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authorKarl Berry <karl@freefriends.org>2014-03-09 00:46:37 +0000
committerKarl Berry <karl@freefriends.org>2014-03-09 00:46:37 +0000
commit88653f6f67f3eb283d2713f8e5ed37767cda682b (patch)
treeb9dfb6910519b56c4154a1654d93ded46d840bad /Master/texmf-dist/tex/generic/tikz-cd
parent43a57ed22fe612f300d51efd5fed0ff2d8a7df48 (diff)
oops, no extra tex/ level
git-svn-id: svn://tug.org/texlive/trunk@33127 c570f23f-e606-0410-a88d-b1316a301751
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+% tikzlibrarycd.code.tex [2014/03/08 v0.9b Commutative diagrams with tikz]
+%
+% Copyright 2011, 2012, 2014 by FlorĂȘncio Neves <florencioneves@gmail.com>
+%
+% This program is free software: you can redistribute it and/or modify
+% it under the terms of the GNU General Public License as published by
+% the Free Software Foundation, either version 3 of the License, or
+% (at your option) any later version.
+%
+% This program is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+\usetikzlibrary{matrix,quotes,arrows.meta}
+
+\newif\iftikzcd@mathmode
+
+\def\tikzcdset{\pgfqkeys{/tikz/commutative diagrams}}
+
+\def\tikzcd@x@addto@macro#1#2{%
+ \pgfutil@toks@\expandafter{#1}%
+ \xdef#1{\the\pgfutil@toks@#2}}
+
+\tikzcdset{
+ arrows/.code={\tikzcdset{every arrow/.append style={#1}}},
+ labels/.code={\tikzcdset{every label/.append style={#1}}},
+ cells/.code={\tikzcdset{every cell/.append style={#1}}},
+ diagrams/.code={\tikzcdset{every diagram/.append style={#1}}},
+ to/.code={%
+ \pgfutil@ifundefined{pgf@sh@ns@\tikzcdmatrixname-#1}
+ {\def\tikzcd@ar@target{#1}}
+ {\def\tikzcd@ar@target{\tikzcdmatrixname-#1}}},
+ from/.code={%
+ \pgfutil@ifundefined{pgf@sh@ns@\tikzcdmatrixname-#1}
+ {\def\tikzcd@ar@start{#1}}
+ {\def\tikzcd@ar@start{\tikzcdmatrixname-#1}}},
+ description/.style={
+ /tikz/anchor=center,
+ /tikz/fill=\pgfkeysvalueof{/tikz/commutative diagrams/background color}},
+ phantom/.style={
+ /tikz/draw=none,
+ /tikz/commutative diagrams/labels={
+ /tikz/font=,
+ /tikz/anchor=center}},
+ crossing over/.style={
+ /tikz/preaction={
+ /tikz/draw=\pgfkeysvalueof{/tikz/commutative diagrams/background color},
+ /tikz/arrows=-,
+ /tikz/line width=\pgfkeysvalueof{/tikz/commutative diagrams/crossing over clearance}}},
+ row sep/.code={\tikzcd@sep{row}{#1}},
+ column sep/.code={\tikzcd@sep{column}{#1}},
+ math mode/.is if=tikzcd@mathmode,
+ arrow style/.is choice}
+
+\def\tikzcd@sep#1#2{
+ \pgfkeysifdefined{/tikz/commutative diagrams/#1 sep/#2}%
+ {\pgfkeysgetvalue{/tikz/commutative diagrams/#1 sep/#2}\tikzcd@temp%
+ \pgfkeysalso{/tikz/#1 sep/.expand once=\tikzcd@temp}}%
+ {\pgfkeysalso{/tikz/#1 sep={#2}}}}
+
+% The unknown key handler and direction argument parser
+\tikzcdset{
