PharmTeX.ini

%%% PharmTeX Class ini file, part of the PharmTeX platform.
%%% Created from this post by Heiko Oberdiek: https://tex.stackexchange.com/questions/131207/own-cls-to-fmt-conversion.
%%% Copyright (C) 2023 Christian Hove Claussen (contact@pharmtex.org).
%%% This program is free software: You can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program (see file named LICENSE). If not, see <https://www.gnu.org/licenses/>.
% Check for e-TeX
\expandafter\ifx\csname eTeXversion\endcsname\relax
  \begingroup
    \catcode`\{=1
    \catcode`\}=2
    \catcode`\^=7
    \newlinechar=10 %
    \def\space{ }
    \def\MessageBreak{^^J\space\space}
    \errmessage{%
      The eTeX extension is missing.\MessageBreak
      It can be enabled by option `-etex`\MessageBreak
      or starting the first filename with a star `*'.\MessageBreak
      The format generation is aborted%
    }
  \endgroup
  \csname fi\endcsname % end \ifx
  \csname @@end\endcsname % for the case a LaTeX format is already loaded
  \end % end job
\fi

% Load class
\NeedsTeXFormat{LaTeX2e}
\documentclass{PharmTeX}\relax

% Now we have to redefine \documentclass to get valid user documents.
\makeatletter
\renewcommand*{\documentclass}[2][]{%
  \def\reserved@a{#2}%
  \ifx\reserved@a\PharmTeX@name
    \def\reserved@a{#1}%
    \ifx\reserved@a\@empty
    % \else % warning not needed, since PharmTeX checks for new options and recompiles .fmt file if needed
      % \ClassWarningNoLine{PharmTeX}{%
        % This format has already loaded the class\MessageBreak
        % and does not support global options.\MessageBreak
        % The following options are ignored:\MessageBreak
        % \@spaces[#1]%
      % }%
    \fi 
      \expandafter\PharmTeX@datecheck
  \else
    \ClassError{PharmTeX}{%
      This format has already loaded the class `PharmTeX'\MessageBreak
      and cannot be used with other classes.\MessageBreak
      LaTeX run is aborted%
    }\@ehd
    \expandafter\@@end % abort job.
  \fi
}
\newcommand*{\PharmTeX@name}{PharmTeX}
\newcommand*{\PharmTeX@datecheck}[1][]{%
  \@ifclasslater{PharmTeX}{#1}{%
  }{%
    \@latex@warning@no@line{%
      You have requested,\on@line,
      version\MessageBreak
      `#1' of class\space\PharmTeX@name,\MessageBreak
      but only version\MessageBreak
      `\csname ver@\PharmTeX@name.cls\endcsname'\MessageBreak
      is available in this format%
    }%
  }%  
}     

% Format identification
\begingroup
  \edef\x{%
    \noexpand\typeout{%
      Class \PharmTeX@name\space \@nameuse{ver@\PharmTeX@name.cls}.%
    }%
    \noexpand\typeout{%
      Format created at \the\year/\two@digits\month/\two@digits\day
      \space by class author.%
    }%
  }%  
\expandafter\endgroup
\expandafter\everyjob\expandafter{\the\expandafter\everyjob\x}
\makeatother

% Generate format
\dump
\endinput