapplylibrarydefaults@#1{\forestset{libraries/#1/defaults/.try}}
\NewDocumentCommand\ProvidesForestLibrary{m O{}}{%
\ProvidesPackage{forest-lib-#1}[#2]%
\csdef{forest@libraries@loaded@#1}{}%
}
\def\forest@iflibraryloaded#1#2#3{\ifcsdef{forest@libraries@loaded@#1}{#2}{#3}}
\ProcessPgfPackageOptions{/forest/package@options}
\def\forest@patch#1#2#3#4#5{%
% #1 = cs to be patched
% %2 = purpose of the patch
% #3 = macro arguments
% #4 = original code
% #5 = patched code
\csdef{forest@original@#1}#3{#4}%
\csdef{forest@patched@#1}#3{#5}%
\ifcsequal{#1}{forest@original@#1}{%
\csletcs{#1}{forest@patched@#1}%
}{%
\ifcsequal{#1}{forest@patched@#1}{% all is good, the patch is in!
}{%
\PackageWarning{forest}{Failed patching '\expandafter\string\csname #1\endcsname'. Purpose of the patch: #2}%
}%
}%
}
\forest@patch{pgfgettransform}{fix a leaking space}{#1}{%
\edef#1{{\pgf@pt@aa}{\pgf@pt@ab}{\pgf@pt@ba}{\pgf@pt@bb}{\the\pgf@pt@x}{\the\pgf@pt@y}}
}{%
\edef#1{{\pgf@pt@aa}{\pgf@pt@ab}{\pgf@pt@ba}{\pgf@pt@bb}{\the\pgf@pt@x}{\the\pgf@pt@y}}%
}
\def\forest@empty{}
\long\def\@escapeif#1#2\fi{\fi#1}
\long\def\@escapeifif#1#2\fi#3\fi{\fi\fi#1}
\long\def\@escapeififif#1#2\fi#3\fi#4\fi{\fi\fi\fi#1}
\def\forest@repeat@n@times#1{% #1=n, #2=code
\expandafter\forest@repeat@n@times@\expandafter{\the\numexpr#1}}
\def\forest@repeat@n@times@#1{%
\ifnum#1>0
\@escapeif{%
\expandafter\forest@repeat@n@times@@\expandafter{\the\numexpr#1-1}%
}%
\else
\expandafter\@gobble
\fi
}
\def\forest@repeat@n@times@@#1#2{%
#2%
\forest@repeat@n@times@{#1}{#2}%
}
\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
}%
}%
}%
\def\newsafeloop#1{%
\csdef{safeloop@#1}##1\saferepeat{%
\forest@temp@toks{##1}%
\csedef{safeiterate@#1}{%
\the\forest@temp@toks\relax
\noexpand\expandafter
\expandonce{\csname safeiterate@#1\endcsname}%
\noexpand\fi
}%
\csuse{safeiterate@#1}%
\advance\noexpand\safeloop@depth-1\relax
\cslet{safeiterate@#1}\relax
}%
\expandafter\newif\csname ifsafebreak@\the\safeloop@depth\endcsname
}%
\newcount\safeloop@depth
\def\safeloop{%
\advance\safeloop@depth1
\ifcsdef{safeloop@\the\safeloop@depth}{}{\expandafter\newsafeloop\expandafter{\the\safeloop@depth}}%
\csdef{safeloopn@\the\safeloop@depth}{0}%
\csuse{safeloop@\the\safeloop@depth}%
\csedef{safeloopn@\the\safeloop@depth}{\number\numexpr\csuse{safeloopn@\the\safeloop@depth}+1}%
}
\let\saferepeat\fi
\def\safeloopn{\csuse{safeloopn@\the\safeloop@depth}}%
\def\newsafeRKloop#1{%
\csdef{safeRKloop@#1}##1\safeRKrepeat{%
\forest@temp@toks{##1}%
\csedef{safeRKiterate@#1}{%
\the\forest@temp@toks\relax
\noexpand\expandafter
\expandonce{\csname safeRKiterate@#1\endcsname}%
\noexpand\fi
}%
\csuse{safeRKiterate@#1}%
\advance\noexpand\safeRKloop@depth-1\relax
\cslet{safeRKiterate@#1}\relax
}%
\expandafter\newif\csname ifsafeRKbreak@\the\safeRKloop@depth\endcsname
}%
\newcount\safeRKloop@depth