+ .unknown/.code={%
+ \ifpgfkeysaddeddefaultpath%
+ \c@pgf@counta=0%
+ \c@pgf@countb=0%
+ \let\tikzcd@temp=\tikzcd@parse%
+ \expandafter\tikzcd@temp\pgfkeyscurrentname\relax%
+ \ifx\tikzcd@temp\pgfutil@empty% true if it was a direction parameter
+ \advance\c@pgf@counta by\tikzcd@currentrow%
+ \advance\c@pgf@countb by\tikzcd@currentcolumn%
+ \edef\tikzcd@ar@target{\tikzcdmatrixname-\the\c@pgf@counta-\the\c@pgf@countb}%
+ \else%
+ \pgfqkeys{/tikz}{\pgfkeyscurrentname={#1}}%
+ \fi%
+ \else%
+ \def\pgfutilnext{\pgfkeysvalueof{/handlers/.unknown/.@cmd}#1\pgfeov}\pgfutilnext%
+ \fi}}
+
+\def\tikzcd@parse#1{% parser for arrow direction argument
+ \ifx#1r\advance\c@pgf@countb by1\else%
+ \ifx#1d\advance\c@pgf@counta by1\else%
+ \ifx#1l\advance\c@pgf@countb by-1\else%
+ \ifx#1u\advance\c@pgf@counta by-1\else%
+ \ifx#1\relax\let\tikzcd@temp\pgfutil@empty%
+ \else\let\tikzcd@temp\pgfutil@gobble@until@relax\fi\fi\fi\fi\fi%
+ \tikzcd@temp}
+
+% The `tikzcd' environment
+\def\tikzcd{%
+ \iffalse{\fi\ifnum0=`}\fi% standard trick to allow nesting of tabular-like environments (cf. the tabularx manual)
+ \pgfutil@ifnextchar&% if we get an & here, it will be returned with the wrong catcode to the input stream
+ {\expandafter\tikzcd@@\expandafter\pgfmatrixnextcell\pgfutil@gobble}%
+ {\tikzcd@@}}
+
+\def\tikzcd@@{\pgfutil@ifnextchar[{\tikzcd@}{\tikzcd@[]}}
+
+\def\tikzcd@[#1]{%
+ \tikzpicture[/tikz/commutative diagrams/.cd,every diagram,#1]%
+ \ifx\arrow\tikzcd@arrow%
+ \pgfutil@packageerror{tikz-cd}{Diagrams cannot be nested}{}
+ \fi%
+ \let\arrow\tikzcd@arrow%
+ \let\ar\tikzcd@arrow%
+ \def\rar{\tikzcd@xar{r}}%
+ \def\lar{\tikzcd@xar{l}}%
+ \def\dar{\tikzcd@xar{d}}%
+ \def\uar{\tikzcd@xar{u}}%
+ \def\urar{\tikzcd@xar{ur}}%
+ \def\ular{\tikzcd@xar{ul}}%
+ \def\drar{\tikzcd@xar{dr}}%
+ \def\dlar{\tikzcd@xar{dl}}%
+ \global\let\tikzcd@savedpaths\pgfutil@empty%
+ \matrix[/tikz/matrix of \iftikzcd@mathmode math \fi nodes,
+ /tikz/every cell/.append code={\tikzcdset{every cell}},
+ /tikz/commutative diagrams/.cd,every matrix]%
+ \bgroup}
+
+\def\endtikzcd{%
+ \pgfmatrixendrow\egroup%
+ \pgfextra{\global\let\tikzcdmatrixname\tikzlastnode};%
+ \tikzcdset{\the\pgfmatrixcurrentrow-row diagram/.try}%
+ \begingroup%
+ \tikzcd@enablequotes%
+ \tikzcd@patcherrmsg%
+ \tikzcd@savedpaths%
+ \endgroup%
+ \endtikzpicture%
+ \ifnum0=`{}\fi}
+
+% The arrow commands
+\def\tikzcd@arrow{%
+ \relax%
+ \tikzcd@x@addto@macro\tikzcd@savedpaths{%
+ \noexpand\def\noexpand\tikzcd@currentcolumn{\the\pgfmatrixcurrentcolumn}%
+ \noexpand\def\noexpand\tikzcd@currentrow{\the\pgfmatrixcurrentrow}%
+ \noexpand\def\noexpand\tikzcd@lineno{\the\inputlineno}}%
+ \pgfutil@ifnextchar[{\tikzcd@@arrow}{\tikzcd@ar@old[]}}
+
