%%
%% This is file `sctkzsym-base.sty', part of scsnowman package.
%% Maintained on GitHub:
%% https://github.com/aminophen/scsnowman
%%
%% Copyright (c) 2015-2023 Hironobu Yamashita
%%   Email   :  h.y.acetaminophen[a t]gmail.com
%%   GitHub  :  https://github.com/aminophen
%%   Blog    :  http://acetaminophen.hatenablog.com/
%%   Twitter :  @aminophen
%%
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{sctkzsym-base}
  [2023/02/23 v1.3c Base for emoji variants using TikZ]
\RequirePackage{tikz}% pgfutil-latex.def requires everyshi
\RequirePackage{keyval}
%
\ifx\pfmtversion\@undefined\else
  \ifx\@EveryShipout@Output\@undefined
    % LaTeX2e 2020-10-01: an emulation by ``everyshi-ltx.sty''
    % => pLaTeX2e 2020-10-01 natively supports it
  \else
    % older: the real ``everyshi.sty'' is loaded
    \IfFileExists{pxeveryshi.sty}{\RequirePackage{pxeveryshi}}{}
  \fi
\fi
%
% prepare for options
\newif\ifsctkzsym@document
\newif\ifsctkzsym@qed
\newif\ifsctkzsym@item
%
% options
\DeclareOption{documentX}{\sctkzsym@documenttrue}
\DeclareOption{nodocumentX}{\sctkzsym@documentfalse}
\DeclareOption{qedX}{\sctkzsym@qedtrue}
\DeclareOption{noqedX}{\sctkzsym@qedfalse}
\DeclareOption{itemX}{\sctkzsym@itemtrue}
\DeclareOption{noitemX}{\sctkzsym@itemfalse}
\ExecuteOptions{documentX,qedX,itemX}
\ProcessOptions\relax
%
% save QED symbol before change (joke)
\ifsctkzsym@qed
  \def\sctkzsym@saving@qedsymbol{%
    \ifx\qedsymbol\@undefined\else
      \let\sctkzsym@saved@qedsymbol\qedsymbol
    \fi
  }
  % if `amsthm' is already loaded, save it now
  \sctkzsym@saving@qedsymbol
  % otherwise, saving is delayed till \begin{document}
  % (hope \makeqed... is not already executed...)
  \ifx\sctkzsym@saved@qedsymbol\@undefined
    \AtBeginDocument{\sctkzsym@saving@qedsymbol}
  \fi
  \newcommand{\makeqedother}{%
    \let\qedsymbol\sctkzsym@saved@qedsymbol
  }
\fi
%
% save item label before change (joke)
\ifsctkzsym@item
  \let\sctkzsym@saved@labelitemi\labelitemi
  \let\sctkzsym@saved@labelitemii\labelitemii
  \let\sctkzsym@saved@labelitemiii\labelitemiii
  \let\sctkzsym@saved@labelitemiv\labelitemiv
  \newcommand{\makeitemother}{%
    \let\labelitemi\sctkzsym@saved@labelitemi
    \let\labelitemii\sctkzsym@saved@labelitemii
    \let\labelitemiii\sctkzsym@saved@labelitemiii
    \let\labelitemiv\sctkzsym@saved@labelitemiv
  }
\fi
%
% key definitions
%  * any value; if none, 'true' is assumed
\newcommand{\sctkzsym@define@key@withbool}[2]{%
  \define@key{sctkzsym@#1}{#2}[true]{\expandafter\def\csname sctkzsym@#1@#2\endcsname{##1}}%
  \expandafter\newif\csname ifsctkzsym@#1@#2\endcsname
}
%  * any value; if none, an error will be raised
\newcommand{\sctkzsym@define@key@wodefault}[2]{%
  \define@key{sctkzsym@#1}{#2}{\expandafter\def\csname sctkzsym@#1@#2\endcsname{##1}}%
}