\def\safeRKloop{%
\advance\safeRKloop@depth1
\ifcsdef{safeRKloop@\the\safeRKloop@depth}{}{\expandafter\newsafeRKloop\expandafter{\the\safeRKloop@depth}}%
\csdef{safeRKloopn@\the\safeRKloop@depth}{0}%
\csuse{safeRKbreak@\the\safeRKloop@depth false}%
\csuse{safeRKloop@\the\safeRKloop@depth}%
\csedef{safeRKloopn@\the\safeRKloop@depth}{\number\numexpr\csuse{safeRKloopn@\the\safeRKloop@depth}+1}%
}
\let\safeRKrepeat\fi
\def\safeRKloopn{\csuse{safeRKloopn@\the\safeRKloop@depth}}%
\newloop\forest@loop
\newdimen\forest@temp@dimen
\newcount\forest@temp@count
\newcount\forest@n
\newif\ifforest@temp
\newcount\forest@temp@global@count
\newtoks\forest@temp@toks
\def\etotoks#1#2{\edef\pot@temp{#2}\expandafter#1\expandafter{\pot@temp}}
\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@first#1\forest@end
\let#2\forest@cotu@result
}
\def\forest@cotu{%
\let\forest@cotu@have@num\forest@cotu@have@alpha
\futurelet\forest@cotu@nextchar\forest@cotu@checkforspace
}
\def\forest@cotu@first{%
\let\forest@cotu@have@num\forest@cotu@haveother
\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#1{%
\ifcat#1a%
\let\forest@cotu@next\forest@cotu@have@alpha
\else
\if!\ifnum9<1#1!\fi
\let\forest@cotu@next\forest@cotu@have@num
\else
\let\forest@cotu@next\forest@cotu@haveother
\fi
\fi
\forest@cotu@next#1%
}
\def\forest@cotu@have@alpha#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@copycommandkey#1#2{% copies command of #1 into #2
\pgfkeysifdefined{#1/.@cmd}{}{%
\PackageError{forest}{Key #1 is not a command key}{}%
}%
\pgfkeysgetvalue{#1/.@cmd}\forest@temp
\pgfkeyslet{#2/.@cmd}\forest@temp
\pgfkeysifdefined{#1/.@args}{%
\pgfkeysgetvalue{#1/.@args}\forest@temp
\pgfkeyslet{#2/.@args}\forest@temp
}{}%
\pgfkeysifdefined{#1/.@body}{%
\pgfkeysgetvalue{#1/.@body}\forest@temp
\pgfkeyslet{#2/.@body}\forest@temp
}{}%
\pgfkeysifdefined{#1/.@@body}{%
\pgfkeysgetvalue{#1/.@@body}\forest@temp
\pgfkeyslet{#2/.@@body}\forest@temp
}{}%
\pgfkeysifdefined{#1/.@def}{%
\pgfkeysgetvalue{#1/.@def}\forest@temp
\pgfkeyslet{#2/.@def}\forest@temp
}{}%
}
\forestset{
copy command key/.code 2 args={\forest@copycommandkey{#1}{#2}},
autoforward/.code 2 args={\forest@autoforward{#1}{#2={#1={##1}}}{true}},
autoforward'/.code 2 args={\forest@autoforward{#1}{#2-=#1,#2={#1={##1}}}{true}},
Autoforward/.code 2 args={\forest@autoforward{#1}{#2}{true}},
autoforward register/.code 2 args={\forest@autoforward{#1}{#2={#1={##1}}}{false}},
autoforward register'/.code 2 args={\forest@autoforward{#1}{#2-=#1,#2={#1={##1}}}{false}},
Autoforward register/.code 2 args={\forest@autoforward{#1}{#2}{false}},
copy command key@if it exists/.code 2 args={%
\pgfkeysifdefined{#1/.@cmd}{%
\forest@copycommandkey{#1}{#2}%
}{}%
},
unautoforward/.style={
typeout={unautoforwarding #1},
copy command key@if it exists={/forest/autoforwarded #1}{/forest/#1},
copy command key@if it exists={/forest/autoforwarded #1+}{/forest/#1+},
