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% (The MIT License)
%
% Copyright (c) 2021-2022 Yegor Bugayenko
%
% Permission is hereby granted, free of charge, to any person obtaining a copy
% of this software and associated documentation files (the 'Software'), to deal
% in the Software without restriction, including without limitation the rights
% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
% copies of the Software, and to permit persons to whom the Software is
% furnished to do so, subject to the following conditions:
%
% The above copyright notice and this permission notice shall be included in all
% copies or substantial portions of the Software.
%
% THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
% SOFTWARE.

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{iexec}[2022/01/08 0.5.0 Inputable Shell Executions]

\RequirePackage{shellesc}
\RequirePackage{pgfkeys}
\RequirePackage{xkeyval}

\makeatletter\newif\ifiexec@trace
\DeclareOptionX{trace}{\iexec@tracetrue}
\ProcessOptionsX\relax\makeatother

\makeatletter\pgfkeys{
  /iexec/.is family,
  /iexec,
  stdout/.estore in = \iexec@stdout,
  stdout/.default = iexec.tmp,
  trace/.estore in = \iexec@traceit,
  quiet/.estore in = \iexec@quiet,
  stdout
}\makeatother

\makeatletter\newcommand\iexec[2][]{%
  \pgfkeys{/iexec, #1}%
  \ifnum\pdfshellescape=1\else%
    \PackageError{iexec}{You must run latex with --shell-escape option}{}%
  \fi%
  \begingroup%
    \let\%\@percentchar%
    \let\\\@backslashchar%
    \let\{\@charlb%
    \let\}\@charrb%
    \ShellEscape{#2 > \iexec@stdout}%
    \message{iexec: [#2 > \iexec@stdout]}%
  \endgroup%
  \ifdefined\iexec@quiet
    \message{iexec: Due to 'quiet' we didn't read the content of '\iexec@stdout'}%
  \else%
    \input{\iexec@stdout}%
    \message{iexec: The content of '\iexec@stdout' was included into the document}%
  \fi%
  \ifiexec@trace%
    \message{iexec: Due to package option 'trace', the file '\iexec@stdout' was not deleted}%
  \else%
    \ifdefined\iexec@traceit%
      \message{iexec: Due to 'trace' option, the file '\iexec@stdout' was not deleted}%
    \else%
      \ShellEscape{rm \iexec@stdout}%
      \message{iexec: The file '\iexec@stdout' was deleted}%
    \fi%
  \fi%
}\makeatother

\endinput