+\def\tikzcd@@arrow[#1]{\pgfutil@ifnextchar\bgroup{\tikzcd@ar@old[#1]}{\tikzcd@ar@new[#1]}}
+
+\def\tikzcd@ar@new[#1]{% new syntax
+ \pgfutil@g@addto@macro\tikzcd@savedpaths{%
+ \path[/tikz/commutative diagrams/.cd,every arrow,#1]%
+ (\tikzcd@ar@start\tikzcd@startanchor) to (\tikzcd@ar@target\tikzcd@endanchor); }}
+
+\def\tikzcd@ar@old[#1]#2{% old syntax
+ \pgfutil@g@addto@macro\tikzcd@savedpaths{%
+ \path[/tikz/commutative diagrams/.cd,every arrow,{#2},#1] (\tikzcd@ar@start\tikzcd@startanchor) to }%
+ \pgfutil@ifnextchar[{\tikzcd@ar@getlabel}{\pgfutil@ifnextchar\bgroup{\tikzcd@ar@getlabel[]}{\tikzcd@ar@final}}}
+
+\def\tikzcd@ar@getlabel[#1]#2{%
+ \pgfutil@g@addto@macro\tikzcd@savedpaths{%
+ node[/tikz/commutative diagrams/.cd,every label,#1]{\tikzcd@mathmaybe{#2}}}%
+ \pgfutil@ifnextchar[{\tikzcd@ar@getlabel}{\pgfutil@ifnextchar\bgroup{\tikzcd@ar@getlabel[]}{\tikzcd@ar@final}}}
+
+\def\tikzcd@ar@final{%
+ \pgfutil@g@addto@macro\tikzcd@savedpaths{(\tikzcd@ar@target\tikzcd@endanchor); }}
+
+\def\tikzcd@xar#1{\relax\pgfutil@ifnextchar[{\tikzcd@@xar{#1}}{\tikzcd@arrow[]{#1}}}
+
+\def\tikzcd@@xar#1[#2]{\tikzcd@arrow[#2]{#1}}
+
+\def\tikzcd@mathmaybe#1{\iftikzcd@mathmode$\relax #1$\else#1\fi}
+
+\def\tikzcd@ar@target{\tikzcdmatrixname-\tikzcd@currentrow-\tikzcd@currentcolumn}
+\def\tikzcd@ar@start{\tikzcdmatrixname-\tikzcd@currentrow-\tikzcd@currentcolumn}
+
+% `quotes' library support
+\def\tikzcd@passquotes#1{\tikzset{every to/.append style={#1}}}
+
+\def\tikzcd@enablequotes{%
+ \pgfkeys{
+ /handlers/first char syntax/the character "/.initial=\tikzcd@passquotes,
+ /tikz/edge quotes mean={%
+ edge node={node [/tikz/commutative diagrams/.cd,every label,##2]{\tikzcd@mathmaybe{##1}}}}}}
+
+% Improve error messages
+\def\tikzcd@patcherrmsg{%
+ \let\tikzcd@errmessage\errmessage%
+ \def\errmessage##1{\tikzcd@errmessage{##1^^J...^^Jl.\tikzcd@lineno\space%
+ I think the culprit is a tikzcd arrow in cell \tikzcd@currentrow-\tikzcd@currentcolumn}}}
+
+% `start anchor', `end anchor', and `shift' keys
+\def\tikzcd@setanchor#1[#2]#3\relax{%
+ \ifx\relax#2\relax\else%
+ \tikzcdset{@#1transform/.append style={#2},@shiftabletopath}%
+ \fi%
+ \ifx\relax#3\relax%
+ \pgfutil@namelet{tikzcd@#1anchor}{pgfutil@empty}%
+ \else%
+ \pgfutil@namedef{tikzcd@#1anchor}{.#3}%
+ \fi}
+
+\tikzcdset{
+ @shiftabletopath/.style={
+ /tikz/execute at begin to={%
+ \begingroup%
+ \def\tikz@tonodes{coordinate[pos=0,commutative diagrams/@starttransform/.try](tikzcd@nodea) %
+ coordinate[pos=1,commutative diagrams/@endtransform/.try](tikzcd@nodeb)}%
+ \path (\tikztostart) \tikz@to@path;%
+ \endgroup%
+ \def\tikztostart{tikzcd@nodea}%
+ \def\tikztotarget{tikzcd@nodeb}%
+ \tikzset{insert path={(tikzcd@nodea)}}},
+ /tikz/commutative diagrams/@shiftabletopath/.code={}},