copy command key@if it exists={/forest/autoforwarded #1-}{/forest/#1-},
copy command key@if it exists={/forest/autoforwarded #1*}{/forest/#1*},
copy command key@if it exists={/forest/autoforwarded #1:}{/forest/#1:},
copy command key@if it exists={/forest/autoforwarded #1'}{/forest/#1'},
copy command key@if it exists={/forest/autoforwarded #1+'}{/forest/#1+'},
copy command key@if it exists={/forest/autoforwarded #1-'}{/forest/#1-'},
copy command key@if it exists={/forest/autoforwarded #1*'}{/forest/#1*'},
copy command key@if it exists={/forest/autoforwarded #1:'}{/forest/#1:'},
copy command key@if it exists={/forest/autoforwarded +#1}{/forest/+#1},
},
/handlers/.undef/.code={\csundef{pgfk@\pgfkeyscurrentpath}},
undef option/.style={
/forest/#1/.undef,
/forest/#1/.@cmd/.undef,
/forest/#1+/.@cmd/.undef,
/forest/#1-/.@cmd/.undef,
/forest/#1*/.@cmd/.undef,
/forest/#1:/.@cmd/.undef,
/forest/#1'/.@cmd/.undef,
/forest/#1+'/.@cmd/.undef,
/forest/#1-'/.@cmd/.undef,
/forest/#1*'/.@cmd/.undef,
/forest/#1:'/.@cmd/.undef,
/forest/+#1/.@cmd/.undef,
/forest/TeX={\patchcmd{\forest@node@init}{\forestoinit{#1}}{}{}{}},
},
undef register/.style={undef option={#1}},
}
\def\forest@autoforward#1#2#3{%
% #1 = option name
% #2 = code of a style taking one arg (new option value),
% which expands to whatever should be done with the new value
% autoforward(') adds to the keylist (arg#2)
% #3 = true=option, false=register
\forest@autoforward@createforwarder{}{#1}{}{#2}{#3}%
\forest@autoforward@createforwarder{}{#1}{+}{#2}{#3}%
\forest@autoforward@createforwarder{}{#1}{-}{#2}{#3}%
\forest@autoforward@createforwarder{}{#1}{*}{#2}{#3}%
\forest@autoforward@createforwarder{}{#1}{:}{#2}{#3}%
\forest@autoforward@createforwarder{}{#1}{'}{#2}{#3}%
\forest@autoforward@createforwarder{}{#1}{+'}{#2}{#3}%
\forest@autoforward@createforwarder{}{#1}{-'}{#2}{#3}%
\forest@autoforward@createforwarder{}{#1}{*'}{#2}{#3}%
\forest@autoforward@createforwarder{}{#1}{:'}{#2}{#3}%
\forest@autoforward@createforwarder{+}{#1}{}{#2}{#3}%
}
\def\forest@autoforward@createforwarder#1#2#3#4#5{%
% #1=prefix, #2=option name, #3=suffix, #4=macro code (#2 above), #5=option or register
\pgfkeysifdefined{/forest/#1#2#3/.@cmd}{%
\forest@copycommandkey{/forest/#1#2#3}{/forest/autoforwarded #1#2#3}%
\pgfkeyssetvalue{/forest/autoforwarded #1#2#3/option@name}{#2}%
\pgfkeysdef{/forest/#1#2#3}{%
\pgfkeysalso{autoforwarded #1#2#3={##1}}%
\def\forest@temp@macro####1{#4}%
\csname forest@temp#5\endcsname
\edef\forest@temp@value{\ifforest@temp\expandafter\forestOv\expandafter{\expandafter\forest@setter@node\expandafter}\else\expandafter\forestrv\fi{#2}}%
%\expandafter\expandafter\expandafter\pgfkeysalso\expandafter\expandafter\expandafter{\expandafter\forest@temp@macro\expandafter{\forest@temp@value}}% ??? how many expansions are really needed?
