memoize-tikz.tex

% Command handler for tikz:

\makeatletter % todo: this can't be here, if it's for plain TeX as well

% \tikz <animation spec> [<options>] {<picture code>}
% or
% \tikz <animation spec> [<options>] <picture code>;
% 
% <animation spec> = :key={value}, ...

\def\mmz@tikz{%
  \mmz@temptoks={}%
  \mmz@tikz@anim
}
\def\mmz@tikz@anim{%
  \pgfutil@ifnextchar[{\mmz@tikz@opt}{%
    \pgfutil@ifnextchar:{\mmz@tikz@anim@a}{%
      \mmz@tikz@code}}%]
}%
\def\mmz@tikz@anim@a#1=#2{%
  \apptotoks\mmz@temptoks{#1={#2}}%
  \mmz@tikz@anim
}%
\def\mmz@tikz@opt[#1]{%
  \apptotoks\mmz@temptoks{[#1]}%
  \mmz@tikz@code
}
\def\mmz@tikz@code{%
  \pgfutil@ifnextchar\bgroup\mmz@tikz@braced\mmz@tikz@single
}
\def\mmz@tikz@braced#1{\apptotoks\mmz@temptoks{{#1}}\mmz@tikz@done}
\def\mmz@tikz@single#1;{\apptotoks\mmz@temptoks{#1;}\mmz@tikz@done}
\def\mmz@tikz@done{%
  \expandafter\MemoizeWrapper\expandafter{%
    \expandafter\tikz\the\mmz@temptoks
  }%
}

\memoizeset{
  handler=\tikz\mmz@tikz,
}