+ start anchor/.code={%
+ \pgfutil@ifnextchar[{\tikzcd@setanchor{start}}{\tikzcd@setanchor{start}[]}#1\relax},%]
+ end anchor/.code={%
+ \pgfutil@ifnextchar[{\tikzcd@setanchor{end}}{\tikzcd@setanchor{end}[]}#1\relax},%]
+ start anchor=,
+ end anchor=,
+ shift left/.style={
+ /tikz/commutative diagrams/@shiftabletopath,
+ /tikz/execute at begin to={%
+ \pgfpointnormalised{%
+ \pgfpointdiff{\pgfpointanchor{tikzcd@nodeb}{center}}{\pgfpointanchor{tikzcd@nodea}{center}}}%
+ \pgfgetlastxy{\tikzcd@x}{\tikzcd@y}%
+ \pgfmathparse{#1}%
+ \ifpgfmathunitsdeclared\else
+ \pgfmathparse{\pgfmathresult*\pgfkeysvalueof{/tikz/commutative diagrams/shift left/.@def}}
+ \fi
+ \coordinate (tikzcd@nodea) at ([shift={(\pgfmathresult*\tikzcd@y,-\pgfmathresult*\tikzcd@x)}]tikzcd@nodea);%
+ \coordinate (tikzcd@nodeb) at ([shift={(\pgfmathresult*\tikzcd@y,-\pgfmathresult*\tikzcd@x)}]tikzcd@nodeb);%
+ \tikzset{insert path={(tikzcd@nodea)}}}},
+ shift right/.style={
+ /tikz/commutative diagrams/shift left={-(#1)}},
+ transform nodes/.style={
+ /tikz/commutative diagrams/@shiftabletopath,
+ /tikz/commutative diagrams/@starttransform/.append style={#1},
+ /tikz/commutative diagrams/@endtransform/.append style={#1}},
+ shift/.style={
+ /tikz/shift={#1},% we need this for labels to receive a shift
+ /tikz/commutative diagrams/transform nodes={/tikz/shift={#1}}},
+ xshift/.style={
+ /tikz/xshift={#1},
+ /tikz/commutative diagrams/transform nodes={/tikz/xshift={#1}}},
+ yshift/.style={
+ /tikz/yshift={#1},
+ /tikz/commutative diagrams/transform nodes={/tikz/yshift={#1}}}}
+
+% pgfmath functions to obtain math fontdimens
+\pgfutil@ifluatex
+
+ \directlua{tex.enableprimitives('tikzcd@', {'Umathaxis', 'Umathfractionrule'})}
+
+ \pgfmathdeclarefunction{axis_height}{0}{%
+ \begingroup%
+ $\relax$% update fontdimens
+ \pgfmathreturn\the\tikzcd@Umathaxis\textstyle%
+ \endgroup}
+
+ \pgfmathdeclarefunction{rule_thickness}{0}{%
+ \begingroup%
+ $\relax$%
+ \pgfmathreturn\the\tikzcd@Umathfractionrule\textstyle%
+ \endgroup}
+
+\else% if using (pdf)tex
+
+ \pgfmathdeclarefunction{axis_height}{0}{%
+ \begingroup%
+ $\relax$% update fontdimens
+ \pgfmathreturn\the\fontdimen22\textfont2%
+ \endgroup}
+
+ \pgfmathdeclarefunction{rule_thickness}{0}{%
+ \begingroup%
+ $\relax$%
+ \pgfmathreturn\the\fontdimen8\textfont3%
+ \endgroup}
+
+\fi
+
+% The shape used inside matrices
+\pgfdeclareshape{asymmetrical rectangle} {
+ \inheritsavedanchors[from={rectangle}]
+ \inheritanchor[from={rectangle}]{base}
+ \inheritanchor[from={rectangle}]{north}
+ \inheritanchor[from={rectangle}]{south}
+ \inheritanchor[from={rectangle}]{base west}
+ \inheritanchor[from={rectangle}]{north west}
+ \inheritanchor[from={rectangle}]{south west}
+ \inheritanchor[from={rectangle}]{base east}