\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\pgfkeysalso\expandafter\expandafter\expandafter{\expandafter\forest@temp@macro\expandafter{\forest@temp@value}}%
}%
}{}%
}
\def\forest@node@removekeysfromkeylist#1#2{% #1 = keys to remove, #2 = option name
\edef\forest@marshal{%
\noexpand\forest@removekeysfromkeylist{\unexpanded{#1}}{\forestov{#2}}\noexpand\forest@temp@toks}\forest@marshal
\forestoeset{#2}{\the\forest@temp@toks}%
}
\def\forest@removekeysfromkeylist#1#2#3{%
% #1 = keys to remove (a keylist: an empty value means remove a key with any value)
% #2 = keylist
% #3 = toks cs for result
\forest@temp@toks{}%
\def\forestnovalue{\forestnovalue}%
\pgfqkeys{/forest/remove@key@installer}{#1}%
\let\forestnovalue\pgfkeysnovaluetext
\pgfqkeys{/forest/remove@key}{#2}%
\pgfqkeys{/forest/remove@key@uninstaller}{#1}%
#3\forest@temp@toks
}
\def\forest@remove@key@novalue{\forest@remove@key@novalue}%
\forestset{
remove@key@installer/.unknown/.code={% #1 = (outer) value
\def\forest@temp{#1}%
\ifx\forest@temp\pgfkeysnovalue@text
\pgfkeysdef{/forest/remove@key/\pgfkeyscurrentname}{}%
\else
\ifx\forest@temp\forestnovalue
\expandafter\forest@remove@key@installer@defwithvalue\expandafter{\pgfkeyscurrentname}{\pgfkeysnovalue}%
\else
\expandafter\forest@remove@key@installer@defwithvalue\expandafter{\pgfkeyscurrentname}{#1}%
\fi
\fi
},
remove@key/.unknown/.code={% #1 = (inner) value
\expandafter\apptotoks\expandafter\forest@temp@toks\expandafter{\pgfkeyscurrentname={#1},}%
},
remove@key@uninstaller/.unknown/.code={%
\pgfkeyslet{/forest/remove@key/\pgfkeyscurrentname/.@cmd}\@undefined},
}
\def\forest@remove@key@installer@defwithvalue#1#2{% #1=key name, #2 = outer value
\pgfkeysdef{/forest/remove@key/#1}{% ##1 = inner value
\def\forest@temp@outer{#2}%
\def\forest@temp@inner{##1}%
\ifx\forest@temp@outer\forest@temp@inner
\else
\apptotoks\forest@temp@toks{#1={##1},}%
\fi
}%
}
\forestset{
show register/.code={%
\forestrget{#1}\foresttemp
\typeout{Forest register "#1"=\expandafter\detokenize\expandafter{\foresttemp}}%
},
}
\def\forest@newarray#1{%
\forest@tempfalse % non-global
{%
\escapechar=-1
\expandafter\escapechar\expandafter\count@\expandafter
}%
\expandafter\forest@newarray@\expandafter{\string#1}%
}
\def\forest@newglobalarray#1{%
\forest@temptrue % global
{%
\escapechar=-1
\expandafter\escapechar\expandafter\count@\expandafter
}%
\expandafter\forest@newarray@\expandafter{\string#1}%
}
\def\forest@array@empty@error#1{%
\PackageError{forest}{Cannot pop from empty array "#1".}{}}%
\def\forest@array@oub@error#1#2{%
\PackageError{forest}{#2 is out of bounds of array "#1"
(\the\csuse{#1M}--\the\csuse{#1N}).}{}}%
\def\forest@newarray@#1{%
% array bounds: M <= i < N
\expandafter\newcount\csname#1M\endcsname
\expandafter\newcount\csname#1N\endcsname
\csedef{#1clear}{%
\ifforest@temp\global\fi\expandonce{\csname#1M\endcsname}0
\ifforest@temp\global\fi\expandonce{\csname#1N\endcsname}0
}%
\csedef{#1ifempty}{%
\noexpand\ifnum\expandonce{\csname#1M\endcsname}<\expandonce{\csname#1N\endcsname}\relax
\unexpanded{\expandafter\@secondoftwo
\else
\expandafter\@firstoftwo
\fi}%
}%
\csedef{#1length}{% a numexpr
\noexpand\numexpr\expandonce{\csname#1N\endcsname}-\expandonce{\csname#1M\endcsname}\relax
