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fix: add shortcuts to uninstallcommands #1160

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fix: add shortcuts to uninstallcommands #1160

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53beee1
fix: add shortcuts to uninstallcommands
hmenke May 22, 2022
c137091
fixup! fix: add shortcuts to uninstallcommands
muzimuzhi May 22, 2022
76d708c
fixup! fix: add shortcuts to uninstallcommands
muzimuzhi May 23, 2022
a26ef26
fixup! fix: add shortcuts to uninstallcommands
muzimuzhi May 23, 2022
d39c2a4
fixup! fix: add shortcuts to uninstallcommands
muzimuzhi May 23, 2022
e26218b
fixup! fix: add shortcuts to uninstallcommands
muzimuzhi Jun 9, 2022
2f09b26
feat: allow simple picture nesting
muzimuzhi Jun 9, 2022
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2 changes: 2 additions & 0 deletions doc/generic/pgf/CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,8 @@ lot of contributed changes. Thanks to everyone who volunteered their time!
- Make `graphdrawing` work with `name prefix` and `name suffix` options #1087
- pgfkeys was a bit too relaxed around `\relax` #1132
- Remove spurious spaces for `3d view` #1151
- Add shortcuts defined by `\tikzaddtikzonlycommandshortcut(def|let)` to
uninstallcommands #1160

### Changed

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53 changes: 53 additions & 0 deletions testfiles/gh-pull-1160.lvt
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@@ -0,0 +1,53 @@
\documentclass{minimal}
\input{pgf-regression-test}

\RequirePackage{tikz}

\begin{document}

\START

\def\myspecialsauce{\node{specialsauce}}

\protected\long\def\ASSERTEQUAL#1#2{%
\ifx#1#2\TRUE\else\FALSE\fi
}
\let\UNDEFINED\undefined
\def\specialsauceOUTER{outer definition}


\BEGINTEST{\tikzaddtikzonlycommandshortcutlet, undefined}
\tikzaddtikzonlycommandshortcutlet{\specialsauce}{\myspecialsauce}
\begin{tikzpicture}
\specialsauce;
\node at (0,1) {\ASSERTEQUAL\specialsauce\UNDEFINED};
\end{tikzpicture}
\ENDTEST

\BEGINTEST{\tikzaddtikzonlycommandshortcutlet, defined}
\let\specialsauce\specialsauceOUTER
\tikzaddtikzonlycommandshortcutlet{\specialsauce}{\myspecialsauce}
\begin{tikzpicture}
\specialsauce;
\node at (0,1) {\ASSERTEQUAL\specialsauce\specialsauceOUTER};
\end{tikzpicture}
\ENDTEST

\BEGINTEST{\tikzaddtikzonlycommandshortcutdef, undefined}
\tikzaddtikzonlycommandshortcutdef{\specialsauce}{\myspecialsauce}
\begin{tikzpicture}
\specialsauce;
\node at (0,1) {\ASSERTEQUAL\specialsauce\UNDEFINED};
\end{tikzpicture}
\ENDTEST

\BEGINTEST{\tikzaddtikzonlycommandshortcutdef, defined}
\let\specialsauce\specialsauceOUTER
\tikzaddtikzonlycommandshortcutdef{\specialsauce}{\myspecialsauce}
\begin{tikzpicture}
\specialsauce;
\node at (0,1) {\ASSERTEQUAL\specialsauce\specialsauceOUTER};
\end{tikzpicture}
\ENDTEST

\END
22 changes: 22 additions & 0 deletions testfiles/gh-pull-1160.tlg
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This is a generated file for the l3build validation system.
Don't change this file in any respect.
============================================================
TEST 1: \tikzaddtikzonlycommandshortcutlet , undefined
============================================================
TRUE
============================================================
============================================================
TEST 2: \tikzaddtikzonlycommandshortcutlet , defined
============================================================
TRUE
============================================================
============================================================
TEST 3: \tikzaddtikzonlycommandshortcutdef , undefined
============================================================
TRUE
============================================================
============================================================
TEST 4: \tikzaddtikzonlycommandshortcutdef , defined
============================================================
TRUE
============================================================
28 changes: 24 additions & 4 deletions tex/generic/pgf/frontendlayer/tikz/tikz.code.tex
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Expand Up @@ -1899,16 +1899,36 @@
% #1: shortcut command inside of tikzpicture
% #2: real command name
\def\tikzaddtikzonlycommandshortcutlet#1#2{%
\expandafter\def\expandafter\tikz@installcommands\expandafter{\tikz@installcommands
\let#1=#2%
\edef\tikz@installcommands{\pgfutil@unexpanded\expandafter{\tikz@installcommands}%
\ifdefined#1%
\let\expandafter\noexpand\csname tikz@orig\detokenize{#1}\endcsname=\noexpand#1%
\fi
\pgfutil@unexpanded{\let#1=#2}%
}%
\edef\tikz@uninstallcommands{\pgfutil@unexpanded\expandafter{\tikz@uninstallcommands}%
\ifdefined#1%
\let\noexpand#1\expandafter\noexpand\csname tikz@orig\detokenize{#1}\endcsname
\else
\pgfutil@unexpanded{\let#1=\pgfutil@undefined}%
\fi
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This won't work because now \ifdefined is executed at the point where \tikzaddtikzonlycommandshortcutlet is used. However at this point #2 might not be defined yet, so code like this will restore the wrong thing

\tikzaddtikzonlycommandshortcutlet{\oops}{\specialsauce} % <-- \specialsauce not yet defined
\def\specialsauce{tada}

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\ifdefined always acts on #1 so when #2 is defined is irrelevant here and I suppose you want to say

However at this point #1 (not #2) might not be defined yet, so code like this will restore the wrong thing

\tikzaddtikzonlycommandshortcutlet{\oops}{\myspecialsauce} % <-- \oops not yet defined
\def\oops{tada}

Or maybe you noticed in the patch to uninstallcommands, we should check if \tikz@orig#1 is defined.

Anyway I find it suffices to just construct cs from \csname tikz@orig ...\endcsname before adding it to installcommands/uninstallcommands.

}%
}%

% Has the same effect as \tikzaddtikzonlycommandshortcutlet but uses
% \def#1{#2} instead of \let.
\def\tikzaddtikzonlycommandshortcutdef#1#2{%
\expandafter\def\expandafter\tikz@installcommands\expandafter{\tikz@installcommands
\def#1{#2}%
\edef\tikz@installcommands{\pgfutil@unexpanded\expandafter{\tikz@installcommands}%
\ifdefined#1%
\let\expandafter\noexpand\csname tikz@orig\detokenize{#1}\endcsname=\noexpand#1%
\fi
\pgfutil@unexpanded{\def#1{#2}}%
}%
\edef\tikz@uninstallcommands{\pgfutil@unexpanded\expandafter{\tikz@uninstallcommands}%
\ifdefined#1%
\let\noexpand#1\expandafter\noexpand\csname tikz@orig\detokenize{#1}\endcsname
\else
\pgfutil@unexpanded{\let#1=\pgfutil@undefined}%
\fi
}%
}%

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