+ \inheritanchor[from={rectangle}]{north east}
+ \inheritanchor[from={rectangle}]{south east}
+ \inheritanchor[from={rectangle}]{mid}
+ \inheritanchor[from={rectangle}]{mid west}
+ \inheritanchor[from={rectangle}]{mid east}
+ \inheritbackgroundpath[from={rectangle}]
+ \anchor{center}{\pgf@anchor@rectangle@center\pgfmathsetlength\pgf@y%
+ {\pgfkeysvalueof{/tikz/commutative diagrams/center yshift}}}
+ \anchor{west}{\pgf@anchor@rectangle@west\pgfmathsetlength\pgf@y%
+ {\pgfkeysvalueof{/tikz/commutative diagrams/center yshift}}}
+ \anchor{east}{\pgf@anchor@rectangle@east\pgfmathsetlength\pgf@y%
+ {\pgfkeysvalueof{/tikz/commutative diagrams/center yshift}}}
+ \anchor{real center}{\pgf@anchor@rectangle@center}
+ \anchor{real west}{\pgf@anchor@rectangle@west}
+ \anchor{real east}{\pgf@anchor@rectangle@east}
+ \anchorborder{%
+ \pgfmathsetlength\pgfutil@tempdima%
+ {\pgfkeysvalueof{/tikz/commutative diagrams/center yshift}}%
+ \pgf@xb=\pgf@x% xb/yb is target
+ \pgf@yb=\pgf@y%
+ \southwest%
+ \pgf@xa=\pgf@x% xa/ya is se
+ \pgf@ya=\pgf@y%
+ \northeast%
+ \advance\pgf@x by-\pgf@xa%
+ \advance\pgf@y by-\pgf@ya%
+ \pgf@xc=.5\pgf@x% x/y is half width/height
+ \pgf@yc=.5\pgf@y%
+ \advance\pgf@xa by\pgf@xc% xa/ya becomes center
+ \advance\pgf@ya by\pgf@yc%
+ \ifdim\pgf@yb>0pt%
+ \northeast%
+ \pgf@yc=\pgf@y%
+ \advance\pgf@yc by-\pgfutil@tempdima%
+ \else%
+ \southwest%
+ \pgf@yc=-\pgf@y%
+ \advance\pgf@yc by\pgfutil@tempdima%
+ \fi
+ \edef\pgf@marshal{%
+ \noexpand\pgfpointborderrectangle
+ {\noexpand\pgfqpoint{\the\pgf@xb}{\the\pgf@yb}}
+ {\noexpand\pgfqpoint{\the\pgf@xc}{\the\pgf@yc}}%
+ }%
+ \pgf@process{\pgf@marshal}%
+ \advance\pgf@x by\pgf@xa%
+ \advance\pgf@y by\pgfutil@tempdima%
+ }%
+}%
+
+% ConTeXt-specific stuff
+\pgfutil@IfUndefined{starttikzpicture}{}{%
+ \def\starttikzcd{\tikzcd}%
+ \def\stoptikzcd{\endtikzcd}}
+
+% Computer modern arrow tips
+\pgfkeys{
+ cm to/.tip={Computer Modern Rightarrow[length=+0pt 6.2]},
+ cm bold to/.tip={cm to[scale=0.667]},
+ cm double to/.tip={cm to[sep=+0pt -2.6]cm to},
+ cm bar/.tip={Bar[width=+0pt 8.2 0.89,line cap=round]},
+ cm left hook/.tip={Hooks[width=+0pt 10.8,length=+0pt 3.6,harpoon,line cap=round]},
+ cm implies/.tip={Implies},
+ cm left to/.tip={cm to[left]},
+ cm right to/.tip={cm to[right]},
+ cm right hook/.tip={cm left hook[swap]},
+ cm to reversed/.tip={cm to[reversed]},
+ cm */.tip={Circle[length=+0pt 7.6]},
+ cm o/.tip={cm *[open]},
+ cm |/.tip={cm bar}}%|
+
+% The `Glyph' meta arrow tip
+\pgfqkeys{/pgf/arrow keys}{
+ glyph math command/.code={% if csname #1 is undefined, we want it to remain so
+ \pgfarrowsaddtooptions{\def\tikzcd@glyph{$\begingroup\expandafter\endgroup\csname #1\endcsname$}}},
+ glyph axis/.code={\pgfarrowsaddtooptions{\pgfmathsetlengthmacro\tikzcd@glyph@axis{#1}}},