}%
\csedef{#1checkrange}##1##2{% args can be \numexprs
\noexpand\forest@tempfalse
\noexpand\ifnum\numexpr##1<\expandonce{\csname#1M\endcsname}\relax
\noexpand\forest@temptrue
\noexpand\fi
\noexpand\ifnum\numexpr##2>\expandonce{\csname#1N\endcsname}\relax
\noexpand\forest@temptrue
\noexpand\fi
\noexpand\ifforest@temp
\noexpand\forest@array@oub@error{#1}{Range "\noexpand\number\noexpand\numexpr##1\relax--\noexpand\number\noexpand\numexpr##2\relax"}%
\noexpand\fi
}%
\csedef{#1checkindex}##1{% arg can be a \numexpr
\noexpand\forest@tempfalse
\noexpand\ifnum\numexpr##1<\expandonce{\csname#1M\endcsname}\relax
\noexpand\forest@temptrue
\noexpand\fi
\noexpand\ifnum\numexpr##1<\expandonce{\csname#1N\endcsname}\relax
\noexpand\else
\noexpand\forest@temptrue
\noexpand\fi
\noexpand\ifforest@temp
\noexpand\forest@array@oub@error{#1}{Index "\noexpand\number\noexpand\numexpr##1\relax"}%
\noexpand\fi
}%
\csedef{#1get}##1##2{% ##1 = index, ##2 = receiving cs
\expandonce{\csname#1checkindex\endcsname}{##1}%
\noexpand\letcs##2{#1##1}%
}%
\csedef{#1get@}##1##2{% ##1 = index, ##2 = receiving cs (don't check bounds)
\noexpand\letcs##2{#1##1}%
}%
\csedef{#1toppop}##1{% ##1 = receiving cs
\expandonce{\csname#1ifempty\endcsname}{%
\noexpand\forest@array@empty@error{#1}%
}{%
\ifforest@temp\global\fi\advance\expandonce{\csname#1N\endcsname}-1
\noexpand\letcs\noexpand##1{#1\noexpand\the\expandonce{\csname#1N\endcsname}}%
}%
}%
\InlineNoDef{\csdef{#1bottompop}##1{% ##1 = receiving cs
\Expand{\csname#1ifempty\endcsname}{%
\forest@array@empty@error{#1}%
}{%
\letcs##1{#1\the\Expand{\csname#1M\endcsname}}%
\ExpandIfT{forest@temp}\global\advance\Expand{\csname#1M\endcsname 1}%
}%
}}%
% \csdef{#1bottompop}##1{}% we need this as \Inline chokes on \let\macro=\relax
% \expandafter\Inline\expandafter\def\csname#1bottompop\endcsname##1{% ##1 = receiving cs
% \Expand{\csname#1ifempty\endcsname}{%
% \forest@array@empty@error{#1}%
% }{%
% \letcs##1{#1\the\Expand{\csname#1M\endcsname}}%
% \ExpandIfT{forest@temp}\global\advance\Expand{\csname#1M\endcsname 1}%
% }%
% }%
% \csedef{#1bottompop}##1{% ##1 = receiving cs
% \expandonce{\csname#1ifempty\endcsname}{%
% \noexpand\forest@array@empty@error{#1}%
% }{%
% \noexpand\letcs\noexpand##1{#1\noexpand\the\expandonce{\csname#1M\endcsname}}%
% \ifforest@temp\global\fi\advance\expandonce{\csname#1M\endcsname}1
% }%
% }%
\csedef{#1setappend}##1{% ##1 = definition
\ifforest@temp\noexpand\csxdef\else\noexpand\csedef\fi
{#1\noexpand\the\expandonce{\csname#1N\endcsname}}%
{\noexpand\unexpanded{##1}}%
\ifforest@temp\global\fi\advance\expandonce{\csname#1N\endcsname}1
}%
\csedef{#1setappend@}##1##2{% ##1 = continue by, ##2 = definition
\ifforest@temp\noexpand\csxdef\else\noexpand\csedef\fi
{#1\noexpand\the\expandonce{\csname#1N\endcsname}}%
{\noexpand\unexpanded{##2}}%
\ifforest@temp\global\fi\advance\expandonce{\csname#1N\endcsname}1
##1%
}%
\csedef{#1setprepend}##1{% ##1 = definition
\ifforest@temp\global\fi\advance\expandonce{\csname#1M\endcsname}-1
\ifforest@temp\noexpand\csxdef\else\noexpand\csedef\fi
{#1\noexpand\the\expandonce{\csname#1M\endcsname}}%
{\noexpand\unexpanded{##1}}%
}%
\csedef{#1esetappend}##1{% ##1 = definition
