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% Copyright 2022 by Qrrbrbirlbel
%
% This file may be distributed and/or modified
%
% 1. under the LaTeX Project Public License and/or
% 2. under the GNU Free Documentation License.
%
\input pgfmath.tex
%% Handlers
%% .pgfmath evaluates values given to keys in PGFmath before handing them over.
%% .pgfmath int truncates the result
%% .pgfmath strcat concatenates the given values
\pgfqkeys{/handlers}{
.pgfmath/.code=%
\begingroup
\pgfmathparse{#1}%
\expandafter\endgroup\expandafter
\pgfkeys@exp@call\expandafter{\pgfmathresult},
.pgfmath int/.code=%
\begingroup
\pgfmathint{#1}%
\expandafter\endgroup\expandafter
\pgfkeys@exp@call\expandafter{\pgfmathresult},
.pgfmath wrap/.code 2 args={%
\def\pgfkeys@temp##1{\def\pgfkeys@temp{#1}}%
\begingroup
\pgfmathparse{#2}%
\expandafter\pgfkeys@temp\expandafter{\pgfmathresult}%
\expandafter\endgroup\expandafter
\pgfkeys@exp@call\expandafter{\pgfkeys@temp}%
},
.pgfmath if/.code n args={3}{%
\begingroup
\pgfmathifthenelse{#1}{"1"}{"0"}%
\expandafter\endgroup\expandafter
\ifcase\pgfmathresult\relax
\expandafter\pgfutil@firstoftwo
\else
\expandafter\pgfutil@secondoftwo
\fi
{\pgfkeys@exp@call{#3}}%
{\pgfkeys@exp@call{#2}}%
},
.if/.code n args={4}{%
\if#1#2%
\expandafter\pgfutil@firstoftwo
\else
\expandafter\pgfutil@secondoftwo
\fi
{\pgfkeys@exp@call{#3}}%
{\pgfkeys@exp@call{#4}}%
},
.ifnum/.code n args={3}{%
\ifnum#1\relax
\expandafter\pgfutil@firstoftwo
\else
\expandafter\pgfutil@secondoftwo
\fi
{\pgfkeys@exp@call{#2}}%
{\pgfkeys@exp@call{#3}}%
},
.ifdim/.code n args={3}{%
\ifdim#1\relax
\expandafter\pgfutil@firstoftwo
\else
\expandafter\pgfutil@secondoftwo
\fi
{\pgfkeys@exp@call{#2}}%
{\pgfkeys@exp@call{#3}}%
},
.ifx/.code n args={4}{%
\ifx#1#2%
\expandafter\pgfutil@firstoftwo
\else
\expandafter\pgfutil@secondoftwo
\fi
{\pgfkeys@exp@call{#3}}%
{\pgfkeys@exp@call{#4}}%
},
.ifxempty/.code n args={3}{%
\edef\pgfkeys@temp{#1}%
\pgfutil@ifxempty\pgfkeys@temp{\pgfkeys@exp@call{#2}}{\pgfkeys@exp@call{#3}}%
},
.ifempty/.code n args={3}{%
\pgfutil@ifempty{#1}{\pgfkeys@exp@call{#2}}{\pgfkeys@exp@call{#3}}%
},
%% http://tex.stackexchange.com/a/144187/16595
%% key/.List={(point-1),(point-2),(point-...),(point-6)} will call
%% key=(point-1)(point-2)(point-3)(point-4)(point-5)(point-6)
.List/.code=%
\let\pgfkeys@global@temp\pgfutil@empty
\foreach\pgfkeys@temp in{#1}{%
\expandafter\pgfutil@g@addto@macro\expandafter\pgfkeys@global@temp\expandafter{\pgfkeys@temp}%
}%
\expandafter\pgfkeys@exp@call\expandafter{\pgfkeys@global@temp},
.--/.code=% decrements a value (only TeX integers!)
\pgfkeyssetevalue{\pgfkeyscurrentpath}
{\the\numexpr\pgfkeysvalueof{\pgfkeyscurrentpath}-1\relax},
.++/.code=% increments a value (only TeX integers!)
\pgfkeyssetevalue{\pgfkeyscurrentpath}
{\the\numexpr\pgfkeysvalueof{\pgfkeyscurrentpath}+1\relax},
.value/.code=% copies the value of one key to another w/o expanding it
\pgfkeysgetvalue{#1}\pgfkeys@temp
\expandafter\pgfkeys@exp@call\expandafter{\pgfkeys@temp}}
}
\pgfqkeys{/utils}{
if/.code n args={3}{%
\begingroup
\pgfmathifthenelse{#1}{"1"}{"0"}%
\expandafter\endgroup\expandafter
\ifcase\pgfmathresult\relax
\expandafter\pgfutil@firstoftwo
\else
\expandafter\pgfutil@secondoftwo
\fi
{\pgfkeysalso{#3}}
{\pgfkeysalso{#2}}%
},
TeX/if/.code n args={4}{%
\if#1#2\expandafter\pgfutil@firstoftwo\else\expandafter\pgfutil@secondoftwo\fi
{\pgfkeysalso{#3}}{\pgfkeysalso{#4}}%
},
TeX/ifnum/.code n args={3}{%
\ifnum#1\relax\expandafter\pgfutil@firstoftwo\else\expandafter\pgfutil@secondoftwo\fi
{\pgfkeysalso{#2}}{\pgfkeysalso{#3}}%
},
TeX/ifdim/.code n args={3}{%
\ifdim#1\relax\expandafter\pgfutil@firstoftwo\else\expandafter\pgfutil@secondoftwo\fi
{\pgfkeysalso{#2}}{\pgfkeysalso{#3}}%
},
TeX/ifx/.code n args={4}{%
\ifx#1#2\relax\expandafter\pgfutil@firstoftwo\else\expandafter\pgfutil@secondoftwo\fi
{\pgfkeysalso{#3}}{\pgfkeysalso{#4}}%
},
TeX/ifxempty/.code n args={3}{%
\edef\pgfkeys@temp{#1}%
\pgfutil@ifxempty\pgfkeys@temp{\pgfkeysalso{#2}}{\pgfkeysalso{#3}}%
},
TeX/ifempty/.code n args={3}{%
\pgfutil@ifempty{#1}{\pgfkeysalso{#2}}{\pgfkeysalso{#3}}%
},
tex/.search also=/utils/TeX,
loops/do until/.code 2 args={\pgfutil@loop\pgfkeysalso{#1}#2\relax\pgfutil@repeat}%
}
\endinput
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