+ glyph length/.code={\pgfarrowsaddtooptions{\pgfmathsetlengthmacro\tikzcd@glyph@len{#1}}},
+ glyph shorten/.code={\pgfarrowsaddtooptions{\pgfmathsetlengthmacro\tikzcd@glyph@shorten{#1}}}}
+
+\pgfdeclarearrow{
+ name=Glyph,
+ cache=false,
+ bending mode=none,
+ parameters={\tikzcd@glyph@len,\tikzcd@glyph@shorten},
+ setup code={
+ \pgfarrowssettipend{\tikzcd@glyph@len\advance\pgf@x by\tikzcd@glyph@shorten}},
+ defaults={
+ glyph axis=axis_height,
+ glyph length=+0.9ex,
+ glyph shorten=+-0.1ex},
+ drawing code={
+ \pgfpathrectangle{\pgfpoint{+0pt}{+-1ex}}{\pgfpoint{+\tikzcd@glyph@len}{+2ex}}%
+ \pgfusepathqclip%
+ \pgftransformxshift{+\tikzcd@glyph@len}%
+ \pgftransformyshift{+-\tikzcd@glyph@axis}%
+ \pgftext[right,base]{\tikzcd@glyph}}}
+
+% Arrow tip selection styles
+\tikzcdset{
+ double line/.code={\tikzset{%
+ double equal sign distance,
+ double=\pgfkeysvalueof{/tikz/commutative diagrams/background color}}},
+ dashed/.style={/tikz/dash pattern={on 7\pgflinewidth off 4\pgflinewidth}},
+ tikzcd to/.tip={cm to},
+ tikzcd bar/.tip={cm bar},
+ tikzcd left hook/.tip={cm left hook},
+ tikzcd double to/.tip={cm double to},
+ tikzcd implies/.tip={Implies},
+ tikzcd right hook/.tip={tikzcd left hook[swap]},
+ tikzcd left to/.tip={tikzcd to[harpoon]},
+ tikzcd right to/.tip={tikzcd left to[swap]},
+ tikzcd to reversed/.tip={tikzcd to[reversed]},
+ tikzcd cap/.tip={},
+ tikzcd implies cap/.tip={},
+ tikzcd implies bar/.tip={tikzcd bar},
+ no tail/.code={\pgfsetarrowsstart{tikzcd cap}},
+ to head/.code={\pgfsetarrowsend{tikzcd to}},
+ maps to/.code={\pgfsetarrowsstart{tikzcd bar}},
+ hook/.code={\pgfsetarrowsstart{tikzcd right hook}},
+ hook'/.code={\pgfsetarrowsstart{tikzcd left hook}},
+ harpoon/.code={\pgfsetarrowsend{tikzcd left to}},
+ harpoon'/.code={\pgfsetarrowsend{tikzcd right to}},
+ two heads/.code={\pgfsetarrowsend{tikzcd double to}},
+ tail/.code={\pgfsetarrowsstart{tikzcd to reversed}},
+ rightarrow/.code={\pgfsetarrows{tikzcd cap-tikzcd to}},
+ Rightarrow/.code={\tikzcdset{double line}\pgfsetarrows{tikzcd implies cap-tikzcd implies}},
+ leftarrow/.code={\pgfsetarrows{tikzcd to-tikzcd cap}},
+ Leftarrow/.code={\tikzcdset{double line}\pgfsetarrows{tikzcd implies-tikzcd implies cap}},
+ leftrightarrow/.code={\pgfsetarrows{tikzcd to-tikzcd to}},
+ Leftrightarrow/.code={\tikzcdset{double line}\pgfsetarrows{tikzcd implies-tikzcd implies}},
+ mapsto/.code={\pgfsetarrows{tikzcd bar-tikzcd to}},
+ mapsfrom/.code={\pgfsetarrows{tikzcd to-tikzcd bar}},
+ Mapsto/.code={\tikzcdset{double line}\pgfsetarrows{tikzcd implies bar-tikzcd implies}},
+ Mapsfrom/.code={\tikzcdset{double line}\pgfsetarrows{tikzcd implies-tikzcd implies bar}},
+ hookrightarrow/.code={\pgfsetarrows{tikzcd right hook-tikzcd to}},