\ifforest@temp\noexpand\csxdef\else\noexpand\csedef\fi{#1\noexpand\the\expandonce{\csname#1N\endcsname}}{##1}%
\ifforest@temp\global\fi\advance\expandonce{\csname#1N\endcsname}1
}%
\csedef{#1esetprepend}##1{% ##1 = definition
\ifforest@temp\global\fi\advance\expandonce{\csname#1M\endcsname}-1
\ifforest@temp\noexpand\csxdef\else\noexpand\csedef\fi{#1\noexpand\the\expandonce{\csname#1M\endcsname}}{##1}%
}%
\csedef{#1letappend}##1{% ##1 = cs
\ifforest@temp\noexpand\expandafter\noexpand\global\fi\noexpand\expandafter\noexpand\let
\noexpand\csname#1\noexpand\the\expandonce{\csname#1N\endcsname}\noexpand\endcsname
##1%
\ifforest@temp\global\fi\advance\expandonce{\csname#1N\endcsname}1
}%
\csedef{#1letprepend}##1{% ##1 = cs
\ifforest@temp\global\fi\advance\expandonce{\csname#1M\endcsname}-1
\ifforest@temp\noexpand\expandafter\noexpand\global\fi\noexpand\expandafter\noexpand\let
\noexpand\csname#1\noexpand\the\expandonce{\csname#1M\endcsname}\noexpand\endcsname
##1%
}%
\csedef{#1values}{%
\noexpand\expandafter\noexpand\expandafter\noexpand\expandafter\expandonce{\csname#1valuesfromrange\endcsname}%
\noexpand\expandafter\noexpand\expandafter\noexpand\expandafter{%
\noexpand\expandafter\noexpand\the
\noexpand\expandafter\expandonce{\csname#1M\endcsname}%
\noexpand\expandafter}%
\noexpand\expandafter{\noexpand\the\expandonce{\csname#1N\endcsname}}%
}%
\csedef{#1valuesfromrange}##1##2{% ##1/##2 = lower/upper bounds (we receive them expanded)
\noexpand\ifnum##1<##2
{\noexpand\expandafter\noexpand\expandonce\noexpand\expandafter{\noexpand\csname#1##1\noexpand\endcsname}}% here we add braces (for the general case, we might want an arbitrary prefix&suffix)
\noexpand\expandafter\noexpand\@escapeif\noexpand\expandafter{\noexpand\expandafter\expandonce{\csname#1valuesfromrange\endcsname}%
\noexpand\expandafter{\noexpand\number\noexpand\numexpr##1+1}{##2}}%
\noexpand\fi
}%
\csdef{#1topextend}{\def\forest@array@currentarray{#1}\forest@array@topextend}%
}
\def\forest@array@topextend{\futurelet\forest@ate@next@token\forest@ate@checkforspace}
\def\forest@ate@checkforspace{%
\expandafter\ifx\space\forest@ate@next@token
\expandafter\forest@ate@havespace
\else
\expandafter\forest@ate@checkforgroup
\fi
}
\def\forest@ate@havespace{\expandafter\forest@array@topextend\romannumeral-`0}%
\def\forest@ate@checkforgroup{%
\ifx\forest@ate@next@token\bgroup
\expandafter\forest@ate@appendgroup
\else
\expandafter\forest@ate@checkforeov
\fi
}
\def\forest@ate@appendgroup{%
\expandonce{\csname\forest@array@currentarray setappend@\endcsname}\forest@array@topextend
}
\def\forest@ate@checkforeov{%
\ifx\forest@ate@next@token\forest@eov
\expandafter\forest@ate@finish
\else
\expandafter\forest@ate@appendtoken
\fi
}
\def\forest@ate@appendtoken#1{%
\expandonce{\csname\forest@array@currentarray setappend\endcsname}{#1}%
\forest@array@topextend
}
\def\forest@ate@finish\forest@eov{\forest@topextend@next}
\let\forest@topextend@next\relax
\forest@newarray\forest@temparray@
\forest@newglobalarray\forest@global@temparray@
\def\forest@eon{ }
\newif\ifforest@isnum@minus
\newif\ifforest@isnum
\def\forest@isnum#1{%
\forest@isnum@minusfalse
\let\forest@isnum@next\forest@isnum@finish
\edef\forest@isnum@temp{#1}%