%  * one from arg #3; arg #3 should be comma-separated list of candidates
\newcommand{\sctkzsym@define@key@withword}[3]{%
  \define@key{sctkzsym@#1}{#2}{\expandafter\def\csname sctkzsym@#1@#2\endcsname{##1}}%
  % register known values (used in key handling)
  \sctkzsym@hndlcnt\z@
  \edef\@tempa{\zap@space#3 \@empty}%
  \@for\@tempa:=\@tempa\do{%
    \advance\sctkzsym@hndlcnt\@ne
    \expandafter\let\csname sctkzsym@#1@#2@\romannumeral\sctkzsym@hndlcnt\endcsname\@tempa}%
}
% other known values (used in key handling)
\def\sctkzsym@true{true}   % for bool strcmp
\def\sctkzsym@false{false} % for bool strcmp
%
% key handling
\newcount\sctkzsym@hndlcnt % for withword loop
\let\sctkzsym@status\relax % for withword status
\newcommand{\sctkzsym@hndl@key@withbool}[2]{%
  \expandafter\ifx\csname sctkzsym@#1@#2\endcsname\sctkzsym@false\relax
    \csname sctkzsym@#1@#2false\endcsname % <key>=false
  \else
    \csname sctkzsym@#1@#2true\endcsname  % <key>=true/<color>
    \expandafter\ifx\csname sctkzsym@#1@#2\endcsname\sctkzsym@true\relax
      % <key>=true; <default-color>
      \expandafter\def\csname sctkzsym@#1@#2\endcsname{\sctkzsym@defaultcolor}%
    \fi
  \fi
}
\newcommand{\sctkzsym@hndl@key@onlybool}[2]{%
  \expandafter\ifx\csname sctkzsym@#1@#2\endcsname\sctkzsym@false\relax
    \csname sctkzsym@#1@#2false\endcsname % <key>=false
  \else
    \expandafter\ifx\csname sctkzsym@#1@#2\endcsname\sctkzsym@true\relax
      \csname sctkzsym@#1@#2true\endcsname  % <key>=true
    \else
      \PackageError{sc#1}{Only true/false allowed for key `#2'}\@ehc
      \csname sctkzsym@#1@#2false\endcsname % <key>=false
    \fi
  \fi
}
\newcommand{\sctkzsym@hndl@key@withword}[2]{{%
  % initialize
  \@tempcnta\@ne
  \let\sctkzsym@status\relax
  % check through the registered candidate values
  \loop\expandafter\ifx\csname sctkzsym@#1@#2@\romannumeral\@tempcnta\endcsname\relax\else
    \ifx\sctkzsym@status\relax
      \expandafter\ifx\csname sctkzsym@#1@#2\expandafter\endcsname
        \csname sctkzsym@#1@#2@\romannumeral\@tempcnta\endcsname\relax
          \def\sctkzsym@status{0}%
      \fi
    \fi
    \advance\@tempcnta\@ne
  \repeat
  % if the status is still not zero, user-specified value is invalid; throw an error
  \ifx\sctkzsym@status\relax
    \PackageError{sc#1}{Unsupported value `\csname sctkzsym@#1@#2\endcsname' for #2}\@ehc
  \fi
}}
%
% setup for tikzpicture
\newlength{\sctkzsym@coord@baseline}
\newlength{\sctkzsym@coord@scl}
\newcommand*{\set@sctkzsym@coord@scl}[1]{\pgfmathsetlength{\sctkzsym@coord@scl}{#1\p@}}
\newcommand{\sctkzsym@beginyokobox}{\ifx\tate\@undefined\else\leavevmode\hbox\bgroup\yoko\fi}
\newcommand{\sctkzsym@endyokobox}{\ifx\tate\@undefined\else\egroup\fi}
\newcommand{\sctkzsym@defaultcolor}{}
\newcommand{\sctkzsym@defaultanticolor}{white}
%
\endinput
%%
%% End of file `sctkzsym-base.sty'.