+ hookleftarrow/.code={\pgfsetarrows{tikzcd to-tikzcd left hook}},
+ rightharpoonup/.code={\pgfsetarrows{tikzcd cap-tikzcd left to}},
+ rightharpoondown/.code={\pgfsetarrows{tikzcd cap-tikzcd right to}},
+ leftharpoonup/.code={\pgfsetarrows{tikzcd right to-tikzcd cap}},
+ leftharpoondown/.code={\pgfsetarrows{tikzcd left to-tikzcd cap}},
+ rightarrowtail/.code={\pgfsetarrows{tikzcd to reversed-tikzcd to}},
+ leftarrowtail/.code={\pgfsetarrows{tikzcd to-tikzcd to reversed}},
+ twoheadrightarrow/.code={\pgfsetarrows{tikzcd cap-tikzcd double to}},
+ twoheadleftarrow/.code={\pgfsetarrows{tikzcd double to-tikzcd cap}},
+ no head/.code={\pgfsetarrowsend{tikzcd cap}},
+ dash/.code={\pgfsetarrows{tikzcd cap-tikzcd cap}},
+ dashrightarrow/.code={\tikzcdset{rightarrow,dashed}},
+ dashleftarrow/.code={\tikzcdset{leftarrow,dashed}},
+ equal/.code={\tikzcdset{double line}\pgfsetarrows{tikzcd implies cap-tikzcd implies cap}},
+ equals/.code={\tikzcdset{equal}},
+ rightsquigarrow/.code={\tikzcdset{rightarrow,squiggly}},
+ leftsquigarrow/.code={\tikzcdset{leftarrow,squiggly}},
+ leftrightsquigarrow/.code={\tikzcdset{leftrightarrow,squiggly}},
+ squiggly/.code={%
+ \pgfutil@ifundefined{tikz@library@decorations.pathmorphing@loaded}%
+ {\pgfutil@packageerror{tikz-cd}{You need to say %
+ \string\usetikzlibrary{decorations.pathmorphing} to use squiggly arrows}{}}{}%
+ \pgfkeysalso{
+ /tikz/decorate,
+ /tikz/decoration={
+ zigzag,
+ segment length=9.25\pgflinewidth,
+ amplitude=1.9\pgflinewidth,
+ post=lineto, post length=6\pgflinewidth,
+ pre=lineto, pre length=6\pgflinewidth,
+ #1}}}}
+
+% The `Latin Modern' arrow style
+\pgfkeysdef{/tikz/commutative diagrams/arrow style/Latin Modern}{%
+ \tikzcdset{
+ tikzcd bar/.tip={Bar[width=+0pt 12 .992,line cap=round]},
+ tikzcd left hook/.tip={Hooks[width=+0pt 15,length=+0pt 4.2,arc=190,harpoon,line cap=round]}}}
+
+% The `tikz' arrow style
+\pgfkeysdef{/tikz/commutative diagrams/arrow style/tikz}{%
+ \tikzcdset{
+ tikzcd to/.tip={>},
+ tikzcd bar/.tip={Bar[width=+3pt 4 0.9]},
+ tikzcd left hook/.tip={Hooks[harpoon]},
+ tikzcd double to/.tip={tikzcd to[]tikzcd to}}}
+
+% The `math font' arrow style
+%
+% If your font does not define the command \mapsfrom, do so by saying
+% \def\mapsfrom{\pgfpicture\pgfsetbaseline{+0pt}\pgftransformxscale{-1}\pgftext[base]{$\mapsto$}\endpgfpicture}
+%
+% The method used to guess the correct value of `double distance'
+% inside the `double line' style is not robust at all. If it fails,
+% set
+% \tikzcdset{double line/.append style={double distance=2*rule_thickness}}
+% and find the correct value for `double distance' by trial and error
+% (or measure the distance between the \Rightarrow stems in a font
+% editor).