\expandafter\forest@isnum@a\forest@isnum@temp\forest@eon\forest@eon\forest@END
\ifforest@isnum
\expandafter\@firstoftwo
\else
\expandafter\@secondoftwo
\fi
}
\def\forest@isnum@a{\futurelet\forest@isnum@token\forest@isnum@b}
\def\forest@isnum@minustoggle{%
\ifforest@isnum@minus\forest@isnum@minusfalse\else\forest@isnum@minustrue\fi
}
\def\forest@isnum@b{%
\let\forest@next\forest@isnum@p
\ifx-\forest@isnum@token
\forest@isnum@minustoggle
\let\forest@next\forest@isnum@c
\else
\ifx+\forest@isnum@token
\let\forest@next\forest@isnum@c
\else
\expandafter\ifx\space\forest@isnum@token
\let\forest@next\forest@isnum@s
\fi
\fi
\fi
\forest@next
}
\def\forest@isnum@c#1{\forest@isnum@a}%
\def\forest@isnum@s#1{\forest@isnum@a#1}%
\newcount\forest@isnum@count
\def\forest@isnum@p{%
\ifx0\forest@isnum@token
\let\forest@next\forest@isnum@next
\else
\let\forest@next\forest@isnum@nz@
\fi
\forest@isnumtrue
\afterassignment\forest@isnum@q\forest@isnum@count\ifforest@isnum@minus-\fi0%
}
\def\forest@isnum@q{%
\futurelet\forest@isnum@token\forest@next
}
\def\forest@isnum@nz@{%
\ifnum\forest@isnum@count=0
\forest@isnumfalse
\fi
\forest@isnum@next
}
\def\forest@isnum@finish#1\forest@END{%
\ifx\forest@isnum@token\forest@eon
\else
\forest@isnumfalse
\fi
}
\newcount\forest@isdim@nonintpart
\newif\ifforest@isdim
\def\forest@isdim#1{%
\forest@isdimfalse
\forest@isnum@minusfalse
\def\forest@isdim@leadingzeros{}%
\forest@isdim@nonintpart=0
\def\forest@isdim@unit{pt}%
\let\forest@isnum@next\forest@isdim@checkfordot
\edef\forest@isnum@temp{#1}%
\expandafter\forest@isnum@a\forest@isnum@temp\forest@eon\forest@eon\forest@eon\forest@eon\forest@END
\ifforest@isdim
\expandafter\@firstoftwo
\else
\expandafter\@secondoftwo
\fi
}
\def\forest@isdim@checkfordot{%
\ifx.\forest@isnum@token
\expandafter\forest@isdim@dot
\else
\ifx,\forest@isnum@token
\expandafter\expandafter\expandafter\forest@isdim@dot
\else
\expandafter\expandafter\expandafter\forest@isdim@nodot
\fi
\fi
}
\def\forest@isdim@nodot{%
\ifforest@isnum
\expandafter\forest@isdim@checkforunit
\else
\expandafter\forest@isdim@finish@nodim
\fi
}
\def\forest@isdim@dot#1{% #1=. or ,
\futurelet\forest@isnum@token\forest@isdim@collectzero
}
\def\forest@isdim@collectzero{%
\ifx0\forest@isnum@token
\expandafter\forest@isdim@collectzero@
\else
\expandafter\forest@isdim@getnonintpart
\fi
}
\def\forest@isdim@collectzero@#1{% #1 = 0
\appto\forest@isdim@leadingzeros{0}%
\futurelet\forest@isnum@token\forest@isdim@collectzero
}
\def\forest@isdim@getnonintpart{%
\afterassignment\forest@isdim@checkforunit\forest@isdim@nonintpart0%
}
\def\forest@def@unit#1{\csdef{forest@unit@#1}{#1}}
\forest@def@unit{em}
\forest@def@unit{ex}
\forest@def@unit{pt}
\forest@def@unit{pc}
\forest@def@unit{in}
\forest@def@unit{bp}
\forest@def@unit{cm}
\forest@def@unit{mm}
\forest@def@unit{dd}
\forest@def@unit{cc}
\forest@def@unit{sp}
\def\forest@isdim@checkforunit#1#2{%
\lowercase{\edef\forest@isnum@temp{\detokenize{#1#2}}}%
\ifcsname forest@unit@\forest@isnum@temp\endcsname
\let\forest@isdim@next\forest@isdim@finish@dim
\edef\forest@isdim@unit{\csname forest@unit@\forest@isnum@temp\endcsname}%
\else
\ifx#1\forest@eon
\let\forest@isdim@next\forest@isdim@finish@dim
\else
