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allows use of tikzcd inside tikzpicture as scope #3

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allows use of tikzcd inside tikzpicture as scope #3

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14 changes: 10 additions & 4 deletions tikzlibrarycd.code.tex
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@
% 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/>.

Expand All @@ -22,6 +22,7 @@
\def\tikzcdset{\pgfqkeys{/tikz/commutative diagrams}}

\tikzcdset{
name/.style={/tikz/every matrix/.append style={name=#1}},
arrows/.code={\tikzcdset{every arrow/.append style={#1}}},
labels/.code={\tikzcdset{every label/.append style={#1}}},
cells/.code={\tikzcdset{every cell/.append style={#1}}},
Expand Down Expand Up @@ -85,7 +86,7 @@
}{%
\def#1{\tikzcdmatrixname-#2}%
}}

% The unknown key handler and direction argument parser
\tikzcdset{
.unknown/.code={%
Expand Down Expand Up @@ -124,7 +125,12 @@
\def\tikzcd@@{\pgfutil@ifnextchar[{\tikzcd@handle@shortcuts@next\tikzcd@}{\tikzcd@[]}}

\def\tikzcd@[#1]{%
\tikzpicture[/tikz/commutative diagrams/.cd,every diagram,#1]%
\tikzifinpicture{%
\let\tikzcdpicture\scope\let\endtikzcdpicture\endscope% <-- inside tikzpicture : start a scope
}{%
\let\tikzcdpicture\tikzpicture\let\endtikzcdpicture\endtikzpicture% <-- outside tikzpicture : start a tikzpicture
}%
\tikzcdpicture[/tikz/commutative diagrams/.cd,every diagram,#1]%
\ifx\arrow\tikzcd@arrow%
\pgfutil@packageerror{tikz-cd}{Diagrams cannot be nested}{}%
\fi%
Expand Down Expand Up @@ -162,7 +168,7 @@
\tikzcd@before@paths@hook%
\tikzcd@savedpaths%
\endgroup%
\endtikzpicture%
\endtikzcdpicture%
\ifnum0=`{}\fi}

% The arrow commands
Expand Down