+%
+\pgfkeysdef{/tikz/commutative diagrams/arrow style/math font}{%
+ \tikzcdset{
+ tikzcd to/.tip={Glyph[glyph math command=rightarrow]},
+ tikzcd cap/.tip={Glyph[glyph math command=leftarrow]},
+ tikzcd to reversed/.tip={Glyph[glyph math command=leftarrowtail]},
+ tikzcd bar/.tip={Glyph[glyph math command=mapsfrom]},
+ tikzcd left hook/.tip={Glyph[glyph math command=hookleftarrow]},
+ tikzcd right hook/.tip={Glyph[glyph math command=hookleftarrow, swap]},
+ tikzcd implies/.tip={Glyph[glyph math command=Rightarrow, glyph length=1.2ex]},
+ tikzcd implies cap/.tip={Glyph[glyph math command=Leftarrow]},
+ tikzcd implies bar/.tip={Glyph[glyph math command=Mapsfrom]},
+ tikzcd double to/.tip={Glyph[glyph math command=twoheadrightarrow, glyph length=1.4ex]},
+ tikzcd left to/.tip={Glyph[glyph math command=rightharpoonup]},
+ tikzcd right to/.tip={Glyph[glyph math command=rightharpoonup,swap]},
+ double line/.append code={\tikzset{double distance={2*(height("$=$")-axis_height-rule_thickness)}}},
+ dashed/.code={\tikzset{dash pattern=on 0.8ex off 0.4ex, dash phase=0.8ex}},
+ squiggly/.default={pre length=1ex, post length=1ex}}}
+
+% Default settings
+\tikzcdset{
+ every arrow/.style={
+ /tikz/draw,
+ /tikz/line width=rule_thickness,
+ /tikz/commutative diagrams/rightarrow},
+ every label/.style={
+ /tikz/auto,
+ /tikz/font=\everymath\expandafter{\the\everymath\scriptstyle},
+ /tikz/inner sep=+0.5ex},
+ every cell/.style={
+ /tikz/shape={asymmetrical rectangle},
+ /tikz/inner xsep=+1ex,
+ /tikz/inner ysep=+0.85ex},
+ every matrix/.style={/tikz/inner sep=+0pt},
+ every diagram/.style={
+ /tikz/commutative diagrams/row sep=normal,
+ /tikz/commutative diagrams/column sep=normal,
+ /tikz/baseline=+0pt},
+ 1-row diagram/.style={/tikz/baseline/.expanded=(\tikzcdmatrixname.base)},
+ math mode=true,
+ center yshift/.initial=axis_height,
+ row sep/huge/.initial=+3.6em,
+ row sep/large/.initial=+2.7em,
+ row sep/normal/.initial=+1.8em,
+ row sep/scriptsize/.initial=+1.35em,
+ row sep/small/.initial=+0.9em,
+ row sep/tiny/.initial=+0.45em,
+ column sep/huge/.initial=+4.8em,
+ column sep/large/.initial=+3.6em,
+ column sep/normal/.initial=+2.4em,
+ column sep/scriptsize/.initial=+1.8em,
+ column sep/small/.initial=+1.2em,
+ column sep/tiny/.initial=+0.6em,
+ crossing over clearance/.initial=+1.5ex,
+ shift left/.default=+0.56ex,
+ shift right/.default=1,
+ background color/.initial=white}
+
+\endinput