\let\forest@isdim@next\forest@isdim@finish@nodim
\fi
\fi
\forest@isdim@next
}
\def\forest@isdim@finish@dim{%
\futurelet\forest@isnum@token\forest@isdim@finish@dim@a
}
\def\forest@isdim@finish@dim@a{%
\expandafter\ifx\space\forest@isnum@token
\expandafter\forest@isdim@finish@dim@b
\else
\expandafter\forest@isdim@finish@dim@c
\fi
}
\expandafter\def\expandafter\forest@isdim@finish@dim@b\space{% eat one space
\futurelet\forest@isnum@token\forest@isdim@finish@dim@c
}
\def\forest@isdim@finish@dim@c#1\forest@END{%
\ifx\forest@isnum@token\forest@eon
\forest@isdimtrue
\forest@isdim@dimen\the\forest@isnum@count.\forest@isdim@leadingzeros\the\forest@isdim@nonintpart\forest@isdim@unit\relax
\else
\forest@isdimfalse
\fi
}
\def\forest@isdim@finish@nodim#1\forest@END{%
\forest@isdimfalse
}
\newdimen\forest@isdim@dimen
% \long\def\@firstofthree#1#2#3{#3} % defined by LaTeX
\long\def\@firstofthree#1#2#3{#1}
\long\def\@secondofthree#1#2#3{#2}
\def\forest@isnumdim#1{%
\forest@isdim{#1}{%
\forest@isnumdim@
}{%
\@thirdofthree
}%
}
\def\forest@isnumdim@{%
\ifforest@isnum
\expandafter\@firstofthree
\else
\expandafter\@secondofthree
\fi
}
\def\forestmathtype@generic{_} % generic (token list)
\def\forestmathtype@count{n} % integer
\def\forestmathtype@dimen{d} % a dimension: <decimal> pt
\def\forestmathtype@unitless{P} % <decimal> (a unitless dimension) (P because pgfmath returns such numbers)
\def\forestmathtype@textasc{t} % text (ascending)
\def\forestmathtype@textdesc{T} % text (descending)
\def\forestmathtype@none{} % internal (for requests - means whatever)
\def\forestmathresult{}
\let\forestmathresulttype\forestmathtype@generic
\def\forest@tryprocess#1{%
\def\forest@tryprocess@returnarray{#1}%
\expandafter\forest@tryprocess@a\romannumeral-`0}
\def\forest@tryprocess@a{\futurelet\forest@temp@token\forest@tryprocess@b}
\def\forest@tryprocess@b{%
\ifx>\forest@temp@token
\expandafter\forest@tryprocess@yes
\else
\expandafter\forest@tryprocess@no
\fi
}
\def\forest@spacegen{ \forest@spacegen}
\def\forest@tryprocess@yes#1#2\forest@spacegen{%
\expandafter\forest@process\expandafter{\forest@tryprocess@returnarray}#2\forest@eov
\@firstoftwo
}
\def\forest@tryprocess@no#1\forest@spacegen{\@secondoftwo}
\def\forestmathsetcount#1#2{%
\forest@tryprocess{false}#2\forest@spacegen{%
#1=\forest@process@result\relax
}{%
\forestmathsetcount@#1{#2}%
}%
}
\def\forestmathsetcount@#1#2{%
\forest@isnum{#2}{%
#1=\forest@isnum@count
}{%
\pgfmathsetcount#1{#2}%
}%
}
\def\forestmathsetlength#1#2{%
\forest@tryprocess{false}#2\forest@spacegen{%
#1=\forest@process@result\relax
}{%
\forestmathsetlength@#1{#2}%
}%
}
\def\forestmathsetlength@#1#2{%
\forest@isdim{#2}{%
#1=\forest@isdim@dimen
}{%
\pgfmathsetlength#1{#2}%
}%
}
\def\forestmathtruncatemacro#1#2{%
\forest@tryprocess{false}#2\forest@spacegen{%
\forest@temp@count=\forest@process@result\relax
\edef#1{\the\forest@temp@count}%
}{%
\forestmathtruncatemacro@#1{#2}%
}%
}
\def\forestmathtruncatemacro@#1#2{%
\forest@isnum{#2}{%
\edef#1{\the\forest@isnum@count}%
}{%
\pgfmathtruncatemacro#1{#2}%
}%
}
\def\forestmathsetlengthmacro#1#2{%
\forest@tryprocess{false}#2\forest@spacegen{%
\forest@temp@dimen=\forest@process@result\relax
\edef#1{\the\forest@temp@dimen}%
}{%